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Cheap flights from California to London, ON from C$ 286

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YXU
29 Jun — 6 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from California to London

Enter your travel dates to find the best prices.

Cheapest flights from California to London
Explore the most affordable flight options available from California to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 May 2026.

Thu 8/106:00 a.m.
SFO
-
YXU
1 stop7h 45m
WestJet
Tue 13/106:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Deal found 26/5C$ 574
Mon 12/106:00 a.m.
SFO
-
YXU
1 stop7h 45m
WestJet
Wed 21/106:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Deal found 26/5C$ 581
Fri 9/103:30 p.m.
SAN
-
YXU
1 stop10h 50m
WestJet
Mon 12/106:10 a.m.
YXU
-
SAN
1 stop11h 00m
WestJet
Deal found 25/5C$ 629
Thu 8/103:30 p.m.
SAN
-
YXU
1 stop10h 50m
WestJet
Tue 13/106:10 a.m.
YXU
-
SAN
1 stop11h 00m
WestJet
Deal found 26/5C$ 662
Wed 26/86:05 p.m.
SFO
-
YXU
1 stop8h 15m
WestJet
Wed 23/96:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Deal found 25/5C$ 668
Mon 12/106:00 a.m.
SFO
-
YXU
1 stop7h 45m
WestJet
Wed 14/106:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Deal found 28/5C$ 681
Thu 8/103:30 p.m.
SAN
-
YXU
1 stop10h 50m
Multiple Airlines
Tue 13/106:10 a.m.
YXU
-
SAN
2 stops16h 27m
Multiple Airlines
Deal found 26/5C$ 702
Fri 9/107:35 p.m.
SFO
-
YXU
2 stops19h 10m
Air Canada
Tue 13/105:40 a.m.
YXU
-
SFO
1 stop7h 59m
Air Canada
Deal found 25/5C$ 741
Thu 8/1011:10 a.m.
SFO
-
YXU
2 stops19h 10m
Air Canada
Tue 13/105:40 a.m.
YXU
-
SFO
1 stop7h 59m
Air Canada
Deal found 25/5C$ 752
Wed 19/86:05 p.m.
SFO
-
YXU
1 stop8h 15m
WestJet
Mon 24/86:10 a.m.
YXU
-
SFO
1 stop8h 50m
WestJet
Deal found 28/5C$ 789
Fri 9/107:35 p.m.
SFO
-
YXU
2 stops19h 10m
Air Canada
Mon 12/103:30 p.m.
YXU
-
SFO
2 stops22h 47m
Air Canada
Deal found 25/5C$ 819
Fri 9/103:30 p.m.
SAN
-
YXU
1 stop10h 50m
Multiple Airlines
Tue 13/106:10 a.m.
YXU
-
SAN
2 stops13h 42m
Multiple Airlines
Deal found 25/5C$ 879

Find flight deals from California to London

Keep the following information in mind while searching for California to London flight deals. Data was last updated 30 May 2026.

Round-trip from

C$ 574

One-way from

C$ 286
WestJet
  • WestJet
  • 8/10-13/10
  • 2 total stops
  • 16h 35m total
  • California to London
Search Deals
WestJet
  • WestJet
  • 12/10
  • 1 total stop
  • 7h 45m total
  • California to London
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 30 May 2026.
Use the filters below to find and compare flights from California to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 8/10

6:00 a.m.-4:45 p.m.

1 stop7h 45m

London

Tue 13/10

6:10 a.m.-12:00 p.m.

1 stop8h 50m

C$ 574

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 8/10

3:30 p.m.-5:20 a.m.

1 stop10h 50m

London

Tue 13/10

6:10 a.m.-2:10 p.m.

1 stop11h 00m

C$ 662

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Wed 26/8

6:05 p.m.-5:20 a.m.

1 stop8h 15m

London

Wed 23/9

6:10 a.m.-12:00 p.m.

1 stop8h 50m

C$ 668

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 12/10

6:00 a.m.-4:45 p.m.

1 stop7h 45m

London

Wed 14/10

6:10 a.m.-12:00 p.m.

1 stop8h 50m

C$ 681

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 8/10

3:30 p.m.-5:20 a.m.

1 stop10h 50m

London

Tue 13/10

6:10 a.m.-7:37 p.m.

2 stops16h 27m

C$ 702

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 8/10

11:10 a.m.-9:20 a.m.

2 stops19h 10m

London

Tue 13/10

5:40 a.m.-10:39 a.m.

1 stop7h 59m

C$ 756

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 12/10

9:00 a.m.-5:20 a.m.

2 stops17h 20m

London

Wed 21/10

6:10 a.m.-12:00 p.m.

1 stop8h 50m

C$ 824

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Fri 9/10

3:30 p.m.-5:20 a.m.

1 stop10h 50m

London

Mon 12/10

6:10 a.m.-2:10 p.m.

1 stop11h 00m

C$ 870

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Mon 12/10

11:00 p.m.-9:20 a.m.

1 stop7h 20m

London

Wed 14/10

5:40 a.m.-3:21 p.m.

2 stops12h 41m

C$ 875

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Fri 9/10

3:30 p.m.-5:20 a.m.

1 stop10h 50m

London

Tue 13/10

6:10 a.m.-4:52 p.m.

2 stops13h 42m

C$ 879

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/5

Showing 1-10 of 43 resultsSorted by cheapest first
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Best time to book a flight from California to London

Have a flexible travel schedule? Discover the best time to fly to London from California with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from California to London
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from California to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to London from California?

    London (YXU) is the airport you will fly into if you book a flight from California to London. It is only a 8.6 km journey from London (YXU) to London’s city centre.

  • How long is the flight from California to London, Ontario?

    WestJet, Air Canada, and United Airlines can get you from California to London, Ontario in just under 7h 45m. Your travel time can differ by up to 11h 25m. The distance from California to London, Ontario is about 3508 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from California to London, Ontario?

    The most popular route from California to London, Ontario is San Francisco - London. You may also consider San Diego - London or San Jose - London.

  • Can I find deals for flights from California to London that include hotel bookings?

    Yes. In addition to deals on California to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from California to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to London.

  • Can I find deals for business class flights from California to London?

    Yes. Cheapflights offers flight deals from California to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Port Stanley
Grand Bend

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Yes, we can. To see specific flights from California to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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