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

British Airways, Aer Lingus, and Virgin Atlantic 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.

$459 Cheap Flights from Northern Ireland to California in 2026/27

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.

8:50 am - 6:45 pmBHD Belfast City-SFO San Francisco

17h 55m1 stop London Heathrow

5:25 pm - 4:45 pmSFO San Francisco-BHD Belfast City

15h 20m1 stop London Heathrow

$709British Airways

Thu, Mar 4 - Tue, Mar 9

8:50 am - 2:55 pmBHD Belfast City-SFO San Francisco

14h 05m1 stop London Heathrow

4:35 pm - 4:45 pmSFO San Francisco-BHD Belfast City

16h 10m2 stops Phoenix Sky Harbor Intl London Heathrow

$713British Airways

Thu, Mar 4 - Tue, Mar 9

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

16h 20m1 stop London Heathrow

1:54 pm - 4:45 pmSFO San Francisco-BHD Belfast City

18h 51m2 stops Chicago O'Hare Intl London Heathrow

$717British Airways

Mon, Nov 23 - Tue, Dec 8

11:40 am - 10:35 pmBHD Belfast City-SFO San Francisco

18h 55m2 stops London Heathrow Dallas/Fort Worth

4:03 pm - 4:45 pmSFO San Francisco-BHD Belfast City

16h 42m2 stops Phoenix Sky Harbor Intl London Heathrow

$723British Airways

Mon, Nov 23 - Tue, Dec 8

6:30 am - 6:20 pmBHD Belfast City-SFO San Francisco

19h 50m2 stops London Heathrow Chicago O'Hare Intl

11:49 am - 2:50 pmSFO San Francisco-BHD Belfast City

19h 01m2 stops Los Angeles London Heathrow

$736British Airways

Thu, Mar 4 - Tue, Mar 9

8:00 pm - 3:20 pmBHD Belfast City-LAX Los Angeles

27h 20m1 stop London Heathrow

8:50 pm - 6:35 pmLAX Los Angeles-BHD Belfast City

13h 45m1 stop London Heathrow

$771British Airways

Thu, Jan 21 - Mon, Jan 25

6:30 am - 6:45 pmBHD Belfast City-SFO San Francisco

20h 15m1 stop London Heathrow

1:18 pm - 4:05 pmSFO San Francisco-BHD Belfast City

18h 47m2 stops New York John F Kennedy Intl London Heathrow

$771British Airways

Thu, Jan 21 - Mon, Jan 25

11:05 am - 10:12 pmBHD Belfast City-SFO San Francisco

19h 07m2 stops London Heathrow Los Angeles

7:50 am - 10:50 amSFO San Francisco-BHD Belfast City

19h 00m2 stops Dallas/Fort Worth London Heathrow

$776British Airways

Thu, Jan 21 - Mon, Jan 25

11:05 am - 10:12 pmBHD Belfast City-SFO San Francisco

19h 07m2 stops London Heathrow Los Angeles

7:50 am - 10:50 amSFO San Francisco-BHD Belfast City

19h 00m2 stops Dallas/Fort Worth London Heathrow

$777British Airways

Thu, Jan 21 - Mon, Jan 25

11:40 am - 3:55 pmBHD Belfast City-SFO San Francisco

35h 15m1 stop London Heathrow

8:35 pm - 6:35 pmSFO San Francisco-BHD Belfast City

14h 00m1 stop London Heathrow

$787British Airways

Mon, Oct 26 - Mon, Nov 2

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British Airways flights from Northern Ireland to California

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

British Airways

Mar 4

BHD8:50 amBelfast City

17h 55m

1 stop

SFO6:45 pmSan Francisco

Mar 9

SFO5:25 pmSan Francisco

15h 20m

1 stop

BHD4:45 pmBelfast City

$709

British Airways

Mar 4

BHD8:50 amBelfast City

14h 05m

1 stop

SFO2:55 pmSan Francisco

Mar 9

SFO4:35 pmSan Francisco

16h 10m

2 stops

BHD4:45 pmBelfast City

$713

British Airways

Nov 23

BHD6:35 amBelfast City

16h 20m

1 stop

SFO2:55 pmSan Francisco

Dec 8

SFO1:54 pmSan Francisco

18h 51m

2 stops

BHD4:45 pmBelfast City

$717

American Airlines flights from Northern Ireland to California

Our best American Airlines deals on Northern Ireland to California flight tickets

American Airlines

Oct 9

BHD12:00 pmBelfast City

16h 10m

1 stop

LAX8:10 pmLos Angeles

Oct 13

LAX4:30 pmLos Angeles

14h 50m

1 stop

BHD3:20 pmBelfast City

$717

American Airlines

Nov 21

BHD11:45 amBelfast City

16h 35m

1 stop

LAX8:20 pmLos Angeles

Dec 4

LAX6:25 pmLos Angeles

16h 45m

1 stop

BHD7:10 pmBelfast City

$840

American Airlines

Oct 8

BHD6:30 amBelfast City

20h 33m

2 stops

SFO7:03 pmSan Francisco

Oct 13

SFO7:30 pmSan Francisco

14h 05m

1 stop

BHD5:35 pmBelfast City

$1,078

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

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 3/4

8:50 am-6:45 pm

1 stop17h 55m

San Francisco

Tue 3/9

5:25 pm-4:45 pm

1 stop15h 20m

$709

Quickest round-trip

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 3/4

8:50 am-2:55 pm

1 stop14h 05m

San Francisco

Tue 3/9

4:35 pm-4:45 pm

2 stops16h 10m

$713

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Mon 11/23

6:35 am-2:55 pm

1 stop16h 20m

San Francisco

Tue 12/8

1:54 pm-4:45 pm

2 stops18h 51m

$717

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Mon 11/23

11:40 am-10:35 pm

2 stops18h 55m

San Francisco

Tue 12/8

4:03 pm-4:45 pm

2 stops16h 42m

$723

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 3/4

6:30 am-6:20 pm

2 stops19h 50m

San Francisco

Tue 3/9

11:49 am-2:50 pm

2 stops19h 01m

$736

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Thu 1/21

8:00 pm-3:20 pm

1 stop27h 20m

Los Angeles

Mon 1/25

8:50 pm-6:35 pm

1 stop13h 45m

$771

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 1/21

6:30 am-6:45 pm

1 stop20h 15m

San Francisco

Mon 1/25

1:18 pm-4:05 pm

2 stops18h 47m

$771

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 1/21

11:05 am-10:12 pm

2 stops19h 07m

San Francisco

Mon 1/25

7:50 am-10:50 am

2 stops19h 00m

$776

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 1/21

11:05 am-10:12 pm

2 stops19h 07m

San Francisco

Mon 1/25

7:50 am-10:50 am

2 stops19h 00m

$777

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Mon 10/26

11:40 am-3:55 pm

1 stop35h 15m

San Francisco

Mon 11/2

8:35 pm-6:35 pm

1 stop14h 00m

$787

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 February 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 12% 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	$459
Fastest flight time	15h 40m
Direct flights	None

The best one-way flight to California from Northern Ireland in the past 72 hours is $459. The best round-trip flight deal from Northern Ireland to California found on momondo in the last 72 hours is $709.

The fastest flight from Northern Ireland to California takes 15h 40m

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.