How long is the flight from California to Northern Ireland?

The average flight duration from California to Northern Ireland depends on which airport you fly into and out of. Flying from Los Angeles to Belfast Intl Airport is 13h 50m on average, while flying from San Francisco to Belfast Intl Airport is 15h 05m on average. Belfast Intl Airport is the most popular airport in Northern Ireland.

What is the cheapest airline that flies from California to Northern Ireland?

British Airways, Aer Lingus, and American Airlines are the most popular carriers operating from California to Northern Ireland

How old do you have to be to fly from California to Northern Ireland?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Northern Ireland.

What documentation or ID do you need to fly to Northern Ireland?

The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£226 Cheap Flights from California to Northern Ireland in 2026

Find the cheapest flights from California to Northern Ireland

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

20:50 - 18:50LAX Los Angeles-BHD Belfast City

14h 00m1 stop London Heathrow

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

14h 55m1 stop London Heathrow

£646British Airways

Sun, 7 Feb - Wed, 10 Feb

18:00 - 16:50LAX Los Angeles-BHD Belfast City

14h 50m1 stop London Heathrow

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

14h 55m1 stop London Heathrow

£648British Airways

Sun, 29 Nov - Sun, 6 Dec

20:35 - 20:10SFO San Francisco-BHD Belfast City

15h 35m1 stop London Heathrow

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

16h 25m1 stop London Heathrow

£651British Airways

Sun, 15 Nov - Thu, 19 Nov

16:35 - 15:40SFO San Francisco-BHD Belfast City

15h 05m1 stop London Heathrow

20:35 - 13:50BHD Belfast City-SFO San Francisco

25h 15m1 stop London Heathrow

£654British Airways

Wed, 16 Sep - Wed, 23 Sep

18:00 - 16:50LAX Los Angeles-BHD Belfast City

14h 50m1 stop London Heathrow

12:00 - 23:43BHD Belfast City-LAX Los Angeles

19h 43m2 stops London Heathrow Chicago O'Hare Intl

£656British Airways

Sun, 29 Nov - Sun, 6 Dec

15:15 - 16:50LAX Los Angeles-BHD Belfast City

17h 35m2 stops Las Vegas Harry Reid Intl London Heathrow

12:20 - 18:35BHD Belfast City-LAX Los Angeles

14h 15m1 stop London Heathrow

£659British Airways

Sun, 7 Feb - Wed, 10 Feb

18:00 - 18:40LAX Los Angeles-BHD Belfast City

16h 40m1 stop London Heathrow

20:00 - 13:25BHD Belfast City-LAX Los Angeles

25h 25m1 stop London Heathrow

£660British Airways

Tue, 1 Dec - Thu, 3 Dec

14:58 - 15:30SFO San Francisco-BHD Belfast City

16h 32m2 stops Chicago O'Hare Intl London Heathrow

11:35 - 17:30BHD Belfast City-SFO San Francisco

13h 55m1 stop London Heathrow

£662American Airlines

Mon, 14 Sep - Wed, 30 Sep

13:45 - 09:20SFO San Francisco-BHD Belfast City

35h 35m1 stop Amsterdam Schiphol

17:30 - 11:45BHD Belfast City-SFO San Francisco

26h 15m1 stop Amsterdam Schiphol

£666Virgin Atlantic

Mon, 14 Sep - Wed, 30 Sep

14:22 - 16:50ONT Ontario-BHD Belfast City

18h 28m2 stops Dallas/Fort Worth London Heathrow

11:40 - 22:45BHD Belfast City-ONT Ontario

19h 05m2 stops London Heathrow Dallas/Fort Worth

£666British Airways

Sun, 7 Feb - Wed, 10 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

08:15 - 16:55LAX Los Angeles-BHD Belfast City

24h 40m2 stops Minneapolis St Paul Amsterdam Schiphol

17:30 - 11:50BHD Belfast City-LAX Los Angeles

26h 20m1 stop Amsterdam Schiphol

£825Delta

Sun, 23 Aug - Mon, 31 Aug

16:43 - 19:25LAX Los Angeles-BHD Belfast City

18h 42m2 stops Phoenix Sky Harbor Intl London Heathrow

06:30 - 22:02BHD Belfast City-LAX Los Angeles

23h 32m2 stops London Heathrow Dallas/Fort Worth

£849British Airways

Mon, 24 Aug - Sun, 30 Aug

06:00 - 09:20LAX Los Angeles-BHD Belfast City

19h 20m2 stops New York John F Kennedy Intl Amsterdam Schiphol

17:30 - 14:45BHD Belfast City-LAX Los Angeles

29h 15m1 stop Amsterdam Schiphol

£862Delta

Sun, 23 Aug - Sat, 29 Aug

08:15 - 09:20LAX Los Angeles-BHD Belfast City

17h 05m2 stops Minneapolis St Paul Amsterdam Schiphol

09:50 - 20:33BHD Belfast City-LAX Los Angeles

18h 43m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

£868KLM

Mon, 24 Aug - Sun, 30 Aug

08:15 - 16:55LAX Los Angeles-BHD Belfast City

24h 40m2 stops Minneapolis St Paul Amsterdam Schiphol

09:50 - 23:53BHD Belfast City-LAX Los Angeles

22h 03m2 stops Amsterdam Schiphol Minneapolis St Paul

£869Delta

Sun, 23 Aug - Mon, 31 Aug

15:12 - 16:55LAX Los Angeles-BHD Belfast City

17h 43m2 stops Minneapolis St Paul Amsterdam Schiphol

09:50 - 22:00BHD Belfast City-LAX Los Angeles

20h 10m2 stops Amsterdam Schiphol Salt Lake City

£870KLM

Sun, 23 Aug - Sun, 30 Aug

13:06 - 16:55ONT Ontario-BHD Belfast City

19h 49m2 stops Salt Lake City Amsterdam Schiphol

09:50 - 23:34BHD Belfast City-ONT Ontario

21h 44m2 stops Amsterdam Schiphol Salt Lake City

£870Delta

Sun, 23 Aug - Sun, 30 Aug

18:05 - 18:45LAX Los Angeles-BHD Belfast City

16h 40m1 stop London Heathrow

06:30 - 18:20BHD Belfast City-LAX Los Angeles

19h 50m1 stop London Heathrow

£946British Airways

Mon, 24 Aug - Sun, 30 Aug

13:50 - 09:20LAX Los Angeles-BHD Belfast City

35h 30m1 stop Amsterdam Schiphol

09:50 - 11:50BHD Belfast City-LAX Los Angeles

34h 00m1 stop Amsterdam Schiphol

£962Delta

Mon, 24 Aug - Mon, 31 Aug

16:07 - 18:45ONT Ontario-BHD Belfast City

18h 38m2 stops Phoenix Sky Harbor Intl London Heathrow

11:10 - 21:55BHD Belfast City-ONT Ontario

18h 45m2 stops London City Phoenix Sky Harbor Intl

£980British Airways

Mon, 24 Aug - Sun, 30 Aug

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British Airways flights from California to Northern Ireland

Our best British Airways deals on California to Northern Ireland flight tickets

British Airways

7 Feb

LAX20:50Los Angeles

14h 00m

1 stop

BHD18:50Belfast City

10 Feb

BHD11:40Belfast City

14h 55m

1 stop

LAX18:35Los Angeles

£646

British Airways

29 Nov

LAX18:00Los Angeles

14h 50m

1 stop

BHD16:50Belfast City

6 Dec

BHD06:30Belfast City

14h 55m

1 stop

LAX13:25Los Angeles

£648

British Airways

15 Nov

SFO20:35San Francisco

15h 35m

1 stop

BHD20:10Belfast City

19 Nov

BHD06:30Belfast City

16h 25m

1 stop

SFO14:55San Francisco

£651

Aer Lingus flights from California to Northern Ireland

Our best Aer Lingus deals on California to Northern Ireland flight tickets

Aer Lingus

10 Oct

SFO17:40San Francisco

16h 05m

2 stops

BHD17:45Belfast City

13 Oct

BHD07:00Belfast City

16h 55m

2 stops

SFO15:55San Francisco

£883

Aer Lingus

21 Nov

SFO17:20San Francisco

31h 15m

2 stops

BHD08:35Belfast City

28 Nov

BHD06:35Belfast City

17h 00m

2 stops

SFO15:35San Francisco

£892

Aer Lingus

10 Oct

SFO17:40San Francisco

16h 05m

2 stops

BHD17:45Belfast City

12 Oct

BHD18:30Belfast City

29h 25m

2 stops

SFO15:55San Francisco

£907

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Sun 7/2

20:50-18:50

1 stop14h 00m

Belfast City

Wed 10/2

11:40-18:35

1 stop14h 55m

£646

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Sun 29/11

18:00-16:50

1 stop14h 50m

Belfast City

Sun 6/12

06:30-13:25

1 stop14h 55m

£648

San FranciscoBelfast

SFO San Francisco - BHD Belfast City

SFOBHD

San Francisco

Sun 15/11

20:35-20:10

1 stop15h 35m

Belfast City

Thu 19/11

06:30-14:55

1 stop16h 25m

£651

San FranciscoBelfast

SFO San Francisco - BHD Belfast City

SFOBHD

San Francisco

Wed 16/9

16:35-15:40

1 stop15h 05m

Belfast City

Wed 23/9

20:35-13:50

1 stop25h 15m

£654

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Sun 29/11

18:00-16:50

1 stop14h 50m

Belfast City

Sun 6/12

12:00-23:43

2 stops19h 43m

£656

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Sun 7/2

15:15-16:50

2 stops17h 35m

Belfast City

Wed 10/2

12:20-18:35

1 stop14h 15m

£658

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Tue 1/12

18:00-18:40

1 stop16h 40m

Belfast City

Thu 3/12

20:00-13:25

1 stop25h 25m

£660

San FranciscoBelfast

SFO San Francisco - BHD Belfast City

SFOBHD

San Francisco

Mon 14/9

14:58-15:30

2 stops16h 32m

Belfast City

Wed 30/9

11:35-17:30

1 stop13h 55m

£662

San FranciscoBelfast

SFO San Francisco - BHD Belfast City

SFOBHD

San Francisco

Mon 14/9

13:45-09:20

1 stop35h 35m

Belfast City

Wed 30/9

17:30-11:45

1 stop26h 15m

£666

OntarioBelfast

ONT Ontario - BHD Belfast City

ONTBHD

Ontario

Sun 7/2

14:22-16:50

2 stops18h 28m

Belfast City

Wed 10/2

11:40-22:45

2 stops19h 05m

£666

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 California to Northern Ireland

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 Northern Ireland?

In general, August is the cheapest month to fly from California to Northern Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £0. If you’re not able to fly to Northern Ireland in August, then January is your next best option. Flight prices from California to Northern Ireland during January average around £0.

Can stopping save me money on California to Northern Ireland flights?

You could potentially save up to 39% on your flight if you consider stops on a California to Northern Ireland flight.

Cheap California to Northern Ireland flight deals and tips

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

Best price found	£226
Fastest flight time	13h 50m
Direct flights	None

The best one-way flight to Northern Ireland from California in the past 72 hours is £226. The best return flight deal from California to Northern Ireland found on momondo in the last 72 hours is £646.

The fastest flight from California to Northern Ireland takes 13h 50m

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

Search flight deals

Frequently asked questions about flying from California to Northern Ireland

When did momondo last update prices for flights from California to Northern Ireland?
Prices for flights from California to Northern Ireland refresh daily.
How old do you have to be to fly from California to Northern Ireland?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

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

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

Yes. All flights to Northern Ireland 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 Northern Ireland?

Once you have performed a search for California to Northern Ireland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for California to Northern Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.