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

British Airways, KLM, and Delta are the most popular carriers operating from Northern Ireland to California

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

Prices for flights from Northern Ireland to California are updated daily.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Northern Ireland to California.

What documentation or ID do you need to fly to California?

The travel and health documents you'll need for your trip to California may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at California. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$494 Cheap Flights from Northern Ireland to California in 2026

Find the cheapest flights from Northern Ireland to California

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 am - 6:00 pmBFS Belfast Intl-SFO San Francisco

19h 50m2 stops London Gatwick Paris Charles de Gaulle

3:05 pm - 8:25 pmSFO San Francisco-BFS Belfast Intl

21h 20m2 stops Paris Charles de Gaulle London Gatwick

$825Multiple Airlines

Mon, Sep 28 - Mon, Oct 5

8:55 pm - 4:30 pmBFS Belfast Intl-LAX Los Angeles

27h 35m2 stops London Gatwick Zurich

7:35 pm - 9:05 pmLAX Los Angeles-BFS Belfast Intl

17h 30m2 stops Zurich London Gatwick

$846Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

6:35 am - 2:55 pmBHD Belfast City-SFO San Francisco

16h 20m1 stop London Heathrow

5:25 pm - 6:45 pmSFO San Francisco-BHD Belfast City

17h 20m1 stop London Heathrow

$867British Airways

Sat, Jan 30 - Thu, Feb 4

6:30 am - 1:50 pmBHD Belfast City-SFO San Francisco

15h 20m1 stop London Heathrow

7:30 pm - 7:25 pmSFO San Francisco-BHD Belfast City

15h 55m1 stop London Heathrow

$875British Airways

Thu, Sep 3 - Mon, Sep 7

11:45 am - 10:34 pmBHD Belfast City-SFO San Francisco

18h 49m2 stops London Heathrow Dallas/Fort Worth

10:29 am - 10:55 amSFO San Francisco-BHD Belfast City

16h 26m2 stops New York John F Kennedy Intl London Heathrow

$879British Airways

Sat, Jan 30 - Thu, Feb 4

6:20 am - 4:30 pmBFS Belfast Intl-LAX Los Angeles

18h 10m2 stops London Gatwick Zurich

7:35 pm - 9:05 pmLAX Los Angeles-BFS Belfast Intl

17h 30m2 stops Zurich London Gatwick

$887Multiple Airlines

Sat, Sep 5 - Tue, Sep 8

8:35 pm - 11:35 amBHD Belfast City-LAX Los Angeles

23h 00m1 stop London Heathrow

3:45 pm - 2:35 pmLAX Los Angeles-BHD Belfast City

14h 50m1 stop London Heathrow

$894British Airways

Wed, Oct 14 - Sun, Oct 18

11:35 am - 8:10 pmBHD Belfast City-LAX Los Angeles

16h 35m1 stop London Heathrow

12:09 pm - 2:35 pmLAX Los Angeles-BHD Belfast City

18h 26m2 stops New York John F Kennedy Intl London Heathrow

$896British Airways

Wed, Oct 14 - Sun, Oct 18

8:35 pm - 11:35 amBHD Belfast City-LAX Los Angeles

23h 00m1 stop London Heathrow

3:45 pm - 2:35 pmLAX Los Angeles-BHD Belfast City

14h 50m1 stop London Heathrow

$897British Airways

Wed, Oct 14 - Sun, Oct 18

9:35 am - 8:23 pmBHD Belfast City-SFO San Francisco

18h 48m2 stops London Heathrow Dallas/Fort Worth

7:30 pm - 5:30 pmSFO San Francisco-BHD Belfast City

14h 00m1 stop London Heathrow

$898British Airways

Thu, Sep 3 - Mon, Sep 7

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

British Airways flights from Northern Ireland to California

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

British Airways

Jan 30

BHD6:35 amBelfast City

16h 20m

1 stop

SFO2:55 pmSan Francisco

Feb 4

SFO5:25 pmSan Francisco

17h 20m

1 stop

BHD6:45 pmBelfast City

$867

British Airways

Sep 3

BHD6:30 amBelfast City

15h 20m

1 stop

SFO1:50 pmSan Francisco

Sep 7

SFO7:30 pmSan Francisco

15h 55m

1 stop

BHD7:25 pmBelfast City

$875

British Airways

Jan 30

BHD11:45 amBelfast City

18h 49m

2 stops

SFO10:34 pmSan Francisco

Feb 4

SFO10:29 amSan Francisco

16h 26m

2 stops

BHD10:55 amBelfast City

$879

Delta flights from Northern Ireland to California

Our best Delta deals on Northern Ireland to California flight tickets

Delta

Sep 14

BHD5:30 pmBelfast City

26h 15m

1 stop

SFO11:45 amSan Francisco

Sep 21

SFO7:00 amSan Francisco

18h 20m

2 stops

BHD9:20 amBelfast City

$903

Delta

Sep 14

BHD9:50 amBelfast City

22h 44m

2 stops

SFO12:34 amSan Francisco

Sep 21

SFO6:35 amSan Francisco

18h 45m

2 stops

BHD9:20 amBelfast City

$909

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Mon 9/28

6:10 am-6:00 pm

2 stops19h 50m

San Francisco

Mon 10/5

3:05 pm-8:25 pm

2 stops21h 20m

$825

BelfastLos Angeles

BFS Belfast Intl - LAX Los Angeles

BFSLAX

Belfast Intl

Tue 9/29

8:55 pm-4:30 pm

2 stops27h 35m

Los Angeles

Tue 10/6

7:35 pm-9:05 pm

2 stops17h 30m

$846

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Sat 1/30

6:35 am-2:55 pm

1 stop16h 20m

San Francisco

Thu 2/4

5:25 pm-6:45 pm

1 stop17h 20m

$867

Quickest round-trip

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 9/3

6:30 am-1:50 pm

1 stop15h 20m

San Francisco

Mon 9/7

7:30 pm-7:25 pm

1 stop15h 55m

$875

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Sat 1/30

11:45 am-10:34 pm

2 stops18h 49m

San Francisco

Thu 2/4

10:29 am-10:55 am

2 stops16h 26m

$879

BelfastLos Angeles

BFS Belfast Intl - LAX Los Angeles

BFSLAX

Belfast Intl

Sat 9/5

6:20 am-4:30 pm

2 stops18h 10m

Los Angeles

Tue 9/8

7:35 pm-9:05 pm

2 stops17h 30m

$887

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Wed 10/14

8:35 pm-11:35 am

1 stop23h 00m

Los Angeles

Sun 10/18

3:45 pm-2:35 pm

1 stop14h 50m

$894

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Wed 10/14

11:35 am-8:10 pm

1 stop16h 35m

Los Angeles

Sun 10/18

12:09 pm-2:35 pm

2 stops18h 26m

$896

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Wed 10/14

8:35 pm-11:35 am

1 stop23h 00m

Los Angeles

Sun 10/18

3:45 pm-2:35 pm

1 stop14h 50m

$897

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 9/3

9:35 am-8:23 pm

2 stops18h 48m

San Francisco

Mon 9/7

7:30 pm-5:30 pm

1 stop14h 00m

$898

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Northern Ireland 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?

The month of January is another great option to travel to California, with average flight prices from Northern Ireland averaging around $0.

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

You could potentially save up to 26% on your flight if you consider stops on a Northern Ireland to California flight.

Cheap Northern Ireland to California flight deals and tips

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

Best Price Found	$494
Fastest flight time	14h 50m
Direct flights	None

The best one-way flight to California from Northern Ireland in the past 72 hours is $494. The best round-trip flight deal from Northern Ireland to California found on momondo in the last 72 hours is $825.

The fastest flight from Northern Ireland to California takes 14h 50m

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

Search flight deals

Frequently asked questions about flying from Northern Ireland to California

When did momondo last update prices for flights from Northern Ireland to California?
Prices for flights from Northern Ireland to California are updated daily.
How old do you have to be to fly from Northern Ireland to California?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Northern Ireland to California.
What documentation or ID do you need to fly to California?
The travel and health documents you'll need for your trip to California may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at California. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

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

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

Yes. All flights to California from Northern Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Northern Ireland to California?

Once you have performed a search for Northern Ireland to California 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 Northern Ireland to California right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Northern Ireland to California flights. All you need is a valid email address and we will do the rest; it is that quick and easy.