C$ 225 Find Cheap Flights from London to California – 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 California departing on 8/9. 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.
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Flight Deals

Best California Flight Deals from London

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles1 stopC$ 414
San Francisco
San Francisco1 stopC$ 437
San Diego
San Diego1 stopC$ 383
Palm Springs
Palm Springs2 stopsC$ 649
San Jose
San Jose2 stopsC$ 938
Los Angeles
Los Angeles1 stopC$ 414
San Francisco
San Francisco1 stopC$ 437
San Diego
San Diego1 stopC$ 383
Palm Springs
Palm Springs2 stopsC$ 649
San Jose
San Jose2 stopsC$ 938

Cheap Flights from London to California

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

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
Tue, 8 Sep - Tue, 15 Sep
WestJet Logo
6:10 a.m. - 12:25 p.m.
YXU
-
LAX
9h 15m
1 stop
WestJet Logo
6:05 p.m. - 5:20 a.m.
LAX
-
YXU
8h 15m
1 stop
C$ 414WestJet
Sat, 26 Sep - Sat, 3 Oct
WestJet Logo
6:10 a.m. - 6:20 p.m.
YXU
-
LAX
15h 10m
2 stops
WestJet Logo
6:05 p.m. - 5:20 a.m.
LAX
-
YXU
8h 15m
1 stop
C$ 424WestJet
Fri, 25 Sep - Tue, 29 Sep
Air Canada Logo
10:05 a.m. - 3:35 p.m.
YXU
-
LAX
8h 30m
1 stop
Air Canada Logo
10:35 p.m. - 9:20 a.m.
LAX
-
YXU
7h 45m
1 stop
C$ 507Air Canada
Thu, 24 Sep - Sat, 26 Sep
Air Canada Logo
3:30 p.m. - 8:55 p.m.
YXU
-
LAX
8h 25m
1 stop
Air Canada Logo
8:15 a.m. - 9:40 p.m.
LAX
-
YXU
10h 25m
2 stops
C$ 511Air Canada
Thu, 10 Sep - Mon, 14 Sep
Air Canada Logo
5:40 a.m. - 3:21 p.m.
YXU
-
SFO
12h 41m
2 stops
Air Canada Logo
7:30 p.m. - 5:43 p.m.
SFO
-
YXU
19h 13m
2 stops
C$ 518Air 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
Mon, 24 Aug - Mon, 31 Aug
United Airlines Logo
6:20 p.m. - 9:07 a.m.
YXU
-
SNA
17h 47m
3 stops
United Airlines Logo
3:10 p.m. - 2:50 p.m.
SNA
-
YXU
20h 40m
2 stops
C$ 552United Airlines
Tue, 29 Sep - Sat, 3 Oct
United Airlines Logo
5:40 a.m. - 3:32 p.m.
YXU
-
SNA
12h 52m
2 stops
United Airlines Logo
7:00 a.m. - 9:40 p.m.
SNA
-
YXU
11h 40m
2 stops
C$ 589United Airlines
Booking Insights

KAYAK's insights & trends for London to California flights

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

How much is a round-trip flight from London, Ontario to California?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from London, Ontario to California departing in September.

Flight prices are below average for this route right now.

Flights to California from London, Ontario usually cost between C$ 756 and C$ 962 in September.
The lowest price found in the past 5 days was C$ 414 on WestJet (8 Sep–15 Sep).

What is the cheapest month to fly from London to California?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to California, 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 London to California is July, when tickets cost C$ 546 (return) on average. On the other hand, the most expensive months are February and March, when the average cost of round-trip tickets is C$ 1,569 and C$ 1,135 respectively.

Good to know

Low season

February

Cheapest flight

C$ 225
Best time to beat the crowds but there is an average 75% increase in price.
Most popular time to fly and prices are also 31% lower on average.
Flight from London to Los Angeles

FAQs - booking California flights

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

    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 California.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to California is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to California?

    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 from London to California with an airline and back with another airline.

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

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

Reviews of the top 3 airlines flying from London to California

 
See real verified KAYAK customer reviews for airlines flying from London to California. 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 California? 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
7.1Entertainment
6.6Food
8.1Crew
7.7Boarding
7.3Comfort
Airline reviews

We boarded the plane and were about to take off when we were notified that the tires had to be checked. Upon inspection, they were found to need replacement, so the entire plane had to be deboarded. After we exited the plane, United staff forced us to stay in the gate area by posting "Do Not Exit" signs on the doors connecting the gate area to the terminal. Many of us had already rebooked our flights and had no checked bags, but they told us we could not leave. This seemed inappropriate to hold people under false pretenses. When the agent told us we could leave, I asked them to please take down the "Do Not Exit" signs, as they were misleading. The agent refused, and I told them that it didn't feel right to hold people like that.

2.0 MediocreAnonymous, Jul 2026
YVR - SFO
Read more United Airlines reviews

We boarded the plane and were about to take off when we were notified that the tires had to be checked. Upon inspection, they were found to need replacement, so the entire plane had to be deboarded. After we exited the plane, United staff forced us to stay in the gate area by posting "Do Not Exit" signs on the doors connecting the gate area to the terminal. Many of us had already rebooked our flights and had no checked bags, but they told us we could not leave. This seemed inappropriate to hold people under false pretenses. When the agent told us we could leave, I asked them to please take down the "Do Not Exit" signs, as they were misleading. The agent refused, and I told them that it didn't feel right to hold people like that.

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 ..

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

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

headphone jack didnt work for the first flight and not much variety

Connection coordination with Star Alliance partner could be better. Lots of check in setup was not interlinked between operators.

The seat is too hard and my back and bottom are having servers pain

There was no lounge for passengers waiting before boarding the aircraft at F65, so passengers are just sitting on the floor or just spread everywhere the premises before boarding.

The food was terrible and they lost my luggage which created a lot of issues.

I loved the fact it was on time and it was a smooth flight to my destination.

No dogs! Can we have no dogs in the cabin? Why was there a yappy little dog behind me? Lucky I had ear plugs. Sorry for others without

The staff at the airport and on the plane were wonderful I especially wanna acknowledge the staff who boarded us at the Calgary airport. The women who helped us board at the airport were incredible… they were so kind and sweet…I very happy with WestJet and I am hoping I can fly more often to Canada.

Absolutely terrible, from the customer service to boarding the plane. On the phone, there was some mishaps with getting in my correct date and they did not help me retrieve a refund or any assistance. I’m gonna be reporting to all my followers and family around the region of Los Angeles to New York.

Arrival at Comox from, London,ON 6 hours later... No bueano

Flight delayed, missed my pick-up had to Uber, plus missed dinner and medication, so sad!

Nothing to like because my inbound flight was cancelled without notification by West Jet or third party, JustFly. I couldn’t take the inbound flight due to cancellation; therefore could not take the outbound flight back.

It took 30 minutes to check in with the Westjet rep. They didn’t have enough seats and she needed to make a call… I am always “randomly” selected to be checked at security. Their “randomly “ selection system may need some updating. They treat people like criminals. It is not appropriate behavior.

Very good over all , would have been nice to have entertainment on the flight

I booked through westjet. The first flight left late and cost us the connection to the second flight. The second flight after a 4 hour delay was again late because they were short an attendant. Then a door malfunctioned on the plane which led to yet another plane. So by the time we left Calgary we missed the BC ferry and had to pay a charge to get a later one. It ended up being a 24 hour day. That wrecked our first day and part of the second day in BC because we were so overtired.

Horrible! Rude flight attendant, barely any service on such a long flight. I wouldn't recommend Air Canada to anyone.

Smooth ride but I wish they have better food selections.

Aircraft is designed with all 3 washrooms at the back of the plane, meaning that when there is service underway, there are no washrooms available and it gets very crowded at the back of the plane.

The flight was delayed, but not for weather. We landed over 3hrs later than planned.

The stag were helpful, kind and liked the passengers. The plane was pristinely clean! Great flight!

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

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

It might have been closer to being on time. Maybe next time I could fly from London to Toronto?

Air Canada canceled my flight last minute and I gave me next’s day night time my flight. No accommodations at all. I have a function on Xmas eve. So I had to took rental car last minute.i never ever book a ticket with Canadian airlines at all.

Everything you need to know for your flight from London to California

Information on your arrival and departure airports