How long is the flight from California to Northern Ireland?

Flight times vary depending on what airport in California you fly out of and what airport in Northern Ireland you fly into. For example, flying from San Francisco to Belfast Intl Airport takes 14h 35m on average. On the other hand, flying from Los Angeles to Belfast Intl Airport takes 15h 20m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

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

British Airways, Aer Lingus, and Delta are the most popular carriers operating 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 are updated daily.

How many operators does momondo search for flights from California to Northern Ireland?

As of October 2026, there is 1 operator available to choose from for flights 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 required travel and health documents for your Northern Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$313 Cheap Flights from California to Northern Ireland in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from California to Northern Ireland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:50 pm - 8:10 pmLAX Los Angeles-BHD Belfast City

15h 20m1 stop London Heathrow

12:00 pm - 8:15 pmBHD Belfast City-LAX Los Angeles

16h 15m1 stop London Heathrow

$872British Airways

Sun, Jan 10 - Sun, Jan 17

3:30 pm - 1:50 pmLAX Los Angeles-BHD Belfast City

14h 20m1 stop London Heathrow

6:35 am - 3:20 pmBHD Belfast City-LAX Los Angeles

16h 45m1 stop London Heathrow

$872British Airways

Sun, Jan 17 - Sat, Jan 30

3:30 pm - 4:50 pmLAX Los Angeles-BHD Belfast City

17h 20m1 stop London Heathrow

11:05 am - 6:35 pmBHD Belfast City-LAX Los Angeles

15h 30m1 stop London Heathrow

$873British Airways

Sun, Jan 17 - Thu, Jan 28

8:50 pm - 8:10 pmLAX Los Angeles-BHD Belfast City

15h 20m1 stop London Heathrow

6:45 am - 6:30 pmBHD Belfast City-LAX Los Angeles

19h 45m1 stop London Heathrow

$873British Airways

Wed, Jan 20 - Fri, Jan 29

6:00 pm - 4:45 pmLAX Los Angeles-BHD Belfast City

14h 45m1 stop London Heathrow

4:55 pm - 1:25 pmBHD Belfast City-LAX Los Angeles

28h 30m1 stop London Heathrow

$873British Airways

Tue, Jan 19 - Tue, Feb 2

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

14h 00m1 stop London Heathrow

6:35 am - 3:50 pmBHD Belfast City-LAX Los Angeles

17h 15m1 stop London Heathrow

$873British Airways

Sun, Jan 17 - Tue, Feb 2

8:50 pm - 8:10 pmLAX Los Angeles-BHD Belfast City

15h 20m1 stop London Heathrow

6:45 am - 1:25 pmBHD Belfast City-LAX Los Angeles

14h 40m1 stop London Heathrow

$873British Airways

Mon, Jan 18 - Fri, Jan 29

8:50 pm - 8:10 pmLAX Los Angeles-BHD Belfast City

15h 20m1 stop London Heathrow

6:30 am - 3:50 pmBHD Belfast City-LAX Los Angeles

17h 20m1 stop London Heathrow

$873British Airways

Tue, Jan 19 - Thu, Jan 28

8:30 am - 9:10 amLAX Los Angeles-BHD Belfast City

16h 40m2 stops Minneapolis St Paul Amsterdam Schiphol

5:20 pm - 11:45 amBHD Belfast City-LAX Los Angeles

26h 25m1 stop Amsterdam Schiphol

$892Delta

Wed, Jan 20 - Mon, Feb 1

7:00 am - 9:10 amLAX Los Angeles-BHD Belfast City

18h 10m2 stops New York John F Kennedy Intl Amsterdam Schiphol

5:20 pm - 11:45 amBHD Belfast City-LAX Los Angeles

26h 25m1 stop Amsterdam Schiphol

$892Delta

Sun, Jan 17 - Mon, Feb 1

Cheap last minute flights

Enter your travel dates to find the best prices.

7:30 pm - 5:35 pmSFO San Francisco-BHD Belfast City

14h 05m1 stop London Heathrow

12:40 pm - 11:37 pmBHD Belfast City-SFO San Francisco

18h 57m2 stops London Heathrow Los Angeles

$1,098British Airways

Tue, Oct 6 - Tue, Oct 13

7:30 pm - 6:55 pmSFO San Francisco-BHD Belfast City

15h 25m1 stop London Heathrow

6:30 am - 9:39 pmBHD Belfast City-SFO San Francisco

23h 09m2 stops London Heathrow Los Angeles

$1,098British Airways

Tue, Oct 6 - Tue, Oct 13

12:42 pm - 5:35 pmSFO San Francisco-BHD Belfast City

20h 53m2 stops Dallas/Fort Worth London Heathrow

6:30 am - 7:03 pmBHD Belfast City-SFO San Francisco

20h 33m2 stops London Heathrow Los Angeles

$1,100British Airways

Tue, Oct 6 - Tue, Oct 13

4:07 pm - 6:55 pmSFO San Francisco-BHD Belfast City

18h 48m2 stops Los Angeles London Heathrow

12:40 pm - 1:07 amBHD Belfast City-SFO San Francisco

20h 27m2 stops London Heathrow New York John F Kennedy Intl

$1,100British Airways

Tue, Oct 6 - Tue, Oct 13

4:35 pm - 3:20 pmSFO San Francisco-BHD Belfast City

14h 45m1 stop London Heathrow

7:30 pm - 1:50 pmBHD Belfast City-SFO San Francisco

26h 20m1 stop London Heathrow

$1,163British Airways

Tue, Oct 6 - Tue, Oct 13

7:30 pm - 6:55 pmSFO San Francisco-BHD Belfast City

15h 25m1 stop London Heathrow

4:25 pm - 1:50 pmBHD Belfast City-SFO San Francisco

29h 25m1 stop London Heathrow

$1,207British Airways

Tue, Oct 6 - Tue, Oct 13

7:57 pm - 6:45 pmSFO San Francisco-BHD Belfast City

38h 48m3 stops Los Angeles Hong Kong Intl London Heathrow

7:30 pm - 10:55 amBHD Belfast City-SFO San Francisco

47h 25m2 stops London Heathrow Hong Kong Intl

$12,727Multiple Airlines

Tue, Oct 6 - Tue, Oct 13

6:07 am - 1:35 pmSFO San Francisco-BHD Belfast City

47h 28m3 stops Seattle/Tacoma Intl Hong Kong Intl London Heathrow

9:40 am - 2:23 pmBHD Belfast City-SFO San Francisco

36h 43m3 stops London Heathrow Hong Kong Intl Seattle/Tacoma Intl

$12,826Multiple Airlines

Tue, Oct 6 - Tue, Oct 13

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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

Jan 10

LAX8:50 pmLos Angeles

15h 20m

1 stop

BHD8:10 pmBelfast City

Jan 17

BHD12:00 pmBelfast City

16h 15m

1 stop

LAX8:15 pmLos Angeles

$872

British Airways

Jan 17

LAX8:50 pmLos Angeles

14h 00m

1 stop

BHD6:50 pmBelfast City

Feb 1

BHD7:40 pmBelfast City

25h 45m

1 stop

LAX1:25 pmLos Angeles

$873

British Airways

Feb 1

LAX6:00 pmLos Angeles

16h 35m

1 stop

BHD6:35 pmBelfast City

Feb 5

BHD6:45 amBelfast City

19h 45m

1 stop

LAX6:30 pmLos Angeles

$874

Delta flights from California to Northern Ireland

Our best Delta deals on California to Northern Ireland flight tickets

Delta

Jan 17

LAX7:00 amLos Angeles

18h 10m

2 stops

BHD9:10 amBelfast City

Feb 1

BHD5:20 pmBelfast City

26h 25m

1 stop

LAX11:45 amLos Angeles

$892

Delta

Feb 20

SFO10:00 pmSan Francisco

27h 10m

2 stops

BHD9:10 amBelfast City

Mar 3

BHD5:20 pmBelfast City

26h 25m

1 stop

SFO11:45 amSan Francisco

$902

Delta

Feb 20

SFO10:00 pmSan Francisco

27h 10m

2 stops

BHD9:10 amBelfast City

Mar 2

BHD5:20 pmBelfast City

32h 32m

2 stops

SFO5:52 pmSan Francisco

$911

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 round-trip

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Sun 1/10

8:50 pm-8:10 pm

1 stop15h 20m

Belfast City

Sun 1/17

12:00 pm-8:15 pm

1 stop16h 15m

$872

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Sun 1/17

3:30 pm-1:50 pm

1 stop14h 20m

Belfast City

Sat 1/30

6:35 am-3:20 pm

1 stop16h 45m

$872

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Sun 1/17

3:30 pm-4:50 pm

1 stop17h 20m

Belfast City

Thu 1/28

11:05 am-6:35 pm

1 stop15h 30m

$873

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Wed 1/20

8:50 pm-8:10 pm

1 stop15h 20m

Belfast City

Fri 1/29

6:45 am-6:30 pm

1 stop19h 45m

$873

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Tue 1/19

6:00 pm-4:45 pm

1 stop14h 45m

Belfast City

Tue 2/2

4:55 pm-1:25 pm

1 stop28h 30m

$873

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Sun 1/17

8:50 pm-6:50 pm

1 stop14h 00m

Belfast City

Tue 2/2

6:35 am-3:50 pm

1 stop17h 15m

$873

Quickest round-trip

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Mon 1/18

8:50 pm-8:10 pm

1 stop15h 20m

Belfast City

Fri 1/29

6:45 am-1:25 pm

1 stop14h 40m

$873

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Tue 1/19

8:50 pm-8:10 pm

1 stop15h 20m

Belfast City

Thu 1/28

6:30 am-3:50 pm

1 stop17h 20m

$873

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Wed 1/20

8:30 am-9:10 am

2 stops16h 40m

Belfast City

Mon 2/1

5:20 pm-11:45 am

1 stop26h 25m

$892

Los AngelesBelfast

LAX Los Angeles - BHD Belfast City

LAXBHD

Los Angeles

Sun 1/17

7:00 am-9:10 am

2 stops18h 10m

Belfast City

Mon 2/1

5:20 pm-11:45 am

1 stop26h 25m

$892

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 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

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

You could potentially save up to 13% 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	$313
Fastest flight time	14h 35m
Direct flights	None

The best one-way flight to Northern Ireland from California in the past 72 hours is $313. The best round-trip flight deal from California to Northern Ireland found on momondo in the last 72 hours is $872.

The fastest flight from California to Northern Ireland takes 14h 35m

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 are updated daily.
How many operators does momondo search for flights from California to Northern Ireland?
As of October 2026, there is 1 operator available to choose from for flights 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 required travel and health documents for your Northern Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from California to Northern Ireland

Compare and see reviews for airlines that fly from California to Northern Ireland with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $586	Free Cancellation	Rating 6.7 8,244 reviews		Search British Airways flights

Why use momondo?

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

Finding the right flight to Northern Ireland from California is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Northern Ireland quick and easy, saving you time and money.

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

All flight searches from California to Northern Ireland on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between California and Northern Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Northern Ireland from California are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.