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 30m. Fly via British Airways, Delta, or KLM to get the fastest option. Northern Ireland and California are separated by a distance of 5128 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.

£295+ 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 8 August 2026.

Fri 4/906:30 -

1 stop16h 30m

Fri 11/920:55 -

1 stop15h 40m

Deal found 7/8£622

Fri 11/906:05 -

2 stops18h 25m

Tue 15/919:35 -

2 stops17h 30m

Deal found 4/8£627

Thu 3/917:30 -

1 stop26h 20m

Mon 7/907:35 -

2 stops17h 45m

Deal found 3/8£641

Tue 1/906:30 -

1 stop15h 20m

Tue 8/919:30 -

1 stop16h 10m

Deal found 4/8£641

Sun 20/909:45 -

1 stop34h 00m

Sun 27/913:45 -

1 stop19h 10m

Deal found 6/8£649

Sun 20/909:45 -

1 stop34h 00m

Sun 27/906:35 -

2 stops18h 45m

Deal found 8/8£654

Thu 3/906:30 -

1 stop16h 30m

Mon 7/920:55 -

1 stop13h 50m

Deal found 3/8£659

Wed 25/1111:25 -

1 stop15h 10m

Sun 29/1120:50 -

1 stop15h 25m

Deal found 4/8£661

Wed 25/1106:35 -

2 stops25h 17m

Sun 29/1113:27 -

2 stops19h 23m

Deal found 4/8£666

Thu 29/1006:35 -

2 stops22h 29m

Mon 2/1108:47 -

2 stops17h 53m

Deal found 3/8£666

Wed 2/1209:15 -

2 stops20h 55m

Sun 6/1210:41 -

2 stops19h 14m

Deal found 6/8£667

Mon 21/920:55 -

2 stops27h 35m

Wed 30/917:30 -

2 stops18h 45m

Deal found 6/8£668

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 8 August 2026.

Fri 4/906:30 -

1 stop16h 30m

Fri 11/920:55 -

1 stop15h 40m

Deal found 7/8£622

Fri 11/906:05 -

2 stops18h 25m

Tue 15/919:35 -

2 stops17h 30m

Deal found 4/8£627

Thu 3/917:30 -

1 stop26h 20m

Mon 7/907:35 -

2 stops17h 45m

Deal found 3/8£641

Sun 20/909:45 -

1 stop34h 00m

Sun 27/906:35 -

2 stops18h 45m

Deal found 8/8£654

Tue 1/917:30 -

2 stops35h 32m

Tue 8/909:55 -

2 stops39h 25m

Deal found 4/8£672

Thu 3/906:30 -

2 stops18h 27m

Tue 8/918:02 -

2 stops16h 53m

Deal found 5/8£710

Wed 25/1111:25 -

1 stop15h 10m

Sun 29/1120:50 -

1 stop15h 25m

Deal found 4/8£661

Fri 4/909:50 -

2 stops20h 10m

Fri 11/911:15 -

2 stops38h 00m

Deal found 7/8£662

Sun 20/917:30 -

2 stops38h 21m

Sun 27/905:45 -

2 stops43h 35m

Deal found 8/8£677

Sun 20/921:10 -

3 stops32h 45m

Sun 27/908:10 -

3 stops31h 00m

Deal found 6/8£687

Fri 11/909:50 -

2 stops21h 46m

Wed 16/907:05 -

2 stops18h 15m

Deal found 7/8£727

Wed 25/1106:35 -

2 stops25h 17m

Sun 29/1113:27 -

2 stops19h 23m

Deal found 4/8£666

Fri 18/920:15 -

2 stops33h 34m

Sun 27/908:10 -

3 stops29h 45m

Deal found 7/8£697

Sat 3/1017:30 -

1 stop33h 05m

Sat 10/1020:25 -

1 stop28h 55m

Deal found 8/8£707

Thu 29/1006:35 -

2 stops22h 29m

Mon 2/1109:12 -

2 stops21h 03m

Deal found 4/8£666

Fri 11/906:05 -

3 stops37h 37m

Wed 16/912:45 -

2 stops19h 10m

Deal found 7/8£703

Wed 2/1211:25 -

2 stops18h 45m

Sun 6/1207:45 -

2 stops22h 10m

Deal found 5/8£667

Tue 1/916:05 -

2 stops30h 35m

Tue 8/916:45 -

2 stops20h 35m

Deal found 4/8£708

Wed 14/1006:30 -

1 stop15h 20m

Sun 18/1006:00 -

2 stops20h 30m

Deal found 4/8£684

Mon 21/909:10 -

2 stops31h 10m

Wed 30/910:40 -

3 stops28h 30m

Deal found 6/8£711

Wed 2/1209:15 -

1 stop17h 30m

Sun 6/1220:35 -

1 stop14h 05m

Deal found 6/8£685

Thu 3/909:50 -

2 stops20h 02m

Mon 7/907:05 -

2 stops18h 15m

Deal found 3/8£931

Thu 3/922:45 -

1 stop22h 45m

Tue 8/920:25 -

2 stops16h 55m

Deal found 5/8£748

Thu 26/1106:35 -

1 stop20h 15m

Sun 29/1114:07 -

2 stops18h 43m

Deal found 4/8£740

Thu 3/915:50 -

2 stops34h 45m

Sat 12/920:25 -

2 stops16h 15m

Deal found 5/8£752

Thu 26/1107:40 -

1 stop19h 10m

Mon 30/1120:55 -

1 stop15h 20m

Deal found 3/8£741

Thu 22/1020:40 -

2 stops33h 00m

Tue 3/1122:20 -

1 stop27h 15m

Deal found 3/8£753

Wed 11/1117:40 -

1 stop33h 10m

Sun 15/1109:29 -

2 stops16h 51m

Deal found 5/8£742

Sat 24/1020:15 -

2 stops33h 18m

Tue 3/1122:20 -

1 stop27h 15m

Deal found 3/8£759

Thu 3/914:25 -

1 stop35h 05m

Mon 7/917:30 -

2 stops21h 50m

Deal found 3/8£774

Find flight deals from Northern Ireland to California

Round-trip from	£622
One-way from	£295

British Airways
4/9-11/9
2 total stops
32h 10m total
Northern Ireland to California

Search Deals

4/11
3 total stops
52h 05m 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

BHDLAX

Belfast City

Fri 4/9

06:30-15:00

1 stop16h 30m

Los Angeles

Fri 11/9

20:55-20:35

1 stop15h 40m

£622

BelfastLos Angeles

BFS Belfast Intl - LAX Los Angeles

BFSLAX

Belfast Intl

Fri 11/9

06:05-16:30

2 stops18h 25m

Los Angeles

Tue 15/9

19:35-21:05

2 stops17h 30m

£627

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Thu 3/9

17:30-11:50

1 stop26h 20m

Los Angeles

Mon 7/9

07:35-09:20

2 stops17h 45m

£641

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Sun 20/9

09:45-11:45

1 stop34h 00m

San Francisco

Sun 27/9

06:35-09:20

2 stops18h 45m

£654

Fastest return journey

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Wed 25/11

11:25-18:35

1 stop15h 10m

Los Angeles

Sun 29/11

20:50-20:15

1 stop15h 25m

£661

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Fri 4/9

09:50-22:00

2 stops20h 10m

Los Angeles

Fri 11/9

11:15-09:15

2 stops38h 00m

£662

BelfastOntario

BHD Belfast City - ONT Ontario

BHDONT

Belfast City

Wed 25/11

06:35-23:52

2 stops25h 17m

Ontario

Sun 29/11

13:27-16:50

2 stops19h 23m

£666

BelfastSanta Ana

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

BHDSNA

Belfast City

Thu 29/10

06:35-22:04

2 stops22h 29m

Santa Ana J. Wayne/Orange Cnty

Mon 2/11

09:12-14:15

2 stops21h 03m

£666

BelfastSanta Ana

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

BHDSNA

Belfast City

Wed 2/12

11:25-22:10

2 stops18h 45m

Santa Ana J. Wayne/Orange Cnty

Sun 6/12

07:45-13:55

2 stops22h 10m

£667

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Tue 1/9

17:30-21:02

2 stops35h 32m

San Francisco

Tue 8/9

09:55-09:20

2 stops39h 25m

£672

Flights are sorted by cheapest return flights first.

Deals found on 4/8

Showing 1-10 of 50 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-LAX

BHD-SFO

BHD-ONT

BHD-SNA

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-LAX

BHD-SFO

BHD-ONT

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

8,153 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

8,153 reviews

British Airways

6.7

Okay

8,153 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 30m. Fly via British Airways, Delta, or KLM to get the fastest option. Northern Ireland and California are separated by a distance of 5128 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

Other flight options

Popular flights

Return Flight Options

Top destinations

Alternative routes for Northern Ireland to California

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Top airline flying from Northern Ireland to California

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£455	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 £295

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 4/11. 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 8 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 8 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 8 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 8 August 2026.

Last-minute flights from Northern Ireland to CaliforniaDiscover last-minute flight deals from Northern Ireland to California. Data last updated 8 August 2026 and is based on user searches.

Discover last-minute flight deals from Northern Ireland to California. Data last updated 8 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 8 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 8 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 8 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 8 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 8 August 2026.

Last-minute flights from Northern Ireland to California
Discover last-minute flight deals from Northern Ireland to California. Data last updated 8 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 8 August 2026.