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Cheap flights from California to Northern Ireland from £485

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from California to Northern Ireland departing on 24/3. 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 return flights

Enter your travel dates to find the best prices.
British Airways Logo
18:30 - 18:40SFO-BHD
17h 10m1 stop
British Airways Logo
06:35 - 13:50BHD-SFO
15h 15m1 stop
£485British Airways
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Tue, 24 Mar - Tue, 31 Mar
Multiple Airlines Logo
13:45 - 16:50LAX-BHD
19h 05m1 stop
Multiple Airlines Logo
17:20 - 11:45BHD-LAX
26h 25m1 stop
£489Multiple Airlines
Find Deal
Fri, 23 Jan - Tue, 3 Feb
Delta Logo
09:30 - 16:50LAX-BHD
23h 20m2 stops
Delta Logo
17:20 - 11:45BHD-LAX
26h 25m1 stop
£493Delta
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Fri, 23 Jan - Tue, 3 Feb
American Airlines Logo
10:24 - 11:30SFO-BHD
18h 06m2 stops
American Airlines Logo
06:35 - 18:42BHD-SFO
20h 07m2 stops
£499American Airlines
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Tue, 24 Mar - Tue, 31 Mar
Delta Logo
11:55 - 16:50LAX-BHD
20h 55m2 stops
Delta Logo
17:20 - 17:28BHD-LAX
32h 08m2 stops
£500Delta
Find Deal
Fri, 23 Jan - Tue, 3 Feb
Virgin Atlantic Logo
13:55 - 21:00SFO-BHD
23h 05m1 stop
Virgin Atlantic Logo
06:30 - 11:50BHD-SFO
13h 20m1 stop
£520Virgin Atlantic
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Wed, 3 Dec - Sun, 7 Dec
Virgin Atlantic Logo
14:00 - 21:00SFO-BHD
23h 00m2 stops
Virgin Atlantic Logo
06:30 - 11:50BHD-SFO
13h 20m1 stop
£523Virgin Atlantic
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Wed, 3 Dec - Sun, 7 Dec
KLM Logo
05:55 - 16:50OAK-BHD
26h 55m2 stops
KLM Logo
17:20 - 16:11BHD-OAK
30h 51m2 stops
£570KLM
Find Deal
Thu, 13 Nov - Mon, 17 Nov
KLM Logo
11:40 - 21:00SJC-BHD
25h 20m2 stops
KLM Logo
17:20 - 16:05BHD-SJC
30h 45m2 stops
£570KLM
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Wed, 12 Nov - Sun, 16 Nov
American Airlines Logo
09:00 - 10:20SFO-BHD
17h 20m2 stops
American Airlines Logo
09:10 - 20:30BHD-SFO
19h 20m2 stops
£662American Airlines
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Sun, 7 Dec - Sun, 14 Dec

Virgin Atlantic flights from California to Northern Ireland

Our best Virgin Atlantic deals on California to Northern Ireland flight tickets
Virgin Atlantic
3 Dec
SFO13:55San Francisco
23h 05m
1 stop
BHD21:00Belfast City
7 Dec
BHD06:30Belfast City
13h 20m
1 stop
SFO11:50San Francisco
£520
Find similar
Virgin Atlantic
3 Dec
SFO14:00San Francisco
23h 00m
2 stops
BHD21:00Belfast City
7 Dec
BHD06:30Belfast City
13h 20m
1 stop
SFO11:50San Francisco
£523
Find similar
Virgin Atlantic
3 Dec
SFO13:55San Francisco
23h 05m
1 stop
BHD21:00Belfast City
7 Dec
BHD06:30Belfast City
22h 29m
2 stops
SFO20:59San Francisco
£527
Find similar

KLM flights from California to Northern Ireland

Our best KLM deals on California to Northern Ireland flight tickets
KLM
4 Nov
SFO13:55San Francisco
18h 55m
1 stop
BHD16:50Belfast City
13 Nov
BHD06:30Belfast City
13h 20m
1 stop
SFO11:50San Francisco
£497
Find similar
KLM
4 Nov
SFO13:55San Francisco
18h 55m
1 stop
BHD16:50Belfast City
13 Nov
BHD06:30Belfast City
22h 06m
2 stops
SFO20:36San Francisco
£505
Find similar
KLM
4 Nov
SJC11:35San Jose
21h 15m
2 stops
BHD16:50Belfast City
13 Nov
BHD06:30Belfast City
20h 36m
2 stops
SJC19:06San Jose
£508
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 31 October 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

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 24/3

18:30-18:40

1 stop17h 10m

Belfast City

Tue 31/3

06:35-13:50

1 stop15h 15m

£485

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

13:45-16:50

1 stop19h 05m

Belfast City

Tue 3/2

17:20-11:45

1 stop26h 25m

£489

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

09:30-16:50

2 stops23h 20m

Belfast City

Tue 3/2

17:20-11:45

1 stop26h 25m

£493

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 24/3

10:24-11:30

2 stops18h 06m

Belfast City

Tue 31/3

06:35-18:42

2 stops20h 07m

£499

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

11:55-16:50

2 stops20h 55m

Belfast City

Tue 3/2

17:20-17:28

2 stops32h 08m

£500

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

13:55-21:00

1 stop23h 05m

Belfast City

Sun 7/12

06:30-11:50

1 stop13h 20m

£520

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

14:00-21:00

2 stops23h 00m

Belfast City

Sun 7/12

06:30-11:50

1 stop13h 20m

£523

OaklandBelfast

OAK - BHD

OAKBHD

Oakland

Thu 13/11

05:55-16:50

2 stops26h 55m

Belfast City

Mon 17/11

17:20-16:11

2 stops30h 51m

£570

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 12/11

11:40-21:00

2 stops25h 20m

Belfast City

Sun 16/11

17:20-16:05

2 stops30h 45m

£570

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 7/12

09:00-10:20

2 stops17h 20m

Belfast City

Sun 14/12

09:10-20:30

2 stops19h 20m

£662

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 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 month to fly to Northern Ireland?

In general, October 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 £480. If you’re not able to fly to Northern Ireland in October, then February is your next best option. Flight prices from California to Northern Ireland during February average around £520.

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 £559 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 £567 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.

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

You could potentially save up to 14% 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

Direct flights

None
There are no direct flights from California to Northern Ireland. There are no popular flight routes from California to Northern Ireland.
Search flight deals

  • 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

We make it super easy to schedule, organise 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 Northern Ireland

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Popular flights according to clicks in the last 7 days on momondo
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