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Cheap flights from California to Northern Ireland from £212

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 Northern Ireland departing on 17/9. 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
0 bags
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Find the cheapest flights from California to Northern Ireland

Cheap return flights

Logo
16:30 - 07:40LAX-BFS
31h 10m1 stop
Logo
20:55 - 14:10BFS-LAX
25h 15m1 stop
£410
Find Deal
Sun, 17 Aug - Tue, 2 Sep
Logo
16:30 - 07:40LAX-BFS
31h 10m1 stop
Logo
23:10 - 14:00BFS-LAX
46h 50m2 stops
£463
Find Deal
Sun, 17 Aug - Tue, 2 Sep
British Airways Logo
15:40 - 12:55LAX-BHD
13h 15m1 stop
British Airways Logo
11:55 - 20:15BHD-LAX
16h 20m1 stop
£480British Airways
Find Deal
Mon, 13 Oct - Fri, 24 Oct
British Airways Logo
15:48 - 15:40LAX-BHD
15h 52m2 stops
British Airways Logo
11:55 - 20:15BHD-LAX
16h 20m1 stop
£496British Airways
Find Deal
Mon, 13 Oct - Fri, 24 Oct
American Airlines Logo
09:07 - 11:30SFO-BHD
18h 23m2 stops
American Airlines Logo
12:15 - 23:03BHD-SFO
18h 48m2 stops
£504American Airlines
Find Deal
Sun, 21 Sep - Mon, 6 Oct
American Airlines Logo
09:00 - 11:30SFO-BHD
18h 30m2 stops
American Airlines Logo
12:15 - 23:03BHD-SFO
18h 48m2 stops
£506American Airlines
Find Deal
Sun, 21 Sep - Mon, 6 Oct
Virgin Atlantic Logo
13:45 - 16:55SFO-BHD
19h 10m1 stop
Virgin Atlantic Logo
17:25 - 11:45BHD-SFO
26h 20m1 stop
£510Virgin Atlantic
Find Deal
Sun, 21 Sep - Mon, 6 Oct
Virgin Atlantic Logo
13:45 - 16:55SFO-BHD
19h 10m1 stop
Virgin Atlantic Logo
06:30 - 23:33BHD-SFO
25h 03m2 stops
£531Virgin Atlantic
Find Deal
Sun, 21 Sep - Mon, 6 Oct
KLM Logo
13:45 - 16:55SFO-BHD
19h 10m1 stop
KLM Logo
17:25 - 11:45BHD-SFO
26h 20m1 stop
£536KLM
Find Deal
Sun, 21 Sep - Mon, 6 Oct
KLM Logo
13:45 - 16:55SFO-BHD
19h 10m1 stop
KLM Logo
17:20 - 12:50BHD-SFO
26h 30m1 stop
£555KLM
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Thu, 23 Oct - Thu, 30 Oct

American Airlines flights from California to Northern Ireland

Our best American Airlines deals on California to Northern Ireland flight tickets
American Airlines
21 Sept
SFO09:07San Francisco
18h 23m
2 stops
BHD11:30Belfast City
6 Oct
BHD12:15Belfast City
18h 48m
2 stops
SFO23:03San Francisco
£504
Find similar
American Airlines
21 Sept
SFO09:00San Francisco
18h 30m
2 stops
BHD11:30Belfast City
6 Oct
BHD12:15Belfast City
18h 48m
2 stops
SFO23:03San Francisco
£506
Find similar
American Airlines
14 Jan
LAX08:35Los Angeles
17h 40m
2 stops
BHD10:15Belfast City
14 May
BHD06:35Belfast City
19h 53m
2 stops
LAX18:28Los Angeles
£518
Find similar

British Airways flights from California to Northern Ireland

Our best British Airways deals on California to Northern Ireland flight tickets
British Airways
13 Oct
LAX15:40Los Angeles
13h 15m
1 stop
BHD12:55Belfast City
24 Oct
BHD11:55Belfast City
16h 20m
1 stop
LAX20:15Los Angeles
£480
Find similar
British Airways
13 Oct
LAX15:48Los Angeles
15h 52m
2 stops
BHD15:40Belfast City
24 Oct
BHD11:55Belfast City
16h 20m
1 stop
LAX20:15Los Angeles
£496
Find similar
British Airways
14 Jan
LAX21:00Los Angeles
14h 10m
1 stop
BHD19:10Belfast City
14 May
BHD09:35Belfast City
16h 00m
1 stop
LAX17:35Los Angeles
£505
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from California to Northern Ireland 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 279,928 searches. Data last updated 1 August 2025.
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

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Sun 17/8

16:30-07:40

1 stop31h 10m

Belfast Intl

Tue 2/9

20:55-14:10

1 stop25h 15m

£410

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Sun 17/8

16:30-07:40

1 stop31h 10m

Belfast Intl

Tue 2/9

23:10-14:00

2 stops46h 50m

£463

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 13/10

15:40-12:55

1 stop13h 15m

Belfast City

Fri 24/10

11:55-20:15

1 stop16h 20m

£480

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 13/10

15:48-15:40

2 stops15h 52m

Belfast City

Fri 24/10

11:55-20:15

1 stop16h 20m

£496

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 21/9

09:07-11:30

2 stops18h 23m

Belfast City

Mon 6/10

12:15-23:03

2 stops18h 48m

£504

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 21/9

09:00-11:30

2 stops18h 30m

Belfast City

Mon 6/10

12:15-23:03

2 stops18h 48m

£506

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 21/9

13:45-16:55

1 stop19h 10m

Belfast City

Mon 6/10

17:25-11:45

1 stop26h 20m

£510

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 21/9

13:45-16:55

1 stop19h 10m

Belfast City

Mon 6/10

06:30-23:33

2 stops25h 03m

£531

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 21/9

13:45-16:55

1 stop19h 10m

Belfast City

Mon 6/10

17:25-11:45

1 stop26h 20m

£536

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 23/10

13:45-16:55

1 stop19h 10m

Belfast City

Thu 30/10

17:20-12:50

1 stop26h 30m

£555

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Northern Ireland from

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

What is the cheapest time of day to depart on your flight to Northern Ireland?

Flying to Northern Ireland from California in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as £556 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £564 on average. Flights to Northern Ireland from California in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

£212

Fastest flight time

13h 15m

Direct flights

None

Airports in Northern Ireland

2 airports
The best one-way flight to Northern Ireland from California in the past 72 hours is £212. The best return flight deal from California to Northern Ireland found on momondo in the last 72 hours is £410.
The fastest flight from California to Northern Ireland takes 13h 15m
There are no direct flights from California to Northern Ireland. Popular non-direct routes for this connection are Los Angeles Airport - Belfast Intl Airport, Los Angeles Airport - Belfast City Airport and San Francisco Airport - Belfast Intl Airport.
There are 2 airports near Northern Ireland: Belfast Intl (BFS), Belfast City (BHD)
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  • 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.

An easier way to manage your Northern Ireland trip

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Find better results for your trip to Northern Ireland

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