YXU - SAN

C$ 325 Find Cheap Flights from London to San Diego

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 31/1. 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 San Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Diego, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 440
Multiple Airlines
Mon 12/1Wed 14/1
YXU - SAN • 3 stops
Cheapest one-way flights
C$ 325
Air Canada
Sat 31/1
YXU - SAN • 2 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San Diego!
Flight Deals
Booking Insights
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

Mon, 12 Jan - Wed, 14 Jan
Multiple Airlines Logo
8:10 p.m. - 11:07 p.m.
YXU
-
SAN
29h 57m3 stops
Multiple Airlines Logo
1:35 p.m. - 6:34 a.m.
SAN
-
YXU
13h 59m2 stops
C$ 440Multiple Airlines
Mon, 12 Jan - Wed, 14 Jan
Multiple Airlines Logo
8:10 p.m. - 11:07 p.m.
YXU
-
SAN
29h 57m3 stops
Multiple Airlines Logo
7:10 a.m. - 6:34 a.m.
SAN
-
YXU
20h 24m3 stops
C$ 528Multiple Airlines
Mon, 12 Jan - Wed, 14 Jan
United Airlines Logo
5:40 p.m. - 11:48 a.m.
YXU
-
SAN
21h 08m2 stops
United Airlines Logo
6:55 p.m. - 5:05 p.m.
SAN
-
YXU
19h 10m2 stops
C$ 597United Airlines
Mon, 12 Jan - Wed, 14 Jan
United Airlines Logo
5:40 p.m. - 11:48 a.m.
YXU
-
SAN
21h 08m2 stops
United Airlines Logo
12:40 p.m. - 8:46 a.m.
SAN
-
YXU
17h 06m1 stop
C$ 646United Airlines
Sun, 11 Jan - Tue, 13 Jan
Air Canada Logo
5:40 p.m. - 9:40 a.m.
YXU
-
SAN
19h 00m2 stops
Air Canada Logo
9:00 a.m. - 9:21 p.m.
SAN
-
YXU
9h 21m2 stops
C$ 674Air Canada
Sun, 11 Jan - Tue, 13 Jan
Air Canada Logo
5:40 p.m. - 9:40 a.m.
YXU
-
SAN
19h 00m2 stops
Air Canada Logo
6:15 a.m. - 9:21 p.m.
SAN
-
YXU
12h 06m2 stops
C$ 685Air Canada
Sun, 11 Jan - Tue, 13 Jan
United Airlines Logo
5:10 a.m. - 9:56 p.m.
YXU
-
SAN
19h 46m2 stops
United Airlines Logo
11:08 a.m. - 8:46 a.m.
SAN
-
YXU
18h 38m2 stops
C$ 689United Airlines
Sun, 11 Jan - Tue, 13 Jan
Air Canada Logo
5:40 p.m. - 9:40 a.m.
YXU
-
SAN
19h 00m2 stops
Air Canada Logo
12:40 p.m. - 8:46 a.m.
SAN
-
YXU
17h 06m1 stop
C$ 723Air Canada
Sun, 11 Jan - Tue, 13 Jan
Air Canada Logo
5:40 p.m. - 9:40 a.m.
YXU
-
SAN
19h 00m2 stops
Air Canada Logo
12:40 p.m. - 8:46 a.m.
SAN
-
YXU
17h 06m1 stop
C$ 734Air Canada
Sun, 11 Jan - Tue, 13 Jan
Air Canada Logo
5:10 a.m. - 10:33 p.m.
YXU
-
SAN
20h 23m2 stops
Air Canada Logo
12:40 p.m. - 8:46 a.m.
SAN
-
YXU
17h 06m1 stop
C$ 770Air Canada
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 fly direct between London and San Diego?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from London to San Diego.

There are 2 airlines that fly direc from London to San Diego. They are Air Canada and United Airlines. The cheapest airline for this route is Air Canada, with the best round-trip deal found costing C$ 324. On average, the best prices for this route can be found at United Airlines.

Good to know

Cheapest flightC$ 325
Most popular time to fly and prices are also 19% lower on average.
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 3 days, the lowest price for a flight from London to San Diego was C$ 325 for a one-way ticket and C$ 440 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.

  • Which is the best airline for flights from London to San Diego, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from London to San Diego are United Airlines and Air Canada. With an average price for the route of C$ 413 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 434 and an overall rating of 7.1.

  • 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 airlines 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 9095 reviews
7.7Boarding
7.3Comfort
8.1Crew
6.6Food
7.1Entertainment
Airline reviews

Flight was late - I was downgraded from first class to coach

2.0 MediocreMukund, Dec 2025
DEN - SFO
Read more United Airlines reviews

Flight was late - I was downgraded from first class to coach

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

Efficient all round, very good crew. Short flight so the food, of course, was just snacks

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

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.

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

The staff was great and made the long trip easy peasy!

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

Too many delays. Seats too small. A budget airline. Will never fly Air Canada again.

The flight was very smooth and good. Boarding was fast, but the staff was just decently friendly.

I liked the behaviour of the crew members.The flight was good.

No food to provide, they forgot that, in some cases, people stay at the airport for hours without food. Now, to provide them with food, they have to ask them to pay, because some don't have money. That way, they can't eat.

Flight was cancelled last minute. Had to scramble and purchase a $2000 flight through a separate airlines. Stuck in Toronto two extra days. Missed my first two days on a new job. Had to rent a car for an additional two days. Scrambled to fins a place to live those extra two days. Spent a ton of extra money and lost a lot of money, as well as made a poor impression at work. Difficult difficult difficult

Terrible, return flight was cancelled a night before the flight was scheduled to depart and I was notified by an email and an automated message on their phone line. I’ll never book Air Canada again

Horrible, we were on a little DeHaviland 400 that was really small and shaky. I am 5' 4" and I had to duck my head to get in it felt like an old war plane.

Somebody either kayak or Air Canada booked my flight under my preferred name Betty instead of my legal name and I almost was denied boarding my flight

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

Information on your arrival and departure airports