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

Aer Lingus and British Airways are the most popular carriers operating 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 is 1 operator available for flights from Belfast to California as of October 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.

£359 Cheap Flights from Belfast to California in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Belfast to California

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

06:30 - 14:55BHD Belfast City-SFO San Francisco

16h 25m1 stop London Heathrow

12:00 - 12:45SFO San Francisco-BHD Belfast City

16h 45m2 stops Los Angeles London Heathrow

£671Iberia

Thu, 26 Nov - Thu, 3 Dec

06:30 - 14:55BHD Belfast City-SFO San Francisco

16h 25m1 stop London Heathrow

17:25 - 16:55SFO San Francisco-BHD Belfast City

15h 30m1 stop London Heathrow

£671Iberia

Thu, 26 Nov - Thu, 3 Dec

06:30 - 09:00BHD Belfast City-SFO San Francisco

34h 30m2 stops London Heathrow Dallas/Fort Worth

12:00 - 12:45SFO San Francisco-BHD Belfast City

16h 45m2 stops Los Angeles London Heathrow

£675Iberia

Thu, 26 Nov - Thu, 3 Dec

06:35 - 14:55BHD Belfast City-SFO San Francisco

16h 20m1 stop London Heathrow

17:25 - 16:55SFO San Francisco-BHD Belfast City

15h 30m1 stop London Heathrow

£675British Airways

Wed, 25 Nov - Wed, 2 Dec

14:20 - 16:30BHD Belfast City-SFO San Francisco

34h 10m2 stops London Gatwick Zurich

14:45 - 09:10SFO San Francisco-BHD Belfast City

34h 25m3 stops Vancouver Intl London Heathrow Amsterdam Schiphol

£681Multiple Airlines

Wed, 25 Nov - Wed, 2 Dec

08:40 - 15:10BHD Belfast City-LAX Los Angeles

14h 30m1 stop London Heathrow

18:25 - 16:55LAX Los Angeles-BHD Belfast City

14h 30m1 stop London Heathrow

£681British Airways

Wed, 11 Nov - Wed, 2 Dec

06:35 - 14:55BHD Belfast City-SFO San Francisco

16h 20m1 stop London Heathrow

13:54 - 14:35SFO San Francisco-BHD Belfast City

16h 41m2 stops Chicago O'Hare Intl London Heathrow

£681British Airways

Wed, 25 Nov - Wed, 2 Dec

08:40 - 15:10BHD Belfast City-LAX Los Angeles

14h 30m1 stop London Heathrow

18:25 - 16:55LAX Los Angeles-BHD Belfast City

14h 30m1 stop London Heathrow

£683British Airways

Wed, 11 Nov - Wed, 2 Dec

06:30 - 13:25BHD Belfast City-LAX Los Angeles

14h 55m1 stop London Heathrow

20:40 - 20:20LAX Los Angeles-BHD Belfast City

15h 40m1 stop London Heathrow

£687British Airways

Thu, 14 Jan - Thu, 21 Jan

17:15 - 11:45BHD Belfast City-LAX Los Angeles

26h 30m1 stop Amsterdam Schiphol

13:50 - 16:35LAX Los Angeles-BHD Belfast City

18h 45m1 stop Amsterdam Schiphol

£688KLM

Wed, 11 Nov - Thu, 3 Dec

Cheap last-minute flights

Enter your travel dates to find the best prices.

11:40 - 18:35BHD Belfast City-LAX Los Angeles

14h 55m1 stop London Heathrow

18:00 - 16:45LAX Los Angeles-BHD Belfast City

14h 45m1 stop London Heathrow

£827British Airways

Wed, 4 Nov - Tue, 10 Nov

11:40 - 18:35BHD Belfast City-LAX Los Angeles

14h 55m1 stop London Heathrow

16:46 - 16:45LAX Los Angeles-BHD Belfast City

15h 59m2 stops Phoenix Sky Harbor Intl London Heathrow

£827British Airways

Wed, 4 Nov - Tue, 10 Nov

08:40 - 19:55BHD Belfast City-LAX Los Angeles

19h 15m2 stops London Heathrow New York John F Kennedy Intl

10:23 - 10:50LAX Los Angeles-BHD Belfast City

16h 27m2 stops New York John F Kennedy Intl London Heathrow

£857British Airways

Wed, 4 Nov - Tue, 10 Nov

17:15 - 11:45BHD Belfast City-SFO San Francisco

26h 30m1 stop Amsterdam Schiphol

09:58 - 16:35SFO San Francisco-BHD Belfast City

22h 37m2 stops Los Angeles Amsterdam Schiphol

£936Delta

Tue, 3 Nov - Thu, 19 Nov

09:40 - 22:38BHD Belfast City-SFO San Francisco

20h 58m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

09:58 - 16:35SFO San Francisco-BHD Belfast City

22h 37m2 stops Los Angeles Amsterdam Schiphol

£940Delta

Tue, 3 Nov - Thu, 19 Nov

17:15 - 11:45BHD Belfast City-SFO San Francisco

26h 30m1 stop Amsterdam Schiphol

13:50 - 16:35SFO San Francisco-BHD Belfast City

18h 45m1 stop Amsterdam Schiphol

£1,042Multiple Airlines

Tue, 3 Nov - Thu, 19 Nov

07:20 - 08:30BHD Belfast City-SFO San Francisco

33h 10m3 stops London Gatwick Toronto Pearson Intl Vancouver Intl

09:09 - 21:10SFO San Francisco-BHD Belfast City

28h 01m3 stops Los Angeles Amsterdam Schiphol Leeds/Bradford

£1,064Multiple Airlines

Tue, 3 Nov - Thu, 19 Nov

14:20 - 14:45BHD Belfast City-SFO San Francisco

32h 25m3 stops London Gatwick Porto Lisbon Humberto Delgado

14:45 - 19:35SFO San Francisco-BHD Belfast City

20h 50m2 stops Vancouver Intl London Heathrow

£1,103Multiple Airlines

Tue, 3 Nov - Thu, 19 Nov

15:20 - 15:15BHD Belfast City-LAX Los Angeles

31h 55m3 stops Edinburgh Turnhouse Dublin Lisbon Humberto Delgado

13:50 - 16:55LAX Los Angeles-BHD Belfast City

19h 05m2 stops Amsterdam Schiphol Glasgow Intl

£1,163Multiple Airlines

Wed, 4 Nov - Tue, 10 Nov

15:20 - 15:15BHD Belfast City-LAX Los Angeles

31h 55m3 stops Edinburgh Turnhouse Dublin Lisbon Humberto Delgado

07:15 - 18:00LAX Los Angeles-BHD Belfast City

26h 45m3 stops Vancouver Intl Frankfurt am Main Birmingham

£1,171Multiple Airlines

Wed, 4 Nov - Tue, 10 Nov

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KLM flights from Belfast to California

Our best KLM deals on Belfast to California flight tickets

KLM

11 Nov

BHD17:15Belfast City

26h 30m

1 stop

LAX11:45Los Angeles

3 Dec

LAX13:50Los Angeles

18h 45m

1 stop

BHD16:35Belfast City

£688

KLM

12 Nov

BHD17:15Belfast City

26h 30m

1 stop

LAX11:45Los Angeles

4 Dec

LAX13:50Los Angeles

18h 55m

1 stop

BHD16:45Belfast City

£703

KLM

11 Nov

BHD09:40Belfast City

23h 12m

2 stops

LAX00:52Los Angeles

4 Dec

LAX07:00Los Angeles

18h 10m

2 stops

BHD09:10Belfast City

£708

British Airways flights from Belfast to California

Our best British Airways deals on Belfast to California flight tickets

British Airways

25 Nov

BHD06:35Belfast City

16h 20m

1 stop

SFO14:55San Francisco

2 Dec

SFO17:25San Francisco

15h 30m

1 stop

BHD16:55Belfast City

£675

British Airways

11 Nov

BHD08:40Belfast City

14h 30m

1 stop

LAX15:10Los Angeles

2 Dec

LAX18:25Los Angeles

14h 30m

1 stop

BHD16:55Belfast City

£681

British Airways

11 Nov

BHD08:40Belfast City

14h 30m

1 stop

LAX15:10Los Angeles

2 Dec

LAX18:25Los Angeles

14h 30m

1 stop

BHD16:55Belfast City

£683

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 26/11

06:30-14:55

1 stop16h 25m

San Francisco

Thu 3/12

12:00-12:45

2 stops16h 45m

£671

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 26/11

06:30-14:55

1 stop16h 25m

San Francisco

Thu 3/12

17:25-16:55

1 stop15h 30m

£671

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 26/11

06:30-09:00

2 stops34h 30m

San Francisco

Thu 3/12

12:00-12:45

2 stops16h 45m

£675

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Wed 25/11

06:35-14:55

1 stop16h 20m

San Francisco

Wed 2/12

17:25-16:55

1 stop15h 30m

£675

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Wed 25/11

14:20-16:30

2 stops34h 10m

San Francisco

Wed 2/12

14:45-09:10

3 stops34h 25m

£681

Fastest return journey

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Wed 11/11

08:40-15:10

1 stop14h 30m

Los Angeles

Wed 2/12

18:25-16:55

1 stop14h 30m

£681

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Wed 25/11

06:35-14:55

1 stop16h 20m

San Francisco

Wed 2/12

13:54-14:35

2 stops16h 41m

£681

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Wed 11/11

08:40-15:10

1 stop14h 30m

Los Angeles

Wed 2/12

18:25-16:55

1 stop14h 30m

£683

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Thu 14/1

06:30-13:25

1 stop14h 55m

Los Angeles

Thu 21/1

20:40-20:20

1 stop15h 40m

£687

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Wed 11/11

17:15-11:45

1 stop26h 30m

Los Angeles

Thu 3/12

13:50-16:35

1 stop18h 45m

£688

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

Prices

Airlines

What is the cheapest month to fly to California?

If you are unable to visit California during the month of April, then departing from Belfast during the month February is also very affordable. Most momondo users find prices during this month for around £0.

Cheap Belfast to California flight deals and tips

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

Best price found	£359
Fastest flight time	14h 30m
Direct flights	None

The best one-way flight to California from Belfast in the past 72 hours is £359. The best return flight deal from Belfast to California found on momondo in the last 72 hours is £671.

The fastest flight from Belfast to California takes 14h 30m

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 is 1 operator available for flights from Belfast to California as of October 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 £459	Free Cancellation	Rating 6.7 8,275 reviews		Search British Airways 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.