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Cheap flights from Northern Ireland to California from $391

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to California departing on 4/28. 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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Find the cheapest flights from Northern Ireland to California

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:35 pm - 5:00 pm
BFS
-
LAX
32h 25m2 stops
Multiple Airlines Logo
7:30 pm - 10:20 pm
LAX
-
BFS
18h 50m2 stops
$706Multiple Airlines
Thu, Jan 22 - Thu, Jan 29
Multiple Airlines Logo
4:25 pm - 5:00 pm
BFS
-
LAX
32h 35m2 stops
Multiple Airlines Logo
7:30 pm - 10:10 pm
LAX
-
BFS
18h 40m2 stops
$751Multiple Airlines
Wed, Jan 21 - Wed, Jan 28
Multiple Airlines Logo
6:35 am - 3:20 pm
BHD
-
LAX
16h 45m1 stop
Multiple Airlines Logo
5:30 pm - 4:45 pm
LAX
-
BHD
15h 15m1 stop
$766Multiple Airlines
Mon, Jan 19 - Tue, Jan 27
Delta Logo
5:20 pm - 6:53 pm
BHD
-
LAX
33h 33m2 stops
Delta Logo
12:20 pm - 4:50 pm
LAX
-
BHD
20h 30m2 stops
$776Delta
Mon, Jan 19 - Tue, Jan 27
British Airways Logo
11:05 am - 4:35 pm
BHD
-
LAX
37h 30m2 stops
British Airways Logo
4:45 pm - 4:05 pm
LAX
-
BHD
15h 20m2 stops
$805British Airways
Thu, Jan 29 - Mon, Feb 2
British Airways Logo
8:00 pm - 3:00 pm
BHD
-
SFO
27h 00m1 stop
British Airways Logo
2:36 pm - 4:05 pm
SFO
-
BHD
17h 29m2 stops
$805British Airways
Thu, Jan 22 - Mon, Jan 26
British Airways Logo
10:40 am - 6:30 pm
BHD
-
LAX
15h 50m1 stop
British Airways Logo
3:30 pm - 4:05 pm
LAX
-
BHD
16h 35m1 stop
$806British Airways
Thu, Jan 29 - Mon, Feb 2
Finnair Logo
11:05 am - 12:31 am
BHD
-
LAX
21h 26m2 stops
Finnair Logo
10:50 am - 2:15 pm
LAX
-
BHD
19h 25m2 stops
$954Finnair
Thu, Jan 29 - Mon, Feb 2
Finnair Logo
11:25 am - 7:12 pm
BHD
-
SFO
39h 47m2 stops
Finnair Logo
8:40 pm - 2:00 pm
SFO
-
BHD
33h 20m1 stop
$1,512Finnair
Wed, Feb 4 - Wed, Feb 18
Virgin Atlantic Logo
5:20 pm - 11:50 am
BHD
-
SFO
26h 30m1 stop
Virgin Atlantic Logo
1:55 pm - 4:50 pm
SFO
-
BHD
18h 55m1 stop
$1,564Virgin Atlantic
Wed, Feb 4 - Wed, Feb 18

Finnair flights from Northern Ireland to California

Our best Finnair deals on Northern Ireland to California flight tickets
Finnair
Jan 29
BHD11:05 amBelfast City
21h 26m
2 stops
LAX12:31 amLos Angeles
Feb 2
LAX10:50 amLos Angeles
19h 25m
2 stops
BHD2:15 pmBelfast City
$954
Find similar
Finnair
Feb 4
BHD11:25 amBelfast City
39h 47m
2 stops
SFO7:12 pmSan Francisco
Feb 18
SFO8:40 pmSan Francisco
33h 20m
1 stop
BHD2:00 pmBelfast City
$1,512
Find similar
Finnair
Feb 4
BHD11:25 amBelfast City
39h 47m
2 stops
SFO7:12 pmSan Francisco
Feb 18
SFO7:25 amSan Francisco
22h 50m
2 stops
BHD2:15 pmBelfast City
$1,514
Find similar

British Airways flights from Northern Ireland to California

Our best British Airways deals on Northern Ireland to California flight tickets
British Airways
Jan 29
BHD11:05 amBelfast City
37h 30m
2 stops
LAX4:35 pmLos Angeles
Feb 2
LAX7:25 pmLos Angeles
15h 10m
1 stop
BHD6:35 pmBelfast City
$805
Find similar
British Airways
Jan 29
BHD10:40 amBelfast City
15h 50m
1 stop
LAX6:30 pmLos Angeles
Feb 2
LAX3:30 pmLos Angeles
16h 35m
1 stop
BHD4:05 pmBelfast City
$806
Find similar
British Airways
Jan 22
BHD11:05 amBelfast City
19h 35m
2 stops
SFO10:40 pmSan Francisco
Jan 26
SFO3:50 pmSan Francisco
20h 25m
2 stops
BHD8:15 pmBelfast City
$810
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Northern Ireland to California 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 December 9, 2025.
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

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Thu 1/22

4:35 pm-5:00 pm

2 stops32h 25m

Los Angeles

Thu 1/29

7:30 pm-10:20 pm

2 stops18h 50m

$706

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Wed 1/21

4:25 pm-5:00 pm

2 stops32h 35m

Los Angeles

Wed 1/28

7:30 pm-10:10 pm

2 stops18h 40m

$751

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Mon 1/19

6:35 am-3:20 pm

1 stop16h 45m

Los Angeles

Tue 1/27

5:30 pm-4:45 pm

1 stop15h 15m

$766

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Mon 1/19

5:20 pm-6:53 pm

2 stops33h 33m

Los Angeles

Tue 1/27

12:20 pm-4:50 pm

2 stops20h 30m

$776

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Thu 1/29

11:05 am-4:35 pm

2 stops37h 30m

Los Angeles

Mon 2/2

4:45 pm-4:05 pm

2 stops15h 20m

$805

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 1/22

8:00 pm-3:00 pm

1 stop27h 00m

San Francisco

Mon 1/26

2:36 pm-4:05 pm

2 stops17h 29m

$805

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Thu 1/29

10:40 am-6:30 pm

1 stop15h 50m

Los Angeles

Mon 2/2

3:30 pm-4:05 pm

1 stop16h 35m

$806

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Thu 1/29

11:05 am-12:31 am

2 stops21h 26m

Los Angeles

Mon 2/2

10:50 am-2:15 pm

2 stops19h 25m

$954

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 2/4

11:25 am-7:12 pm

2 stops39h 47m

San Francisco

Wed 2/18

8:40 pm-2:00 pm

1 stop33h 20m

$1,512

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 2/4

5:20 pm-11:50 am

1 stop26h 30m

San Francisco

Wed 2/18

1:55 pm-4:50 pm

1 stop18h 55m

$1,564

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 California from

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

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

You could potentially save up to 34% 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

Fastest flight time

15h 10m

Direct flights

None
The fastest flight from Northern Ireland to California takes 15h 10m
There are no direct flights from Northern Ireland to California. There are no popular flight routes from Northern Ireland to California.
Search flight deals

  • 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.

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