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Cheap flights from California to the United Kingdom from $318

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to the United Kingdom departing on 11/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from California to the United Kingdom

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:00 pm - 10:00 am
LAX
-
LGW
27h 00m
1 stop
Multiple Airlines Logo
2:00 pm - 6:12 pm
LGW
-
LAX
36h 12m
1 stop
$667Multiple Airlines
Tue, Aug 4 - Mon, Aug 31
Scandinavian Airlines Logo
7:30 pm - 12:55 pm
LAX
-
LHR
33h 25m
2 stops
Scandinavian Airlines Logo
10:20 am - 5:00 pm
LHR
-
LAX
14h 40m
1 stop
$676Scandinavian Airlines
Thu, Nov 5 - Sun, Nov 8
Scandinavian Airlines Logo
7:30 pm - 9:35 am
LAX
-
LHR
30h 05m
2 stops
Scandinavian Airlines Logo
6:40 am - 5:00 pm
LHR
-
LAX
18h 20m
2 stops
$677Scandinavian Airlines
Sun, Nov 8 - Wed, Nov 11
British Airways Logo
3:45 pm - 10:15 am
LAX
-
LHR
10h 30mnonstop
British Airways Logo
3:05 pm - 6:25 pm
LHR
-
LAX
11h 20mnonstop
$702British Airways
Thu, Oct 8 - Wed, Oct 14
British Airways Logo
9:00 pm - 3:25 pm
LAX
-
LHR
10h 25mnonstop
British Airways Logo
10:05 am - 1:30 pm
LHR
-
LAX
11h 25mnonstop
$703British Airways
Mon, Oct 19 - Sun, Nov 1
SWISS Logo
11:15 am - 6:40 pm
LAX
-
LCY
23h 25m
2 stops
SWISS Logo
1:10 pm - 4:30 pm
LCY
-
LAX
35h 20m
1 stop
$777SWISS
Tue, Oct 6 - Thu, Oct 8
Aer Lingus Logo
5:40 pm - 5:20 pm
SFO
-
LHR
15h 40m
1 stop
Aer Lingus Logo
9:50 am - 3:55 pm
LHR
-
SFO
14h 05m
1 stop
$784Aer Lingus
Sun, Oct 4 - Sun, Oct 18
TAP AIR PORTUGAL Logo
4:30 pm - 8:25 pm
SFO
-
LGW
19h 55m
2 stops
TAP AIR PORTUGAL Logo
4:25 pm - 2:35 pm
LGW
-
SFO
30h 10m
1 stop
$786TAP AIR PORTUGAL
Mon, Aug 17 - Tue, Sep 22
TAP AIR PORTUGAL Logo
4:35 pm - 11:20 am
SFO
-
LGW
34h 45m
2 stops
TAP AIR PORTUGAL Logo
4:25 pm - 2:30 pm
LGW
-
SFO
30h 05m
1 stop
$787TAP AIR PORTUGAL
Wed, Sep 16 - Wed, Sep 23
SWISS Logo
7:35 pm - 5:25 pm
SFO
-
LCY
13h 50m
1 stop
SWISS Logo
7:05 pm - 4:30 pm
LCY
-
SFO
29h 25m
1 stop
$797SWISS
Sun, Oct 18 - Sun, Nov 1

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ITA Airways flights from California to United Kingdom

Our best ITA Airways deals on California to United Kingdom flight tickets
ITA Airways
Nov 10
LAX3:20 pmLos Angeles
19h 35m
2 stops
LCY6:55 pmLondon City
Nov 15
LCY1:45 pmLondon City
55h 45m
2 stops
LAX1:30 pmLos Angeles
$891
ITA Airways
Jul 12
SFO3:15 pmSan Francisco
16h 25m
1 stop
LHR3:40 pmLondon Heathrow
Sep 16
LHR4:30 pmLondon Heathrow
28h 45m
1 stop
SFO1:15 pmSan Francisco
$925
ITA Airways
Jul 14
SFO3:15 pmSan Francisco
19h 35m
2 stops
LCY6:50 pmLondon City
Sep 15
LCY7:25 pmLondon City
25h 50m
2 stops
SFO1:15 pmSan Francisco
$947

British Airways flights from California to United Kingdom

Our best British Airways deals on California to United Kingdom flight tickets
British Airways
Oct 1
LAX5:05 pmLos Angeles
10h 30m
LHR11:35 amLondon Heathrow
Oct 5
LHR11:40 amLondon Heathrow
11h 15m
LAX2:55 pmLos Angeles
$733
British Airways
Jul 7
LAX5:05 pmLos Angeles
10h 30m
LHR11:35 amLondon Heathrow
Sep 18
LHR10:30 amLondon Heathrow
11h 20m
LAX1:50 pmLos Angeles
$802
British Airways
Dec 15
SFO8:35 pmSan Francisco
10h 35m
LHR3:10 pmLondon Heathrow
Dec 30
LHR11:45 amLondon Heathrow
11h 10m
SFO2:55 pmSan Francisco
$811

momondo Fare Finder

 
Customize your flight search to find flights from California to United Kingdom 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, momondo users made 832,500 searches. Data last updated July 4, 2026.
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 - LGW

LAXLGW

Los Angeles

Tue 8/4

11:00 pm-10:00 am

1 stop27h 00m

London Gatwick

Mon 8/31

2:00 pm-6:12 pm

1 stop36h 12m

$667

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 11/5

7:30 pm-12:55 pm

2 stops33h 25m

London Heathrow

Sun 11/8

10:20 am-5:00 pm

1 stop14h 40m

$676

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 11/8

7:30 pm-9:35 am

2 stops30h 05m

London Heathrow

Wed 11/11

6:40 am-5:00 pm

2 stops18h 20m

$677
Quickest round-trip

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 10/8

3:45 pm-10:15 am

Nonstop10h 30m

London Heathrow

Wed 10/14

3:05 pm-6:25 pm

Nonstop11h 20m

$702

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 10/19

9:00 pm-3:25 pm

Nonstop10h 25m

London Heathrow

Sun 11/1

10:05 am-1:30 pm

Nonstop11h 25m

$703

Los AngelesLondon

LAX - LCY

LAXLCY

Los Angeles

Tue 10/6

11:15 am-6:40 pm

2 stops23h 25m

London City

Thu 10/8

1:10 pm-4:30 pm

1 stop35h 20m

$777

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 10/4

5:40 pm-5:20 pm

1 stop15h 40m

London Heathrow

Sun 10/18

9:50 am-3:55 pm

1 stop14h 05m

$784

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 8/17

4:30 pm-8:25 pm

2 stops19h 55m

London Gatwick

Tue 9/22

4:25 pm-2:35 pm

1 stop30h 10m

$786

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Wed 9/16

4:35 pm-11:20 am

2 stops34h 45m

London Gatwick

Wed 9/23

4:25 pm-2:30 pm

1 stop30h 05m

$787

San FranciscoLondon

SFO - LCY

SFOLCY

San Francisco

Sun 10/18

7:35 pm-5:25 pm

1 stop13h 50m

London City

Sun 11/1

7:05 pm-4:30 pm

1 stop29h 25m

$797

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

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

What is the cheapest month to fly to United Kingdom?

In general, January 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 $709. If you aren’t able to travel to United Kingdom during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $713.

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 $792. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $935.

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 $655. 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 afternoon, with an average ticket price of $888. Departure times in the afternoon 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 from California to the 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 $884 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 $812 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.

Can stopping save me money on California to United Kingdom flights?

You could potentially save up to 53% on your flight if you consider stops on a California to United Kingdom flight.

Cheap California to United Kingdom flight deals and tips

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

Best Price Found

$287

Fastest flight time

2h 34m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from California in the past 72 hours is $287. The best round-trip flight deal from California to United Kingdom found on momondo in the last 72 hours is $679.
The fastest flight from California to United Kingdom takes 2h 34m
Direct flights go from California to United Kingdom every day.
There are 1,286 airports in United Kingdom. From California there are direct flights to London Heathrow (LHR).
Search flight deals

Frequently asked questions about flying from California to the United Kingdom

  • 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?

  • 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?

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
JetBluePriceFrom $151Free CancellationRating
7.1
3,010 reviews
Search JetBlue flights
Brussels AirlinesPriceFrom $291Free CancellationRating
7.2
420 reviews
Search Brussels Airlines flights
Norse Atlantic UKPriceFrom $333Free CancellationRating
7.2
55 reviews
Search Norse Atlantic UK flights
IberiaPriceFrom $400Free CancellationRating
7.0
3,250 reviews
Search Iberia flights
TAP AIR PORTUGALPriceFrom $426Free CancellationRating
7.2
2,313 reviews
Search TAP AIR PORTUGAL flights
Aer LingusPriceFrom $475Free CancellationRating
7.3
1,641 reviews
Search Aer Lingus flights
FinnairPriceFrom $480Free CancellationRating
7.6
1,420 reviews
Search Finnair flights
Alaska AirlinesPriceFrom $495Free CancellationRating
7.9
12,617 reviews
Search Alaska Airlines flights
Scandinavian AirlinesPriceFrom $498Free CancellationRating
7.4
1,864 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $513Free CancellationRating
7.8
8,454 reviews
Search Delta 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.

An easier way to manage your United Kingdom trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom $368
Flights to Manchesterfrom $473
Flights to Edinburghfrom $478
Flights to Glasgowfrom $487
Flights to Birminghamfrom $521
Flights to Newcastle upon Tynefrom $622
Flights to Belfastfrom $575
Flights to Bristolfrom $556
Flights to Invernessfrom $631
Flights to Liverpoolfrom $520
Flights to Leedsfrom $542
Flights to Aberdeenfrom $711