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Cheap flights from California to the United Kingdom from $216

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 12/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Lufthansa Logo
5:30 pm - 3:50 pmLAX-LHR
14h 20m1 stop
Lufthansa Logo
7:40 am - 3:15 pmLHR-LAX
15h 35m1 stop
$577Lufthansa
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Wed, Dec 3 - Sun, Dec 7
Multiple Airlines Logo
7:10 pm - 11:10 pmLAX-STN
20h 00m2 stops
Multiple Airlines Logo
6:25 am - 10:15 pmSTN-LAX
23h 50m2 stops
$577Multiple Airlines
Find Deal
Tue, Nov 18 - Sun, Nov 23
Scandinavian Airlines Logo
7:30 pm - 8:55 amLAX-LHR
29h 25m2 stops
Scandinavian Airlines Logo
6:40 am - 5:00 pmLHR-LAX
42h 20m2 stops
$579Scandinavian Airlines
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Sun, Jan 18 - Sun, Jan 25
TAP AIR PORTUGAL Logo
4:45 pm - 9:35 pmLAX-LHR
20h 50m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 2:40 pmLHR-LAX
16h 40m1 stop
$580TAP AIR PORTUGAL
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Thu, Jan 15 - Sat, Apr 25
American Airlines Logo
7:30 pm - 2:00 pmLAX-LHR
10h 30mnonstop
American Airlines Logo
10:20 am - 5:05 pmLHR-LAX
14h 45m1 stop
$582American Airlines
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Tue, Nov 18 - Tue, Nov 25
Scandinavian Airlines Logo
10:00 am - 4:00 pmLAX-LHR
22h 00m2 stops
Scandinavian Airlines Logo
7:50 pm - 6:50 pmLHR-LAX
31h 00m2 stops
$583Scandinavian Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
TAP AIR PORTUGAL Logo
4:35 pm - 3:45 pmSFO-LGW
15h 10m1 stop
TAP AIR PORTUGAL Logo
9:25 pm - 2:35 pmLGW-SFO
25h 10m2 stops
$585TAP AIR PORTUGAL
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Mon, Dec 1 - Sun, Dec 7
Virgin Atlantic Logo
6:40 am - 12:50 pmONT-LHR
22h 10m1 stop
Virgin Atlantic Logo
2:45 pm - 10:47 pmLHR-ONT
16h 02m1 stop
$585Virgin Atlantic
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Tue, Dec 2 - Tue, Dec 16
Virgin Atlantic Logo
6:00 am - 10:00 amONT-LHR
20h 00m1 stop
Virgin Atlantic Logo
10:45 am - 11:58 pmLHR-ONT
21h 13m1 stop
$587Virgin Atlantic
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Tue, Dec 2 - Tue, Dec 16
American Airlines Logo
6:15 am - 7:30 amLAX-LGW
17h 15m2 stops
American Airlines Logo
11:20 am - 12:54 amLGW-LAX
21h 34m2 stops
$610American Airlines
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Tue, Dec 2 - Tue, Dec 9

KLM flights from California to United Kingdom

Our best KLM deals on California to United Kingdom flight tickets
KLM
Feb 3
SFO1:20 pmSan Francisco
12h 40m
1 stop
LHR10:00 amLondon Heathrow
Feb 13
LHR6:30 amLondon Heathrow
13h 20m
1 stop
SFO11:50 amSan Francisco
$589
Find similar
KLM
Dec 3
LAX2:15 pmLos Angeles
13h 25m
1 stop
LHR11:40 amLondon Heathrow
Dec 7
LHR6:30 amLondon Heathrow
13h 15m
1 stop
LAX11:45 amLos Angeles
$599
Find similar
KLM
Nov 12
LAX11:37 amLos Angeles
13h 08m
1 stop
LHR8:45 amLondon Heathrow
Nov 18
LHR1:00 pmLondon Heathrow
15h 39m
1 stop
LAX8:39 pmLos Angeles
$626
Find similar

Finnair flights from California to United Kingdom

Our best Finnair deals on California to United Kingdom flight tickets
Finnair
Dec 6
LAX5:30 pmLos Angeles
10h 50m
LHR12:20 pmLondon Heathrow
Dec 16
LHR7:30 amLondon Heathrow
17h 35m
1 stop
LAX5:05 pmLos Angeles
$593
Find similar
Finnair
Jan 14
LAX5:30 pmLos Angeles
10h 35m
LHR12:05 pmLondon Heathrow
Jan 18
LHR10:20 amLondon Heathrow
14h 45m
1 stop
LAX5:05 pmLos Angeles
$596
Find similar
Finnair
Feb 11
LAX9:00 pmLos Angeles
10h 30m
LHR3:30 pmLondon Heathrow
Feb 22
LHR10:20 amLondon Heathrow
14h 45m
1 stop
LAX5:05 pmLos Angeles
$600
Find similar

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 November 5, 2025.
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

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 12/3

5:30 pm-3:50 pm

1 stop14h 20m

London Heathrow

Sun 12/7

7:40 am-3:15 pm

1 stop15h 35m

$577

Los AngelesLondon

LAX - STN

LAXSTN

Los Angeles

Tue 11/18

7:10 pm-11:10 pm

2 stops20h 00m

London Stansted

Sun 11/23

6:25 am-10:15 pm

2 stops23h 50m

$577

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 1/18

7:30 pm-8:55 am

2 stops29h 25m

London Heathrow

Sun 1/25

6:40 am-5:00 pm

2 stops42h 20m

$579

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 1/15

4:45 pm-9:35 pm

1 stop20h 50m

London Heathrow

Sat 4/25

6:00 am-2:40 pm

1 stop16h 40m

$580

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 11/18

7:30 pm-2:00 pm

Nonstop10h 30m

London Heathrow

Tue 11/25

10:20 am-5:05 pm

1 stop14h 45m

$582

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 12/8

10:00 am-4:00 pm

2 stops22h 00m

London Heathrow

Mon 12/15

7:50 pm-6:50 pm

2 stops31h 00m

$583

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 12/1

4:35 pm-3:45 pm

1 stop15h 10m

London Gatwick

Sun 12/7

9:25 pm-2:35 pm

2 stops25h 10m

$585

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Tue 12/2

6:40 am-12:50 pm

1 stop22h 10m

London Heathrow

Tue 12/16

2:45 pm-10:47 pm

1 stop16h 02m

$585

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Tue 12/2

6:00 am-10:00 am

1 stop20h 00m

London Heathrow

Tue 12/16

10:45 am-11:58 pm

1 stop21h 13m

$587

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

Tue 12/2

6:15 am-7:30 am

2 stops17h 15m

London Gatwick

Tue 12/9

11:20 am-12:54 am

2 stops21h 34m

$610

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, 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 $598. If you aren’t able to travel to United Kingdom during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $612.

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 $760. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $854.

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 $778. 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 $826. 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 $781 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 $726 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?

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

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

$222

Fastest flight time

10h 10m

Direct flights

Every day

Airports in United Kingdom

1 airport
The best one-way flight to United Kingdom from California in the past 72 hours is $222. The best round-trip flight deal from California to United Kingdom found on momondo in the last 72 hours is $639.
The fastest flight from California to United Kingdom takes 10h 10m
Direct flights go from California to United Kingdom every day.
There is 1 airport near United Kingdom: London Heathrow (LHR)
Search flight deals

  • 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
7.2
2,908 reviews
Search JetBlue flights
WestJetPriceFrom $272Free CancellationRating
7.2
3,153 reviews
Search WestJet flights
Scandinavian AirlinesPriceFrom $328Free CancellationRating
7.4
1,560 reviews
Search Scandinavian Airlines flights
SWISSPriceFrom $336Free CancellationRating
7.5
1,777 reviews
Search SWISS flights
Norse Atlantic UKPriceFrom $359Free CancellationRating
7.2
51 reviews
Search Norse Atlantic UK flights
TAP AIR PORTUGALPriceFrom $426Free CancellationRating
7.1
2,046 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom $427Free CancellationRating
6.8
7,553 reviews
Search Lufthansa flights
FinnairPriceFrom $465Free CancellationRating
7.6
1,335 reviews
Search Finnair flights
Aer LingusPriceFrom $476Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
Alaska AirlinesPriceFrom $494Free CancellationRating
8.0
11,241 reviews
Search Alaska Airlines 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 $320
Flights to Manchesterfrom $359
Flights to Edinburghfrom $406
Flights to Glasgowfrom $401
Flights to Birminghamfrom $404
Flights to Newcastle upon Tynefrom $464
Flights to Belfastfrom $509
Flights to Bristolfrom $431
Flights to Invernessfrom $418
Flights to Liverpoolfrom $460
Flights to Aberdeenfrom $501
Flights to Leedsfrom $504