How long is the flight from California to Northern Ireland?

Departing from California to Northern Ireland will take you 17h 50m. California and Northern Ireland are separated by a distance of 5128 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Northern Ireland, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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

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

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

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

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

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

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

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

£231+ Cheap Flights from California to Northern Ireland

Cheap flight deals from California to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from California to Northern Ireland
Explore the most affordable flight options available from California to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Mon 19/1013:50 -

1 stop19h 05m

Mon 2/1109:40 -

1 stop34h 05m

Deal found 16/9£550

Sun 15/1113:50 -

1 stop35h 20m

Tue 8/1209:40 -

1 stop34h 05m

Deal found 16/9£584

Tue 13/1013:45 -

1 stop35h 35m

Tue 27/1009:40 -

1 stop34h 05m

Deal found 14/9£585

Mon 28/909:30 -

2 stops23h 25m

Tue 6/1017:30 -

1 stop26h 15m

Deal found 16/9£588

Tue 17/1107:00 -

2 stops18h 10m

Wed 25/1109:45 -

1 stop34h 00m

Deal found 14/9£589

Mon 28/913:45 -

1 stop19h 10m

Mon 5/1017:30 -

2 stops30h 24m

Deal found 16/9£590

Mon 19/1015:05 -

2 stops17h 50m

Mon 2/1117:15 -

1 stop26h 30m

Deal found 16/9£593

Mon 28/909:30 -

2 stops23h 25m

Wed 7/1009:50 -

2 stops22h 06m

Deal found 16/9£595

Wed 28/1008:00 -

2 stops18h 10m

Mon 2/1117:15 -

1 stop26h 30m

Deal found 14/9£598

Mon 23/1113:50 -

1 stop35h 20m

Mon 30/1109:40 -

1 stop34h 05m

Deal found 14/9£604

Wed 28/1009:22 -

2 stops16h 48m

Mon 2/1117:15 -

2 stops30h 49m

Deal found 16/9£605

Mon 12/1009:45 -

2 stops23h 10m

Mon 19/1017:30 -

2 stops31h 42m

Deal found 14/9£605

Best flights from California to Northern Ireland
Discover carefully curated flight deals from California to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Sun 15/1113:50 -

1 stop35h 20m

Wed 9/1209:40 -

1 stop34h 05m

Deal found 16/9£584

Mon 19/1015:05 -

2 stops17h 50m

Mon 2/1117:15 -

1 stop26h 30m

Deal found 16/9£593

Mon 12/1009:45 -

2 stops23h 10m

Mon 19/1017:30 -

2 stops31h 42m

Deal found 14/9£605

Sun 24/106:15 -

2 stops18h 55m

Sun 31/117:20 -

1 stop26h 25m

Deal found 15/9£631

Wed 14/1019:30 -

1 stop17h 05m

Mon 26/1019:40 -

1 stop27h 15m

Deal found 16/9£636

Sat 3/1018:05 -

1 stop16h 10m

Sat 10/1007:05 -

1 stop21h 05m

Deal found 13/9£736

Wed 28/1008:00 -

2 stops18h 10m

Mon 2/1117:15 -

1 stop26h 30m

Deal found 15/9£598

Wed 28/1008:10 -

2 stops18h 00m

Mon 2/1117:15 -

2 stops30h 49m

Deal found 12/9£605

Mon 19/1020:50 -

1 stop35h 05m

Mon 2/1117:30 -

2 stops31h 05m

Deal found 16/9£616

Wed 14/1012:02 -

2 stops17h 33m

Mon 26/1019:40 -

2 stops33h 28m

Deal found 14/9£642

Mon 18/105:55 -

2 stops26h 55m

Mon 25/109:40 -

2 stops38h 52m

Deal found 15/9£602

Mon 28/913:45 -

1 stop19h 10m

Mon 5/1017:30 -

1 stop26h 15m

Deal found 16/9£675

Tue 27/1010:20 -

2 stops28h 10m

Thu 29/1008:50 -

2 stops30h 30m

Deal found 13/9£629

Mon 18/105:55 -

2 stops26h 55m

Tue 26/109:40 -

2 stops46h 16m

Deal found 15/9£602

Mon 1/218:00 -

1 stop16h 35m

Fri 5/206:45 -

1 stop19h 45m

Deal found 12/9£666

Wed 14/1007:00 -

2 stops18h 20m

Mon 26/1017:15 -

1 stop26h 30m

Deal found 15/9£680

Sun 17/107:15 -

2 stops25h 35m

Wed 27/117:20 -

2 stops31h 37m

Deal found 15/9£602

Sun 8/1108:25 -

3 stops28h 20m

Sat 14/1123:00 -

3 stops47h 25m

Deal found 15/9£668

Wed 28/1019:00 -

1 stop17h 05m

Mon 2/1114:50 -

1 stop30h 35m

Deal found 16/9£669

Thu 15/1007:00 -

2 stops18h 20m

Mon 26/1017:15 -

1 stop26h 30m

Deal found 15/9£717

Wed 20/107:15 -

2 stops25h 35m

Wed 27/117:20 -

2 stops31h 37m

Deal found 15/9£602

Thu 15/1019:30 -

1 stop15h 15m

Mon 26/1019:40 -

1 stop27h 15m

Deal found 16/9£673

Tue 27/1006:30 -

3 stops29h 20m

Tue 3/1107:05 -

3 stops23h 52m

Deal found 12/9£709

Sun 17/107:15 -

2 stops25h 35m

Mon 25/117:20 -

2 stops31h 37m

Deal found 15/9£602

Sat 17/1016:35 -

1 stop17h 40m

Mon 26/1019:40 -

1 stop27h 15m

Deal found 16/9£673

Wed 18/1117:20 -

2 stops16h 45m

Wed 25/1106:55 -

1 stop21h 15m

Deal found 14/9£716

Mon 5/1019:26 -

2 stops15h 19m

Wed 14/1006:30 -

2 stops19h 14m

Deal found 15/9£680

Sun 17/105:45 -

2 stops27h 05m

Sat 23/117:20 -

2 stops30h 56m

Deal found 15/9£640

Tue 17/1115:05 -

2 stops21h 25m

Wed 25/1106:55 -

1 stop21h 15m

Deal found 14/9£726

Fri 15/112:45 -

2 stops36h 25m

Wed 27/117:20 -

2 stops35h 38m

Deal found 15/9£640

Find flight deals from California to Northern Ireland

Round-trip from	£550
One-way from	£231

Virgin Atlantic
19/10-2/11
2 total stops
53h 10m total
California to Northern Ireland

Search Deals

British Airways
10/1-31/12
1 total stop
14h 00m total
California to Northern Ireland

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Los AngelesBelfast

LAX Los Angeles Los Angeles - BHD Belfast City

LAXBHD

Los Angeles Los Angeles

Sun 10/1

20:50-18:50

1 stop14h 00m

Belfast City

Wed 31/12

00:00-15:00

Nonstop0h 00m

£231

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Wed 18/11

12:13-18:55

3 stops46h 42m

Belfast Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

£243

San FranciscoBelfast

SFO San Francisco - BHD Belfast City

SFOBHD

San Francisco

Tue 17/11

12:13-19:00

3 stops46h 47m

Belfast City

Wed 31/12

00:00-15:00

Nonstop0h 00m

£274

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Mon 16/11

16:40-20:55

3 stops44h 15m

Belfast Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

£278

Los AngelesBelfast

LAX Los Angeles Los Angeles - BFS Belfast Intl

LAXBFS

Los Angeles Los Angeles

Sun 4/10

10:20-16:15

3 stops45h 55m

Belfast Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

£285

Los AngelesBelfast

LAX Los Angeles Los Angeles - BHD Belfast City

LAXBHD

Los Angeles Los Angeles

Sun 4/10

07:03-16:50

3 stops49h 47m

Belfast City

Wed 31/12

00:00-15:00

Nonstop0h 00m

£294

Los AngelesBelfast

LAX Los Angeles Los Angeles - BHD Belfast City

LAXBHD

Los Angeles Los Angeles

Fri 25/12

14:20-20:35

3 stops46h 15m

Belfast City

Wed 31/12

00:00-15:00

Nonstop0h 00m

£322

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Tue 17/11

15:05-20:30

2 stops21h 25m

Belfast Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

£323

Los AngelesBelfast

LAX Los Angeles Los Angeles - BHD Belfast City

LAXBHD

Los Angeles Los Angeles

Fri 25/12

18:25-17:25

1 stop15h 00m

Belfast City

Wed 31/12

00:00-15:00

Nonstop0h 00m

£326

Fastest return journey

Los AngelesBelfast

LAX Los Angeles Los Angeles - BHD Belfast City

LAXBHD

Los Angeles Los Angeles

Wed 28/10

16:30-13:15

1 stop13h 45m

Belfast City

Wed 31/12

00:00-15:00

Nonstop0h 00m

£341

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 51 resultsSorted by cheapest first

...

Best time to book a flight from California to Northern Ireland

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

LAX-BHD

SFO-BHD

ONT-BHD

LAX-BFS

SFO-BFS

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 California to Northern Ireland

USCA-GBNIR

LAX-BHD

SFO-BHD

ONT-BHD

LAX-BFS

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

Related info for your journey

How long is the flight from California to Northern Ireland?
Departing from California to Northern Ireland will take you 17h 50m. California and Northern Ireland are separated by a distance of 5128 mi. This flight may include one or multiple stops.
Can I find deals for flights from California to Northern Ireland that include hotel bookings?
Yes. In addition to deals on California to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from California to Northern Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Northern Ireland.
Can I find deals for business class flights from California to Northern Ireland?
Yes. Cheapflights offers flight deals from California to Northern Ireland 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 Kingdom

Flights by cabin class

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Popular flights

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Alternative routes for California to Northern Ireland

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

Cheapflights makes it easy to find California to Northern Ireland 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 California to Northern Ireland?

Millions of users choose and trust Cheapflights to book the best flight deals from California to Northern Ireland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from California to Northern Ireland flexibly with Cheapflights today.

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Of course! You can now track prices for flights from California to Northern Ireland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from California to Northern Ireland from £231

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from California to Northern Ireland

Cheapest flights from California to Northern IrelandExplore the most affordable flight options available from California to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Explore the most affordable flight options available from California to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from California to Northern IrelandDiscover carefully curated flight deals from California to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Discover carefully curated flight deals from California to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from California to Northern IrelandDiscover last-minute flight deals from California to Northern Ireland. Data last updated 17 September 2026 and is based on user searches.

Discover last-minute flight deals from California to Northern Ireland. Data last updated 17 September 2026 and is based on user searches.

One-way flights from California to Northern IrelandSearch for one-way flight options from California to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Search for one-way flight options from California to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Find flight deals from California to Northern Ireland

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

Best time to book a flight from California to Northern Ireland

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

Cheapflights Insights

Related info for your journey

How long is the flight from California to Northern Ireland?

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

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

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

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 California to Northern Ireland

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

Complete your trip

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

Direct flights to United Kingdom

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

Search flights from California to Northern Ireland by cabin class

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

California and Northern Ireland flights

Browse other California and Northern Ireland flight options. Last updated on 17 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from Northern Ireland

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

California to Northern Ireland flights

Consider these flights travelling from California to Northern Ireland.

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

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

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

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

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Cheapest flights from California to Northern Ireland
Explore the most affordable flight options available from California to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from California to Northern Ireland
Discover carefully curated flight deals from California to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from California to Northern Ireland
Discover last-minute flight deals from California to Northern Ireland. Data last updated 17 September 2026 and is based on user searches.

One-way flights from California to Northern Ireland
Search for one-way flight options from California to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.