What are the cheapest airlines flying from San Francisco to London Heathrow Airport round-trip?

Currently priced at £489, Iberia will fly you from San Francisco to London Heathrow Airport and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Atlantic and Scandinavian Airlines - these airlines can fly you to your destination from £490 and £492, respectively. Users have found that Iberia is 25% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from San Francisco to London Heathrow Airport one-way?

To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £218. JetBlue flights start at £278 while deals on TAP AIR PORTUGAL start at £280 one-way.

What are the cheapest flights from San Francisco to London Heathrow Airport?

On average you can expect to pay £2,540 for a flight from San Francisco to London Heathrow Airport. The cheapest flight overall is £322 while the most popular route, (San Francisco - London Heathrow) is currently priced at £411.

What are the most reliable airlines from San Francisco to London Heathrow Airport?

Consider Air Canada (85%), Austrian Airlines (85%) or SWISS (85%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to London Heathrow Airport.

What are the most popular airlines that fly from San Francisco to London Heathrow Airport?

The most popular airlines flying from San Francisco to London Heathrow Airport are Air Canada, Finnair and British Airways. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from San Francisco to London Heathrow Airport?

Users have found that leaving on a Sunday can be a cost-effective option. It’s possible to save up to 16% on your flight compared to booking on days when demand is much higher.

What is the cheapest month to fly from San Francisco to London Heathrow Airport?

Our data shows that October tends to be the cheapest month to fly to London Heathrow Airport from San Francisco. Users have commonly found prices around £646 for the month, but tickets can be as low as £419. Due to multiple factors, prepare for potentially higher prices in June.

What airport do you fly from for flights from San Francisco to London Heathrow?

For a flight from San Francisco to London Heathrow, you will be flying from San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city. San Francisco is the only San Francisco airport and it handles 30 outbound flights to London Heathrow per day. 10 airlines have flights to London Heathrow from San Francisco on a regular basis.

Can I find deals for flights from San Francisco to Heathrow that include hotel bookings?

Yes. In addition to deals on San Francisco to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from San Francisco to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Heathrow.

Can I find deals for business class flights from San Francisco to Heathrow?

Yes. Cheapflights offers flight deals from San Francisco to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£218+ Flights from San Francisco to London Heathrow Airport

The best prices from San Francisco to London Heathrow are usually found in October or September, booked 26 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from San Francisco to Heathrow

Round-trip from	£489
One-way from	£218
Popular in	June
Cheapest in	October
Average price	£574

Iberia
29/1-5/2
1 total stop
26h 35m total
San Francisco to London

Search Deals

16/2
2 total stops
41h 48m total
San Francisco to London

Search Deals

High demand for flights, 21% potential price rise

Search Deals

Best time to find cheap flights, 4% potential price drop

Search Deals

Average for round-trip flights in January 2025

Search Deals

Find flight deals from San Francisco to Heathrow

Cheapest flights from San Francisco to Heathrow
Explore the most affordable flight options available from San Francisco to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 enero 2025.

mié. 29/110:40SFO - LHR

1 stop13h 55mIberia

mié. 12/211:45LHR - SFO

Nonstop11h 15mIberia

Deal found 16/1£489

dom. 9/216:40SFO - LHR

Nonstop10h 15mVirgin Atlantic

mar. 25/206:30LHR - SFO

1 stop13h 20mVirgin Atlantic

Deal found 16/1£490

mié. 7/519:40SFO - LHR

1 stop36h 20mScandinavian Airlines

dom. 18/518:40LHR - SFO

1 stop29h 50mScandinavian Airlines

Deal found 16/1£492

dom. 9/214:54SFO - LHR

2 stops37h 56mMultiple Airlines

mar. 25/215:15LHR - SFO

1 stop36h 55mMultiple Airlines

Deal found 16/1£495

mié. 12/216:40SFO - LHR

Nonstop10h 15mDelta

mié. 19/211:45LHR - SFO

1 stop32h 05mDelta

Deal found 16/1£502

mar. 11/209:00SFO - LHR

1 stop14h 55mKLM

mar. 25/206:30LHR - SFO

1 stop13h 20mKLM

Deal found 16/1£505

dom. 9/217:30SFO - LHR

Nonstop10h 30mFinnair

mar. 25/215:20LHR - SFO

Nonstop11h 25mFinnair

Deal found 16/1£506

jue. 24/416:20SFO - LHR

1 stop21h 45mTAP AIR PORTUGAL

jue. 1/519:50LHR - SFO

1 stop26h 45mTAP AIR PORTUGAL

Deal found 16/1£508

mar. 25/217:25SFO - LHR

Nonstop10h 35mUnited Airlines

mié. 19/308:55LHR - SFO

1 stop15h 30mUnited Airlines

Deal found 16/1£523

vie. 14/321:40SFO - LHR

Nonstop10h 35mBritish Airways

mié. 19/315:20LHR - SFO

Nonstop11h 25mBritish Airways

Deal found 16/1£527

mié. 5/320:35SFO - LHR

1 stop16h 10mJetBlue

mié. 12/312:20LHR - SFO

1 stop18h 54mJetBlue

Deal found 16/1£536

mié. 5/219:25SFO - LHR

1 stop14h 25mSWISS

jue. 20/208:55LHR - SFO

1 stop15h 30mSWISS

Deal found 15/1£538

Best flights from San Francisco to Heathrow
Discover carefully curated flight deals from San Francisco to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 enero 2025.

mié. 29/108:00SFO - LHR

1 stop15h 20mIberia

mié. 5/211:45LHR - SFO

Nonstop11h 15mIberia

Deal found 16/1£489

dom. 9/216:40SFO - LHR

Nonstop10h 15mVirgin Atlantic

mar. 25/206:30LHR - SFO

1 stop13h 20mVirgin Atlantic

Deal found 16/1£490

mié. 7/519:40SFO - LHR

1 stop36h 20mScandinavian Airlines

dom. 18/518:40LHR - SFO

1 stop29h 50mScandinavian Airlines

Deal found 16/1£492

mié. 12/216:40SFO - LHR

Nonstop10h 15mDelta

mié. 19/211:45LHR - SFO

1 stop32h 05mDelta

Deal found 16/1£502

mar. 11/209:00SFO - LHR

1 stop14h 55mKLM

mar. 25/206:30LHR - SFO

1 stop13h 20mKLM

Deal found 16/1£505

dom. 9/217:30SFO - LHR

Nonstop10h 30mFinnair

mar. 25/211:45LHR - SFO

Nonstop11h 15mFinnair

Deal found 16/1£506

jue. 24/416:20SFO - LHR

1 stop21h 45mTAP AIR PORTUGAL

jue. 1/519:50LHR - SFO

1 stop26h 45mTAP AIR PORTUGAL

Deal found 16/1£508

lun. 24/207:00SFO - LHR

2 stops17h 30mMultiple Airlines

mar. 4/306:30LHR - SFO

2 stops19h 00mMultiple Airlines

Deal found 16/1£520

mar. 25/217:25SFO - LHR

Nonstop10h 35mUnited Airlines

mié. 19/308:55LHR - SFO

1 stop15h 30mUnited Airlines

Deal found 16/1£523

vie. 14/321:40SFO - LHR

Nonstop10h 35mBritish Airways

vie. 21/311:45LHR - SFO

Nonstop11h 15mBritish Airways

Deal found 16/1£527

dom. 9/208:30SFO - LHR

2 stops17h 35mAir Canada

mar. 25/213:25LHR - SFO

2 stops15h 41mAir Canada

Deal found 16/1£529

mié. 5/320:35SFO - LHR

1 stop16h 10mJetBlue

mié. 12/312:20LHR - SFO

1 stop18h 54mJetBlue

Deal found 16/1£536

Direct flights from San Francisco to Heathrow
Explore direct flight options from San Francisco to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 enero 2025.

mar. 18/318:30SFO - LHR

Nonstop10h 30mBritish Airways

mar. 25/315:20LHR - SFO

Nonstop11h 25mBritish Airways

Deal found 16/1£492

dom. 9/216:40SFO - LHR

Nonstop10h 15mVirgin Atlantic

mar. 25/211:40LHR - SFO

Nonstop11h 05mVirgin Atlantic

Deal found 16/1£493

mar. 6/516:35SFO - LHR

Nonstop10h 25mIberia

mar. 20/514:15LHR - SFO

Nonstop11h 00mIberia

Deal found 15/1£495

dom. 9/217:30SFO - LHR

Nonstop10h 30mFinnair

mar. 25/211:45LHR - SFO

Nonstop11h 15mFinnair

Deal found 16/1£506

dom. 9/216:40SFO - LHR

Nonstop10h 15mDelta

jue. 20/211:40LHR - SFO

Nonstop11h 05mDelta

Deal found 16/1£511

mar. 1/419:40SFO - LHR

Nonstop10h 30mUnited Airlines

vie. 11/412:20LHR - SFO

Nonstop11h 05mUnited Airlines

Deal found 16/1£538

dom. 9/217:25SFO - LHR

Nonstop10h 35mAir Canada

mar. 25/213:45LHR - SFO

Nonstop11h 10mAir Canada

Deal found 16/1£554

vie. 31/112:50SFO - LHR

Nonstop10h 35mLufthansa

mar. 4/213:45LHR - SFO

Nonstop11h 10mLufthansa

Deal found 15/1£580

jue. 6/320:40SFO - LHR

Nonstop10h 35mAmerican Airlines

dom. 16/315:20LHR - SFO

Nonstop11h 25mAmerican Airlines

Deal found 15/1£584

sáb. 15/217:25SFO - LHR

Nonstop10h 35mBrussels Airlines

sáb. 22/213:45LHR - SFO

Nonstop11h 10mBrussels Airlines

Deal found 16/1£699

jue. 13/212:50SFO - LHR

Nonstop10h 35mAustrian Airlines

mié. 19/210:05LHR - SFO

Nonstop11h 10mAustrian Airlines

Deal found 16/1£725

Last-minute flights from San Francisco to Heathrow
Discover last-minute flight deals from San Francisco to Heathrow. Data last updated 17 enero 2025 and is based on user searches.

vie. 17/119:15SFO - LHR

1 stop32h 10mTAP AIR PORTUGAL

mar. 21/118:30LHR - SFO

1 stop28h 10mTAP AIR PORTUGAL

Deal found 16/1£517

mar. 21/107:00SFO - LHR

2 stops18h 20mMultiple Airlines

mar. 28/108:55LHR - SFO

1 stop15h 30mMultiple Airlines

Deal found 16/1£514

mar. 21/108:33SFO - LHR

2 stops16h 47mAir Canada

mar. 28/113:00LHR - SFO

2 stops16h 26mAir Canada

Deal found 16/1£541

mar. 21/108:00SFO - LHR

1 stop20h 05mBritish Airways

vie. 7/319:00LHR - SFO

1 stop22h 46mBritish Airways

Deal found 15/1£547

mar. 21/117:25SFO - LHR

Nonstop10h 35mSWISS

vie. 7/308:55LHR - SFO

1 stop15h 30mSWISS

Deal found 15/1£575

mar. 21/108:00SFO - LHR

1 stop17h 30mJetBlue

vie. 24/112:20LHR - SFO

1 stop19h 54mJetBlue

Deal found 16/1£646

mié. 22/108:00SFO - LHR

1 stop15h 20mIberia

mar. 11/211:45LHR - SFO

Nonstop11h 15mIberia

Deal found 15/1£489

mié. 22/116:40SFO - LHR

Nonstop10h 15mVirgin Atlantic

jue. 30/106:30LHR - SFO

1 stop13h 20mVirgin Atlantic

Deal found 16/1£501

mié. 22/109:00SFO - LHR

1 stop15h 45mDelta

mar. 11/206:30LHR - SFO

2 stops17h 17mDelta

Deal found 15/1£513

mié. 22/116:35SFO - LHR

1 stop16h 55mTAP AIR PORTUGAL

sáb. 25/106:00LHR - SFO

1 stop16h 55mTAP AIR PORTUGAL

Deal found 16/1£522

mié. 22/117:25SFO - LHR

Nonstop10h 35mUnited Airlines

vie. 31/108:55LHR - SFO

1 stop15h 30mUnited Airlines

Deal found 16/1£523

jue. 23/117:30SFO - LHR

2 stops17h 20mScandinavian Airlines

mié. 29/119:30LHR - SFO

1 stop28h 10mScandinavian Airlines

Deal found 16/1£510

One-way flights from San Francisco to Heathrow
Search for one-way flight options from San Francisco to Heathrow. Find affordable one-way fares based on user searches. Data last updated 17 enero 2025.

dom. 16/211:02SFO - LHR

2 stops41h 48mMultiple Airlines

Deal found 16/1£218

dom. 9/213:55SFO - LHR

1 stop14h 55mWestJet

Deal found 16/1£218

mar. 11/208:00SFO - LHR

1 stop13h 55mJetBlue

Deal found 16/1£278

mar. 22/416:20SFO - LHR

1 stop17h 25mTAP AIR PORTUGAL

Deal found 16/1£280

mar. 13/520:00SFO - LHR

1 stop16h 05mIberia

Deal found 16/1£299

dom. 16/217:30SFO - LHR

1 stop14h 30mScandinavian Airlines

Deal found 16/1£306

mié. 30/421:20SFO - LHR

Nonstop10h 20mVirgin Atlantic

Deal found 16/1£313

dom. 2/316:35SFO - LHR

2 stops30h 35mAir Canada

Deal found 15/1£316

mié. 12/217:30SFO - LHR

Nonstop10h 30mBritish Airways

Deal found 15/1£326

mié. 22/119:25SFO - LHR

1 stop14h 25mSWISS

Deal found 16/1£327

mar. 21/116:40SFO - LHR

Nonstop10h 15mDelta

Deal found 16/1£331

mar. 21/111:10SFO - LHR

2 stops16h 05mUnited Airlines

Deal found 16/1£335

Find flights from San Francisco to Heathrow within your budget

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

mié. 29/1

08:00-07:20

1 stop15h 20m

London Heathrow

mié. 5/2

11:45-15:00

Nonstop11h 15m

£489

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

dom. 9/2

16:40-10:55

Nonstop10h 15m

London Heathrow

mar. 25/2

06:30-11:50

1 stop13h 20m

£490

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

mié. 7/5

19:40-16:00

1 stop36h 20m

London Heathrow

dom. 18/5

18:40-16:30

1 stop29h 50m

£492

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

mié. 12/2

16:40-10:55

Nonstop10h 15m

London Heathrow

mié. 19/2

11:45-11:50

1 stop32h 05m

£502

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

mar. 11/2

09:00-07:55

1 stop14h 55m

London Heathrow

mar. 25/2

06:30-11:50

1 stop13h 20m

£505

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

dom. 9/2

17:30-12:00

Nonstop10h 30m

London Heathrow

mar. 25/2

11:45-15:00

Nonstop11h 15m

£506

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

jue. 24/4

16:20-22:05

1 stop21h 45m

London Heathrow

jue. 1/5

19:50-14:35

1 stop26h 45m

£508

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

lun. 24/2

07:00-08:30

2 stops17h 30m

London Heathrow

mar. 4/3

06:30-17:30

2 stops19h 00m

£520

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

mar. 25/2

10:50-10:10

1 stop15h 20m

London Heathrow

vie. 21/3

08:55-17:25

1 stop15h 30m

£523

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

vie. 14/3

21:40-15:15

Nonstop10h 35m

London Heathrow

mié. 19/3

15:20-19:45

Nonstop11h 25m

£527

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 28 results

Best time to book a flight from San Francisco to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Francisco with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from San Francisco to Heathrow

Get recent, data-driven insights about flights from San Francisco to Heathrow including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from San Francisco to London Heathrow Airport?

Booking 26 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Francisco to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from San Francisco to London Heathrow Airport (average of £112). Flying from San Francisco to London Heathrow Airport in August is currently the most expensive (average of £161). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to LHR?

When flying from San Francisco to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 21% versus a flight in the morning.

What is the cheapest day to fly from San Francisco to London Heathrow Airport?

Travellers seeking maximum savings on their San Francisco to London Heathrow Airport flight should consider departing on Sunday at midday when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco to London Heathrow Airport

The most flights from SFO to LHR are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 on average).

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

To help decide which airline to fly from San Francisco to London, see what other customers have to say about Virgin Atlantic, Finnair and Scandinavian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,511 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

8,511 reviews

Delta

8.0

Very Good

8,511 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,339 reviews

Delta

8.0

Very Good

8,511 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,285 reviews

Delta

8.0

Very Good

8,511 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS

7.5

Good

1,598 reviews

Delta

8.0

Very Good

8,511 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic

7.5

Good

664 reviews

Delta

8.0

Very Good

8,511 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly from for flights from San Francisco to London Heathrow?
For a flight from San Francisco to London Heathrow, you will be flying from San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city. San Francisco is the only San Francisco airport and it handles 30 outbound flights to London Heathrow per day. 10 airlines have flights to London Heathrow from San Francisco on a regular basis.
What are the cheapest airlines flying from San Francisco to London Heathrow Airport round-trip?
Currently priced at £489, Iberia will fly you from San Francisco to London Heathrow Airport and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Atlantic and Scandinavian Airlines - these airlines can fly you to your destination from £490 and £492, respectively. Users have found that Iberia is 25% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from San Francisco to London Heathrow Airport one-way?
To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £218. JetBlue flights start at £278 while deals on TAP AIR PORTUGAL start at £280 one-way.
What are the most reliable airlines from San Francisco to London Heathrow Airport?
Consider Air Canada (85%), Austrian Airlines (85%) or SWISS (85%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to London Heathrow Airport.
What are the cheapest flights from San Francisco to London Heathrow Airport?
On average you can expect to pay £2,540 for a flight from San Francisco to London Heathrow Airport. The cheapest flight overall is £322 while the most popular route, (San Francisco - London Heathrow) is currently priced at £411.
Can I find deals for flights from San Francisco to Heathrow that include hotel bookings?
Yes. In addition to deals on San Francisco to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from San Francisco to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Heathrow.
Can I find deals for business class flights from San Francisco to Heathrow?
Yes. Cheapflights offers flight deals from San Francisco to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from San Francisco to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from San Francisco to London Heathrow Airport (average of £112). Flying from San Francisco to London Heathrow Airport in August is currently the most expensive (average of £161). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Deal

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Croydon

Luton

Slough

Ilford

Hayes

Eastbourne

Northampton

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Maidstone

Winchester

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Ipswich

Watford

Crawley

Southall

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from San Francisco to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Finnair	Cheapest£401	Average£727	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
TAP AIR PORTUGAL	Cheapest£447	Average£459	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Virgin Atlantic	Cheapest£464	Average£625	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Iberia	Cheapest£470	Average£617	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
British Airways	Cheapest£473	Average£619	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Air Canada	Cheapest£477	Average£733	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
KLM	Cheapest£486	Average£604	FlexibilityNo cancel fee	On-time75%	Search KLM flights
United Airlines	Cheapest£499	Average£791	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Lufthansa	Cheapest£505	Average£768	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Delta	Cheapest£561	Average£665	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

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How does Cheapflights help users find flights from San Francisco to Heathrow?

Cheapflights helps you search for flights from San Francisco to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from San Francisco to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from San Francisco to Heathrow with no change fees?

Yes! Cheapflights helps users easily find flights from San Francisco to Heathrow with no change fees.

Can Cheapflights notify me if prices for flights from San Francisco to Heathrow become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from San Francisco today and book when prices fit your budget.

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Cheap flights from San Francisco to London Heathrow Airport from £218

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/2. Fares are subject to change and may not be available on all flights or dates of travel.

The best prices from San Francisco to London Heathrow are usually found in October or September, booked 26 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from San Francisco to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

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Find flight deals from San Francisco to Heathrow

Cheapest flights from San Francisco to HeathrowExplore the most affordable flight options available from San Francisco to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 enero 2025.

Explore the most affordable flight options available from San Francisco to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 enero 2025.

Find flights from San Francisco to Heathrow within your budget

Best time to book a flight from San Francisco to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Francisco with our price prediction graph.

Travel insights for flights from San Francisco to Heathrow

Get recent, data-driven insights about flights from San Francisco to Heathrow including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from San Francisco to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from San Francisco to Heathrow. Price data was last updated on 10 January 2025.

What is the cheapest month to book a flight from San Francisco to London Heathrow Airport?

What is the cheapest time of day to fly from SFO to LHR?

Find hourly flight availability from San Francisco to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 enero 2025.

What is the cheapest day to fly from San Francisco to London Heathrow Airport?

Use this chart to determine the cheapest time to fly return from San Francisco to Heathrow. Price data was last updated on 16 December 2024.

Weekly flight availability from San Francisco to London Heathrow Airport

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

To help decide which airline to fly from San Francisco to London, see what other customers have to say about Virgin Atlantic, Finnair and Scandinavian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from San Francisco to London Heathrow?

What are the cheapest airlines flying from San Francisco to London Heathrow Airport round-trip?

What are the cheapest airlines to fly from San Francisco to London Heathrow Airport one-way?

What are the most reliable airlines from San Francisco to London Heathrow Airport?

What are the cheapest flights from San Francisco to London Heathrow Airport?

Can I find deals for flights from San Francisco to Heathrow that include hotel bookings?

How can I find direct flights from San Francisco to Heathrow?

Can I find deals for business class flights from San Francisco to Heathrow?

What is the cheapest month to book a flight from San Francisco to London Heathrow Airport?

Travelling to a place near San Francisco?

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Alternative routes for San Francisco to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from San Francisco to Heathrow

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Cheapest flights from San Francisco to Heathrow
Explore the most affordable flight options available from San Francisco to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 enero 2025.