Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from San Diego to London Heathrow Airport from £182

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 26/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LHR
21 1월 — 28 1월1
1 adult

The best prices from San Diego to London Heathrow are usually found in January or October, booked 86 days in advance, depart on a Saturday or Friday and return on a Friday

Cheap flight deals from San Diego to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 1월 2025.

Round-trip from

£505

One-way from

£182

Popular in

June

Cheapest in

January

Average price

£622
JetBlue
  • JetBlue
  • 17/3-25/3
  • 2 total stops
  • 33h 11m total
  • San Diego to London
26/2
  • 26/2
  • 2 total stops
  • 37h 50m total
  • San Diego to London
High demand for flights, 20% potential price rise
Best time to find cheap flights, 3% potential price drop
Average for round-trip flights in January 2025

Find flight deals from San Diego to Heathrow

Cheapest flights from San Diego to Heathrow
Explore the most affordable flight options available from San Diego to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 1월 2025.

월 17/321:45SAN - LHR
1 stop16h 00mJetBlue
화 25/308:25LHR - SAN
1 stop17h 11mJetBlue
Deal found 15/1£505
화 25/218:10SAN - LHR
Nonstop10h 25mFinnair
목 13/309:25LHR - SAN
1 stop18h 42mFinnair
Deal found 15/1£511
수 5/318:10SAN - LHR
Nonstop10h 25mIberia
수 12/312:50LHR - SAN
Nonstop11h 15mIberia
Deal found 15/1£515
화 8/409:24SAN - LHR
1 stop13h 16mBritish Airways
목 24/414:45LHR - SAN
Nonstop11h 05mBritish Airways
Deal found 15/1£520
월 27/112:55SAN - LHR
2 stops58h 15mMultiple Airlines
수 12/207:40LHR - SAN
1 stop15h 45mMultiple Airlines
Deal found 15/1£521
수 22/112:35SAN - LHR
1 stop16h 15mWestJet
화 28/114:50LHR - SAN
1 stop28h 55mWestJet
Deal found 14/1£524
월 3/311:45SAN - LHR
1 stop14h 25mAir Canada
수 26/315:00LHR - SAN
2 stops28h 03mAir Canada
Deal found 15/1£535
월 27/118:10SAN - LHR
Nonstop10h 25mAmerican Airlines
수 5/212:50LHR - SAN
Nonstop11h 15mAmerican Airlines
Deal found 15/1£536
월 27/106:15SAN - LHR
2 stops19h 25mUnited Airlines
수 12/208:45LHR - SAN
1 stop14h 40mUnited Airlines
Deal found 15/1£542
화 11/306:20SAN - LHR
2 stops17h 45mDelta
화 25/311:45LHR - SAN
2 stops18h 03mDelta
Deal found 15/1£557
화 11/318:05SAN - LHR
3 stops20h 30mScandinavian Airlines
화 25/306:40LHR - SAN
2 stops24h 05mScandinavian Airlines
Deal found 15/1£562
금 14/206:25SAN - LHR
1 stop16h 40mAir France
금 21/209:10LHR - SAN
1 stop19h 56mAir France
Deal found 15/1£605

Find flights from San Diego to Heathrow within your budget

Customise your flight search to find flights from San Diego to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 16 1월 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San DiegoLondon

SAN - LHR

SANLHR

San Diego

월 17/3

21:45-20:45

1 stop16h 00m

London Heathrow

화 25/3

08:25-18:36

1 stop17h 11m

£505

San DiegoLondon

SAN - LHR

SANLHR

San Diego

화 25/2

18:10-12:35

Nonstop10h 25m

London Heathrow

목 13/3

09:25-21:07

1 stop18h 42m

£511

San DiegoLondon

SAN - LHR

SANLHR

San Diego

수 5/3

18:10-12:35

Nonstop10h 25m

London Heathrow

수 12/3

12:50-17:05

Nonstop11h 15m

£515

San DiegoLondon

SAN - LHR

SANLHR

San Diego

월 31/3

19:50-14:20

Nonstop10h 30m

London Heathrow

금 11/4

11:30-14:50

Nonstop11h 20m

£517

San DiegoLondon

SAN - LHR

SANLHR

San Diego

월 27/1

12:55-07:10

2 stops58h 15m

London Heathrow

수 12/2

07:40-15:25

1 stop15h 45m

£521

San DiegoLondon

SAN - LHR

SANLHR

San Diego

월 3/3

11:45-10:10

1 stop14h 25m

London Heathrow

수 26/3

15:00-12:03

2 stops28h 03m

£535

San DiegoLondon

SAN - LHR

SANLHR

San Diego

월 27/1

18:10-12:35

Nonstop10h 25m

London Heathrow

수 5/2

12:50-16:05

Nonstop11h 15m

£536

San DiegoLondon

SAN - LHR

SANLHR

San Diego

월 27/1

12:13-11:05

1 stop14h 52m

London Heathrow

수 12/2

08:45-15:25

1 stop14h 40m

£542

San DiegoLondon

SAN - LHR

SANLHR

San Diego

화 11/3

07:20-06:50

2 stops16h 30m

London Heathrow

화 25/3

11:45-22:48

2 stops18h 03m

£557

San DiegoLondon

SAN - LHR

SANLHR

San Diego

화 11/3

10:55-21:35

3 stops27h 40m

London Heathrow

화 25/3

06:40-23:45

2 stops24h 05m

£562

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 28 results
1
2
3

Best time to book a flight from San Diego to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Diego 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 Diego to Heathrow

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

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

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

The best time to book flights from San Diego to London Heathrow Airport is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from San Diego to London Heathrow Airport (average of £112). Flying from San Diego 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 SAN to LHR?

Find hourly flight availability from San Diego 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 16 1월 2025.

It’s optimal to fly from San Diego to London Heathrow Airport in the morning. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the evening.

Weekly flight availability from San Diego to London Heathrow Airport

Explore weekly flight availability from San Diego to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 1월 2025.

The most flights from SAN to LHR are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Heathrow by month

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

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

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 16 1월 2025.
Read reviews from past customers who have flown JetBlue, British Airways and WestJet from San Diego to London. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,511 reviews

Entertainment

7.9

Food

7.3

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

8.0
Very Good
8,511 reviews
8.0
Very Good
8,511 reviews

Entertainment

7.9

Food

7.3

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

7.8
Good
1,339 reviews
8.0
Very Good
8,511 reviews

Entertainment

7.9

Food

7.3

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

7.6
Good
1,285 reviews
8.0
Very Good
8,511 reviews

Entertainment

7.9

Food

7.3

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

7.4
Good
8,964 reviews
8.0
Very Good
8,511 reviews

Entertainment

7.9

Food

7.3

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

7.4
Good
3,198 reviews
8.0
Very Good
8,511 reviews

Entertainment

7.9

Food

7.3

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.2

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

Find useful and relevant information for your journey from San Diego 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 Diego to London Heathrow?

    San Diego (SAN) is the airport you will fly out of if you book a flight from San Diego to London Heathrow. You should not have trouble finding flights to London Heathrow from San Diego; the airport handles an average of 6 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 1 airline has flights from the San Diego airport to London Heathrow. It is only a 2.6 mi journey to San Diego (SAN) from San Diego’s city center.

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

    Our cheapest airline available from San Diego to London Heathrow Airport is JetBlue. Our recent data shows that you can find tickets from as low as £505 on this airline. Additional options worth looking into are Finnair and Iberia, starting at £511 and £515 round-trip. These flights start at 33% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at £267. WestJet flights start at £271 while deals on Scandinavian Airlines start at £300 one-way.

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

    Consider American Airlines (66%), Alaska Airlines (66%) or Aer Lingus (66%) when booking your flight. These represent the most reliable airlines when flying from San Diego to London Heathrow Airport.

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

    While on average a flight from San Diego to London Heathrow Airport is generally £826, our data shows the cheapest flight currently is £328. When looking at the most popular route, (San Diego - London Heathrow), you can expect to pay £448 for that flight.

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

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

  • How can I find direct flights from San Diego to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from San Diego 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 Diego to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from San Diego to London Heathrow Airport (average of £112). Flying from San Diego 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

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Deal
Hounslow
Gatwick
Milton Keynes
Croydon
Luton
Slough
Ilford
Hayes
Eastbourne
Northampton
Swindon
Maidstone
Winchester
Southend-on-Sea
Wembley
Ipswich
Watford
Crawley
Southall

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from San Diego to Heathrow

Discover the top airline that operate flights from San Diego to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 16 1월 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£603Average£767FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from San Diego today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from San Diego 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 Diego to Heathrow with no change fees?

Yes, we can. To see specific flights from San Diego to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from San Diego 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 Diego today and book when prices fit your budget.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.