How long is the flight from California to United Kingdom?

The flight from California to United Kingdom depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from San Francisco (a popular airport in California) to London Heathrow Airport (the most popular airport in United Kingdom), then the flight time is 10h 15m on average. If you fly from Los Angeles (another popular airport in California) to London Heathrow Airport, then the average flight time is 10h 20m.

What is the cheapest airline that flies from California to United Kingdom?

A.P.G., LEVEL, and Finnair are the most popular carriers operating from California to United Kingdom

What airlines fly to United Kingdom?

British Airways, United Airlines and Virgin Atlantic are the top three most popular airlines that fly to United Kingdom from California according to our data. British Airways is the first choice among our users, with 46% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 22 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

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

As of March 2026, 242 flights take off from California and land in United Kingdom each week. The most common flight departure day for this route is Wed, with 34% of weekly flights taking off on this day.

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

As of March 2026, there are 34 flights per day flying from California to United Kingdom. The most common time of day flights depart is 6:00PM, with 74% of flights taking off in the evening.

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

Prices for flights from California to United Kingdom are updated daily.

How many operators does momondo search for flights from California to United Kingdom?

As of March 2026, there are 21 operators available to choose from for flights from California to United Kingdom.

How old do you have to be to fly from California to United Kingdom?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The required travel and health documents for your United Kingdom trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$334 Cheap Flights from California to the United Kingdom in 2026

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Find the cheapest flights from California to the United Kingdom

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:45 pm - 12:45 pm

LAX

LHR

36h 00m

1 stop

4:35 pm - 2:35 pm

LHR

LAX

30h 00m

1 stop

$635TAP AIR PORTUGAL

Tue, Apr 14 - Thu, Apr 30

4:45 pm - 9:45 am

LAX

LGW

33h 00m

1 stop

9:20 pm - 2:35 pm

LGW

LAX

25h 15m

2 stops

$638TAP AIR PORTUGAL

Tue, Apr 14 - Thu, May 14

4:30 pm - 10:55 am

LAX

LGW

10h 25mnonstop

10:20 am - 1:35 pm

LGW

LAX

11h 15mnonstop

$642Norse Atlantic UK

Sun, Aug 16 - Sun, Aug 23

4:30 pm - 10:55 am

LAX

LGW

10h 25mnonstop

10:05 am - 1:20 pm

LGW

LAX

11h 15mnonstop

$643Norse Atlantic UK

Sat, Sep 12 - Sat, Sep 19

4:45 pm - 6:30 pm

SFO

LHR

17h 45m

1 stop

6:40 am - 2:40 pm

LHR

SFO

16h 00m

1 stop

$643Scandinavian Airlines

Mon, May 11 - Tue, May 19

4:30 pm - 10:55 am

LAX

LGW

10h 25mnonstop

9:25 am - 4:30 pm

LGW

LAX

15h 05m

1 stop

$644Multiple Airlines

Fri, Aug 14 - Fri, Sep 18

4:45 pm - 4:00 pm

SFO

LHR

15h 15m

1 stop

6:40 am - 2:40 pm

LHR

SFO

16h 00m

1 stop

$646Scandinavian Airlines

Mon, May 11 - Fri, May 15

4:30 pm - 10:55 am

LAX

LGW

10h 25mnonstop

9:25 am - 4:30 pm

LGW

LAX

15h 05m

1 stop

$650Multiple Airlines

Mon, Sep 21 - Mon, Oct 5

6:45 pm - 9:55 am

SFO

STN

31h 10m

1 stop

5:45 pm - 4:40 pm

STN

SFO

30h 55m

1 stop

$726Turkish Airlines

Mon, Apr 13 - Wed, Apr 22

6:45 pm - 10:10 pm

SFO

STN

19h 25m

1 stop

5:35 pm - 4:40 pm

STN

SFO

31h 05m

1 stop

$727Turkish Airlines

Wed, Apr 15 - Thu, Apr 23

Scandinavian Airlines flights from California to United Kingdom

Our best Scandinavian Airlines deals on California to United Kingdom flight tickets

Scandinavian Airlines

May 11

SFO4:45 pmSan Francisco

17h 45m

1 stop

LHR6:30 pmLondon Heathrow

May 19

LHR6:40 amLondon Heathrow

16h 00m

1 stop

SFO2:40 pmSan Francisco

$643

Scandinavian Airlines

May 11

SFO4:45 pmSan Francisco

15h 15m

1 stop

LHR4:00 pmLondon Heathrow

May 15

LHR6:40 amLondon Heathrow

16h 00m

1 stop

SFO2:40 pmSan Francisco

$646

Scandinavian Airlines

Apr 13

SFO4:45 pmSan Francisco

40h 15m

2 stops

LHR5:00 pmLondon Heathrow

Apr 16

LHR5:00 pmLondon Heathrow

29h 40m

1 stop

SFO2:40 pmSan Francisco

$648

Virgin Atlantic flights from California to United Kingdom

Our best Virgin Atlantic deals on California to United Kingdom flight tickets

Virgin Atlantic

Jun 3

SFO6:20 pmSan Francisco

15h 15m

1 stop

LHR5:35 pmLondon Heathrow

Jun 18

LHR6:30 amLondon Heathrow

13h 15m

1 stop

SFO11:45 amSan Francisco

$712

Virgin Atlantic

May 6

SAN1:23 pmSan Diego

14h 42m

1 stop

LHR12:05 pmLondon Heathrow

May 13

LHR11:45 amLondon Heathrow

32h 05m

1 stop

SAN11:50 amSan Diego

$817

Virgin Atlantic

Mar 29

SFO1:45 pmSan Francisco

18h 55m

1 stop

LCY4:40 pmLondon City

Apr 14

LCY8:15 pmLondon City

23h 30m

1 stop

SFO11:45 amSan Francisco

$818

momondo Fare Finder

Use the filters below to find and compare flights from California to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 4/14

4:45 pm-12:45 pm

1 stop36h 00m

London Heathrow

Thu 4/30

4:35 pm-2:35 pm

1 stop30h 00m

$635

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Tue 4/14

4:45 pm-9:45 am

1 stop33h 00m

London Gatwick

Thu 5/14

9:20 pm-2:35 pm

2 stops25h 15m

$638

Quickest round-trip

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Sun 8/16

4:30 pm-10:55 am

Nonstop10h 25m

London Gatwick

Sun 8/23

10:20 am-1:35 pm

Nonstop11h 15m

$642

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Sat 9/12

4:30 pm-10:55 am

Nonstop10h 25m

London Gatwick

Sat 9/19

10:05 am-1:20 pm

Nonstop11h 15m

$643

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 5/11

4:45 pm-6:30 pm

1 stop17h 45m

London Heathrow

Tue 5/19

6:40 am-2:40 pm

1 stop16h 00m

$643

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Fri 8/14

4:30 pm-10:55 am

Nonstop10h 25m

London Gatwick

Fri 9/18

9:25 am-4:30 pm

1 stop15h 05m

$644

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 5/11

4:45 pm-4:00 pm

1 stop15h 15m

London Heathrow

Fri 5/15

6:40 am-2:40 pm

1 stop16h 00m

$646

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Mon 9/21

4:30 pm-10:55 am

Nonstop10h 25m

London Gatwick

Mon 10/5

9:25 am-4:30 pm

1 stop15h 05m

$650

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 4/13

6:45 pm-9:55 am

1 stop31h 10m

London Stansted

Wed 4/22

5:45 pm-4:40 pm

1 stop30h 55m

$726

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Wed 4/15

6:45 pm-10:10 pm

1 stop19h 25m

London Stansted

Thu 4/23

5:35 pm-4:40 pm

1 stop31h 05m

$727

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 California to United Kingdom

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 United Kingdom?

In general, September is the cheapest month to fly from California to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $587. If you aren’t able to travel to United Kingdom during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $597.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from California to United Kingdom is on a Wednesday when prices can be found for as low as $740. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $837.

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

According to our data, the cheapest time of day to fly to United Kingdom is at noon. momondo users have found flights departing from California to United Kingdom at noon for as low as $743. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly in the evening, with an average ticket price of $803. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest California to United Kingdom flight route?

Fly from Los Angeles to London Gatwick for the best California - United Kingdom flight prices

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from California when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $766 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from California for as low as $709 on momondo.

What cabin class options are available on California to United Kingdom flights?

There are 4 cabin classes available to choose from on California to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

When did momondo last update prices for flights from California to United Kingdom?
Prices for flights from California to United Kingdom are updated daily.
How many operators does momondo search for flights from California to United Kingdom?
As of March 2026, there are 21 operators available to choose from for flights from California to United Kingdom.
How old do you have to be to fly from California to United Kingdom?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The required travel and health documents for your United Kingdom trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from California to United Kingdom?
momondo data reveals that the most frequently booked plane model on the route from California to United Kingdom is Boeing 787-9 Dreamliner, representing 23.32% of all bookings. The subsequent popular models are Airbus A350-1000 at 16.25%, Boeing 777 at 14.71%, and Boeing 777-300ER at 14.68%.

Best airlines flying from California to United Kingdom

Compare and see reviews for airlines that fly from California to United Kingdom with momondo

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $151	Free Cancellation	Rating 7.2 2,906 reviews	Search JetBlue flights
Brussels Airlines	PriceFrom $291	Free Cancellation	Rating 7.2 395 reviews	Search Brussels Airlines flights
SWISS	PriceFrom $300	Free Cancellation	Rating 7.5 1,905 reviews	Search SWISS flights
Norse Atlantic UK	PriceFrom $343	Free Cancellation	Rating 7.3 53 reviews	Search Norse Atlantic UK flights
TAP AIR PORTUGAL	PriceFrom $373	Free Cancellation	Rating 7.1 2,182 reviews	Search TAP AIR PORTUGAL flights
Delta	PriceFrom $410	Free Cancellation	Rating 7.9 8,336 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $454	Free Cancellation	Rating 7.3 1,725 reviews	Search Scandinavian Airlines flights
Aer Lingus	PriceFrom $474	Free Cancellation	Rating 7.2 1,489 reviews	Search Aer Lingus flights
Austrian Airlines	PriceFrom $484	Free Cancellation	Rating 7.6 902 reviews	Search Austrian Airlines flights
Finnair	PriceFrom $486	Free Cancellation	Rating 7.7 1,374 reviews	Search Finnair flights

Why use momondo?

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

Finding the right flight to United Kingdom from California is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United Kingdom quick and easy, saving you time and money.

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

Yes. All flights to United Kingdom from California on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from California to United Kingdom?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to United Kingdom from California.

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

Yes momondo offers price alerts on flights to United Kingdom from California. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.