SAN - LON

$252 Find Cheap Flights from San Diego to London

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 London departing on 3/24. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to London.
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$643
Overall average: $792
Lufthansa
Sun 3/8Wed 3/18
SAN - LHR • 1 stop
Cheapest non-stop
$691
Typical prices: $787-$1,143
British Airways
Sun 4/26Fri 5/8
SAN - LHR • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Consider Main Cabin Extra on American for perks.
Security lines at SAN are generally manageable.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Lufthansa
Cheapest • from $643 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
SAN
-
LHR
Cheapest
SAN
-
LHR
Most popular
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 19% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from San Diego to London (SAN-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to London 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 London

Sun, Mar 8 - Wed, Mar 18
Lufthansa Logo
6:35 pm - 3:50 pm
SAN
-
LHR
14h 15m
1 stop
Lufthansa Logo
7:40 am - 7:48 pm
LHR
-
SAN
19h 08m
2 stops
$643Lufthansa
Wed, Mar 11 - Wed, Mar 18
Lufthansa Logo
11:03 am - 5:05 pm
SAN
-
LHR
23h 02m
2 stops
Lufthansa Logo
7:40 am - 7:48 pm
LHR
-
SAN
19h 08m
2 stops
$647Lufthansa
Wed, Mar 4 - Tue, Mar 10
Lufthansa Logo
7:45 am - 12:50 pm
SAN
-
LHR
21h 05m
2 stops
Lufthansa Logo
7:40 am - 4:45 pm
LHR
-
SAN
16h 05m
1 stop
$648Lufthansa
Wed, Mar 18 - Tue, Mar 24
Multiple Airlines Logo
6:35 pm - 9:45 pm
SAN
-
LGW
20h 10m
2 stops
Multiple Airlines Logo
5:00 pm - 4:45 pm
LGW
-
SAN
30h 45m
2 stops
$649Multiple Airlines
Sun, Apr 5 - Tue, Apr 21
Multiple Airlines Logo
6:10 pm - 1:20 pm
SAN
-
LHR
35h 10m
1 stop
Multiple Airlines Logo
6:55 am - 3:25 pm
LHR
-
SAN
16h 30m
1 stop
$650Multiple Airlines
Fri, May 22 - Sun, May 24
Scandinavian Airlines Logo
11:03 am - 9:20 am
SAN
-
LHR
38h 17m
2 stops
Scandinavian Airlines Logo
7:30 pm - 11:15 pm
LHR
-
SAN
35h 45m
2 stops
$652Scandinavian Airlines
Wed, Apr 29 - Fri, May 8
SWISS Logo
1:20 pm - 5:50 pm
SAN
-
LGW
20h 30m
2 stops
SWISS Logo
9:25 am - 10:34 pm
LGW
-
SAN
21h 09m
2 stops
$665SWISS
Wed, Mar 11 - Tue, Mar 17
SWISS Logo
4:00 pm - 5:50 pm
SAN
-
LGW
18h 50m
2 stops
SWISS Logo
6:40 pm - 10:40 pm
LGW
-
SAN
35h 00m
2 stops
$667SWISS
Tue, Mar 3 - Thu, Mar 19
Virgin Atlantic Logo
2:00 pm - 7:35 pm
SAN
-
LCY
21h 35m
1 stop
Virgin Atlantic Logo
7:45 am - 12:11 am
LCY
-
SAN
23h 26m
2 stops
$704Virgin Atlantic
Tue, May 12 - Tue, May 19
Virgin Atlantic Logo
1:40 pm - 6:30 pm
SAN
-
LCY
20h 50m
1 stop
Virgin Atlantic Logo
10:00 am - 10:32 pm
LCY
-
SAN
20h 32m
2 stops
$718Virgin Atlantic
Booking Insights

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

Get data-powered insights and trends into flights from San Diego to London 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?

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 departing in March.

What is the cheapest San Diego to London flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from San Diego to London costs $481 on the route between San Diego (SAN) and London Heathrow Airport (LHR). It is also the most popular route.

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

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

For San Diego to London, Monday is the cheapest day to fly on average and Thursday is the most expensive. Flying from London back to San Diego, the best deals are generally found on Tuesday, with Thursday being the most expensive.

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

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, 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 is October, where tickets cost $685 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,354 and $1,101 respectively.

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

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.

No, with an average price for the route of $734, prices are generally cheapest when you fly direct.

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

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, 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, you should book around 2 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Expert advice

Expert advice for your flight from San Diego to London

 
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 seasonJanuary
Cheapest flight$252
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from San Diego to London Stansted Airport

When to book flights from San Diego to London

Are your dates flexible? Find out the best times to travel from San Diego to London 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 flights from San Diego to London

  • Are the nonstop flights from San Diego to London?

    Unfortunately, there are no nonstop flights from San Diego to London. United Airlines operates a flight with only one stop, either in Newark (EWR) or Chicago O'Hare (ORD). Delta Air Lines also operates a flight route with a stop in Atlanta Hartsfield-Jackson (ATL). Depending on the length of your stop, flight times vary between 15h 25min and 18h 30min.

  • Does San Diego Airport have lounges?

    All lounges at the San Diego Airport are located in Terminal 2. Both Delta Air Lines and United Airlines have lounges for their passengers, the Delta Sky Club, and the United Club. If you're not flying with Delta or United, check out the Airspace Lounge, which you can enter for about $25.

  • What is a quick way to get from London Heathrow to London’s city center?

    You can either take the Piccadilly Line of the subway, known locally as the "tube", which is great for central locations as well as the West End, or the Heathrow Express to Paddington Station on the national rail service if you’re staying in Paddington or Bayswater. Tickets for both trips can be booked online in advance of your journey, and note that fares will depend significantly on the time and date of travel.

  • Are there are any on-site hotels at Heathrow Airport?

    There are four on-site hotels, depending on the terminal you are traveling from. Aerotel is connected to Terminal 2. The Hilton and YOTEL are connected to Terminal 4. The Hilton is equipped with three restaurants as well as business and fitness centers, while YOTEL has 32 cabins which can be booked by the hour. Sofitel is connected to Terminal 5 and has two restaurants as well as conference facilities.

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

    In the last 3 days, the lowest price for a flight from San Diego to London was $252 for a one-way ticket and $643 for a round-trip.

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

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

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

    On your way to London, you’ll fly out from San Diego. You’ll be landing in one of London’s 4 airports: London City, London Gatwick, London Heathrow, or London Stansted.

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

    All the following airlines offer inflight Wi-Fi service on the San Diego to London flight route: American Airlines, Finnair, Iberia, United Airlines, Vueling, SWISS, and Lufthansa.

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

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

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

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

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

    There are nonstop flights from San Diego to London 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 $1,939 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $811 and an overall rating of 7.9.

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

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London 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?

    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 with an airline and back to San Diego with another airline.

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

    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 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

  • Looking for a cheap flight? 25% of our users found flights on this route for $356 or less one-way and $665 or less round-trip.
  • San Diego has only one major airport to depart from, San Diego International Airport (SAN), which is conveniently located just 3 miles northwest of Downtown San Diego. San Diego Airport has lots of shopping and dining options while you’re waiting for your flight. Dining concessions include both local and national brands. Shopping concessions range from boutiques and gift shops. In addition, if you have extra time, book a treatment at one of the two airport spas or head to one of the terminal’s lounges to relax or catch a bite.
  • Alternatively, London has six different airports to choose from. London Heathrow (LHR) is the city’s busiest airport and has the largest offering of international flights. The airport’s four terminals are also well connected to the city center, about 15 miles west, both by subway and national rail. Heathrow is also one of the busiest, with long lines for customs.
  • Most flights from San Diego also fly into Heathrow. Get the Heathrow Airport Guide App on your phone before your travel for easy navigation and more travel tips.
  • London Gatwick (LGW) is another popular airport and is generally less crowded than Heathrow. It is located 29 miles south of London. The airport also offers Premium Passport control services for an expedited border control lane. Gatwick is well connected by rail service.
  • London City (LCY) is the closest airport to central London, just 7 miles east. However, this airport typically only offers short-distance flights catering to business travelers.
  • London Luton (LTN), London Stansted (STN), and London Southend (SEN) are further away from the city center but are also the gateways for cheap flights around Europe, serving airlines like Ryanair, easyJet, and Wizz Air.

Prefer to fly direct from San Diego to London?

 
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.
Find which airlines fly direct from San Diego Airport to London, which days they fly and book direct flights.

Direct departures

San Diego to London

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 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 London

 
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 London? 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.
7.9
DeltaOverall score based on 8205 reviews
7.8Entertainment
8.1Boarding
7.2Food
7.9Comfort
8.5Crew
Airline reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

10.0 ExcellentSoosnata, Feb 2026
LAX - HNL
Read more Delta reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

It was nt delta. It was aeromexo. Service was awful. They served a very small drink and NO snack for a 3hr and 35min flight. Then for the first 30 min of the flight is was talk and talk over head interruption the movie/ show i picked to watch.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Food has been disappointing in both legs of flight to india

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

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

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

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

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

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.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

My flight to London from Philadelphia was cancelled due to weather.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

The flight was canceled 3 hours after original take off time

The flight was canceled on a Thursday last minute. I lost thousands of dollars in hotels and car rental

Excellent lie flat seat for premium economy! Great staff. Bad food . Not so great entertainment. My bag didn’t make it either.

Really like the idea experience on this airline I will use again

The boarding procedure got confusing because they wanted to weigh everyone’s carry-on. Apparently mine was 3 1/2 kg over their limit. I didn’t know they had a limit. And at the check-in desk, nothing was said about this. They wanted me to check the carry-on at no charge and that would have been fine except then they told me at my connection in London I would have to go outside to baggage claim retrieve my bag, and then recheck it. In other words, they could not check it to my final destination, only to London. I told him this was unacceptable so after a few minutes of discussion, they came back and said that my bag would be OK to carry on the plane. It seems that if you have a connection then the weight is not as important. Then when I actually went to board the boarding agent said I needed a tag indicating that my bag had been weighed, even though she had just five minutes ago talked to the same person who cleared me. Lots of confusion seems like a very bad process. They need to improve this.

My flight being automatically moved messed up my travel plans, and I had to quickly find an alternative mode of transportation. I couldn’t get a refund from any of the companies involved. Kayak, Ibiza, or Vueling. I am still unsure of how to settle my concern.

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

The staff was very nice and helpful. Some of the best crew I have met.

Suddenly, I don't find my flight back on the app Help Ticket 0757345716866 Hoeflich Flight back Sunday ib5333 Ib2629 Ib4268

They had us seating down for one hour just waiting on the plane

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

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

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

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

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

Information on your arrival and departure airports