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Cheap flights from Northern Ireland to California from $378

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 4/29. 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 Northern Ireland to California

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:35 am - 3:50 pm
BHD
-
LAX
17h 15m
1 stop
British Airways Logo
10:00 pm - 8:15 pm
LAX
-
BHD
15h 15m
1 stop
$648British Airways
qua, mar 4 - dom, mar 8
British Airways Logo
11:25 am - 10:47 pm
BHD
-
LAX
19h 22m
2 stops
British Airways Logo
10:00 pm - 6:40 pm
LAX
-
BHD
13h 40m
1 stop
$654British Airways
qua, mar 4 - dom, mar 8
British Airways Logo
8:00 pm - 9:24 pm
BHD
-
ONT
33h 24m
2 stops
British Airways Logo
6:00 am - 10:40 am
ONT
-
BHD
20h 40m
2 stops
$673British Airways
qui, fev 12 - seg, fev 16
Multiple Airlines Logo
2:15 pm - 4:30 pm
BFS
-
SFO
34h 15m
2 stops
Multiple Airlines Logo
7:25 pm - 9:10 pm
SFO
-
BFS
17h 45m
2 stops
$686Multiple Airlines
seg, fev 23 - seg, mar 2
Multiple Airlines Logo
5:20 pm - 11:50 am
BHD
-
SFO
26h 30m
1 stop
Multiple Airlines Logo
1:55 pm - 4:45 pm
SFO
-
BHD
18h 50m
1 stop
$689Multiple Airlines
seg, fev 23 - seg, mar 2
American Airlines Logo
9:40 am - 8:00 pm
BHD
-
LAS
18h 20m
1 stop
American Airlines Logo
3:38 pm - 6:45 pm
LAS
-
BHD
19h 07m
2 stops
$769American Airlines
seg, jun 22 - seg, jul 13
American Airlines Logo
9:40 am - 8:16 pm
BHD
-
LAS
18h 36m
2 stops
American Airlines Logo
11:16 am - 3:30 pm
LAS
-
BHD
20h 14m
2 stops
$774American Airlines
ter, jun 23 - seg, jul 13
KLM Logo
9:50 am - 11:51 pm
BHD
-
ONT
22h 01m
2 stops
KLM Logo
6:00 am - 4:55 pm
ONT
-
BHD
26h 55m
2 stops
$999KLM
qua, abr 1 - dom, abr 5
Finnair Logo
11:30 am - 6:25 pm
BHD
-
LAX
14h 55m
1 stop
Finnair Logo
9:00 pm - 2:15 pm
LAX
-
BHD
33h 15m
1 stop
$2,022Finnair
sex, fev 6 - ter, fev 10
Finnair Logo
11:30 am - 6:25 pm
BHD
-
LAX
14h 55m
1 stop
Finnair Logo
9:00 pm - 2:15 pm
LAX
-
BHD
33h 15m
1 stop
$2,024Finnair
sex, fev 6 - ter, fev 10

British Airways flights from Northern Ireland to California

Our best British Airways deals on Northern Ireland to California flight tickets
British Airways
Feb 3
BHD3:05 pmBelfast City
32h 15m
1 stop
LAX3:20 pmLos Angeles
Feb 10
LAX6:00 amLos Angeles
20h 30m
2 stops
BHD10:30 amBelfast City
$617
British Airways
Mar 4
BHD6:35 amBelfast City
14h 55m
1 stop
LAX1:30 pmLos Angeles
Mar 8
LAX10:00 pmLos Angeles
15h 15m
1 stop
BHD8:15 pmBelfast City
$648
British Airways
Mar 4
BHD11:25 amBelfast City
19h 22m
2 stops
LAX10:47 pmLos Angeles
Mar 8
LAX10:00 pmLos Angeles
13h 40m
1 stop
BHD6:40 pmBelfast City
$654

American Airlines flights from Northern Ireland to California

Our best American Airlines deals on Northern Ireland to California flight tickets
American Airlines
Jun 29
BHD9:40 amBelfast City
16h 45m
1 stop
LAX6:25 pmLos Angeles
Jul 22
LAX8:55 pmLos Angeles
14h 55m
1 stop
BHD7:50 pmBelfast City
$678
American Airlines
Jun 30
BHD6:30 amBelfast City
19h 55m
1 stop
LAX6:25 pmLos Angeles
Jul 23
LAX4:25 pmLos Angeles
19h 00m
1 stop
BHD7:25 pmBelfast City
$689
American Airlines
Jun 22
BHD9:40 amBelfast City
18h 20m
1 stop
LAS8:00 pmLas Vegas Harry Reid Intl
Jul 14
LAS7:00 amLas Vegas Harry Reid Intl
19h 45m
2 stops
BHD10:45 amBelfast City
$769

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 janeiro 27, 2026.
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

BHD - LAX

BHDLAX

Belfast City

qua 3/4

6:35 am-3:50 pm

1 stop17h 15m

Los Angeles

dom 3/8

10:00 pm-8:15 pm

1 stop15h 15m

$648

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

qua 3/4

11:25 am-10:47 pm

2 stops19h 22m

Los Angeles

dom 3/8

10:00 pm-6:40 pm

1 stop13h 40m

$654

BelfastOntario

BHD - ONT

BHDONT

Belfast City

qui 2/12

8:00 pm-9:24 pm

2 stops33h 24m

Ontario

seg 2/16

6:00 am-10:40 am

2 stops20h 40m

$673

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

seg 2/23

2:15 pm-4:30 pm

2 stops34h 15m

San Francisco

seg 3/2

7:25 pm-9:10 pm

2 stops17h 45m

$686

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

seg 2/23

5:20 pm-11:50 am

1 stop26h 30m

San Francisco

seg 3/2

1:55 pm-4:45 pm

1 stop18h 50m

$689

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

seg 6/22

9:40 am-8:00 pm

1 stop18h 20m

Las Vegas Harry Reid Intl

seg 7/13

3:38 pm-6:45 pm

2 stops19h 07m

$769

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

ter 6/23

9:40 am-8:16 pm

2 stops18h 36m

Las Vegas Harry Reid Intl

seg 7/13

11:16 am-3:30 pm

2 stops20h 14m

$774

BelfastOntario

BHD - ONT

BHDONT

Belfast City

qua 4/1

9:50 am-11:51 pm

2 stops22h 01m

Ontario

dom 4/5

6:00 am-4:55 pm

2 stops26h 55m

$999

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

sex 2/6

11:30 am-6:25 pm

1 stop14h 55m

Los Angeles

ter 2/10

9:00 pm-2:15 pm

1 stop33h 15m

$2,022

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

sex 2/6

11:30 am-6:25 pm

1 stop14h 55m

Los Angeles

ter 2/10

9:00 pm-2:15 pm

1 stop33h 15m

$2,024

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 4% 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

14h 55m

Direct flights

None
The fastest flight from Northern Ireland to California takes 14h 55m
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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