How long is the flight from California to Belfast?

For as low as £434, British Airways can have you in Belfast from California in 16h 02m. The distance from California to Belfast is about 5128 mi.

In terms of precipitation, rainfall in Belfast 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 Belfast when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Belfast, 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 are the most popular routes from California to Belfast?

While some choose either Los Angeles - Belfast City or Ontario - Belfast City, Los Angeles - Belfast Intl is the most popular route from California to Belfast.

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

When flying from California to Belfast, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from California to Belfast?

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

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

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

£207+ Flights from California to Belfast

Cheap flight deals from California to Belfast

Round-trip from	£424
One-way from	£207
Popular in	June
Cheapest in	October
Average price	£517

American Airlines
18/1-3/2
2 total stops
47h 35m total
California to Belfast

Search Deals

4/5
2 total stops
26h 55m total
California to Belfast

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£100 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Find flight deals from California to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from California to Belfast
Explore the most affordable flight options available from California to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 January 2026.

Sun 18/117:30LAX - BHD

1 stop15h 20mAmerican Airlines

Tue 3/215:05BHD - LAX

1 stop32h 15mAmerican Airlines

Deal found 6/1£424

Wed 15/413:28LAX - BHD

2 stops16h 02mBritish Airways

Mon 20/419:30BHD - LAX

1 stop30h 55mBritish Airways

Deal found 6/1£434

Wed 25/215:30LAX - BHD

1 stop17h 05mBritish Airways

Sun 1/320:25BHD - LAX

1 stop25h 05mBritish Airways

Deal found 5/1£445

Mon 2/208:50LAX - BHD

2 stops17h 50mBritish Airways

Mon 9/217:45BHD - LAX

1 stop27h 45mBritish Airways

Deal found 4/1£460

Fri 27/220:40SFO - BHD

1 stop14h 35mBritish Airways

Tue 3/311:25BHD - SFO

1 stop15h 20mBritish Airways

Deal found 5/1£464

Fri 23/119:25LAX - BHD

1 stop13h 50mAmerican Airlines

Tue 3/206:35BHD - LAX

1 stop16h 45mAmerican Airlines

Deal found 6/1£469

Fri 20/217:02ONT - BHD

2 stops16h 13mBritish Airways

Fri 27/208:45BHD - ONT

2 stops21h 22mBritish Airways

Deal found 6/1£474

Wed 4/307:45SNA - BHD

2 stops18h 30mBritish Airways

Sun 8/306:30BHD - SNA

2 stops22h 09mBritish Airways

Deal found 6/1£474

Fri 27/214:07SJC - BHD

2 stops21h 08mBritish Airways

Tue 3/317:15BHD - SJC

2 stops37h 16mBritish Airways

Deal found 5/1£475

Wed 25/214:39ONT - BHD

2 stops20h 31mBritish Airways

Sun 1/309:10BHD - ONT

2 stops22h 49mBritish Airways

Deal found 5/1£475

Sun 18/112:41ONT - BHD

2 stops20h 09mKLM

Tue 3/217:20BHD - ONT

2 stops30h 55mKLM

Deal found 6/1£478

Wed 4/311:01SJC - BHD

2 stops24h 09mBritish Airways

Sun 8/317:35BHD - SJC

2 stops50h 54mBritish Airways

Deal found 5/1£479

Best flights from California to Belfast
Discover carefully curated flight deals from California to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 January 2026.

Wed 15/413:28LAX - BHD

2 stops16h 02mBritish Airways

Mon 20/419:30BHD - LAX

1 stop30h 55mBritish Airways

Deal found 6/1£434

Sun 18/112:41ONT - BHD

2 stops20h 09mKLM

Tue 3/217:20BHD - ONT

2 stops30h 55mKLM

Deal found 6/1£478

Fri 20/217:20SFO - BFS

2 stops20h 40mMultiple Airlines

Fri 27/214:30BFS - SFO

3 stops32h 15mMultiple Airlines

Deal found 6/1£551

Wed 4/321:00LAX - BHD

1 stop14h 10mBritish Airways

Sun 8/306:30BHD - LAX

1 stop17h 20mBritish Airways

Deal found 5/1£445

Wed 25/215:30LAX - BHD

1 stop17h 05mBritish Airways

Sun 1/320:25BHD - LAX

1 stop25h 05mBritish Airways

Deal found 5/1£445

Thu 19/214:37LAX - BHD

2 stops18h 03mBritish Airways

Thu 26/209:05BHD - LAX

1 stop14h 45mBritish Airways

Deal found 5/1£460

Mon 2/218:00LAX - BFS

1 stop19h 30mMultiple Airlines

Mon 9/206:40BFS - LAX

1 stop19h 50mMultiple Airlines

Deal found 4/1£563

Mon 2/208:50LAX - BHD

2 stops17h 50mBritish Airways

Mon 9/217:45BHD - LAX

1 stop27h 45mBritish Airways

Deal found 4/1£460

Fri 20/213:45LAX - BFS

2 stops22h 45mMultiple Airlines

Fri 27/208:05BFS - LAX

2 stops35h 40mMultiple Airlines

Deal found 6/1£568

Wed 4/317:30SFO - BHD

1 stop15h 05mBritish Airways

Sun 8/309:10BHD - SFO

1 stop13h 50mBritish Airways

Deal found 5/1£464

Fri 27/220:40SFO - BHD

1 stop14h 35mBritish Airways

Tue 3/311:25BHD - SFO

1 stop15h 20mBritish Airways

Deal found 5/1£464

Mon 15/616:30LAX - BFS

1 stop15h 00mMultiple Airlines

Fri 19/606:05BFS - LAX

1 stop16h 05mMultiple Airlines

Deal found 6/1£629

Wed 4/307:00ONT - BHD

2 stops25h 35mBritish Airways

Sun 8/306:30BHD - ONT

2 stops22h 37mBritish Airways

Deal found 6/1£474

Sun 18/116:35LAX - BFS

1 stop21h 20mMultiple Airlines

Tue 3/205:45BFS - LAX

2 stops24h 18mMultiple Airlines

Deal found 6/1£652

Wed 25/206:00ONT - BHD

2 stops26h 35mBritish Airways

Sun 1/310:40BHD - ONT

2 stops19h 27mBritish Airways

Deal found 6/1£474

Fri 19/616:30LAX - BFS

1 stop22h 50mMultiple Airlines

Wed 15/720:15BFS - LAX

1 stop25h 55mMultiple Airlines

Deal found 6/1£671

Fri 20/217:02ONT - BHD

2 stops16h 13mBritish Airways

Fri 27/208:45BHD - ONT

2 stops21h 22mBritish Airways

Deal found 6/1£474

Tue 9/612:00LAX - BFS

1 stop14h 15mMultiple Airlines

Mon 15/606:10BFS - LAX

1 stop16h 00mMultiple Airlines

Deal found 6/1£689

Wed 4/307:45SNA - BHD

2 stops18h 30mBritish Airways

Sun 8/306:30BHD - SNA

2 stops22h 09mBritish Airways

Deal found 6/1£474

Wed 21/116:30SFO - BFS

1 stop30h 55mMultiple Airlines

Sun 25/106:30BFS - SFO

1 stop21h 40mMultiple Airlines

Deal found 5/1£691

Fri 27/214:07SJC - BHD

2 stops21h 08mBritish Airways

Tue 3/317:15BHD - SJC

2 stops37h 16mBritish Airways

Deal found 5/1£475

Sat 20/616:30LAX - BFS

1 stop22h 10mMultiple Airlines

Wed 15/720:15BFS - LAX

1 stop25h 55mMultiple Airlines

Deal found 6/1£696

Wed 4/311:01SJC - BHD

2 stops24h 09mBritish Airways

Sun 8/317:35BHD - SJC

2 stops50h 54mBritish Airways

Deal found 5/1£479

Thu 5/317:30SFO - BHD

1 stop15h 10mBritish Airways

Mon 9/319:25BHD - SFO

1 stop27h 35mBritish Airways

Deal found 4/1£500

Thu 19/322:39LAX - BFS

2 stops51h 16mMultiple Airlines

Sun 29/318:00BFS - LAX

1 stop28h 20mMultiple Airlines

Deal found 5/1£750

Fri 23/116:45ONT - BHD

2 stops18h 30mBritish Airways

Tue 3/211:25BHD - ONT

2 stops19h 23mBritish Airways

Deal found 6/1£514

Mon 19/114:32SJC - BHD

2 stops20h 03mBritish Airways

Thu 22/111:05BHD - SJC

2 stops19h 44mBritish Airways

Deal found 6/1£710

Fri 19/612:50SFO - BFS

2 stops17h 25mMultiple Airlines

Wed 15/717:45BFS - SFO

1 stop32h 20mMultiple Airlines

Deal found 6/1£1,174

Mon 25/513:11SJC - BHD

2 stops18h 29mBritish Airways

Mon 8/618:30BHD - SJC

2 stops32h 49mBritish Airways

Deal found 6/1£775

Tue 26/513:11SJC - BHD

2 stops18h 09mBritish Airways

Tue 9/606:35BHD - SJC

2 stops20h 44mBritish Airways

Deal found 6/1£779

Last-minute flights from California to Belfast
Discover last-minute flight deals from California to Belfast. Data last updated 7 January 2026 and is based on user searches.

Thu 15/121:00SFO - BHD

1 stop15h 30mBritish Airways

Wed 21/115:40BHD - SFO

2 stops38h 54mBritish Airways

Deal found 6/1£482

Thu 15/113:55SFO - BHD

1 stop18h 55mMultiple Airlines

Wed 21/117:20BHD - SFO

1 stop26h 30mMultiple Airlines

Deal found 6/1£506

Sun 18/117:30LAX - BHD

1 stop15h 20mAmerican Airlines

Tue 3/215:05BHD - LAX

1 stop32h 15mAmerican Airlines

Deal found 6/1£424

Sun 18/111:55LAX - BHD

2 stops20h 55mKLM

Tue 3/217:20BHD - LAX

1 stop26h 25mKLM

Deal found 6/1£474

Sun 18/112:41ONT - BHD

2 stops20h 09mKLM

Tue 3/217:20BHD - ONT

2 stops30h 55mKLM

Deal found 6/1£478

Fri 23/119:25LAX - BHD

1 stop13h 50mAmerican Airlines

Tue 3/206:35BHD - LAX

1 stop16h 45mAmerican Airlines

Deal found 6/1£469

Mon 2/208:50LAX - BHD

2 stops17h 50mBritish Airways

Mon 9/217:45BHD - LAX

1 stop27h 45mBritish Airways

Deal found 4/1£460

Fri 20/217:02ONT - BHD

2 stops16h 13mBritish Airways

Fri 27/208:45BHD - ONT

2 stops21h 22mBritish Airways

Deal found 6/1£474

Wed 25/215:30LAX - BHD

1 stop17h 05mBritish Airways

Sun 1/320:25BHD - LAX

1 stop25h 05mBritish Airways

Deal found 5/1£445

Wed 25/214:39ONT - BHD

2 stops20h 31mBritish Airways

Sun 1/309:10BHD - ONT

2 stops22h 49mBritish Airways

Deal found 5/1£475

Fri 27/220:40SFO - BHD

1 stop14h 35mBritish Airways

Tue 3/311:25BHD - SFO

1 stop15h 20mBritish Airways

Deal found 5/1£464

Fri 27/214:07SJC - BHD

2 stops21h 08mBritish Airways

Tue 3/317:15BHD - SJC

2 stops37h 16mBritish Airways

Deal found 5/1£475

One-way flights from California to Belfast
Search for one-way flight options from California to Belfast. Find affordable one-way fares based on user searches. Data last updated 7 January 2026.

Mon 4/520:10LAX - BFS

2 stops26h 55mMultiple Airlines

Deal found 5/1£207

Wed 18/207:00LAX - BFS

2 stops40h 25mMultiple Airlines

Deal found 6/1£208

Wed 13/520:10LAX - BFS

2 stops18h 10mMultiple Airlines

Deal found 5/1£211

Tue 12/520:10LAX - BFS

2 stops35h 10mMultiple Airlines

Deal found 5/1£211

Wed 18/207:00LAX - BHD

2 stops28h 20mMultiple Airlines

Deal found 5/1£214

Sun 22/213:50LAX - BHD

3 stops59h 45mMultiple Airlines

Deal found 5/1£214

Sun 22/223:59LAX - BFS

3 stops50h 06mMultiple Airlines

Deal found 5/1£215

Wed 6/520:10LAX - BHD

2 stops36h 10mMultiple Airlines

Deal found 5/1£218

Tue 12/520:10LAX - BHD

2 stops35h 20mMultiple Airlines

Deal found 5/1£220

Tue 17/216:45LAX - BFS

3 stops46h 05mMultiple Airlines

Deal found 6/1£220

Fri 24/421:30LAX - BFS

2 stops51h 10mMultiple Airlines

Deal found 6/1£225

Tue 17/216:45LAX - BHD

3 stops42h 35mMultiple Airlines

Deal found 6/1£228

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 15/4

13:28-13:30

2 stops16h 02m

Belfast City

Mon 20/4

19:30-18:25

1 stop30h 55m

£434

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 4/3

21:00-19:10

1 stop14h 10m

Belfast City

Sun 8/3

06:30-15:50

1 stop17h 20m

£445

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 25/2

15:30-16:35

1 stop17h 05m

Belfast City

Sun 1/3

20:25-13:30

1 stop25h 05m

£445

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Thu 19/2

14:37-16:40

2 stops18h 03m

Belfast City

Thu 26/2

09:05-15:50

1 stop14h 45m

£460

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 2/2

08:50-10:40

2 stops17h 50m

Belfast City

Mon 9/2

17:45-13:30

1 stop27h 45m

£460

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 4/3

17:30-16:35

1 stop15h 05m

Belfast City

Sun 8/3

09:10-15:00

1 stop13h 50m

£464

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 27/2

20:40-19:15

1 stop14h 35m

Belfast City

Tue 3/3

11:25-18:45

1 stop15h 20m

£464

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 4/3

07:00-16:35

2 stops25h 35m

Belfast City

Sun 8/3

06:30-21:07

2 stops22h 37m

£474

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 25/2

06:00-16:35

2 stops26h 35m

Belfast City

Sun 1/3

10:40-22:07

2 stops19h 27m

£474

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Fri 20/2

17:02-17:15

2 stops16h 13m

Belfast City

Fri 27/2

08:45-22:07

2 stops21h 22m

£474

Flights are sorted by cheapest return flights first.

Deals found on 5/1

Showing 1-10 of 60 results

...

Best time to book a flight from California to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from California 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 California to Belfast

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

Currently, March is the cheapest month in which you can book a flight from California to Belfast (average of £432). Flying from California to Belfast in June is currently the most expensive (average of £685). 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.

Related info for your journey

How long is the flight from California to Belfast?
For as low as £434, British Airways can have you in Belfast from California in 16h 02m. The distance from California to Belfast is about 5128 mi.
What are the most popular routes from California to Belfast?
While some choose either Los Angeles - Belfast City or Ontario - Belfast City, Los Angeles - Belfast Intl is the most popular route from California to Belfast.
Can I find deals for flights from California to Belfast that include hotel bookings?
Yes. In addition to deals on California to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from California to Belfast?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Belfast.
Can I find deals for business class flights from California to Belfast?
Yes. Cheapflights offers flight deals from California to Belfast 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 California to Belfast?
Currently, March is the cheapest month in which you can book a flight from California to Belfast (average of £432). Flying from California to Belfast in June is currently the most expensive (average of £685). 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

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How does Cheapflights help users find flights from California to Belfast?

Deals for California to Belfast flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from California to Belfast.

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

Certainly. Search results for flights to Belfast from California shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from California to Belfast 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 Belfast from £207

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from California to Belfast

Keep the following information in mind while searching for California to Belfast flight deals. Data was last updated 7 January 2026.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from California to Belfast

Cheapest flights from California to BelfastExplore the most affordable flight options available from California to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 January 2026.

Explore the most affordable flight options available from California to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 January 2026.

Cheapflights Fare Finder

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

Best time to book a flight from California to Belfast

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

Cheapflights Insights

Everything you need to know about your flight from California to Belfast

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

Related info for your journey

Find useful and relevant information for your journey from California to Belfast. 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 California to Belfast?

What are the most popular routes from California to Belfast?

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

How can I find direct flights from California to Belfast?

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

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

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 Belfast

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

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 California to Belfast?

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

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

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

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Cheapest flights from California to Belfast
Explore the most affordable flight options available from California to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 January 2026.