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Cheap flights from California to Northern Ireland from $280

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Northern Ireland departing on 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from California to Northern Ireland

Cheap round-trip flights

Finnair Logo
4:30 pm - 1:55 pmLAX-BHD
14h 25m1 stop
Finnair Logo
11:05 am - 9:25 pmBHD-LAX
17h 20m1 stop
$579Finnair
Find Deal
Sun, Mar 15 - Thu, Mar 26
American Airlines Logo
1:25 pm - 1:30 pmLAX-BHD
16h 05m1 stop
American Airlines Logo
6:35 am - 6:05 pmBHD-LAX
19h 30m1 stop
$580American Airlines
Find Deal
Wed, Oct 15 - Thu, Oct 23
British Airways Logo
10:00 pm - 6:40 pmLAX-BHD
13h 40m1 stop
British Airways Logo
11:30 am - 7:25 pmBHD-LAX
14h 55m1 stop
$584British Airways
Find Deal
Sun, Mar 15 - Fri, Mar 27
British Airways Logo
3:30 pm - 2:15 pmLAX-BHD
14h 45m1 stop
British Airways Logo
11:25 am - 6:30 pmBHD-LAX
15h 05m1 stop
$629British Airways
Find Deal
Fri, Jan 23 - Tue, Feb 3
KLM Logo
1:45 pm - 4:55 pmSFO-BHD
19h 10m1 stop
KLM Logo
6:30 am - 12:50 pmBHD-SFO
13h 20m1 stop
$632KLM
Find Deal
Mon, Oct 20 - Fri, Oct 31
KLM Logo
1:45 pm - 4:55 pmSFO-BHD
19h 10m2 stops
KLM Logo
6:30 am - 12:50 pmBHD-SFO
13h 20m1 stop
$637KLM
Find Deal
Mon, Oct 20 - Fri, Oct 31
Multiple Airlines Logo
8:15 am - 10:30 amLAX-BHD
18h 15m2 stops
Multiple Airlines Logo
8:45 am - 3:50 pmBHD-LAX
15h 05m1 stop
$638Multiple Airlines
Find Deal
Fri, Jan 23 - Tue, Feb 3
Multiple Airlines Logo
10:00 pm - 8:30 pmLAX-BHD
15h 30m1 stop
Multiple Airlines Logo
11:05 am - 10:08 pmBHD-LAX
19h 03m2 stops
$642Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Delta Logo
9:59 am - 4:50 pmLAX-BHD
23h 51m2 stops
Delta Logo
6:30 am - 9:49 pmBHD-LAX
23h 19m2 stops
$696Delta
Find Deal
Thu, Oct 30 - Thu, Nov 6
Delta Logo
1:55 pm - 9:00 pmSFO-BHD
23h 05m1 stop
Delta Logo
6:30 am - 11:50 amBHD-SFO
13h 20m1 stop
$700Delta
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
Oct 15
LAX1:25 pmLos Angeles
16h 05m
1 stop
BHD1:30 pmBelfast City
Oct 23
BHD6:35 amBelfast City
19h 30m
1 stop
LAX6:05 pmLos Angeles
$580
Find similar
American Airlines
Oct 15
LAX11:30 amLos Angeles
16h 25m
2 stops
BHD11:55 amBelfast City
Oct 23
BHD12:40 pmBelfast City
15h 35m
1 stop
LAX8:15 pmLos Angeles
$585
Find similar
American Airlines
Oct 15
LAX11:30 amLos Angeles
16h 25m
2 stops
BHD11:55 amBelfast City
Oct 23
BHD6:35 amBelfast City
20h 19m
2 stops
LAX6:54 pmLos Angeles
$595
Find similar

British Airways flights from California to Northern Ireland

Our best British Airways deals on California to Northern Ireland flight tickets
British Airways
Mar 15
LAX10:00 pmLos Angeles
13h 40m
1 stop
BHD6:40 pmBelfast City
Mar 27
BHD11:30 amBelfast City
14h 55m
1 stop
LAX7:25 pmLos Angeles
$584
Find similar
British Airways
Jan 23
LAX3:30 pmLos Angeles
14h 45m
1 stop
BHD2:15 pmBelfast City
Feb 3
BHD11:25 amBelfast City
15h 05m
1 stop
LAX6:30 pmLos Angeles
$629
Find similar
British Airways
Mar 12
LAX10:00 pmLos Angeles
13h 50m
1 stop
BHD6:50 pmBelfast City
Mar 25
BHD12:25 pmBelfast City
14h 05m
1 stop
LAX7:30 pmLos Angeles
$634
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 September 16, 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

Sun 3/15

4:30 pm-1:55 pm

1 stop14h 25m

Belfast City

Thu 3/26

11:05 am-9:25 pm

1 stop17h 20m

$579

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 10/15

1:25 pm-1:30 pm

1 stop16h 05m

Belfast City

Thu 10/23

6:35 am-6:05 pm

1 stop19h 30m

$580

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Sun 3/15

10:00 pm-6:40 pm

1 stop13h 40m

Belfast City

Fri 3/27

11:30 am-7:25 pm

1 stop14h 55m

$584

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 1/23

3:30 pm-2:15 pm

1 stop14h 45m

Belfast City

Tue 2/3

11:25 am-6:30 pm

1 stop15h 05m

$629

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 10/20

1:45 pm-4:55 pm

1 stop19h 10m

Belfast City

Fri 10/31

6:30 am-12:50 pm

1 stop13h 20m

$632

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 10/20

1:45 pm-4:55 pm

2 stops19h 10m

Belfast City

Fri 10/31

6:30 am-12:50 pm

1 stop13h 20m

$637

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 1/23

8:15 am-10:30 am

2 stops18h 15m

Belfast City

Tue 2/3

8:45 am-3:50 pm

1 stop15h 05m

$638

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Thu 10/30

10:00 pm-8:30 pm

1 stop15h 30m

Belfast City

Thu 11/6

11:05 am-10:08 pm

2 stops19h 03m

$642

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Thu 10/30

9:59 am-4:50 pm

2 stops23h 51m

Belfast City

Thu 11/6

6:30 am-9:49 pm

2 stops23h 19m

$696

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 12/3

1:55 pm-9:00 pm

1 stop23h 05m

Belfast City

Sun 12/7

6:30 am-11:50 am

1 stop13h 20m

$700

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 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.

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

You could potentially save up to 18% 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 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 $588Free CancellationRating
6.7
7,363 reviews
Search British Airways flights
American AirlinesPriceFrom $635Free CancellationRating
7.2
10,000 reviews
Search American Airlines 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

Popular cities in Northern Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom $318
Flights to Manchesterfrom $391
Flights to Edinburghfrom $393
Flights to Glasgowfrom $390
Flights to Birminghamfrom $389
Flights to Newcastle upon Tynefrom $430
Flights to Belfastfrom $477
Flights to Bristolfrom $425
Flights to Invernessfrom $407
Flights to Liverpoolfrom $441
Flights to Aberdeenfrom $487
Flights to Leedsfrom $453