What is the cheapest airline that flies from London to California?

Alaska Airlines, SWISS, and United Airlines are the most popular carriers operating from London to California

How many flights depart from London to California on average per day?

As of August 2026, there are 80 flights per day flying from London to California. The most common time of day flights depart is 10:00a.m., with 49% of flights taking off in the afternoon.

How many flights depart from London to California on average per week?

As of August 2026, there are 561 flights per week flying from London to California. The most common day of the week flights depart is Sat, with 17% of flights taking off on this day.

When did momondo last update prices for flights from London to California?

Prices for flights from London to California are updated daily.

How old do you have to be to fly from London to California?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to California.

What documentation or ID do you need to fly to California?

The necessary travel and health documents for your California trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

C$ 667 Cheap Flights from London to California in 2026

Find the cheapest flights from London to California

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 a.m. - 10:28 p.m.

LHR

SNA

21h 58m

2 stops

8:46 a.m. - 9:40 a.m.

SNA

LHR

16h 54m

1 stop

C$ 839United Airlines

Thu, 29 Oct - Mon, 2 Nov

7:30 a.m. - 2:02 p.m.

LHR

SNA

38h 32m

2 stops

6:45 a.m. - 5:55 a.m.

SNA

LHR

15h 10m

1 stop

C$ 841United Airlines

Fri, 11 Dec - Mon, 4 Jan

7:30 a.m. - 5:31 p.m.

LHR

SNA

18h 01m

2 stops

7:50 p.m. - 9:20 p.m.

SNA

LHR

17h 30m

2 stops

C$ 843United Airlines

Mon, 7 Dec - Mon, 7 Dec

7:30 a.m. - 10:28 p.m.

LHR

SNA

21h 58m

2 stops

8:00 a.m. - 10:25 a.m.

SNA

LHR

18h 25m

2 stops

C$ 846United Airlines

Thu, 29 Oct - Mon, 2 Nov

4:15 p.m. - 7:15 p.m.

LHR

SFO

11h 00mdirect

5:40 p.m. - 11:15 a.m.

SFO

LHR

10h 35mdirect

C$ 852Multiple Airlines

Mon, 19 Oct - Thu, 29 Oct

7:30 a.m. - 5:31 p.m.

LHR

SNA

18h 01m

2 stops

7:50 p.m. - 11:15 a.m.

SNA

LHR

31h 25m

1 stop

C$ 852United Airlines

Mon, 7 Dec - Mon, 7 Dec

6:20 a.m. - 10:03 p.m.

LHR

SFO

23h 43m

2 stops

10:38 a.m. - 10:40 a.m.

SFO

LHR

16h 02m

1 stop

C$ 853Delta

Sun, 15 Nov - Mon, 23 Nov

6:55 a.m. - 6:47 p.m.

LHR

SNA

19h 52m

2 stops

9:14 p.m. - 8:40 p.m.

SNA

LHR

15h 26m

1 stop

C$ 853United Airlines

Wed, 26 Aug - Wed, 2 Sep

7:40 a.m. - 3:50 p.m.

LHR

SFO

16h 10m

1 stop

10:31 a.m. - 7:40 a.m.

SFO

LHR

13h 09m

1 stop

C$ 855British Airways

Mon, 28 Sep - Sat, 3 Oct

1:00 p.m. - 4:00 p.m.

LHR

SFO

11h 00mdirect

7:45 p.m. - 2:10 p.m.

SFO

LHR

10h 25mdirect

C$ 856Multiple Airlines

Tue, 29 Sep - Tue, 29 Sep

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SWISS flights from London to California

Our best SWISS deals on London to California flight tickets

SWISS

3 Sep

LGW9:25 a.m.London Gatwick

15h 05m

1 stop

LAX4:30 p.m.Los Angeles

6 Oct

LAX7:35 p.m.Los Angeles

14h 15m

1 stop

LGW5:50 p.m.London Gatwick

C$ 860

SWISS

4 Sep

LGW9:25 a.m.London Gatwick

15h 05m

1 stop

LAX4:30 p.m.Los Angeles

6 Oct

LAX7:35 p.m.Los Angeles

14h 15m

1 stop

LGW5:50 p.m.London Gatwick

C$ 869

SWISS

14 Oct

LHR7:00 a.m.London Heathrow

17h 35m

2 stops

SFO4:35 p.m.San Francisco

19 Oct

SFO2:25 p.m.San Francisco

18h 10m

2 stops

LHR4:35 p.m.London Heathrow

C$ 870

TAP AIR PORTUGAL flights from London to California

Our best TAP AIR PORTUGAL deals on London to California flight tickets

TAP AIR PORTUGAL

2 Dec

LGW4:35 p.m.London Gatwick

30h 40m

1 stop

LAX3:15 p.m.Los Angeles

8 Dec

LAX5:15 p.m.Los Angeles

32h 35m

1 stop

LGW9:50 a.m.London Gatwick

C$ 862

TAP AIR PORTUGAL

2 Dec

LGW4:35 p.m.London Gatwick

30h 40m

1 stop

LAX3:15 p.m.Los Angeles

8 Dec

LAX5:15 p.m.Los Angeles

32h 35m

1 stop

LGW9:50 a.m.London Gatwick

C$ 863

TAP AIR PORTUGAL

2 Dec

LGW4:35 p.m.London Gatwick

30h 40m

1 stop

LAX3:15 p.m.Los Angeles

8 Dec

LAX5:15 p.m.Los Angeles

32h 35m

1 stop

LGW9:50 a.m.London Gatwick

C$ 870

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Thu 29/10

7:30 a.m.-10:28 p.m.

2 stops21h 58m

Santa Ana J. Wayne/Orange Cnty

Mon 2/11

8:46 a.m.-9:40 a.m.

1 stop16h 54m

C$ 839

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Fri 11/12

7:30 a.m.-2:02 p.m.

2 stops38h 32m

Santa Ana J. Wayne/Orange Cnty

Mon 4/1

6:45 a.m.-5:55 a.m.

1 stop15h 10m

C$ 841

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Mon 7/12

7:30 a.m.-5:31 p.m.

2 stops18h 01m

Santa Ana J. Wayne/Orange Cnty

Mon 7/12

7:50 p.m.-9:20 p.m.

2 stops17h 30m

C$ 843

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Thu 29/10

7:30 a.m.-10:28 p.m.

2 stops21h 58m

Santa Ana J. Wayne/Orange Cnty

Mon 2/11

8:00 a.m.-10:25 a.m.

2 stops18h 25m

C$ 846

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 19/10

4:15 p.m.-7:15 p.m.

Nonstop11h 00m

San Francisco

Thu 29/10

5:40 p.m.-11:15 a.m.

Nonstop10h 35m

C$ 852

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Mon 7/12

7:30 a.m.-5:31 p.m.

2 stops18h 01m

Santa Ana J. Wayne/Orange Cnty

Mon 7/12

7:50 p.m.-11:15 a.m.

1 stop31h 25m

C$ 852

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 15/11

6:20 a.m.-10:03 p.m.

2 stops23h 43m

San Francisco

Mon 23/11

10:38 a.m.-10:40 a.m.

1 stop16h 02m

C$ 853

LondonSanta Ana

LHR - SNA

LHRSNA

London Heathrow

Wed 26/8

6:55 a.m.-6:47 p.m.

2 stops19h 52m

Santa Ana J. Wayne/Orange Cnty

Wed 2/9

9:14 p.m.-8:40 p.m.

1 stop15h 26m

C$ 853

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 28/9

7:40 a.m.-3:50 p.m.

1 stop16h 10m

San Francisco

Sat 3/10

10:31 a.m.-7:40 a.m.

1 stop13h 09m

C$ 855

Quickest round-trip

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 29/9

1:00 p.m.-4:00 p.m.

Nonstop11h 00m

San Francisco

Tue 29/9

7:45 p.m.-2:10 p.m.

Nonstop10h 25m

C$ 856

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London to California

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to California?

The cheapest month to fly to California from London is in February. Flight prices, which tend to average around C$ 817, are often lower during this time because this is during the off-season. If you’re not able to fly to California in February, then September is your next best option. Flight prices from London to California during September average around C$ 845.

What is the cheapest day to depart on your flight to California?

According to our data, Thursday is the cheapest day to fly to California from London. The lowest ticket price found for a Thursday departure recently was C$ 1,113. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from London to California on a Wednesday will generally be more expensive and average around C$ 1,817. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to California?

Our data shows that the cheapest London to California flights are usually those with departure times in the afternoon. Our users have found flights to California in the afternoon for as low as C$ 1,011. Flights to California are more costly at noon, with an average ticket price of C$ 1,113. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest London to California flight route?

Fly from London Heathrow to Los Angeles for the best London - California flight prices

How far in advance should I book a flight from London to California?

You are more likely to see cheaper flights to California from London when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around C$ 942 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from London for as low as C$ 848 on momondo.

What cabin class options are available on London to California flights?

There are 2 cabin classes available to choose from on London to California flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to California flights?

No. A direct flight is the cheapest option for a flight between London to California.

Cheap London to California flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to California

Best price found	C$ 2,664
Fastest flight time	11h 05m
Direct flights	Every day
Airports in California	418 airports

The best one-way flight to California from London in the past 72 hours is C$ 2,664. The best round-trip flight deal from London to California found on momondo in the last 72 hours is C$ 1,224.

The fastest flight from London to California takes 11h 05m

Direct flights go from London to California every day.

There are 418 airports in California. From London there are direct flights to San Francisco (SFO).

Search flight deals

Frequently asked questions about flying from London to California

When did momondo last update prices for flights from London to California?
Prices for flights from London to California are updated daily.
How old do you have to be to fly from London to California?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to California.
What documentation or ID do you need to fly to California?
The necessary travel and health documents for your California trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to California?
Based on momondo bookings for flights between London and California, the leading plane model is Boeing 787-9 Dreamliner, making up 42.12% of the total bookings. Other popular models include Airbus A350-1000 with 19.87%, Airbus A380-800 with 14.52%, and Boeing 777 with 8.24%.

Why use momondo?

Why should I use momondo to find a flight deal from London to California?

It is quick and easy to find London to California flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to California that suits you.

Can I find flights from London to California with flexible booking policies on momondo?

All flight searches from London to California on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to California?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to California.

I’m not ready to book a flight from London to California right now. Can momondo alert me if prices change?

If you are simply researching potential flights to California, momondo offers a useful price alert feature which will track prices for flights to California from London and alert you when they change.