How long is the flight from Northern Ireland to California?

There are many flights that can get you from Northern Ireland to California in 16h 20m. Fly via American Airlines, British Airways, or Delta to get the fastest option. Northern Ireland and California are separated by a distance of 5038 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.

£407+ 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 20 August 2026.

Mon 12/1008:45 -

1 stop20h 20m

Fri 23/1014:00 -

2 stops22h 30m

Deal found 19/8£555

Mon 21/920:55 -

2 stops27h 35m

Sun 27/917:30 -

2 stops20h 25m

Deal found 18/8£587

Mon 12/1006:40 -

2 stops33h 40m

Fri 23/1006:45 -

3 stops25h 45m

Deal found 19/8£606

Tue 29/920:55 -

2 stops27h 35m

Tue 6/1019:35 -

2 stops17h 30m

Deal found 15/8£623

Mon 21/909:40 -

1 stop18h 35m

Sun 27/915:50 -

1 stop14h 45m

Deal found 18/8£627

Mon 21/917:30 -

1 stop26h 20m

Sun 27/912:09 -

2 stops20h 46m

Deal found 18/8£643

Thu 3/906:30 -

1 stop15h 20m

Mon 7/919:30 -

1 stop15h 55m

Deal found 15/8£644

Wed 14/1020:35 -

1 stop23h 00m

Sun 18/1015:45 -

1 stop14h 50m

Deal found 14/8£660

Wed 2/920:35 -

1 stop23h 10m

Sun 6/920:55 -

1 stop13h 50m

Deal found 16/8£663

Wed 7/1011:35 -

2 stops28h 47m

Sun 11/1008:45 -

2 stops17h 45m

Deal found 18/8£664

Mon 14/917:30 -

1 stop26h 15m

Mon 21/907:00 -

2 stops18h 20m

Deal found 17/8£665

Tue 15/917:30 -

1 stop26h 15m

Tue 22/909:00 -

2 stops23h 55m

Deal found 18/8£666

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 20 August 2026.

Mon 12/1008:45 -

1 stop20h 20m

Fri 23/1015:50 -

1 stop20h 40m

Deal found 19/8£557

Mon 21/909:40 -

1 stop18h 35m

Sun 27/915:50 -

1 stop14h 45m

Deal found 18/8£627

Sat 30/106:35 -

1 stop16h 20m

Thu 4/217:25 -

1 stop17h 20m

Deal found 15/8£639

Wed 16/909:50 -

2 stops18h 28m

Wed 23/906:35 -

2 stops18h 45m

Deal found 18/8£675

Thu 10/909:50 -

1 stop16h 45m

Sun 20/906:20 -

2 stops19h 00m

Deal found 19/8£721

Fri 8/115:40 -

2 stops41h 36m

Tue 12/114:45 -

2 stops21h 45m

Deal found 19/8£589

Wed 14/1011:35 -

1 stop16h 35m

Sun 18/1012:09 -

2 stops18h 26m

Deal found 14/8£660

Mon 12/1006:40 -

2 stops33h 40m

Fri 23/1006:45 -

3 stops25h 45m

Deal found 19/8£606

Fri 13/1108:35 -

1 stop15h 15m

Sun 15/1109:48 -

2 stops16h 57m

Deal found 16/8£661

Thu 3/909:35 -

2 stops18h 48m

Mon 7/919:30 -

1 stop14h 00m

Deal found 15/8£661

Sat 19/906:20 -

2 stops18h 10m

Sat 26/919:35 -

2 stops19h 05m

Deal found 18/8£671

Wed 4/1106:35 -

2 stops20h 35m

Sun 8/1113:23 -

2 stops19h 27m

Deal found 18/8£664

Wed 30/907:30 -

2 stops18h 55m

Wed 7/1020:10 -

2 stops18h 10m

Deal found 16/8£701

Wed 7/1011:35 -

2 stops28h 47m

Sun 11/1008:45 -

2 stops17h 45m

Deal found 18/8£664

Thu 3/909:00 -

1 stop18h 10m

Mon 7/919:50 -

1 stop18h 10m

Deal found 15/8£712

Thu 21/106:30 -

2 stops20h 22m

Sun 24/112:43 -

2 stops17h 07m

Deal found 18/8£672

Tue 29/906:15 -

3 stops24h 40m

Tue 6/1008:15 -

3 stops31h 05m

Deal found 15/8£714

Wed 20/106:35 -

2 stops23h 26m

Sun 24/107:00 -

2 stops22h 50m

Deal found 16/8£672

Wed 30/906:15 -

3 stops47h 25m

Wed 7/1006:50 -

3 stops28h 25m

Deal found 16/8£742

Thu 5/1106:30 -

1 stop20h 15m

Sun 8/1112:00 -

2 stops20h 50m

Deal found 15/8£684

Wed 2/1208:40 -

1 stop18h 05m

Sun 6/1220:35 -

1 stop15h 35m

Deal found 15/8£684

Wed 23/915:40 -

2 stops34h 55m

Sun 27/918:45 -

1 stop18h 45m

Deal found 19/8£790

Wed 14/1006:30 -

1 stop15h 20m

Sun 18/1019:30 -

1 stop14h 10m

Deal found 16/8£684

Sun 4/1022:10 -

2 stops28h 25m

Sun 11/1018:45 -

1 stop18h 45m

Deal found 19/8£800

Fri 2/1021:05 -

3 stops34h 15m

Fri 9/1015:05 -

3 stops24h 15m

Deal found 18/8£810

Wed 11/1117:35 -

1 stop33h 15m

Sun 15/1114:36 -

2 stops18h 14m

Deal found 14/8£739

Mon 14/920:55 -

2 stops27h 20m

Sun 20/919:35 -

2 stops20h 00m

Deal found 17/8£813

Thu 19/1120:00 -

1 stop30h 50m

Mon 23/1114:07 -

2 stops19h 18m

Deal found 18/8£740

Sat 30/123:00 -

3 stops47h 45m

Thu 4/215:10 -

2 stops22h 45m

Deal found 15/8£818

Wed 2/906:30 -

2 stops24h 05m

Sun 13/917:34 -

2 stops19h 01m

Deal found 18/8£745

Find flight deals from Northern Ireland to California

Round-trip from	£555
One-way from	£407

12/10-23/10
3 total stops
42h 50m total
Northern Ireland to California

Search Deals

British Airways
16/10
1 total stop
16h 10m 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

BHD Belfast City - LAX Los Angeles Los Angeles

BHDLAX

Belfast City

Mon 12/10

08:45-21:05

1 stop20h 20m

Los Angeles Los Angeles

Fri 23/10

15:50-20:30

1 stop20h 40m

£557

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Fri 8/1

15:40-01:16

2 stops41h 36m

San Francisco

Tue 12/1

14:45-20:30

2 stops21h 45m

£589

BelfastLos Angeles

BFS Belfast Intl - LAX Los Angeles Los Angeles

BFSLAX

Belfast Intl

Mon 12/10

06:40-08:20

2 stops33h 40m

Los Angeles Los Angeles

Fri 23/10

06:45-16:30

3 stops25h 45m

£606

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles Los Angeles

BHDLAX

Belfast City

Mon 21/9

09:40-20:15

1 stop18h 35m

Los Angeles Los Angeles

Sun 27/9

15:50-14:35

1 stop14h 45m

£627

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Sat 30/1

06:35-14:55

1 stop16h 20m

San Francisco

Thu 4/2

17:25-18:45

1 stop17h 20m

£639

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles Los Angeles

BHDLAX

Belfast City

Wed 14/10

11:35-20:10

1 stop16h 35m

Los Angeles Los Angeles

Sun 18/10

12:09-14:35

2 stops18h 26m

£660

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles Los Angeles

BHDLAX

Belfast City

Fri 13/11

08:35-15:50

1 stop15h 15m

Los Angeles Los Angeles

Sun 15/11

09:48-10:45

2 stops16h 57m

£661

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 3/9

09:35-20:23

2 stops18h 48m

San Francisco

Mon 7/9

19:30-17:30

1 stop14h 00m

£661

BelfastSanta Ana

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

BHDSNA

Belfast City

Wed 4/11

06:35-19:10

2 stops20h 35m

Santa Ana J. Wayne/Orange Cnty

Sun 8/11

13:23-16:50

2 stops19h 27m

£664

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

£664

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 45 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.

BHD-LAX

BHD-SFO

BHD-LAS

BFS-SFO

BFS-LAX

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

BHD-LAX

BHD-SFO

BHD-LAS

BFS-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

8,179 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

8,179 reviews

British Airways

6.7

Okay

8,179 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 16h 20m. Fly via American Airlines, British Airways, or Delta to get the fastest option. Northern Ireland and California are separated by a distance of 5038 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

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

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Popular flights

Return Flight Options

Top destinations

Alternative routes for Northern Ireland to California

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Stansted to Las Vegas flights

Luton to Miami flights

London City to Boston flights

Edinburgh to Newark flights

Heathrow to Ontario flights

Heathrow to Sky Harbor Intl flights

Top airline flying from Northern Ireland to California

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£451	Average£623	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 £407

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 16/10. 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 20 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 20 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 20 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 20 August 2026.

Last-minute flights from Northern Ireland to CaliforniaDiscover last-minute flight deals from Northern Ireland to California. Data last updated 20 August 2026 and is based on user searches.

Discover last-minute flight deals from Northern Ireland to California. Data last updated 20 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 20 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 20 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 20 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 20 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 20 August 2026.

Last-minute flights from Northern Ireland to California
Discover last-minute flight deals from Northern Ireland to California. Data last updated 20 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 20 August 2026.