How long is the flight from Northern Ireland to California?

There are many flights that can get you from Northern Ireland to California in 19h 01m. Fly via Virgin Atlantic, Delta, or American Airlines 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 month to fly from Northern Ireland to California?

Flights from Northern Ireland to California lean towards being more expensive in August. Prices are generally better when you fly from Northern Ireland to California in June, with the cheapest ticket starting at £404.

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.

£284+ Flights from Northern Ireland to California

Q: How much does it cost for a return flight from Northern Ireland to California?

Airfare is below average for this route at the moment. Northern Ireland to California flights typically cost between £779 and £1,365 in October. The cheapest return flight price found within the last 3 days was £448 on Multiple Airlines (1 Oct-8 Oct).

Cheap flight deals from Northern Ireland to California

Round-trip from	£448
One-way from	£284
Popular in	August
Cheapest in	June
Average price	£1,068

1/10-8/10
2 total stops
47h 20m total
Northern Ireland to California

Search Deals

15/12
3 total stops
34h 50m total
Northern Ireland to California

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£50 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (£29 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Northern Ireland to California

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 19 August 2025.

Wed 1/1006:10BFS - LAX

1 stop16h 00mMultiple Airlines

Wed 8/1016:30LAX - BFS

1 stop31h 20mMultiple Airlines

Deal found 17/8£448

Wed 1/1017:20BFS - SFO

2 stops29h 10mMultiple Airlines

Wed 8/1010:15SFO - BFS

3 stops24h 20mMultiple Airlines

Deal found 17/8£520

Thu 2/1016:00BFS - LAX

2 stops32h 20mMultiple Airlines

Thu 9/1019:30LAX - BFS

2 stops18h 10mMultiple Airlines

Deal found 18/8£539

Fri 7/1117:20BHD - LAX

1 stop26h 25mVirgin Atlantic

Sun 16/1113:40LAX - BHD

1 stop19h 10mVirgin Atlantic

Deal found 18/8£557

Fri 7/1106:30BHD - LAX

2 stops24h 00mDelta

Sun 16/1109:57LAX - BHD

2 stops22h 53mDelta

Deal found 18/8£566

Mon 15/922:45BFS - SFO

3 stops47h 50mMultiple Airlines

Mon 22/916:20SFO - BFS

2 stops22h 40mMultiple Airlines

Deal found 18/8£582

Mon 15/912:15BHD - SFO

2 stops19h 01mAmerican Airlines

Mon 22/919:20SFO - BHD

1 stop16h 15mAmerican Airlines

Deal found 18/8£588

Mon 15/906:40BHD - SFO

1 stop15h 10mBritish Airways

Mon 22/916:30SFO - BHD

1 stop15h 10mBritish Airways

Deal found 18/8£596

Wed 8/1007:25BFS - LAS

3 stops40h 30mMultiple Airlines

Sun 12/1008:00LAS - BFS

2 stops22h 55mMultiple Airlines

Deal found 18/8£598

Wed 1/1006:10BFS - LAS

2 stops23h 09mMultiple Airlines

Wed 8/1008:00LAS - BFS

2 stops26h 35mMultiple Airlines

Deal found 17/8£601

Wed 1/1006:30BHD - LAS

2 stops17h 50mKLM

Wed 8/1020:25LAS - BHD

1 stop12h 30mKLM

Deal found 17/8£672

Wed 1/1006:50BHD - LAS

2 stops20h 39mAmerican Airlines

Wed 8/1012:19LAS - BHD

2 stops17h 11mAmerican Airlines

Deal found 17/8£692

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 19 August 2025.

Wed 1/1006:10BFS - LAX

1 stop16h 00mMultiple Airlines

Wed 8/1016:30LAX - BFS

1 stop31h 20mMultiple Airlines

Deal found 17/8£448

Fri 7/1117:20BHD - LAX

1 stop26h 25mVirgin Atlantic

Sun 16/1113:40LAX - BHD

1 stop19h 10mVirgin Atlantic

Deal found 18/8£557

Fri 7/1106:30BHD - LAX

2 stops24h 00mDelta

Sun 16/1109:57LAX - BHD

2 stops22h 53mDelta

Deal found 18/8£566

Mon 15/912:15BHD - SFO

2 stops19h 01mAmerican Airlines

Mon 22/919:20SFO - BHD

1 stop16h 15mAmerican Airlines

Deal found 18/8£588

Mon 15/906:40BHD - SFO

1 stop15h 10mBritish Airways

Mon 22/916:30SFO - BHD

1 stop15h 10mBritish Airways

Deal found 18/8£596

Wed 1/1006:30BHD - LAS

2 stops17h 50mKLM

Wed 8/1020:25LAS - BHD

1 stop12h 30mKLM

Deal found 17/8£672

Wed 1/1020:15BHD - LAS

1 stop31h 40mAer Lingus

Tue 7/1001:10LAS - BHD

2 stops28h 20mAer Lingus

Deal found 17/8£921

Wed 1/1017:20BFS - SFO

2 stops29h 10mMultiple Airlines

Wed 8/1010:15SFO - BFS

3 stops24h 20mMultiple Airlines

Deal found 17/8£520

Thu 2/1016:00BFS - LAX

2 stops32h 20mMultiple Airlines

Thu 9/1019:30LAX - BFS

2 stops18h 10mMultiple Airlines

Deal found 18/8£539

Wed 1/1006:30BHD - LAS

2 stops23h 55mVirgin Atlantic

Wed 8/1020:25LAS - BHD

1 stop16h 50mVirgin Atlantic

Deal found 17/8£672

Wed 1/1006:50BHD - LAS

2 stops20h 39mAmerican Airlines

Wed 8/1012:19LAS - BHD

2 stops17h 11mAmerican Airlines

Deal found 17/8£692

Mon 15/922:45BFS - SFO

3 stops47h 50mMultiple Airlines

Mon 22/916:20SFO - BFS

2 stops22h 40mMultiple Airlines

Deal found 18/8£582

Last-minute flights from Northern Ireland to California
Discover last-minute flight deals from Northern Ireland to California. Data last updated 19 August 2025 and is based on user searches.

Tue 19/822:55BFS - LAX

2 stops52h 10mMultiple Airlines

Tue 26/820:05LAX - BFS

1 stop17h 25mMultiple Airlines

Deal found 19/8£880

Wed 20/806:50BHD - SFO

1 stop15h 00mBritish Airways

Fri 5/915:59SFO - BHD

2 stops18h 16mBritish Airways

Deal found 17/8£881

Thu 21/812:20BFS - SFO

2 stops40h 30mMultiple Airlines

Wed 27/821:20SFO - BFS

1 stop27h 00mMultiple Airlines

Deal found 18/8£946

Fri 22/809:50BFS - LAX

1 stop17h 15mMultiple Airlines

Fri 29/816:30LAX - BFS

1 stop32h 55mMultiple Airlines

Deal found 17/8£808

Fri 22/807:00BHD - LAX

1 stop15h 10mMultiple Airlines

Fri 29/816:30LAX - BHD

1 stop19h 55mMultiple Airlines

Deal found 17/8£911

Thu 28/806:35BHD - SFO

1 stop15h 15mBritish Airways

Fri 5/915:59SFO - BHD

2 stops20h 46mBritish Airways

Deal found 17/8£848

Thu 28/806:45BHD - SFO

2 stops17h 10mAer Lingus

Fri 5/923:25SFO - BHD

2 stops33h 50mAer Lingus

Deal found 17/8£852

Thu 28/817:25BHD - SFO

1 stop26h 20mKLM

Fri 5/913:45SFO - BHD

1 stop23h 30mKLM

Deal found 17/8£883

Tue 9/906:15BFS - LAS

1 stop15h 05mMultiple Airlines

Tue 23/915:10LAS - BFS

1 stop21h 25mMultiple Airlines

Deal found 19/8£859

Mon 15/922:45BFS - SFO

3 stops47h 50mMultiple Airlines

Mon 22/916:20SFO - BFS

2 stops22h 40mMultiple Airlines

Deal found 18/8£582

Mon 15/912:15BHD - SFO

2 stops19h 01mAmerican Airlines

Mon 22/919:20SFO - BHD

1 stop16h 15mAmerican Airlines

Deal found 18/8£588

Mon 15/906:40BHD - SFO

1 stop15h 10mBritish Airways

Mon 22/916:30SFO - BHD

1 stop15h 10mBritish Airways

Deal found 18/8£596

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 19 August 2025.

Mon 15/1206:55BFS - LAS

3 stops34h 50mMultiple Airlines

Deal found 19/8£284

Mon 15/906:10BFS - SFO

3 stops48h 20mMultiple Airlines

Deal found 18/8£287

Tue 16/921:25BFS - SFO

3 stops49h 05mMultiple Airlines

Deal found 19/8£303

Tue 16/918:00BHD - SFO

3 stops28h 35mMultiple Airlines

Deal found 19/8£371

Sat 10/115:00BHD - LAX

3 stops58h 00mMultiple Airlines

Deal found 19/8£704

Sat 10/115:00BHD - SFO

3 stops55h 35mMultiple Airlines

Deal found 16/8£705

Tue 16/909:35BHD - SFO

1 stop15h 50mBritish Airways

Deal found 19/8£731

Sat 10/111:35BHD - ONT

2 stops18h 27mBritish Airways

Deal found 19/8£1,102

Mon 6/1009:50BHD - SFO

1 stop15h 35mBritish Airways

Deal found 17/8£1,165

Thu 9/1006:35BHD - SFO

1 stop15h 15mBritish Airways

Deal found 17/8£1,207

Fri 10/1009:30BHD - SFO

1 stop15h 55mBritish Airways

Deal found 17/8£1,256

Sun 5/1006:50BHD - SFO

1 stop18h 25mBritish Airways

Deal found 17/8£2,101

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

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Wed 1/10

06:10-14:10

1 stop16h 00m

Los Angeles

Wed 8/10

16:30-07:50

1 stop31h 20m

£448

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 1/10

17:20-14:30

2 stops29h 10m

San Francisco

Wed 8/10

10:15-18:35

3 stops24h 20m

£520

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Thu 2/10

16:00-16:20

2 stops32h 20m

Los Angeles

Thu 9/10

19:30-21:40

2 stops18h 10m

£539

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Fri 7/11

17:20-11:45

1 stop26h 25m

Los Angeles

Sun 16/11

13:40-16:50

1 stop19h 10m

£557

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Fri 7/11

06:30-22:30

2 stops24h 00m

Los Angeles

Sun 16/11

09:57-16:50

2 stops22h 53m

£566

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Mon 15/9

22:45-14:35

3 stops47h 50m

San Francisco

Mon 22/9

16:20-23:00

2 stops22h 40m

£582

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 15/9

12:15-23:16

2 stops19h 01m

San Francisco

Mon 22/9

19:20-19:35

1 stop16h 15m

£588

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 15/9

06:40-13:50

1 stop15h 10m

San Francisco

Mon 22/9

16:30-15:40

1 stop15h 10m

£596

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Wed 8/10

07:25-15:55

3 stops40h 30m

Las Vegas Harry Reid Intl

Sun 12/10

08:00-14:55

2 stops22h 55m

£598

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Wed 1/10

06:10-21:19

2 stops23h 09m

Las Vegas Harry Reid Intl

Wed 8/10

08:00-18:35

2 stops26h 35m

£601

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 33 results

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.

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

What is the cheapest month to book a flight from Northern Ireland to California?

Currently, January is the cheapest month in which you can book a flight from Northern Ireland to California (average of £575). Flying from Northern Ireland to California in July is currently the most expensive (average of £811). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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.

How much does it cost for a return flight from Northern Ireland to California?

Reviews of airlines servicing California

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

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,386 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

American Airlines

7.2

Good

10,000 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

British Airways

6.7

Okay

7,283 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 19h 01m. Fly via Virgin Atlantic, Delta, or American Airlines 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.
What is the cheapest month to book a flight from Northern Ireland to California?
Currently, January is the cheapest month in which you can book a flight from Northern Ireland to California (average of £575). Flying from Northern Ireland to California in July is currently the most expensive (average of £811). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Northern Ireland to California

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San Francisco Airport car hire

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Ontario Airport car hire

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Fresno Airterminal Airport car hire

Direct flights to United States

Top 3 airlines flying from Northern Ireland to California

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£365	Average£587	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£468	Average£519	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
KLM	Cheapest£505	Average£607	FlexibilityNo cancel fee	On-time75%	Search KLM 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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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Northern Ireland to California from £284

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 15/12. 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

Keep the following information in mind while searching for Northern Ireland to California flight deals. Data was last updated 19 August 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 19 August 2025.

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 19 August 2025.

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

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

What is the cheapest month to book a flight from Northern Ireland to California?

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

Find hourly flight availability from Northern Ireland to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

How much does it cost for a return flight from Northern Ireland to California?

Reviews of airlines servicing California

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

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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?

What is the cheapest month to book a flight 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.

Top 3 airlines flying from Northern Ireland to California

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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 19 August 2025.