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Cheap flights from California to Northern Ireland from $608

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from California to Northern Ireland departing on 12/1. 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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0 bags

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Find the cheapest flights from California to Northern Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
9:00 pm - 6:35 pmLAX-BHD
13h 35m1 stop
American Airlines Logo
6:30 am - 1:30 pmBHD-LAX
15h 00m1 stop
$608American Airlines
Find Deal
Mon, Dec 1 - Sun, Dec 7
American Airlines Logo
5:45 pm - 4:05 pmLAX-BHD
14h 20m1 stop
American Airlines Logo
6:30 am - 3:20 pmBHD-LAX
16h 50m1 stop
$609American Airlines
Find Deal
Mon, Dec 1 - Sun, Dec 14
Virgin Atlantic Logo
4:05 pm - 4:50 pmLAS-BHD
16h 45m1 stop
Virgin Atlantic Logo
5:20 pm - 2:15 pmBHD-LAS
28h 55m1 stop
$611Virgin Atlantic
Find Deal
Thu, Dec 4 - Mon, Dec 8
British Airways Logo
3:30 pm - 2:15 pmLAX-BHD
14h 45m1 stop
British Airways Logo
6:35 am - 3:50 pmBHD-LAX
17h 15m1 stop
$612British Airways
Find Deal
Fri, Jan 23 - Tue, Feb 3
Multiple Airlines Logo
9:50 am - 10:30 amLAX-BHD
16h 40m2 stops
Multiple Airlines Logo
8:45 am - 6:30 pmBHD-LAX
17h 45m1 stop
$626Multiple Airlines
Find Deal
Fri, Jan 23 - Tue, Feb 3
Virgin Atlantic Logo
11:05 am - 4:50 pmLAS-BHD
21h 45m2 stops
Virgin Atlantic Logo
5:20 pm - 2:15 pmBHD-LAS
28h 55m1 stop
$630Virgin Atlantic
Find Deal
Thu, Dec 4 - Mon, Dec 8
Multiple Airlines Logo
1:55 pm - 4:50 pmSFO-BHD
18h 55m1 stop
Multiple Airlines Logo
5:20 pm - 11:50 amBHD-SFO
26h 30m1 stop
$662Multiple Airlines
Find Deal
Tue, Jan 20 - Tue, Jan 27
British Airways Logo
8:55 pm - 8:30 pmLAS-BHD
15h 35m1 stop
British Airways Logo
7:25 pm - 6:50 pmBHD-LAS
31h 25m1 stop
$672British Airways
Find Deal
Thu, Feb 26 - Mon, Mar 2
Delta Logo
1:55 pm - 9:00 pmSFO-BHD
23h 05m1 stop
Delta Logo
5:20 pm - 11:50 amBHD-SFO
26h 30m1 stop
$683Delta
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Wed, Dec 3 - Sun, Dec 7
Delta Logo
8:25 am - 4:50 pmSFO-BHD
24h 25m2 stops
Delta Logo
5:20 pm - 11:50 amBHD-SFO
26h 30m1 stop
$687Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7

American Airlines flights from California to Northern Ireland

Our best American Airlines deals on California to Northern Ireland flight tickets
American Airlines
Dec 1
LAX9:00 pmLos Angeles
13h 35m
1 stop
BHD6:35 pmBelfast City
Dec 7
BHD6:30 amBelfast City
15h 00m
1 stop
LAX1:30 pmLos Angeles
$608
Find similar
American Airlines
Dec 1
LAX5:45 pmLos Angeles
14h 20m
1 stop
BHD4:05 pmBelfast City
Dec 14
BHD6:30 amBelfast City
16h 50m
1 stop
LAX3:20 pmLos Angeles
$609
Find similar
American Airlines
Jan 23
LAX9:50 amLos Angeles
16h 40m
2 stops
BHD10:30 amBelfast City
Feb 3
BHD6:35 amBelfast City
18h 30m
2 stops
LAX5:05 pmLos Angeles
$644
Find similar

Virgin Atlantic flights from California to Northern Ireland

Our best Virgin Atlantic deals on California to Northern Ireland flight tickets
Virgin Atlantic
Dec 4
LAS4:05 pmLas Vegas Harry Reid Intl
16h 45m
1 stop
BHD4:50 pmBelfast City
Dec 8
BHD5:20 pmBelfast City
28h 55m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
$611
Find similar
Virgin Atlantic
Dec 4
LAS11:05 amLas Vegas Harry Reid Intl
21h 45m
2 stops
BHD4:50 pmBelfast City
Dec 8
BHD5:20 pmBelfast City
28h 55m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
$630
Find similar
Virgin Atlantic
Dec 4
LAS7:14 amLas Vegas Harry Reid Intl
25h 36m
2 stops
BHD4:50 pmBelfast City
Dec 8
BHD6:30 amBelfast City
25h 50m
2 stops
LAS12:20 amLas Vegas Harry Reid Intl
$638
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated November 3, 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 - BHD

LAXBHD

Los Angeles

Mon 12/1

9:00 pm-6:35 pm

1 stop13h 35m

Belfast City

Sun 12/7

6:30 am-1:30 pm

1 stop15h 00m

$608

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 12/1

5:45 pm-4:05 pm

1 stop14h 20m

Belfast City

Sun 12/14

6:30 am-3:20 pm

1 stop16h 50m

$609

Las VegasBelfast

LAS - BHD

LASBHD

Las Vegas Harry Reid Intl

Thu 12/4

4:05 pm-4:50 pm

1 stop16h 45m

Belfast City

Mon 12/8

5:20 pm-2:15 pm

1 stop28h 55m

$611

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 1/23

3:30 pm-2:15 pm

1 stop14h 45m

Belfast City

Tue 2/3

6:35 am-3:50 pm

1 stop17h 15m

$612

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 1/23

9:50 am-10:30 am

2 stops16h 40m

Belfast City

Tue 2/3

8:45 am-6:30 pm

1 stop17h 45m

$626

Las VegasBelfast

LAS - BHD

LASBHD

Las Vegas Harry Reid Intl

Thu 12/4

11:05 am-4:50 pm

2 stops21h 45m

Belfast City

Mon 12/8

5:20 pm-2:15 pm

1 stop28h 55m

$630

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 1/20

1:55 pm-4:50 pm

1 stop18h 55m

Belfast City

Tue 1/27

5:20 pm-11:50 am

1 stop26h 30m

$662

Las VegasBelfast

LAS - BHD

LASBHD

Las Vegas Harry Reid Intl

Thu 2/26

8:55 pm-8:30 pm

1 stop15h 35m

Belfast City

Mon 3/2

7:25 pm-6:50 pm

1 stop31h 25m

$672

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 12/3

1:55 pm-9:00 pm

1 stop23h 05m

Belfast City

Sun 12/7

5:20 pm-11:50 am

1 stop26h 30m

$683

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 12/3

8:25 am-4:50 pm

2 stops24h 25m

Belfast City

Sun 12/7

5:20 pm-11:50 am

1 stop26h 30m

$687

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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?

The cheapest month to fly to Northern Ireland from California is in October. Flight prices, which tend to average around $633, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Northern Ireland from California during February instead. Flights to Northern Ireland in February, while not as cheap as those in October, still average around $685.

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

The cheapest day to depart on your flight to Northern Ireland is on a Friday when prices can be found for as low as $691. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from California to Northern Ireland for around $1,143.

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

At noon is the cheapest time of day to fly from California to Northern Ireland when you can find flight prices for as low as $681. Flying to Northern Ireland at noon is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $838.

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 are updated daily.

  • How many operators does momondo search 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 AirwaysPriceFrom $599Free CancellationRating
6.7
7,494 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.

An easier way to manage your Northern Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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Find better results for your trip to Northern Ireland

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