SAN - LHR

$330 Find Cheap Flights from San Diego to London Heathrow Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Heathrow departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know

Cheapest round-trip
$956
Typical prices: $631-$977
Delta
Wed 9/23Wed 10/14
SAN - LHR • 2 stops
Cheapest non-stop
$957
Typical prices: $701-$1,066
British Airways
Wed 9/9Wed 9/16
SAN - LHR • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
British Airways premium economy adds seven inches of legroom and footrests.
American Airlines Premium Economy adds upgraded seats, meals, and a sleep set.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $956 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with British Airways. Average duration is 10h 42m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $685 (round-trip)
Shortest trip • 12h 17m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 23% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
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Flight Deals
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Flight Deals

Cheap Flights from San Diego to Heathrow (SAN-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Heathrow

Wed, Sep 23 - Wed, Oct 14
Delta Logo
6:15 am - 6:25 am
SAN
-
LHR
16h 10m
2 stops
Delta Logo
8:40 am - 7:14 pm
LHR
-
SAN
18h 34m
2 stops
$956Delta
Wed, Sep 30 - Wed, Oct 7
Delta Logo
9:46 am - 10:20 am
SAN
-
LHR
16h 34m
2 stops
Delta Logo
8:40 am - 7:14 pm
LHR
-
SAN
18h 34m
2 stops
$956Delta
Mon, Sep 14 - Sun, Sep 20
Multiple Airlines Logo
7:00 am - 11:55 am
SAN
-
LHR
20h 55m
2 stops
Multiple Airlines Logo
2:10 pm - 2:10 pm
LHR
-
SAN
32h 00m
1 stop
$956Multiple Airlines
Wed, Sep 9 - Wed, Sep 16
British Airways Logo
11:15 am - 9:05 am
SAN
-
LHR
13h 50m
1 stop
British Airways Logo
11:35 am - 2:55 pm
LHR
-
SAN
11h 20mnonstop
$957British Airways
Wed, Sep 9 - Wed, Sep 16
British Airways Logo
4:45 pm - 11:30 am
SAN
-
LHR
10h 45mnonstop
British Airways Logo
11:35 am - 2:55 pm
LHR
-
SAN
11h 20mnonstop
$957British Airways
Fri, Sep 11 - Mon, Sep 28
Multiple Airlines Logo
6:25 am - 11:55 am
SAN
-
LHR
21h 30m
2 stops
Multiple Airlines Logo
1:55 pm - 2:10 pm
LHR
-
SAN
32h 15m
1 stop
$957Multiple Airlines
Thu, Dec 10 - Sat, Dec 12
Lufthansa Logo
4:06 pm - 10:55 pm
SAN
-
LHR
22h 49m
2 stops
Lufthansa Logo
7:30 pm - 6:37 pm
LHR
-
SAN
31h 07m
2 stops
$960Lufthansa
Wed, Oct 7 - Mon, Oct 12
Lufthansa Logo
5:15 pm - 7:40 pm
SAN
-
LHR
18h 25m
1 stop
Lufthansa Logo
7:10 pm - 3:25 pm
LHR
-
SAN
28h 15m
1 stop
$960Lufthansa
Sun, Aug 23 - Tue, Sep 8
American Airlines Logo
4:29 pm - 2:25 pm
SAN
-
LHR
13h 56m
1 stop
American Airlines Logo
11:35 am - 2:55 pm
LHR
-
SAN
11h 20mnonstop
$964American Airlines
Sun, Aug 23 - Tue, Sep 8
American Airlines Logo
4:45 pm - 11:30 am
SAN
-
LHR
10h 45mnonstop
American Airlines Logo
11:35 am - 2:55 pm
LHR
-
SAN
11h 20mnonstop
$964American Airlines
Booking Insights

KAYAK's insights & trends for San Diego to Heathrow flights

Get data-powered insights and trends into flights from San Diego to Heathrow to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from San Diego to London Heathrow Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Diego to London Heathrow Airport departing in September.

Flight prices are typical for this route right now.

Flights to London Heathrow Airport from San Diego usually cost between $766 and $1,194 in September.
The lowest price found in the past 5 days was $956 on Delta (Sep 30-Oct 7).

What’s the cheapest day of the week to fly from San Diego to London Heathrow Airport?

The average price of all round-trip flights from San Diego to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Diego to London Heathrow Airport, look for departures on Wednesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from London Heathrow Airport, Wednesday is the cheapest day to fly and Tuesday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to London Heathrow Airport is November, where tickets cost $765 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,493 and $1,460 respectively.

Can I save money by flying with a layover from San Diego to London Heathrow Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $821 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to London Heathrow Airport, you should book around 2 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Expert advice

Expert advice for your flight from San Diego to Heathrow

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways and LHR

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Brandon Schultz

Brandon Schultz

Expert on SAN

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Good to know

Low season

February

Cheapest flight

$330
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 50% increase in price.
Flight from San Diego to London Heathrow Airport

When to book flights from San Diego to Heathrow

Are your dates flexible? Find out the best times to travel from San Diego to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Diego to London Heathrow Airport flights

  • Are there attraction sites to visit at LHR ?

    Considering LHR is based in one of the most prominent cities in the world, just arriving at the airport is a destination in itself. After finding yourself in London, you can check out Chessington World Adventure.. The is a short drive from the airport, where you can explore a zoo, rides, and roller coasters.

  • How can one travel to the city center from LHR?

    Consider getting Heathrow Express, a non-stop train at the terminals which will take you to the city center in around 15 minutes time. Also, you can take a bus at Heathrow Central Bus Station located at Terminals 1 and 2 at the airport.

  • Where can I get car rentals after landing at LHR?

    For you to navigate swiftly to the city after landing at LHR from San Diego, you should consider getting a car rental from Hertz, Enterprise, SIXT, Europcar, Avis, and Budget car rental agencies. The offices of these car rentals are located at Terminals 2, 3, 4, and 5 of the airport.

  • Which kid-friendly amenities are available on flights from San Diego to LHR?

    Families traveling with children have a reason to smile while using the San Diego to LHR airport flight. The flight provides several kid-friendly amenities such as video games, kid-friendly meals, and a kid-playing area which ease the stress of flying with babies and kids.

  • What is the cheapest flight from San Diego to London Heathrow Airport?

    In the last 5 days, the lowest price for a flight from San Diego to London Heathrow Airport was $330 for a one-way ticket and $956 for a round-trip.

  • Do I need a passport to fly between San Diego and London Heathrow Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Diego and on arrival in London Heathrow Airport.

  • Which airports will I be using when flying from San Diego to London Heathrow Airport?

    When flying out of San Diego you will be using San Diego. You will be landing at London Heathrow Airport, also known as London Heathrow.

  • Which airlines offer Wi-Fi service onboard planes from San Diego to London Heathrow Airport?

    All the following airlines offer inflight Wi-Fi service on the San Diego to London Heathrow Airport flight route: United Airlines, Lufthansa, American Airlines, Delta, Iberia, British Airways, Finnair, and KLM.

  • Which aircraft models fly most regularly from San Diego to London Heathrow Airport?

    The Boeing 777 is the aircraft model that flies most regularly on the San Diego to London Heathrow Airport flight route.

  • Which airline alliances offer flights from San Diego to London Heathrow Airport?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between San Diego and London Heathrow Airport, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from San Diego to London Heathrow Airport?

    There are nonstop flights from San Diego to London Heathrow Airport on a daily basis.

  • Which is the best airline for flights from San Diego to London, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from San Diego to London are Alaska Airlines and Delta. With an average price for the route of $979 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $975 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from San Diego to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to San Diego with another airline. Booking your flights between San Diego and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Diego to London Heathrow Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $457 or less one-way and $968 or less round-trip.
  • Travelers who need a flight to London Heathrow Airport (LHR) from San Diego should consider getting a comfortable flight from the San Diego International Airport (SAN). If you have an early flight and do not want to miss it, consider staying at Holiday Inn Express San Diego Airport-Old Town, IHG Hotel. The hotel has a free airport shuttle which will help you save on transport to the airport.
  • San Diego International Airport considers passengers with pets who need to have a flight from San Diego to LHR. Before departure, your pet’s potty can make a breeze using the different pet relief areas at the airport. These areas are located outside airport terminals, except for the nation’s first indoor pet relief area in Terminal 2 West.
  • Passengers who need to have a flight from San Diego to LHR airport are required to book their flight with various airlines at SAN airport. While at SAN airport, you may get your airline tickets through Finnair, British Airways, Lufthansa, SWISS, and American Airlines, located at both terminals.
  • If you have a flight from San Diego to LHR airport, you should consider using various means of transport from the city center to San Diego International Airport. You may consider using the taxi, shuttle, bus, town car, or tram to drop you at the Lindbergh, Terminal 1, or Terminal 2 East of the airport.
  • Travelers with reduced mobility are highly considered at the San Diego International airport. The airport has several wheelchairs for these individuals at the terminals. The airport management has telephones at the reservations boards that these individuals can access when in need of an accessible shuttle or any form of assistance while at the airport. Also, there are parking spaces for the disabled at the parking lots, which are situated at the airport terminals.

Prefer to fly direct from San Diego to London Heathrow Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Diego to London Heathrow.
Find which airlines fly direct from San Diego Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

San Diego to London Heathrow

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Direct returns

London Heathrow to San Diego

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Reviews of the top 5 airlines serving from San Diego to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from San Diego to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8480 reviews
7.2Food
7.8Entertainment
8.1Boarding
7.8Comfort
8.5Crew
Airline reviews

The crew were efficient. The pilots seemed professional. It was a bit chilly in our seats. The sheet provided weren’t very helpful.

8.0 ExcellentAnonymous, May 2026
ATL - LHR
Read more Delta reviews

The crew were efficient. The pilots seemed professional. It was a bit chilly in our seats. The sheet provided weren’t very helpful.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

Passengers need to check in big baggage instead of bringing on the plane. That cause inconvenience for everyone. Otherwise flight was good.

Great. Very smooth. Plenty of information. However, wish they would give out a menu in advance of making a dinner choice like other international airlines. The flight attendant says chicken or pasta and there are details about ingredients or spices requiring the passenger to ask which requires the flight attendant to answer many times. So easy to solve this problem. P

All fine save for the abominable catering. Really gone downhill. We found it all inedible.

Late flight caused a missed connection, had to be put on a later international flight without my requested vegan meal.

Half the bathrooms assigned to economy were out of action

The crew members were great. The food was good. Entertainment was average - Could use a wider and better selections of movies and series.

Flight was cancelled after 3 1/2 hours. Support for rebooking was overwhelmed. Lost first class tickets and to fly economy.

Great staff great experience, made a 2 hour delay very bearable

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

The crew was very good. However, the equipment was a bit dated. Some of the electronics were not working. To top it, three bags didn’t arrive with me. Two of them were delivered a day later. I’m still waiting for the third bag, I was so looking forward to this virgin Atlantic flight, but, I am disappointed.

My only complaint is that the pocket in front of me was ripped and my things, like iPad and airline magazines, kept slipping to the floor.

Flight delayed yet again. Crew apathetic and unhelpful re affect on connecting flight.

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

Waited for our plane from HNL so we didn't miss connection. AMAZING Service for that, then really clean plane. Nice airline attendants.

The trip was very smooth. Flight crew were very friendly and efficient.

Old plane with broken interiors, unclean restrooms and non attentive crew.

The infotainment system is liking compared to Airlines like Emirates Etihad Singapore Qantas

Crew was great! Food sub-bar, tepid & flavorless. No snack options on trans-atlantic flight. Premium Economy seats ok, leg rest wouldn’t stay in place.

Entertainment system did not function. USB ports did not function. Wi-Fi did not function. Terrible trifecta…

Luggage did not make it onto my plane. Business seats were economy with empty row seat. Just horrible experience. Why would the company allow for transfers that don’t give employees enough time to transfer luggages??

For an long range economy flight I feel more space and more meal options need to be offered for flights over 5 hours

B-class on an old plane with antiquated amenities and poor service. Landed in Rome w/o bag that didn’t make the connection (plenty of time in London). Bag will come to hotel NOT the day it lands but the following night!! Still waiting for bag…BA had nothing to offer in support and couldn’t even tell me their comp, told to submit receipts and then I’ll learn what is or isn’t covered.

It's a long flight and that is always difficult. I was comfortable and well. The movies available were great and the crew was good.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

The business class layout of chairs was weired. You are sitting directly across stranger.,

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

British Airways staff are very polite and willing to help.

I was booked in Premium Economy and never given a chance to choose to purchase my own seat. Ended up with a middle seat, which was very difficult for me. The airline then left my bag in London so when I arrived in Instanbul it was not there. They delivered it to me the next day but many valuable items had been stolen. I've been flying with BA for years and this was the first time I had such a bizarre and bad experience with them.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

Awful it always is unfortunately is the only way to fly direct to london

I’ll fly with any other airline. Besides all the fees and not being able to change a flight even to a later flight without paying £150 charge. Or that the last flight the WiFi didn’t work, the food was so bad, and ran out of options. Seat didn’t recline. And the headset jack didn’t work. This isn’t my first flight with them, and on every flight there is always something wrong that makes the long 10 hours feel like an eternity. Never flying them again.

Horrible. Never again. Wouldn’t let us use the lounge. We had to pay for another lounge to have access.

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

Busy flight and less room to rest on overnight flight.

Everything you need to know for your flight from San Diego to Heathrow

Information on your arrival and departure airports