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

Our cheapest airline available from San Francisco to London is TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as £487 on this airline. Additional options worth looking into are Scandinavian Airlines and Virgin Atlantic, starting at £487 and £491 round-trip. TAP AIR PORTUGAL is currently priced 22% below the average price you’ll pay for this route.

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

For one-way options, check prices for WestJet. According to our data, you can fly for as low as £241. Users have also found prices from £248 and £259 on SWISS and TAP AIR PORTUGAL, respectively.

What are the most popular routes from San Francisco to London?

While some choose either San Francisco - London Gatwick or San Francisco - London City, San Francisco - London Heathrow is the most popular route from San Francisco to London.

What are the cheapest flights from San Francisco to London?

Looking at all options, your cheapest flight can be booked for £269. While the most popular route (San Francisco - London Heathrow) can be booked for £364 on average our data indicates £2,237 when flying from San Francisco to London.

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

Before booking your flight to London from San Francisco, check out the most reliable airlines to get you to your destination on time: Iberia (82%), KLM (81%), American Airlines( 80%).

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

Before booking your flight from San Francisco to London check out the most popular airlines for this route: Finnair, British Airways or Delta.

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

Wednesday flights are generally found to be more expensive for flights from San Francisco to London. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.

How far in advance should I book a flight from San Francisco to London?

Find a great deal and save up to 11% by booking at least 39 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Francisco to London within the next two weeks, with the cheapest ticket starting at £597.

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

Flights from San Francisco to London lean towards being more expensive in June. Prices are generally better when you fly from San Francisco to London in October, with the cheapest ticket starting at £405.

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

Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to London from San Francisco. Booking flights from San Francisco (SFO) to London should be relatively easy as there are 33 daily outbound flights to London from 9 different airlines.

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

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

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

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

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

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

£231+ Flights from San Francisco to London

The best prices from San Francisco to London are usually found in October or September, booked 38 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from San Francisco to London

Round-trip from	£487
One-way from	£231
Popular in	June
Cheapest in	October
Average price	£730

TAP AIR PORTUGAL
29/1-20/2
2 total stops
63h 35m total
San Francisco to London

Search Deals

30/4
2 total stops
17h 49m total
San Francisco to London

Search Deals

High demand for flights, 21% potential price rise

Search Deals

Best time to find cheap flights, 5% potential price drop

Search Deals

Average for round-trip flights in December 2024

Search Deals

Find flight deals from San Francisco to London

Cheapest flights from San Francisco to London
Explore the most affordable flight options available from San Francisco to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Sun 29/1216:40SFO - LHR

Nonstop10h 15mVirgin Atlantic

Tue 14/106:30LHR - SFO

1 stop13h 20mVirgin Atlantic

Deal found 18/12£488

Sun 29/1212:50SFO - LHR

Nonstop10h 35mMultiple Airlines

Tue 14/120:05LHR - SFO

1 stop28h 20mMultiple Airlines

Deal found 18/12£498

Sun 29/1212:50SFO - LHR

Nonstop10h 35mUnited Airlines

Wed 15/108:55LHR - SFO

1 stop15h 30mUnited Airlines

Deal found 18/12£499

Sun 29/1212:50SFO - LHR

Nonstop10h 35mAustrian Airlines

Tue 14/113:45LHR - SFO

Nonstop11h 10mAustrian Airlines

Deal found 18/12£500

Mon 30/1219:25SFO - LGW

1 stop14h 25mSWISS

Mon 13/118:45LGW - SFO

1 stop29h 40mSWISS

Deal found 18/12£502

Mon 30/1216:40SFO - LHR

Nonstop10h 15mDelta

Tue 14/106:30LHR - SFO

1 stop13h 20mDelta

Deal found 18/12£502

Sat 28/1217:30SFO - LHR

1 stop14h 30mScandinavian Airlines

Wed 15/119:30LHR - SFO

1 stop28h 10mScandinavian Airlines

Deal found 18/12£516

Mon 30/1219:25SFO - LHR

1 stop18h 15mSWISS

Mon 13/118:40LHR - SFO

1 stop29h 45mSWISS

Deal found 18/12£528

Mon 30/1219:25SFO - LCY

1 stop15h 15mSWISS

Mon 13/119:10LCY - SFO

1 stop29h 15mSWISS

Deal found 17/12£537

Sun 29/1213:50SFO - LCY

1 stop20h 35mVirgin Atlantic

Tue 14/118:55LCY - SFO

1 stop24h 55mVirgin Atlantic

Deal found 17/12£544

Mon 30/1208:30SFO - LHR

2 stops28h 05mAir Canada

Sun 12/113:00LHR - SFO

1 stop15h 46mAir Canada

Deal found 18/12£556

Mon 30/1220:05SFO - LGW

1 stop30h 30mMultiple Airlines

Tue 14/112:00LGW - SFO

1 stop27h 14mMultiple Airlines

Deal found 18/12£563

Best flights from San Francisco to London
Discover carefully curated flight deals from San Francisco to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 December 2024.

Wed 29/116:35SFO - LGW

1 stop33h 15mTAP AIR PORTUGAL

Thu 20/215:55LGW - SFO

1 stop30h 20mTAP AIR PORTUGAL

Deal found 17/12£487

Thu 30/117:30SFO - LHR

2 stops19h 50mScandinavian Airlines

Sun 16/219:30LHR - SFO

1 stop28h 10mScandinavian Airlines

Deal found 17/12£487

Wed 1/120:35SFO - LHR

1 stop15h 00mMultiple Airlines

Wed 12/208:55LHR - SFO

1 stop15h 30mMultiple Airlines

Deal found 18/12£490

Mon 30/1216:40SFO - LHR

Nonstop10h 15mVirgin Atlantic

Wed 15/106:30LHR - SFO

1 stop13h 20mVirgin Atlantic

Deal found 18/12£491

Tue 4/315:05SFO - LCY

1 stop17h 05mITA Airways

Wed 26/316:40LCY - SFO

1 stop28h 25mITA Airways

Deal found 17/12£497

Tue 11/217:30SFO - LHR

Nonstop10h 30mIberia

Wed 19/215:35LHR - SFO

1 stop16h 47mIberia

Deal found 18/12£498

Wed 8/120:40SFO - LHR

Nonstop10h 35mAmerican Airlines

Wed 15/108:50LHR - SFO

1 stop14h 40mAmerican Airlines

Deal found 18/12£498

Sun 29/1212:50SFO - LHR

Nonstop10h 35mUnited Airlines

Wed 15/108:55LHR - SFO

1 stop15h 30mUnited Airlines

Deal found 18/12£499

Mon 30/1219:25SFO - LGW

1 stop14h 25mSWISS

Mon 13/118:45LGW - SFO

1 stop29h 40mSWISS

Deal found 18/12£502

Tue 1/416:35SFO - LHR

Nonstop10h 25mBritish Airways

Thu 1/510:45LHR - SFO

Nonstop11h 05mBritish Airways

Deal found 18/12£502

Tue 7/113:30SFO - LHR

1 stop13h 40mDelta

Fri 17/106:30LHR - SFO

1 stop13h 20mDelta

Deal found 18/12£514

Mon 21/419:20SFO - LHR

Nonstop10h 25mFinnair

Thu 8/514:15LHR - SFO

Nonstop11h 10mFinnair

Deal found 18/12£515

Direct flights from San Francisco to London
Explore direct flight options from San Francisco to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 December 2024.

Mon 24/220:40SFO - LHR

Nonstop10h 35mBritish Airways

Tue 4/315:20LHR - SFO

Nonstop11h 25mBritish Airways

Deal found 18/12£495

Sun 29/1216:40SFO - LHR

Nonstop10h 15mVirgin Atlantic

Tue 14/111:40LHR - SFO

Nonstop11h 05mVirgin Atlantic

Deal found 18/12£501

Tue 21/117:30SFO - LHR

Nonstop10h 30mIberia

Wed 29/111:45LHR - SFO

Nonstop11h 15mIberia

Deal found 18/12£506

Sun 29/1212:50SFO - LHR

Nonstop10h 35mUnited Airlines

Tue 14/113:45LHR - SFO

Nonstop11h 10mUnited Airlines

Deal found 18/12£513

Tue 15/419:20SFO - LHR

Nonstop10h 25mFinnair

Tue 29/410:45LHR - SFO

Nonstop11h 05mFinnair

Deal found 18/12£515

Thu 9/116:40SFO - LHR

Nonstop10h 15mDelta

Fri 17/111:40LHR - SFO

Nonstop11h 05mDelta

Deal found 17/12£544

Mon 13/116:40SFO - LHR

Nonstop10h 15mAir France

Tue 28/111:40LHR - SFO

Nonstop11h 05mAir France

Deal found 18/12£561

Wed 29/117:30SFO - LHR

Nonstop10h 30mAlaska Airlines

Wed 12/211:45LHR - SFO

Nonstop11h 15mAlaska Airlines

Deal found 18/12£679

Tue 31/1212:50SFO - LHR

Nonstop10h 35mAustrian Airlines

Fri 10/113:45LHR - SFO

Nonstop11h 10mAustrian Airlines

Deal found 18/12£696

Thu 15/519:20SFO - LHR

Nonstop10h 25mMultiple Airlines

Thu 22/514:15LHR - SFO

Nonstop11h 10mMultiple Airlines

Deal found 18/12£730

Last-minute flights from San Francisco to London
Discover last-minute flight deals from San Francisco to London. Data last updated 19 December 2024 and is based on user searches.

Sat 28/1217:30SFO - LHR

1 stop14h 30mScandinavian Airlines

Wed 15/119:30LHR - SFO

1 stop28h 10mScandinavian Airlines

Deal found 18/12£516

Sat 28/1220:40SFO - LHR

Nonstop10h 35mBritish Airways

Wed 15/111:45LHR - SFO

Nonstop11h 15mBritish Airways

Deal found 18/12£636

Sun 29/1216:40SFO - LHR

Nonstop10h 15mVirgin Atlantic

Tue 14/106:30LHR - SFO

1 stop13h 20mVirgin Atlantic

Deal found 18/12£488

Sun 29/1212:50SFO - LHR

Nonstop10h 35mMultiple Airlines

Tue 14/120:05LHR - SFO

1 stop28h 20mMultiple Airlines

Deal found 18/12£498

Sun 29/1212:50SFO - LHR

Nonstop10h 35mUnited Airlines

Wed 15/108:55LHR - SFO

1 stop15h 30mUnited Airlines

Deal found 18/12£499

Sun 29/1212:50SFO - LHR

Nonstop10h 35mAustrian Airlines

Tue 14/113:45LHR - SFO

Nonstop11h 10mAustrian Airlines

Deal found 18/12£500

Sun 29/1216:40SFO - LHR

Nonstop10h 15mDelta

Tue 14/106:30LHR - SFO

1 stop13h 20mDelta

Deal found 18/12£502

Sun 29/1219:25SFO - LHR

2 stops18h 00mSWISS

Tue 14/120:05LHR - SFO

1 stop28h 20mSWISS

Deal found 18/12£536

Sun 29/1213:50SFO - LCY

1 stop20h 35mVirgin Atlantic

Tue 14/118:55LCY - SFO

1 stop24h 55mVirgin Atlantic

Deal found 18/12£544

Sun 29/1219:25SFO - LGW

1 stop14h 25mSWISS

Tue 14/118:45LGW - SFO

1 stop29h 40mSWISS

Deal found 18/12£580

Sun 29/1217:30SFO - LHR

Nonstop10h 30mIberia

Tue 14/117:05LHR - SFO

1 stop35h 45mIberia

Deal found 18/12£583

Sun 29/1213:50SFO - LCY

1 stop19h 35mKLM

Tue 14/107:45LCY - SFO

1 stop36h 05mKLM

Deal found 18/12£585

One-way flights from San Francisco to London
Search for one-way flight options from San Francisco to London. Find affordable one-way fares based on user searches. Data last updated 19 December 2024.

Wed 30/410:15SFO - LHR

2 stops17h 49mMultiple Airlines

Deal found 18/12£231

Thu 16/114:54SFO - LGW

2 stops31h 06mMultiple Airlines

Deal found 18/12£232

Wed 22/106:55SFO - STN

3 stops25h 40mMultiple Airlines

Deal found 17/12£233

Sun 26/114:54SFO - LTN

3 stops47h 06mMultiple Airlines

Deal found 17/12£239

Sun 12/113:55SFO - LHR

1 stop14h 55mWestJet

Deal found 18/12£241

Mon 13/119:25SFO - LCY

1 stop15h 15mSWISS

Deal found 18/12£248

Mon 17/317:40SFO - LHR

1 stop16h 50mTAP AIR PORTUGAL

Deal found 18/12£259

Fri 17/121:10SFO - SEN

3 stops54h 10mMultiple Airlines

Deal found 18/12£265

Sat 11/108:20SFO - LHR

1 stop13h 35mJetBlue

Deal found 18/12£267

Mon 24/317:40SFO - LGW

1 stop15h 05mTAP AIR PORTUGAL

Deal found 18/12£275

Mon 13/115:05SFO - LCY

3 stops37h 45mMultiple Airlines

Deal found 18/12£282

Tue 31/1217:30SFO - LHR

Nonstop10h 30mBritish Airways

Deal found 18/12£289

Find flights from San Francisco to London within your budget

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Wed 29/1

16:35-09:50

1 stop33h 15m

London Gatwick

Thu 20/2

15:55-14:15

1 stop30h 20m

£487

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 30/1

17:30-21:20

2 stops19h 50m

London Heathrow

Sun 16/2

19:30-15:40

1 stop28h 10m

£487

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 1/1

20:35-19:35

1 stop15h 00m

London Heathrow

Wed 12/2

08:55-16:25

1 stop15h 30m

£490

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 30/12

16:40-10:55

Nonstop10h 15m

London Heathrow

Wed 15/1

06:30-11:50

1 stop13h 20m

£491

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Sat 15/3

20:55-19:10

1 stop15h 15m

London Gatwick

Sun 23/3

07:55-21:10

1 stop20h 15m

£491

San FranciscoLondon

SFO - LCY

SFOLCY

San Francisco

Tue 4/3

15:05-16:10

1 stop17h 05m

London City

Wed 26/3

16:40-14:05

1 stop28h 25m

£497

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Thu 16/1

19:25-23:00

2 stops19h 35m

London Stansted

Thu 23/1

08:30-18:45

2 stops18h 15m

£497

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Sat 18/1

16:40-23:00

2 stops22h 20m

London Luton

Fri 24/1

16:30-14:55

2 stops30h 25m

£497

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 11/2

17:30-12:00

Nonstop10h 30m

London Heathrow

Wed 19/2

15:35-00:22

1 stop16h 47m

£498

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 8/1

20:40-15:15

Nonstop10h 35m

London Heathrow

Wed 15/1

08:50-15:30

1 stop14h 40m

£498

Flights are sorted by cheapest return flights first.

Deals found on 18/12

Showing 1-10 of 58 results

...

Best time to book a flight from San Francisco to London

Have a flexible travel schedule? Discover the best time to fly to London 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 London

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

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

The price you pay for your flight from San Francisco to London may vary depending on when you book. For the best chance of a lower fare, look to book 38 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to London (average of £112). Flying from San Francisco to London in July is currently the most expensive (average of £160). 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 LON?

When flying from San Francisco to London, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 14% versus a flight in the morning.

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

Travellers seeking maximum savings on their San Francisco to London flight should consider departing on Wednesday at midday when fares are most often at their lowest. Tuesday 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

The most flights from SFO to LON are scheduled on a Monday (33 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (33 on average).

Rainfall in London by month

In terms of precipitation, rainfall in London 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 when rainfall is around 40.0 mm.

Temperature in London by month

If weather is an important factor for your trip to London, 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 London

Read reviews from past customers who have flown Scandinavian Airlines, Iberia and British Airways from San Francisco to London. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,604 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

8,604 reviews

Delta

8.0

Very Good

8,604 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

1,349 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

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

Finnair

7.7

Good

1,285 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

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

SWISS

7.6

Good

1,605 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

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

Austrian Airlines

7.6

Good

788 reviews

Delta

8.0

Very Good

8,604 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?
Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to London from San Francisco. Booking flights from San Francisco (SFO) to London should be relatively easy as there are 33 daily outbound flights to London from 9 different airlines.
What are the cheapest airlines flying from San Francisco to London round-trip?
Our cheapest airline available from San Francisco to London is TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as £487 on this airline. Additional options worth looking into are Scandinavian Airlines and Virgin Atlantic, starting at £487 and £491 round-trip. TAP AIR PORTUGAL is currently priced 22% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from San Francisco to London one-way?
For one-way options, check prices for WestJet. According to our data, you can fly for as low as £241. Users have also found prices from £248 and £259 on SWISS and TAP AIR PORTUGAL, respectively.
What are the most popular routes from San Francisco to London?
While some choose either San Francisco - London Gatwick or San Francisco - London City, San Francisco - London Heathrow is the most popular route from San Francisco to London.
What are the most reliable airlines from San Francisco to London?
Before booking your flight to London from San Francisco, check out the most reliable airlines to get you to your destination on time: Iberia (82%), KLM (81%), American Airlines( 80%).
What are the cheapest flights from San Francisco to London?
Looking at all options, your cheapest flight can be booked for £269. While the most popular route (San Francisco - London Heathrow) can be booked for £364 on average our data indicates £2,237 when flying from San Francisco to London.
Can I find deals for flights from San Francisco to London that include hotel bookings?
Yes. In addition to deals on San Francisco to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from San Francisco to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to London.
Can I find deals for business class flights from San Francisco to London?
Yes. Cheapflights offers flight deals from San Francisco to London 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?
Currently, January is the cheapest month in which you can book a flight from San Francisco to London (average of £112). Flying from San Francisco to London in July is currently the most expensive (average of £160). 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

Browse thousands of different options on Cheapflights for your next trip

Top 9 airlines flying from San Francisco to London

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest£430	Average£443	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Virgin Atlantic	Cheapest£446	Average£587	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Iberia	Cheapest£453	Average£619	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
British Airways	Cheapest£456	Average£611	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£468	Average£578	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Finnair	Cheapest£470	Average£828	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
United Airlines	Cheapest£481	Average£759	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Lufthansa	Cheapest£487	Average£740	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Delta	Cheapest£541	Average£734	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

Fly with Cheapflights

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

When you search for this flight from San Francisco to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from San Francisco.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco to London flexibly with Cheapflights today.

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Cheap flights from San Francisco to London from £231

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 30/4. 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 are usually found in October or September, booked 38 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from San Francisco to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Francisco to London

Cheapest flights from San Francisco to LondonExplore the most affordable flight options available from San Francisco to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Explore the most affordable flight options available from San Francisco to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Find flights from San Francisco to London within your budget

Best time to book a flight from San Francisco to London

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

Travel insights for flights from San Francisco to London

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

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

Use this chart to determine the optimal time to book a return flight from San Francisco to London. Price data was last updated on 13 December 2024.

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

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

Find hourly flight availability from San Francisco to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 December 2024.

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

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

Weekly flight availability from San Francisco to London

Rainfall in London by month

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

Temperature in London by month

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

Reviews of airlines servicing London

Read reviews from past customers who have flown Scandinavian Airlines, Iberia and British Airways from San Francisco to London. 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 London. 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?

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

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

What are the most popular routes from San Francisco to London?

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

What are the cheapest flights from San Francisco to London?

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

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

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Alternative routes for San Francisco to London

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

Top 9 airlines flying from San Francisco to London

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Cheapest flights from San Francisco to London
Explore the most affordable flight options available from San Francisco to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.