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

Prices for flights from Belfast to California were last updated today.

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

There are 3 operators available for flights from Belfast to California as of April 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belfast 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.

£314 Cheap Flights from Belfast to California in 2026

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Find the cheapest flights from Belfast to California

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

13:45 - 00:39

BHD

SFO

18h 54m

2 stops

16:35 - 15:30

SFO

BHD

14h 55m

1 stop

£635British Airways

Tue, 22 Sep - Thu, 15 Oct

10:05 - 19:55

BHD

LAX

17h 50m

2 stops

20:55 - 18:45

LAX

BHD

13h 50m

1 stop

£641British Airways

Wed, 15 Jul - Wed, 22 Jul

13:45 - 13:50

BHD

SFO

32h 05m

1 stop

19:30 - 18:45

SFO

BHD

15h 15m

1 stop

£653British Airways

Tue, 22 Sep - Thu, 15 Oct

16:25 - 11:30

BHD

LAX

27h 05m

1 stop

17:05 - 15:20

LAX

BHD

14h 15m

1 stop

£660British Airways

Tue, 23 Jun - Tue, 30 Jun

16:25 - 13:50

BHD

SFO

29h 25m

1 stop

11:30 - 15:40

SFO

BHD

20h 10m

2 stops

£661American Airlines

Tue, 1 Sep - Wed, 23 Sep

09:40 - 20:18

BHD

SFO

18h 38m

2 stops

13:29 - 15:40

SFO

BHD

18h 11m

2 stops

£665American Airlines

Tue, 1 Sep - Wed, 23 Sep

10:20 - 21:25

BHD

SFO

19h 05m

1 stop

17:55 - 20:30

SFO

BHD

18h 35m

1 stop

£671Multiple Airlines

Tue, 19 May - Tue, 26 May

15:35 - 14:40

BFS

SFO

31h 05m

2 stops

16:45 - 21:45

SFO

BFS

21h 00m

2 stops

£671Multiple Airlines

Thu, 21 May - Thu, 28 May

09:35 - 22:49

BHD

LAS

21h 14m

2 stops

12:48 - 18:10

LAS

BHD

21h 22m

2 stops

£817Finnair

Sat, 8 Aug - Fri, 14 Aug

09:50 - 21:48

BHD

ONT

19h 58m

2 stops

17:24 - 16:55

ONT

BHD

15h 31m

2 stops

£2,003KLM

Tue, 23 Jun - Tue, 30 Jun

British Airways flights from Belfast to California

Our best British Airways deals on Belfast to California flight tickets

British Airways

22 Sept

BHD13:45Belfast City

18h 54m

2 stops

SFO00:39San Francisco

15 Oct

SFO16:35San Francisco

14h 55m

1 stop

BHD15:30Belfast City

£635

British Airways

15 Jul

BHD10:05Belfast City

17h 50m

2 stops

LAX19:55Los Angeles Los Angeles

22 Jul

LAX20:55Los Angeles Los Angeles

13h 50m

1 stop

BHD18:45Belfast City

£641

British Airways

22 Sept

BHD13:45Belfast City

32h 05m

1 stop

SFO13:50San Francisco

15 Oct

SFO19:30San Francisco

15h 15m

1 stop

BHD18:45Belfast City

£653

KLM flights from Belfast to California

Our best KLM deals on Belfast to California flight tickets

KLM

31 Aug

BHD17:30Belfast City

27h 20m

2 stops

SFO12:50San Francisco

24 Sept

SFO13:00San Francisco

19h 55m

2 stops

BHD16:55Belfast City

£706

KLM

31 Aug

BHD09:50Belfast City

33h 55m

1 stop

SFO11:45San Francisco

26 Sept

SFO13:05San Francisco

19h 50m

2 stops

BHD16:55Belfast City

£708

KLM

2 Sept

BHD09:50Belfast City

21h 17m

2 stops

SFO23:07San Francisco

26 Sept

SFO13:05San Francisco

19h 50m

2 stops

BHD16:55Belfast City

£712

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 22/9

13:45-00:39

2 stops18h 54m

San Francisco

Thu 15/10

16:35-15:30

1 stop14h 55m

£635

Fastest return journey

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Wed 15/7

10:05-19:55

2 stops17h 50m

Los Angeles Los Angeles

Wed 22/7

20:55-18:45

1 stop13h 50m

£641

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 22/9

13:45-13:50

1 stop32h 05m

San Francisco

Thu 15/10

19:30-18:45

1 stop15h 15m

£653

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Tue 23/6

16:25-11:30

1 stop27h 05m

Los Angeles Los Angeles

Tue 30/6

17:05-15:20

1 stop14h 15m

£660

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 1/9

16:25-13:50

1 stop29h 25m

San Francisco

Wed 23/9

11:30-15:40

2 stops20h 10m

£661

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 1/9

09:40-20:18

2 stops18h 38m

San Francisco

Wed 23/9

13:29-15:40

2 stops18h 11m

£665

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 19/5

10:20-21:25

1 stop19h 05m

San Francisco

Tue 26/5

17:55-20:30

1 stop18h 35m

£671

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 21/5

15:35-14:40

2 stops31h 05m

San Francisco

Thu 28/5

16:45-21:45

2 stops21h 00m

£671

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Sat 8/8

09:35-22:49

2 stops21h 14m

Las Vegas Harry Reid Intl

Fri 14/8

12:48-18:10

2 stops21h 22m

£817

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Tue 23/6

09:50-21:48

2 stops19h 58m

Ontario

Tue 30/6

17:24-16:55

2 stops15h 31m

£2,003

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Belfast 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

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

British Airways and American Airlines are the most popular carriers operating from Belfast to California

Which airlines fly to California?

British Airways, American Airlines and KLM are the top three most popular airlines that fly to California from Belfast according to our data. British Airways is the first choice among our users, with 87% of people opting to fly with this airline when travelling to California. Keep in mind that there are 3 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.

Cheap Belfast to California flight deals and tips

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

Fastest flight time	14h 40m
Direct flights	None

The fastest flight from Belfast to California takes 14h 40m

There are no direct flights from Belfast to California. There are no popular flight routes from Belfast to California.

Search flight deals

Frequently asked questions about flying from Belfast to California

When did momondo last update prices for flights from Belfast to California?
Prices for flights from Belfast to California were last updated today.
How many operators does momondo search for flights from Belfast to California?
There are 3 operators available for flights from Belfast to California as of April 2026.
How old do you have to be to fly from Belfast to California?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belfast 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.

Best airlines flying from Belfast to California

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £385	Free Cancellation	Rating 6.7 7,914 reviews	Search British Airways flights
American Airlines	PriceFrom £470	Free Cancellation	Rating 7.1 11,677 reviews	Search American Airlines flights
KLM	PriceFrom £503	Free Cancellation	Rating 7.8 1,509 reviews	Search KLM flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to California . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to California from Belfast with this policy.

How can momondo help me find flights from Belfast 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 Belfast to California.

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

Price alerts on flights to California from Belfast are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.