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

British Airways and American Airlines are the most popular carriers operating from Northern Ireland to California

When did momondo last update prices for flights from Northern Ireland to California?

Prices for flights from Northern Ireland to California are refreshed on a daily basis.

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

As of May 2026, there is 1 operator available to choose from for flights from Northern Ireland to California.

How old do you have to be to fly from Northern Ireland to California?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to California.

What documentation or ID do you need to fly to California?

The travel and health documents required for your trip to California can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at California. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£294 Cheap Flights from Northern Ireland to California in 2026

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Find the cheapest flights from Northern Ireland to California

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

11:00 - 20:00

BHD

LAS

17h 00m

1 stop

22:10 - 19:20

LAS

BHD

13h 10m

1 stop

£643British Airways

Fri, 7 Aug - Sat, 15 Aug

17:30 - 11:45

BHD

SFO

26h 15m

1 stop

14:00 - 16:55

SFO

BHD

18h 55m

2 stops

£656KLM

Mon, 31 Aug - Thu, 24 Sep

15:20 - 17:40

BHD

SFO

34h 20m

1 stop

16:35 - 15:30

SFO

BHD

14h 55m

1 stop

£665British Airways

Mon, 31 Aug - Thu, 24 Sep

06:30 - 13:50

BHD

SFO

15h 20m

1 stop

16:31 - 18:45

SFO

BHD

18h 14m

2 stops

£675British Airways

Wed, 2 Sep - Sun, 6 Sep

17:30 - 15:50

BHD

SFO

30h 20m

2 stops

15:16 - 16:55

SFO

BHD

17h 39m

2 stops

£681Virgin Atlantic

Mon, 31 Aug - Thu, 24 Sep

09:40 - 11:40

BHD

LAX

34h 00m

1 stop

20:55 - 18:55

LAX

BHD

14h 00m

1 stop

£698Finnair

Tue, 14 Jul - Tue, 21 Jul

09:50 - 00:36

BHD

SFO

22h 46m

2 stops

22:45 - 16:55

SFO

BHD

34h 10m

2 stops

£714KLM

Thu, 3 Sep - Sun, 13 Sep

16:25 - 11:40

BHD

LAX

27h 15m

1 stop

17:05 - 18:55

LAX

BHD

17h 50m

1 stop

£739American Airlines

Tue, 14 Jul - Tue, 21 Jul

09:40 - 10:19

BHD

LAX

32h 39m

2 stops

20:55 - 18:55

LAX

BHD

14h 00m

1 stop

£756Finnair

Tue, 14 Jul - Tue, 21 Jul

10:05 - 22:26

BHD

LAS

20h 21m

2 stops

08:53 - 10:10

LAS

BHD

17h 17m

2 stops

£774American Airlines

Wed, 23 Sep - Thu, 8 Oct

British Airways flights from Northern Ireland to California

Our best British Airways deals on Northern Ireland to California flight tickets

British Airways

7 Aug

BHD11:00Belfast City

17h 00m

1 stop

LAS20:00Las Vegas Harry Reid Intl

15 Aug

LAS22:10Las Vegas Harry Reid Intl

13h 10m

1 stop

BHD19:20Belfast City

£643

British Airways

31 Aug

BHD15:20Belfast City

34h 20m

1 stop

SFO17:40San Francisco

24 Sept

SFO16:35San Francisco

14h 55m

1 stop

BHD15:30Belfast City

£665

British Airways

2 Sept

BHD06:30Belfast City

15h 20m

1 stop

SFO13:50San Francisco

6 Sept

SFO16:31San Francisco

18h 14m

2 stops

BHD18:45Belfast City

£675

Finnair flights from Northern Ireland to California

Our best Finnair deals on Northern Ireland to California flight tickets

Finnair

14 Jul

BHD09:40Belfast City

34h 00m

1 stop

LAX11:40Los Angeles

21 Jul

LAX20:55Los Angeles

14h 00m

1 stop

BHD18:55Belfast City

£698

Finnair

14 Jul

BHD09:40Belfast City

32h 39m

2 stops

LAX10:19Los Angeles

21 Jul

LAX20:55Los Angeles

14h 00m

1 stop

BHD18:55Belfast City

£756

momondo Fare Finder

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

Cheapest return flight

Fastest return journey

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Fri 7/8

11:00-20:00

1 stop17h 00m

Las Vegas Harry Reid Intl

Sat 15/8

22:10-19:20

1 stop13h 10m

£643

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 31/8

17:30-11:45

1 stop26h 15m

San Francisco

Thu 24/9

14:00-16:55

2 stops18h 55m

£656

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 31/8

15:20-17:40

1 stop34h 20m

San Francisco

Thu 24/9

16:35-15:30

1 stop14h 55m

£665

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 2/9

06:30-13:50

1 stop15h 20m

San Francisco

Sun 6/9

16:31-18:45

2 stops18h 14m

£675

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 31/8

17:30-15:50

2 stops30h 20m

San Francisco

Thu 24/9

15:16-16:55

2 stops17h 39m

£681

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Tue 14/7

09:40-11:40

1 stop34h 00m

Los Angeles

Tue 21/7

20:55-18:55

1 stop14h 00m

£698

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 3/9

09:50-00:36

2 stops22h 46m

San Francisco

Sun 13/9

22:45-16:55

2 stops34h 10m

£714

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Tue 14/7

16:25-11:40

1 stop27h 15m

Los Angeles

Tue 21/7

17:05-18:55

1 stop17h 50m

£739

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Tue 14/7

09:40-10:19

2 stops32h 39m

Los Angeles

Tue 21/7

20:55-18:55

1 stop14h 00m

£756

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Wed 23/9

10:05-22:26

2 stops20h 21m

Las Vegas Harry Reid Intl

Thu 8/10

08:53-10:10

2 stops17h 17m

£774

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to California?

If you are unable to visit California during the month of November, then departing from Northern Ireland during the month September is also very affordable. Most momondo users find prices during this month for around £410.

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

You could potentially save up to 3% 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 20m
Direct flights	None

The fastest flight from Northern Ireland to California takes 15h 20m

There are no direct flights from Northern Ireland to California. There are no popular flight routes from Northern Ireland to California.

Search flight deals

Frequently asked questions about flying from Northern Ireland to California

When did momondo last update prices for flights from Northern Ireland to California?
Prices for flights from Northern Ireland to California are refreshed on a daily basis.
How many operators does momondo search for flights from Northern Ireland to California?
As of May 2026, there is 1 operator available to choose from for flights from Northern Ireland to California.
How old do you have to be to fly from Northern Ireland to California?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to California.
What documentation or ID do you need to fly to California?
The travel and health documents required for your trip to California can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at California. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Northern Ireland to California

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £409	Free Cancellation	Rating 6.7 8,007 reviews		Search British Airways flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Northern Ireland to California for you.

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

Yes. momondo enables you to select and highlight flights to California from Northern Ireland with this policy.

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

momondo provides multiple filters to help you find the best flight to California from Northern Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Northern Ireland to California flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.