YXU - SAN

C$ 317 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 17/3. 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$ 462
Air Canada
Mon 9/3Thu 12/3
YXU - SAN • 2 stops
Cheapest one-way flights
C$ 317
United Airlines
Tue 17/3
YXU - SAN • 3 stops
Top airlines
Air Canada
Cheapest • from C$ 462 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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, 9 Mar - Thu, 12 Mar
Air Canada Logo
5:40 p.m. - 12:03 p.m.
YXU
-
SAN
21h 23m
2 stops
Air Canada Logo
6:05 p.m. - 8:46 a.m.
SAN
-
YXU
11h 41m
2 stops
C$ 462Air Canada
Mon, 9 Mar - Thu, 12 Mar
Air Canada Logo
5:40 p.m. - 12:03 p.m.
YXU
-
SAN
21h 23m
2 stops
Air Canada Logo
12:40 p.m. - 8:46 a.m.
SAN
-
YXU
17h 06m
1 stop
C$ 512Air Canada
Mon, 9 Mar - Thu, 12 Mar
United Airlines Logo
5:10 a.m. - 8:18 p.m.
YXU
-
SAN
18h 08m
3 stops
United Airlines Logo
10:15 p.m. - 9:21 p.m.
SAN
-
YXU
20h 06m
2 stops
C$ 564United Airlines
Mon, 9 Mar - Thu, 12 Mar
United Airlines Logo
5:10 a.m. - 7:00 p.m.
YXU
-
SAN
16h 50m
2 stops
United Airlines Logo
10:30 p.m. - 5:05 p.m.
SAN
-
YXU
15h 35m
2 stops
C$ 568United Airlines
Mon, 9 Mar - Thu, 12 Mar
Air Canada Logo
5:40 p.m. - 11:38 a.m.
YXU
-
SAN
20h 58m
2 stops
Air Canada Logo
12:40 p.m. - 8:46 a.m.
SAN
-
YXU
17h 06m
1 stop
C$ 748Air Canada
Mon, 9 Mar - Thu, 12 Mar
Air Canada Logo
9:40 a.m. - 7:00 p.m.
YXU
-
SAN
12h 20m
2 stops
Air Canada Logo
12:40 p.m. - 8:46 a.m.
SAN
-
YXU
17h 06m
1 stop
C$ 752Air Canada
Mon, 9 Mar - Thu, 12 Mar
United Airlines Logo
5:10 a.m. - 8:18 p.m.
YXU
-
SAN
18h 08m
3 stops
United Airlines Logo
6:55 p.m. - 5:05 p.m.
SAN
-
YXU
19h 10m
2 stops
C$ 783United 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 72 hours.

In the past 3 days, the cheapest round-trip tickets from London to San Diego were found on Air Canada (C$ 462) and United Airlines (C$ 564).

Good to know

Low seasonApril
Cheapest flightC$ 317
Best time to beat the crowds (26% less expensive on average)
Most popular time to fly and prices are also 22% 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$ 317 for a one-way ticket and C$ 462 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$ 412 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$ 502 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 9222 reviews
7.1Entertainment
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
Airline reviews

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 ..

2.0 MediocreAnonymous, Feb 2026
YYZ - SFO
Read more United Airlines reviews

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 ..

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

l really enjoy very much the flight was very pleasant

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.

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