YXU - SAN

C$ 258 Find Cheap Flights from London to San Diego – 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 London to San Diego departing on 9/9. 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

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Everything you should know

Cheapest round-trip
C$ 383
WestJet
Fri 16/10Mon 19/10
YXU - SAN • 1 stop
Cheapest one-way flights
C$ 258
Air Canada
Wed 9/9
YXU - SAN • 1 stop
Top airlines
Cheapest • from C$ 383 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between London and San Diego. You’ll need at least 1 connection.
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Flight Deals

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

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

Fri, 16 Oct - Mon, 19 Oct
WestJet Logo
6:10 a.m. - 2:10 p.m.
YXU
-
SAN
11h 00m
1 stop
WestJet Logo
3:30 p.m. - 5:20 a.m.
SAN
-
YXU
10h 50m
1 stop
C$ 383WestJet
Fri, 16 Oct - Mon, 19 Oct
Air Canada Logo
10:05 a.m. - 6:40 p.m.
YXU
-
SAN
11h 35m
2 stops
Air Canada Logo
10:30 p.m. - 2:55 p.m.
SAN
-
YXU
13h 25m
2 stops
C$ 535Air Canada
Sat, 17 Oct - Mon, 19 Oct
Air Canada Logo
10:05 a.m. - 6:40 p.m.
YXU
-
SAN
11h 35m
2 stops
Air Canada Logo
6:40 a.m. - 9:40 p.m.
SAN
-
YXU
12h 00m
2 stops
C$ 535Air Canada
Sat, 17 Oct - Tue, 20 Oct
Air Canada Logo
5:40 a.m. - 3:49 p.m.
YXU
-
SAN
13h 09m
2 stops
Air Canada Logo
6:40 a.m. - 9:40 p.m.
SAN
-
YXU
12h 00m
2 stops
C$ 535Air Canada
Sat, 17 Oct - Mon, 19 Oct
Air Canada Logo
10:05 a.m. - 6:40 p.m.
YXU
-
SAN
11h 35m
2 stops
Air Canada Logo
6:40 a.m. - 9:40 p.m.
SAN
-
YXU
12h 00m
2 stops
C$ 537Air Canada
Sat, 17 Oct - Mon, 19 Oct
Multiple Airlines Logo
6:10 a.m. - 7:37 p.m.
YXU
-
SAN
16h 27m
2 stops
Multiple Airlines Logo
3:30 p.m. - 5:20 a.m.
SAN
-
YXU
10h 50m
1 stop
C$ 541Multiple Airlines
Fri, 16 Oct - Mon, 19 Oct
Delta Logo
6:10 a.m. - 2:10 p.m.
YXU
-
SAN
11h 00m
1 stop
Delta Logo
3:30 p.m. - 5:20 a.m.
SAN
-
YXU
10h 50m
1 stop
C$ 549Delta
Sat, 17 Oct - Mon, 19 Oct
Multiple Airlines Logo
6:10 a.m. - 7:37 p.m.
YXU
-
SAN
16h 27m
2 stops
Multiple Airlines Logo
3:30 p.m. - 5:20 a.m.
SAN
-
YXU
10h 50m
1 stop
C$ 552Multiple Airlines
Fri, 16 Oct - Mon, 19 Oct
United Airlines Logo
5:40 a.m. - 3:49 p.m.
YXU
-
SAN
13h 09m
2 stops
United Airlines Logo
6:28 p.m. - 9:20 a.m.
SAN
-
YXU
11h 52m
2 stops
C$ 597United Airlines
Sat, 17 Oct - Mon, 19 Oct
United Airlines Logo
10:05 a.m. - 8:45 p.m.
YXU
-
SAN
13h 40m
3 stops
United Airlines Logo
6:40 a.m. - 9:40 p.m.
SAN
-
YXU
12h 00m
2 stops
C$ 597United Airlines
Booking Insights

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

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

Which airlines provide the cheapest flights from London to San Diego?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from London to San Diego were found on WestJet (C$ 383) and Air Canada (C$ 535).

Good to know

Cheapest flight

C$ 258
Flight from London to San Diego

When to book flights from London to San Diego

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

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

    In the last 5 days, the lowest price for a flight from London to San Diego was C$ 258 for a one-way ticket and C$ 383 for a round-trip.

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

    London airport is called London and the only airport in San Diego is San Diego.

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

    We unfortunately don’t have that data for this specific route.

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

    Star Alliance is the only airline alliance operating flights between London and San Diego.

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

    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 London to San Diego.

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

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

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

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

    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 San Diego from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from London to San Diego

 
See real verified KAYAK customer reviews for airlines flying from London to San Diego. 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 London to San Diego? 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.
7.4
United AirlinesOverall score based on 10046 reviews
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

8.0 ExcellentSheldon, Jul 2026
IAD - SAN
Read more United Airlines reviews

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

UA594 was delayed multiple times. I ended up getting picked up so I can make it in time for work 6AM on Monday, 7/6/2026

Flight attendants had a little attitude. Food tastes no good.

Very poor. The flight was delayed from Toronto because some forget to do there job . I got to my connecting gate in San Francisco 10 minutes before the departure.but this didn’t let me board even though the flight was still there for an other 30 minutes. The the gentleman at the unite airline desk told me that they usually wait for passengers but air Canada called and told them not to we I been rerouted to Manila instead of Hong Kong . In San Francisco they mad me check in my carryon bag . I was told the it will directly go yo ho chi minn cuyt but I was told that by the Vietnams airline desk that’s not there I’m 10 hours behind my scheduled flight and looks like I I’m going without baggage. I don’t have a chance of catching ..

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Was a pain having to leave the plane and reboard but glad the plane was fixed

Connecting flights were poor,especially in Naples.our Lufthansa air bus was a joke.way too small for that long of a flight.no room at all.couldn’t even get out of the seats to move around or go to the bathrooms.we thought we were getting an actual air bus,double decker.i will never fly that long in a plane like that again.kind of misleading to call it an air bus.we actually had more room on our buses that we used.

For a 22 minute flight all you expect is for it to be safe and comfortable

Lost connnection had to stayON in Chicago Was a mess

Booked economy through United - air canada treated it as standby and was almost refused boarding.

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

Information on your arrival and departure airports