Cheap flights from San Diego to London Heathrow Airport from £183
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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LHR
20 Nov — 27 Nov1
Return
1 adult
Economy
Return
1 adult, Economy
Cheapflights Tip: The best prices from San Diego to London Heathrow are usually found in February or October, booked 34 days in advance, depart on a Monday or Saturday and return on a Monday
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 21 October 2025.
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 21 October 2025.
Thu 4/1216:04SAN - LHR
2 stops18h 26mScandinavian Airlines
Tue 9/1206:40LHR - SAN
2 stops24h 14mScandinavian Airlines
Deal found 20/10£433
Thu 4/1216:04SAN - LHR
2 stops17h 36mScandinavian Airlines
Thu 11/1206:40LHR - SAN
2 stops22h 25mScandinavian Airlines
Deal found 20/10£434
Mon 27/1012:28SAN - LHR
1 stop13h 07mIberia
Mon 10/1112:35LHR - SAN
1 stop16h 13mIberia
Deal found 19/10£436
Sun 9/1111:35SAN - LHR
1 stop13h 10mVirgin Atlantic
Tue 25/1113:00LHR - SAN
1 stop17h 20mVirgin Atlantic
Deal found 20/10£437
Tue 18/1109:30SAN - LHR
1 stop13h 05mBritish Airways
Tue 25/1112:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 19/10£447
Tue 2/1209:59SAN - LHR
2 stops27h 41mScandinavian Airlines
Tue 9/1206:40LHR - SAN
2 stops24h 14mScandinavian Airlines
Deal found 20/10£449
Mon 17/1116:07SAN - LHR
2 stops21h 33mScandinavian Airlines
Thu 20/1107:05LHR - SAN
3 stops23h 50mScandinavian Airlines
Deal found 19/10£451
Tue 4/1118:00SAN - LHR
Nonstop10h 35mBritish Airways
Wed 26/1108:20LHR - SAN
1 stop15h 34mBritish Airways
Deal found 19/10£452
Tue 2/1217:35SAN - LHR
1 stop15h 30mLufthansa
Thu 25/1206:35LHR - SAN
1 stop17h 10mLufthansa
Deal found 19/10£452
Best flights from San Diego to Heathrow
Discover carefully curated flight deals from San Diego to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 October 2025.
Thu 26/207:00SAN - LHR
2 stops27h 30mScandinavian Airlines
Sat 7/306:40LHR - SAN
2 stops24h 15mScandinavian Airlines
Deal found 20/10£443
Sun 30/1118:00SAN - LHR
Nonstop10h 35mBritish Airways
Thu 11/1212:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 20/10£466
Tue 10/211:50SAN - LHR
1 stop12h 55mKLM
Tue 24/206:30LHR - SAN
1 stop13h 35mKLM
Deal found 20/10£470
Wed 12/1106:15SAN - LHR
1 stop20h 15mDelta
Fri 6/211:30LHR - SAN
2 stops19h 25mDelta
Deal found 20/10£471
Thu 4/1216:04SAN - LHR
3 stops21h 16mScandinavian Airlines
Thu 11/1206:40LHR - SAN
2 stops25h 18mScandinavian Airlines
Deal found 20/10£445
Thu 12/210:00SAN - LHR
2 stops23h 40mScandinavian Airlines
Thu 26/207:05LHR - SAN
3 stops23h 50mScandinavian Airlines
Deal found 19/10£452
Thu 4/1216:04SAN - LHR
3 stops21h 16mScandinavian Airlines
Tue 9/1206:40LHR - SAN
2 stops22h 25mScandinavian Airlines
Deal found 20/10£452
Tue 17/210:00SAN - LHR
2 stops27h 40mScandinavian Airlines
Tue 24/207:05LHR - SAN
3 stops23h 50mScandinavian Airlines
Deal found 19/10£452
Thu 15/110:00SAN - LHR
3 stops22h 00mScandinavian Airlines
Sat 24/106:40LHR - SAN
3 stops24h 15mScandinavian Airlines
Deal found 19/10£452
Sat 14/210:00SAN - LHR
2 stops27h 40mScandinavian Airlines
Sat 28/206:40LHR - SAN
3 stops24h 15mScandinavian Airlines
Deal found 20/10£452
Tue 10/210:00SAN - LHR
3 stops27h 35mScandinavian Airlines
Tue 24/207:05LHR - SAN
3 stops23h 50mScandinavian Airlines
Deal found 19/10£455
Direct flights from San Diego to Heathrow
Explore direct flight options from San Diego to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 October 2025.
Wed 7/118:00SAN - LHR
Nonstop10h 35mBritish Airways
Wed 14/112:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 19/10£453
Sun 9/1118:00SAN - LHR
Nonstop10h 35mBritish Airways
Tue 25/1112:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 20/10£455
Wed 12/1118:00SAN - LHR
Nonstop10h 35mBritish Airways
Fri 6/212:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 20/10£461
Sun 9/1118:00SAN - LHR
Nonstop10h 35mBritish Airways
Wed 19/1112:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 19/10£466
Wed 21/118:00SAN - LHR
Nonstop10h 35mIberia
Tue 27/112:50LHR - SAN
Nonstop11h 20mIberia
Deal found 19/10£469
Tue 17/218:00SAN - LHR
Nonstop10h 35mBritish Airways
Wed 25/212:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 18/10£471
Wed 7/118:00SAN - LHR
Nonstop10h 35mFinnair
Wed 14/112:50LHR - SAN
Nonstop11h 20mFinnair
Deal found 19/10£472
Tue 10/218:00SAN - LHR
Nonstop10h 35mBritish Airways
Tue 24/212:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 20/10£473
Wed 4/318:00SAN - LHR
Nonstop10h 35mBritish Airways
Wed 11/312:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 19/10£485
Tue 24/218:00SAN - LHR
Nonstop10h 35mBritish Airways
Sat 7/312:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 18/10£489
Last-minute flights from San Diego to Heathrow
Discover last-minute flight deals from San Diego to Heathrow. Data last updated 21 October 2025 and is based on user searches.
Mon 27/1012:28SAN - LHR
1 stop13h 07mIberia
Mon 10/1112:35LHR - SAN
1 stop16h 13mIberia
Deal found 19/10£436
Tue 4/1118:00SAN - LHR
Nonstop10h 35mBritish Airways
Wed 26/1108:20LHR - SAN
1 stop15h 34mBritish Airways
Deal found 19/10£452
Tue 4/1117:35SAN - LHR
1 stop15h 30mLufthansa
Tue 11/1108:45LHR - SAN
1 stop15h 00mLufthansa
Deal found 20/10£454
Sun 9/1111:35SAN - LHR
1 stop13h 10mVirgin Atlantic
Tue 25/1113:00LHR - SAN
1 stop17h 20mVirgin Atlantic
Deal found 20/10£437
Sun 9/1112:45SAN - LHR
1 stop15h 05mMultiple Airlines
Tue 25/1107:40LHR - SAN
1 stop16h 05mMultiple Airlines
Deal found 19/10£453
Sun 9/1118:00SAN - LHR
Nonstop10h 35mBritish Airways
Tue 25/1112:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 20/10£455
Mon 10/1109:59SAN - LHR
2 stops27h 41mScandinavian Airlines
Tue 3/210:20LHR - SAN
2 stops20h 35mScandinavian Airlines
Deal found 18/10£449
Mon 17/1116:07SAN - LHR
2 stops21h 33mScandinavian Airlines
Mon 24/1106:40LHR - SAN
2 stops24h 15mScandinavian Airlines
Deal found 19/10£433
Mon 17/1116:07SAN - LHR
2 stops21h 33mScandinavian Airlines
Thu 20/1107:05LHR - SAN
3 stops23h 50mScandinavian Airlines
Deal found 19/10£451
Tue 18/1109:30SAN - LHR
1 stop13h 05mBritish Airways
Tue 25/1112:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 19/10£447
One-way flights from San Diego to Heathrow
Search for one-way flight options from San Diego to Heathrow. Find affordable one-way fares based on user searches. Data last updated 21 October 2025.
Mon 2/212:35SAN - LHR
1 stop16h 15mWestJet
Deal found 20/10£183
Mon 8/1220:10SAN - LHR
3 stops32h 40mMultiple Airlines
Deal found 19/10£194
Tue 9/1206:15SAN - LHR
3 stops22h 35mMultiple Airlines
Deal found 19/10£198
Sat 8/1122:00SAN - LHR
3 stops30h 50mMultiple Airlines
Deal found 20/10£210
Fri 5/1220:10SAN - LHR
3 stops32h 40mMultiple Airlines
Deal found 20/10£215
Fri 5/1221:05SAN - LHR
1 stop16h 55mJetBlue
Deal found 20/10£227
Sun 16/1106:41SAN - LHR
3 stops50h 49mMultiple Airlines
Deal found 20/10£230
Mon 2/320:59SAN - LHR
2 stops31h 51mMultiple Airlines
Deal found 18/10£232
Wed 12/1121:05SAN - LHR
1 stop16h 35mJetBlue
Deal found 20/10£250
Tue 9/1216:04SAN - LHR
2 stops17h 36mScandinavian Airlines
Deal found 20/10£252
Tue 31/315:59SAN - LHR
2 stops17h 41mScandinavian Airlines
Deal found 19/10£256
Cheapflights Fare Finder
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 21 October 2025.
Use the filters below to find and compare flights from San Diego to London Heathrow Airport that are best for you.
Fly from
San Diego
Fly to
Heathrow
Route
Depart
Return
Price
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Thu 26/2
07:00-18:30
2 stops27h 30m
London Heathrow
Sat 7/3
06:40-22:55
2 stops24h 15m
£443
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Thu 4/12
16:04-21:20
3 stops21h 16m
London Heathrow
Thu 11/12
06:40-23:58
2 stops25h 18m
£445
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Thu 12/2
10:00-17:40
2 stops23h 40m
London Heathrow
Thu 26/2
07:05-22:55
3 stops23h 50m
£452
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Thu 4/12
16:04-21:20
3 stops21h 16m
London Heathrow
Tue 9/12
06:40-21:05
2 stops22h 25m
£452
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Tue 17/2
10:00-21:40
2 stops27h 40m
London Heathrow
Tue 24/2
07:05-22:55
3 stops23h 50m
£452
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Thu 15/1
10:00-16:00
3 stops22h 00m
London Heathrow
Sat 24/1
06:40-22:55
3 stops24h 15m
£452
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Sat 14/2
10:00-21:40
2 stops27h 40m
London Heathrow
Sat 28/2
06:40-22:55
3 stops24h 15m
£452
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Tue 10/2
10:00-21:35
3 stops27h 35m
London Heathrow
Tue 24/2
07:05-22:55
3 stops23h 50m
£455
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Sun 30/11
18:00-12:35
Nonstop10h 35m
London Heathrow
Thu 11/12
12:50-16:10
Nonstop11h 20m
£466
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Tue 10/2
11:50-08:45
1 stop12h 55m
London Heathrow
Tue 24/2
06:30-12:05
1 stop13h 35m
£470
Flights are sorted by cheapest return flights first.
Deals found on 19/10
Showing 1-10 of 22 results
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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.
Cheapflights Insights
Everything you need to know about your flight from San Diego to London Heathrow Airport
Prices
Airlines
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 17 October 2025.
The best time to book flights from San Diego to London Heathrow Airport is 34 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, December is the cheapest month in which you can book a flight from San Diego to London Heathrow Airport (average of £361). Flying from San Diego to London Heathrow Airport in June is currently the most expensive (average of £618). 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 21 October 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.
How much does it cost for a return flight from San Diego to London Heathrow Airport?
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 21 October 2025.
The most flights from SAN to LHR are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).
What’s the top stopover airport for flights from San Diego to London Heathrow Airport?
Share of one-stop return flights from San Diego to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Dallas (DFW) – chosen by Cheapflights users on 50% of one-stop itineraries from San Diego to London Heathrow Airport on Cheapflights.
What’s the fastest stopover option from San Diego to London Heathrow Airport?
Shortest average travel time for one-stop one-way flights from San Diego to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 14h 16m.
What’s the fastest stopover option from San Diego to London Heathrow Airport?
Shortest average travel time for one-stop one-way flights from San Diego to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 14h 16m.
Which airport typically offers the quickest stopover for flights from San Diego to London Heathrow Airport?
Average stopover duration for one-stop one-way flights from San Diego to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Dallas (DFW) offer the fastest connection on this route, with an average stopover time of 2h 06m.
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 21 October 2025.
Read through reviews of airlines operating flights from San Diego to London Heathrow Airport, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
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 8 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.
How long is the flight from San Diego to London Heathrow Airport?
There are many flights that can get you from San Diego to London Heathrow Airport in 27h 30m. Fly via Scandinavian Airlines to get the fastest option. Airlines will cover a distance of 5469 mi.
What is the cheapest airline to fly from San Diego to London Heathrow Airport round-trip?
Our cheapest airline available from San Diego to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as £511 on this airline. This flight start at 23% lower than the current average price 3 months from now.
What are the most reliable airlines from San Diego to London Heathrow Airport?
Consider American Airlines (79%), Alaska Airlines (79%) or British Airways (79%) 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 £527, our data shows the cheapest flight currently is £310. When looking at the most popular route, (San Diego - London Heathrow), you can expect to pay £402 for that flight.
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, December is the cheapest month in which you can book a flight from San Diego to London Heathrow Airport (average of £361). Flying from San Diego to London Heathrow Airport in June is currently the most expensive (average of £618). 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.
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 21 October 2025.
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 21 October 2025.
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.
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