YXU - SAN

C$ 653 Find Cheap Flights from London to San Diego

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to San Diego departing on 22/2. 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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 25% or moreCompare multiple travel sites with one search.

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

Free to useThere are no hidden charges or fees.

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

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

Sun, 22 Feb - Thu, 26 Feb
United Airlines Logo
9:25 a.m. - 9:25 p.m.YXU-SAN
15h 00m2 stops
United Airlines Logo
7:05 a.m. - 9:21 p.m.SAN-YXU
11h 16m2 stops
C$ 653United Airlines
Find Deal
Sun, 22 Feb - Thu, 26 Feb
United Airlines Logo
9:25 a.m. - 9:25 p.m.YXU-SAN
15h 00m2 stops
United Airlines Logo
10:15 p.m. - 9:21 p.m.SAN-YXU
20h 06m2 stops
C$ 723United Airlines
Find Deal
Sun, 22 Feb - Thu, 26 Feb
United Airlines Logo
5:15 a.m. - 11:53 a.m.YXU-SAN
9h 38m1 stop
United Airlines Logo
6:30 a.m. - 9:21 p.m.SAN-YXU
11h 51m2 stops
C$ 747United Airlines
Find Deal
Sun, 22 Feb - Thu, 26 Feb
Air Canada Logo
5:10 a.m. - 11:53 a.m.YXU-SAN
9h 43m1 stop
Air Canada Logo
6:10 p.m. - 8:46 a.m.SAN-YXU
11h 36m2 stops
C$ 789Air Canada
Find Deal
Sun, 22 Feb - Thu, 26 Feb
Air Canada Logo
5:10 a.m. - 11:53 a.m.YXU-SAN
9h 43m1 stop
Air Canada Logo
12:40 p.m. - 8:46 a.m.SAN-YXU
17h 06m1 stop
C$ 799Air Canada
Find Deal
Sun, 22 Feb - Thu, 26 Feb
Air Canada Logo
5:10 a.m. - 3:39 p.m.YXU-SAN
13h 29m2 stops
Air Canada Logo
12:40 p.m. - 8:46 a.m.SAN-YXU
17h 06m1 stop
C$ 825Air Canada
Find Deal
Sun, 22 Feb - Thu, 26 Feb
Air Canada Logo
5:10 a.m. - 11:53 a.m.YXU-SAN
9h 43m1 stop
Air Canada Logo
12:40 p.m. - 8:46 a.m.SAN-YXU
17h 06m1 stop
C$ 838Air Canada
Find Deal
Sun, 22 Feb - Thu, 26 Feb
United Airlines Logo
9:25 a.m. - 8:49 p.m.YXU-SAN
14h 24m3 stops
United Airlines Logo
6:30 a.m. - 9:21 p.m.SAN-YXU
11h 51m2 stops
C$ 1,471United Airlines
Find Deal
Sun, 22 Feb - Thu, 26 Feb
United Airlines Logo
9:25 a.m. - 8:49 p.m.YXU-SAN
14h 24m3 stops
United Airlines Logo
7:00 a.m. - 9:21 p.m.SAN-YXU
11h 21m2 stops
C$ 1,513United Airlines
Find Deal
Sun, 22 Feb - Thu, 26 Feb
United Airlines Logo
9:25 a.m. - 8:49 p.m.YXU-SAN
14h 24m3 stops
United Airlines Logo
7:00 a.m. - 9:21 p.m.SAN-YXU
11h 21m2 stops
C$ 1,690United Airlines
Find Deal

Everything you should know

Top airlines
United Airlines
Cheapest • from C$ 653 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
C$ 653
United Airlines
Sun 22/2Thu 26/2
YXU - SAN • 2 stops
Cheapest one-way flights
Multiple Airlines
Mon 3/11
YXU - SAN • multi-stop
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San Diego!
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 United Airlines (C$ 653) and Air Canada (C$ 789).

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$ 330. On average, the best prices for this route can be found at United Airlines.

Good to know

Cheapest flightC$ 653
Most popular time to fly and prices are also 29% 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$ 653 for a round-trip ticket.

  • 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$ 424 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$ 442 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 8997 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

7 hours delayed due to operational issues on United’s end. Basically laziness.

2.0 MediocreGray, Nov 2025IAD - SFO
Read more United Airlines reviews

7 hours delayed due to operational issues on United’s end. Basically laziness.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

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

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

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

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

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.