How long is the flight from California to Belfast?

For as low as £452, British Airways can have you in Belfast from California in 14h 15m. The distance from California to Belfast is about 5128 mi. This flight may include one or multiple stops.

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 Intl or San Francisco - Belfast Intl, Los Angeles - Belfast City 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.

£257+ Flights from California to Belfast

Cheap 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 11 December 2025.

Mon 29/1214:54LAX - BHD

2 stops19h 41mBritish Airways

Thu 8/115:05BHD - LAX

2 stops37h 50mBritish Airways

Deal found 9/12£668

Mon 29/1213:45LAX - BHD

1 stop23h 15mKLM

Thu 8/117:20BHD - LAX

1 stop26h 25mKLM

Deal found 9/12£766

Wed 24/1219:15LAX - BHD

1 stop31h 05mBritish Airways

Fri 9/106:45BHD - LAX

2 stops25h 46mBritish Airways

Deal found 8/12£939

Wed 24/1218:00LAX - BHD

1 stop32h 20mBritish Airways

Thu 8/106:35BHD - LAX

2 stops23h 18mBritish Airways

Deal found 8/12£1,057

Tue 23/1213:45LAX - BHD

1 stop19h 05mDelta

Thu 8/117:20BHD - LAX

1 stop26h 25mDelta

Deal found 8/12£1,266

Thu 18/1220:15LAX - BFS

2 stops27h 30mMultiple Airlines

Wed 24/1217:30BFS - LAX

1 stop28h 30mMultiple Airlines

Deal found 10/12£1,357

Tue 23/1213:45LAX - BHD

1 stop19h 05mDelta

Wed 7/117:20BHD - LAX

1 stop26h 25mDelta

Deal found 8/12£1,434

Wed 24/1221:00LAX - BHD

1 stop26h 30mBritish Airways

Wed 7/112:25BHD - LAX

1 stop16h 00mBritish Airways

Deal found 8/12£1,437

Fri 19/1207:00LAX - BFS

2 stops43h 55mMultiple Airlines

Wed 24/1217:30BFS - LAX

1 stop28h 30mMultiple Airlines

Deal found 10/12£1,482

Tue 23/1213:45LAX - BHD

1 stop19h 05mDelta

Fri 9/117:20BHD - LAX

1 stop26h 25mDelta

Deal found 8/12£1,497

Tue 23/1216:30LAX - BHD

2 stops18h 10mBritish Airways

Fri 9/106:45BHD - LAX

2 stops25h 46mBritish Airways

Deal found 8/12£1,650

Mon 22/1220:15LAX - BHD

2 stops30h 35mMultiple Airlines

Sat 3/106:35BHD - LAX

1 stop21h 50mMultiple Airlines

Deal found 9/12£1,743

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 11 December 2025.

Fri 23/121:00LAX - BHD

1 stop14h 15mBritish Airways

Tue 3/206:35BHD - LAX

1 stop14h 55mBritish Airways

Deal found 10/12£452

Sat 24/122:45SJC - BHD

2 stops34h 05mKLM

Sat 31/117:20BHD - SJC

2 stops36h 08mKLM

Deal found 9/12£533

Fri 23/108:30LAX - BFS

3 stops29h 30mMultiple Airlines

Fri 30/118:00BFS - LAX

3 stops36h 00mMultiple Airlines

Deal found 9/12£569

Tue 19/519:30SFO - BHD

1 stop14h 00mAmerican Airlines

Thu 18/606:35BHD - SFO

1 stop15h 15mAmerican Airlines

Deal found 9/12£706

Thu 12/221:00LAX - BHD

1 stop13h 50mBritish Airways

Mon 16/211:30BHD - LAX

1 stop15h 00mBritish Airways

Deal found 9/12£468

Wed 11/215:30LAX - BHD

1 stop17h 05mBritish Airways

Sun 15/217:35BHD - LAX

1 stop30h 15mBritish Airways

Deal found 8/12£468

Wed 11/217:30SFO - BHD

1 stop15h 05mBritish Airways

Sun 15/210:40BHD - SFO

1 stop16h 05mBritish Airways

Deal found 8/12£510

Sat 24/108:30LAX - BFS

3 stops31h 20mMultiple Airlines

Sat 31/108:10BFS - LAX

3 stops40h 55mMultiple Airlines

Deal found 10/12£624

Tue 19/514:46SFO - BHD

2 stops20h 39mBritish Airways

Thu 18/606:35BHD - SFO

1 stop15h 15mBritish Airways

Deal found 9/12£537

Sat 24/116:40SFO - BFS

2 stops21h 50mMultiple Airlines

Sat 31/123:10BFS - SFO

3 stops47h 25mMultiple Airlines

Deal found 9/12£657

Sat 24/111:51SJC - BHD

2 stops18h 24mMultiple Airlines

Sat 31/111:05BHD - SJC

3 stops31h 52mMultiple Airlines

Deal found 9/12£707

Fri 26/1213:55SFO - BHD

1 stop23h 05mDelta

Fri 2/106:30BHD - SFO

2 stops19h 20mDelta

Deal found 9/12£1,818

Wed 11/207:16ONT - BHD

2 stops25h 19mBritish Airways

Sun 15/206:30BHD - ONT

2 stops24h 19mBritish Airways

Deal found 9/12£629

Wed 4/206:00ONT - BHD

2 stops26h 35mBritish Airways

Sun 8/215:10BHD - ONT

2 stops37h 00mBritish Airways

Deal found 9/12£629

Tue 19/514:34SJC - BHD

2 stops16h 46mMultiple Airlines

Thu 18/609:35BHD - SJC

2 stops18h 50mMultiple Airlines

Deal found 9/12£820

Thu 29/111:43OAK - BHD

2 stops20h 57mBritish Airways

Mon 2/209:15BHD - OAK

2 stops39h 08mBritish Airways

Deal found 9/12£666

Wed 11/214:32SJC - BHD

2 stops18h 03mBritish Airways

Sun 15/209:10BHD - SJC

2 stops21h 16mBritish Airways

Deal found 9/12£666

Tue 19/519:45SFO - BFS

1 stop30h 00mMultiple Airlines

Thu 18/615:25BFS - SFO

2 stops30h 10mMultiple Airlines

Deal found 9/12£903

Thu 5/214:32SJC - BHD

2 stops18h 08mBritish Airways

Mon 9/219:25BHD - SJC

2 stops35h 10mBritish Airways

Deal found 9/12£666

Fri 26/1217:20SFO - BHD

2 stops19h 40mMultiple Airlines

Fri 2/111:30BHD - SFO

2 stops28h 08mMultiple Airlines

Deal found 9/12£1,821

Fri 10/415:05ONT - BHD

2 stops16h 25mBritish Airways

Fri 24/409:30BHD - ONT

2 stops20h 26mBritish Airways

Deal found 10/12£1,361

Fri 26/1217:20SFO - BFS

2 stops20h 40mMultiple Airlines

Fri 2/121:00BFS - SFO

2 stops23h 40mMultiple Airlines

Deal found 9/12£1,859

Sun 21/1216:44ONT - BHD

2 stops17h 56mBritish Airways

Tue 6/117:15BHD - ONT

2 stops34h 55mBritish Airways

Deal found 8/12£2,631

Last-minute flights from California to Belfast
Discover last-minute flight deals from California to Belfast. Data last updated 11 December 2025 and is based on user searches.

Tue 23/1213:45LAX - BHD

1 stop19h 05mDelta

Thu 8/117:20BHD - LAX

1 stop26h 25mDelta

Deal found 8/12£1,266

Wed 24/1219:15LAX - BHD

1 stop31h 05mBritish Airways

Fri 9/106:45BHD - LAX

2 stops25h 46mBritish Airways

Deal found 8/12£939

Wed 24/1218:00LAX - BHD

1 stop32h 20mBritish Airways

Thu 8/106:35BHD - LAX

2 stops23h 18mBritish Airways

Deal found 8/12£1,057

Mon 29/1214:54LAX - BHD

2 stops19h 41mBritish Airways

Thu 8/115:05BHD - LAX

2 stops37h 50mBritish Airways

Deal found 9/12£668

Mon 29/1213:45LAX - BHD

1 stop23h 15mKLM

Thu 8/117:20BHD - LAX

1 stop26h 25mKLM

Deal found 9/12£766

Fri 23/121:00LAX - BHD

1 stop14h 15mBritish Airways

Tue 3/206:35BHD - LAX

1 stop14h 55mBritish Airways

Deal found 10/12£452

Fri 23/108:30LAX - BFS

3 stops29h 30mMultiple Airlines

Fri 30/118:00BFS - LAX

3 stops36h 00mMultiple Airlines

Deal found 9/12£569

Sat 24/122:45SJC - BHD

2 stops34h 05mKLM

Sat 31/117:20BHD - SJC

2 stops36h 08mKLM

Deal found 9/12£533

Sat 24/108:30LAX - BFS

3 stops31h 20mMultiple Airlines

Sat 31/108:10BFS - LAX

3 stops40h 55mMultiple Airlines

Deal found 10/12£624

Sat 24/116:40SFO - BFS

2 stops21h 50mMultiple Airlines

Sat 31/123:10BFS - SFO

3 stops47h 25mMultiple Airlines

Deal found 9/12£657

Sat 24/111:51SJC - BHD

2 stops18h 24mMultiple Airlines

Sat 31/111:05BHD - SJC

3 stops31h 52mMultiple Airlines

Deal found 9/12£707

Thu 29/111:43OAK - BHD

2 stops23h 07mBritish Airways

Mon 2/214:40BHD - OAK

2 stops33h 43mBritish Airways

Deal found 10/12£666

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 11 December 2025.

Wed 4/217:20SFO - BHD

2 stops16h 00mAer Lingus

Deal found 8/12£257

Tue 30/1217:30SFO - BHD

1 stop15h 15mBritish Airways

Deal found 9/12£268

Wed 4/212:50SJC - BHD

2 stops19h 45mBritish Airways

Deal found 8/12£277

Wed 4/217:30SFO - BHD

1 stop15h 05mBritish Airways

Deal found 8/12£278

Tue 30/1212:56SJC - BHD

2 stops21h 44mBritish Airways

Deal found 9/12£283

Wed 4/219:52SJC - BHD

3 stops40h 38mMultiple Airlines

Deal found 8/12£287

Tue 30/1221:30SFO - BFS

3 stops53h 00mMultiple Airlines

Deal found 9/12£362

Tue 30/1209:49OAK - BHD

2 stops16h 41mBritish Airways

Deal found 9/12£371

Sat 16/511:30SJC - BFS

3 stops37h 20mMultiple Airlines

Deal found 10/12£382

Tue 30/1221:30SFO - BHD

3 stops39h 20mMultiple Airlines

Deal found 9/12£389

Mon 22/1220:15LAX - BHD

2 stops29h 00mAer Lingus

Deal found 9/12£670

Mon 22/1213:45LAX - BHD

1 stop23h 15mKLM

Deal found 10/12£1,101

Find flight deals from California to Belfast

Round-trip from	£452
One-way from	£257
Popular in	June
Cheapest in	October
Average price	£824

British Airways
23/1-3/2
2 total stops
32h 30m total
California to Belfast

Search Deals

Aer Lingus
4/2
2 total stops
16h 00m total
California to Belfast

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£105 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

21:00-19:15

1 stop14h 15m

Belfast City

Tue 3/2

06:35-13:30

1 stop14h 55m

£452

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Thu 12/2

21:00-18:50

1 stop13h 50m

Belfast City

Mon 16/2

11:30-18:30

1 stop15h 00m

£468

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 11/2

15:30-16:35

1 stop17h 05m

Belfast City

Sun 15/2

17:35-15:50

1 stop30h 15m

£468

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 11/2

17:30-16:35

1 stop15h 05m

Belfast City

Sun 15/2

10:40-18:45

1 stop16h 05m

£510

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Sat 24/1

22:45-16:50

2 stops34h 05m

Belfast City

Sat 31/1

17:20-21:28

2 stops36h 08m

£533

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 19/5

14:46-19:25

2 stops20h 39m

Belfast City

Thu 18/6

06:35-13:50

1 stop15h 15m

£537

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Fri 23/1

08:30-22:00

3 stops29h 30m

Belfast Intl

Fri 30/1

18:00-22:00

3 stops36h 00m

£569

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Sat 24/1

08:30-23:50

3 stops31h 20m

Belfast Intl

Sat 31/1

08:10-17:05

3 stops40h 55m

£624

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 11/2

07:16-16:35

2 stops25h 19m

Belfast City

Sun 15/2

06:30-22:49

2 stops24h 19m

£629

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 4/2

06:00-16:35

2 stops26h 35m

Belfast City

Sun 8/2

15:10-20:10

2 stops37h 00m

£629

Flights are sorted by cheapest return flights first.

Deals found on 8/12

Showing 1-10 of 35 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 £440). Flying from California to Belfast in June is currently the most expensive (average of £695). 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 CA to BFS?

One of the essential ways to save on airfare from California to Belfast is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at midday could potentially save you up to 25% on airfare.

Related info for your journey

How long is the flight from California to Belfast?
For as low as £452, British Airways can have you in Belfast from California in 14h 15m. The distance from California to Belfast is about 5128 mi. This flight may include one or multiple stops.
What are the most popular routes from California to Belfast?
While some choose either Los Angeles - Belfast Intl or San Francisco - Belfast Intl, Los Angeles - Belfast City 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 £440). Flying from California to Belfast in June is currently the most expensive (average of £695). 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 California to Belfast

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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 £257

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 11 December 2025.

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 11 December 2025.

Find flight deals from California to Belfast

Keep the following information in mind while searching for California to Belfast flight deals. Data was last updated 11 December 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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?

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

Find hourly flight availability from California to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 December 2025.

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 11 December 2025.