How long is the flight from Northern Ireland to California?

There are many flights that can get you from Northern Ireland to California in 18h 07m. Fly via British Airways, KLM, or Delta to get the fastest option. Northern Ireland and California are separated by a distance of 5126 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in California ranges from 0.0 - 87.0 inches per month. February is typically the wettest month, when rainfall can reach 87.0 mm. July is typically the driest time to visit California when rainfall is around 0.0 mm.

If weather is an important factor for your trip to California, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

What is the cheapest time of day to fly from NIR to CA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Northern Ireland to California as you normally would.

Can I find deals for flights from Northern Ireland to California that include hotel bookings?

Yes. In addition to deals on Northern Ireland to California flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Northern Ireland to California?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to California.

Can I find deals for business class flights from Northern Ireland to California?

Yes. Cheapflights offers flight deals from Northern Ireland to California by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£325+ Cheap Flights from Northern Ireland to California

Cheap flight deals from Northern Ireland to California

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Northern Ireland to California
Explore the most affordable flight options available from Northern Ireland to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Thu 10/920:10 -

2 stops28h 20m

Wed 16/917:30 -

2 stops18h 45m

Deal found 11/8£628

Mon 21/908:15 -

2 stops35h 25m

Wed 30/918:25 -

2 stops18h 00m

Deal found 11/8£629

Wed 9/910:05 -

2 stops18h 07m

Tue 15/911:34 -

2 stops19h 46m

Deal found 10/8£635

Mon 24/809:50 -

2 stops19h 13m

Wed 9/915:10 -

2 stops17h 45m

Deal found 9/8£646

Mon 24/817:30 -

1 stop26h 20m

Wed 9/906:40 -

2 stops18h 40m

Deal found 9/8£648

Mon 7/917:30 -

1 stop26h 15m

Mon 14/913:45 -

1 stop35h 35m

Deal found 10/8£652

Wed 30/917:30 -

2 stops36h 54m

Mon 19/1023:15 -

2 stops26h 05m

Deal found 12/8£656

Sat 5/906:20 -

2 stops18h 10m

Tue 8/919:35 -

2 stops17h 30m

Deal found 14/8£657

Mon 24/806:30 -

1 stop21h 50m

Wed 9/918:05 -

1 stop16h 40m

Deal found 9/8£659

Wed 14/1010:05 -

1 stop18h 05m

Sun 18/1010:35 -

2 stops20h 00m

Deal found 13/8£663

Wed 7/1011:35 -

2 stops28h 47m

Sun 11/1008:45 -

2 stops17h 45m

Deal found 13/8£666

Wed 9/916:35 -

2 stops30h 05m

Tue 15/916:45 -

2 stops22h 15m

Deal found 10/8£670

Best flights from Northern Ireland to California
Discover carefully curated flight deals from Northern Ireland to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Mon 21/908:15 -

2 stops35h 25m

Wed 30/918:25 -

2 stops18h 00m

Deal found 11/8£629

Wed 9/910:05 -

2 stops18h 07m

Tue 15/911:34 -

2 stops19h 46m

Deal found 10/8£635

Mon 24/809:50 -

2 stops19h 13m

Wed 9/915:10 -

2 stops17h 45m

Deal found 9/8£646

Mon 24/817:30 -

1 stop26h 20m

Wed 9/906:40 -

2 stops18h 40m

Deal found 9/8£648

Mon 7/917:30 -

2 stops51h 43m

Mon 14/907:10 -

2 stops25h 45m

Deal found 10/8£677

Mon 7/917:30 -

1 stop26h 15m

Mon 14/913:45 -

1 stop35h 35m

Deal found 10/8£652

Sat 5/906:20 -

2 stops18h 10m

Tue 8/919:35 -

2 stops17h 30m

Deal found 14/8£657

Wed 14/1010:05 -

1 stop18h 05m

Sun 18/1010:35 -

2 stops20h 00m

Deal found 13/8£663

Wed 30/917:30 -

2 stops36h 54m

Mon 19/1023:15 -

2 stops26h 05m

Deal found 12/8£656

Wed 7/1011:35 -

2 stops28h 47m

Sun 11/1008:45 -

2 stops17h 45m

Deal found 13/8£666

Fri 4/921:30 -

3 stops42h 50m

Tue 8/910:40 -

2 stops25h 00m

Deal found 12/8£694

Wed 2/1206:35 -

2 stops20h 35m

Sun 6/1210:45 -

2 stops22h 05m

Deal found 13/8£666

Fri 25/906:05 -

2 stops24h 17m

Fri 2/1006:50 -

3 stops25h 40m

Deal found 11/8£722

Wed 20/108:40 -

2 stops22h 05m

Sun 24/106:00 -

2 stops23h 50m

Deal found 13/8£674

Thu 21/108:50 -

2 stops21h 11m

Sun 24/110:31 -

2 stops24h 19m

Deal found 13/8£674

Mon 7/920:55 -

2 stops22h 50m

Mon 14/915:05 -

2 stops20h 15m

Deal found 10/8£760

Thu 5/1106:30 -

1 stop16h 25m

Sun 8/1120:35 -

1 stop14h 15m

Deal found 13/8£686

Wed 9/906:15 -

3 stops36h 05m

Tue 15/908:30 -

2 stops22h 45m

Deal found 10/8£768

Wed 2/1206:35 -

1 stop16h 20m

Sun 6/1207:21 -

2 stops19h 24m

Deal found 13/8£686

Sat 12/921:40 -

2 stops32h 42m

Fri 18/916:20 -

1 stop20h 55m

Deal found 9/8£823

Wed 11/1117:35 -

1 stop33h 15m

Sun 15/1114:36 -

2 stops18h 14m

Deal found 13/8£741

Fri 11/906:05 -

3 stops38h 10m

Thu 17/908:30 -

2 stops26h 25m

Deal found 12/8£826

Fri 18/920:15 -

2 stops33h 34m

Sun 27/908:10 -

3 stops29h 45m

Deal found 9/8£841

Thu 3/906:10 -

3 stops24h 12m

Thu 10/920:25 -

2 stops18h 55m

Deal found 12/8£846

Thu 10/906:10 -

2 stops23h 39m

Thu 17/908:30 -

2 stops26h 25m

Deal found 10/8£852

Sat 26/910:10 -

2 stops30h 10m

Sat 3/1008:15 -

3 stops30h 25m

Deal found 12/8£862

Thu 10/908:20 -

3 stops22h 35m

Wed 16/906:45 -

3 stops26h 45m

Deal found 11/8£869

Thu 24/921:10 -

3 stops46h 50m

Thu 1/1008:30 -

2 stops19h 20m

Deal found 10/8£875

Mon 28/908:15 -

3 stops41h 00m

Mon 5/1017:50 -

2 stops21h 15m

Deal found 14/8£884

Find flight deals from Northern Ireland to California

Round-trip from	£628
One-way from	£325

10/9-16/9
4 total stops
47h 05m total
Northern Ireland to California

Search Deals

3/9
2 total stops
58h 53m total
Northern Ireland to California

Search Deals

Cheapflights 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

BelfastLos Angeles

BFS Belfast Intl - LAX Los Angeles Los Angeles

BFSLAX

Belfast Intl

Mon 21/9

08:15-11:40

2 stops35h 25m

Los Angeles Los Angeles

Wed 30/9

18:25-20:25

2 stops18h 00m

£629

BelfastSanta Ana

BHD Belfast City - SNA Santa Ana J. Wayne/Orange Cnty

BHDSNA

Belfast City

Wed 9/9

10:05-20:12

2 stops18h 07m

Santa Ana J. Wayne/Orange Cnty

Tue 15/9

11:34-15:20

2 stops19h 46m

£635

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles Los Angeles

BHDLAX

Belfast City

Mon 24/8

09:50-21:03

2 stops19h 13m

Los Angeles Los Angeles

Wed 9/9

15:10-16:55

2 stops17h 45m

£646

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles Los Angeles

BHDLAX

Belfast City

Mon 24/8

17:30-11:50

1 stop26h 20m

Los Angeles Los Angeles

Wed 9/9

06:40-09:20

2 stops18h 40m

£648

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Mon 7/9

17:30-11:45

1 stop26h 15m

San Francisco

Mon 14/9

13:45-09:20

1 stop35h 35m

£652

BelfastOntario

BHD Belfast City - ONT Ontario

BHDONT

Belfast City

Wed 30/9

17:30-22:24

2 stops36h 54m

Ontario

Mon 19/10

23:15-09:20

2 stops26h 05m

£656

BelfastLos Angeles

BFS Belfast Intl - LAX Los Angeles Los Angeles

BFSLAX

Belfast Intl

Sat 5/9

06:20-16:30

2 stops18h 10m

Los Angeles Los Angeles

Tue 8/9

19:35-21:05

2 stops17h 30m

£657

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles Los Angeles

BHDLAX

Belfast City

Wed 14/10

10:05-20:10

1 stop18h 05m

Los Angeles Los Angeles

Sun 18/10

10:35-14:35

2 stops20h 00m

£663

BelfastSanta Ana

BHD Belfast City - SNA Santa Ana J. Wayne/Orange Cnty

BHDSNA

Belfast City

Wed 7/10

11:35-08:22

2 stops28h 47m

Santa Ana J. Wayne/Orange Cnty

Sun 11/10

08:45-10:30

2 stops17h 45m

£666

BelfastSanta Ana

BHD Belfast City - SNA Santa Ana J. Wayne/Orange Cnty

BHDSNA

Belfast City

Wed 2/12

06:35-19:10

2 stops20h 35m

Santa Ana J. Wayne/Orange Cnty

Sun 6/12

10:45-16:50

2 stops22h 05m

£666

Flights are sorted by cheapest return flights first.

Deals found on 11/8

Showing 1-10 of 53 resultsSorted by cheapest first

...

Best time to book a flight from Northern Ireland to California

Have a flexible travel schedule? Discover the best time to fly to California from Northern Ireland with our price prediction graph.

BFS-LAX

BHD-SNA

BHD-LAX

BHD-SFO

BHD-ONT

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to California

GBNIR-USCA

BFS-LAX

BHD-SNA

BHD-LAX

BHD-SFO

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing California

Read through reviews of airlines operating flights from Northern Ireland to California, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

British Airways

6.7

Okay

8,156 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

British Airways

6.7

Okay

8,156 reviews

British Airways

6.7

Okay

8,156 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

How long is the flight from Northern Ireland to California?
There are many flights that can get you from Northern Ireland to California in 18h 07m. Fly via British Airways, KLM, or Delta to get the fastest option. Northern Ireland and California are separated by a distance of 5126 mi. This flight may include one or multiple stops.
Can I find deals for flights from Northern Ireland to California that include hotel bookings?
Yes. In addition to deals on Northern Ireland to California flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Northern Ireland to California?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to California.
Can I find deals for business class flights from Northern Ireland to California?
Yes. Cheapflights offers flight deals from Northern Ireland to California by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Direct flights to United States

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Popular flights

Return Flight Options

Top destinations

Alternative routes for Northern Ireland to California

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Stansted to Los Angeles flights

Manchester to LaGuardia flights

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Luton to Orlando flights

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Gatwick to O'Hare Intl flights

London City to O'Hare Intl flights

Stansted to O'Hare Intl flights

London City to Las Vegas flights

London City to San Francisco flights

Top airline flying from Northern Ireland to California

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£454	Average£624	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Northern Ireland to California?

Cheapflights makes it easy to find Northern Ireland to California flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to California?

Cheapflights simply makes it quick and affordable to book flights from Northern Ireland to California by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Northern Ireland to California with no change fees?

Need flexible booking options for your flight to California from Northern Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Northern Ireland to California become cheaper?

Yes! Start tracking prices for Northern Ireland to California flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Northern Ireland to California from £325

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Northern Ireland to California

Cheapest flights from Northern Ireland to CaliforniaExplore the most affordable flight options available from Northern Ireland to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Explore the most affordable flight options available from Northern Ireland to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Best flights from Northern Ireland to CaliforniaDiscover carefully curated flight deals from Northern Ireland to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Discover carefully curated flight deals from Northern Ireland to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Last-minute flights from Northern Ireland to CaliforniaDiscover last-minute flight deals from Northern Ireland to California. Data last updated 14 August 2026 and is based on user searches.

Discover last-minute flight deals from Northern Ireland to California. Data last updated 14 August 2026 and is based on user searches.

One-way flights from Northern Ireland to CaliforniaSearch for one-way flight options from Northern Ireland to California. Find affordable one-way fares based on user searches. Data last updated 14 August 2026.

Search for one-way flight options from Northern Ireland to California. Find affordable one-way fares based on user searches. Data last updated 14 August 2026.

Find flight deals from Northern Ireland to California

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Northern Ireland to California that are best for you.

Best time to book a flight from Northern Ireland to California

Have a flexible travel schedule? Discover the best time to fly to California from Northern Ireland with our price prediction graph.

Cheapflights Insights

Reviews of airlines servicing California

Read through reviews of airlines operating flights from Northern Ireland to California, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Northern Ireland to California?

Can I find deals for flights from Northern Ireland to California that include hotel bookings?

How can I find direct flights from Northern Ireland to California?

Can I find deals for business class flights from Northern Ireland to California?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Northern Ireland to California

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to California by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Northern Ireland to California by cabin class

Find flights from Northern Ireland to California, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Northern Ireland and California flights

Browse other Northern Ireland and California flight options. Last updated on 14 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from California

Find the right flight back to Northern Ireland after your stay in California

Northern Ireland to California flights

Consider these flights travelling from Northern Ireland to California.

Top airline flying from Northern Ireland to California

Fly with Cheapflights

How does Cheapflights help users find flights from Northern Ireland to California?

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to California?

Can Cheapflights find flights from Northern Ireland to California with no change fees?

Can Cheapflights notify me if prices for flights from Northern Ireland to California become cheaper?

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Travel Smart

Cheapest flights from Northern Ireland to California
Explore the most affordable flight options available from Northern Ireland to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Best flights from Northern Ireland to California
Discover carefully curated flight deals from Northern Ireland to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Last-minute flights from Northern Ireland to California
Discover last-minute flight deals from Northern Ireland to California. Data last updated 14 August 2026 and is based on user searches.

One-way flights from Northern Ireland to California
Search for one-way flight options from Northern Ireland to California. Find affordable one-way fares based on user searches. Data last updated 14 August 2026.