Cheap flights from California to Belfast from £289

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BHD
3 Sep — 10 Sep1
1 adult

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 29 August 2025.

Round-trip from

£409

One-way from

£289

Popular in

June

Cheapest in

September

Average price

£573
27/9-2/10
  • 27/9-2/10
  • 2 total stops
  • 59h 00m total
  • California to Belfast
British Airways
  • British Airways
  • 13/9
  • 2 total stops
  • 29h 00m total
  • California to Belfast
Highest demand for flights based on searches. 21% potential increase in price (£136 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from California to Belfast

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 29 August 2025.

Sat 27/915:05LAX - BHD
1 stop33h 05mMultiple Airlines
Thu 2/1020:15BHD - LAX
1 stop25h 55mMultiple Airlines
Deal found 27/8£409
Wed 17/916:30LAX - BFS
1 stop31h 20mMultiple Airlines
Wed 15/1006:10BFS - LAX
1 stop16h 00mMultiple Airlines
Deal found 27/8£454
Tue 14/1015:50SFO - BHD
2 stops17h 40mBritish Airways
Wed 29/1006:35BHD - SFO
1 stop16h 25mBritish Airways
Deal found 28/8£470
Tue 14/1011:15SFO - BHD
2 stops17h 45mAmerican Airlines
Wed 29/1009:15BHD - SFO
2 stops19h 28mAmerican Airlines
Deal found 28/8£477
Wed 17/906:00LAX - BFS
3 stops28h 35mMultiple Airlines
Wed 22/1007:15BFS - LAX
3 stops40h 15mMultiple Airlines
Deal found 27/8£483
Fri 26/916:30LAX - BHD
1 stop19h 55mMultiple Airlines
Fri 3/1007:00BHD - LAX
1 stop15h 10mMultiple Airlines
Deal found 27/8£486
Wed 15/1017:05LAX - BHD
1 stop14h 30mBritish Airways
Thu 23/1006:35BHD - LAX
1 stop19h 00mBritish Airways
Deal found 28/8£487
Wed 3/1217:30SFO - BHD
1 stop15h 05mBritish Airways
Sun 7/1210:40BHD - SFO
1 stop16h 00mBritish Airways
Deal found 27/8£489
Wed 15/1011:40LAX - BHD
2 stops16h 15mAmerican Airlines
Thu 23/1012:40BHD - LAX
1 stop15h 35mAmerican Airlines
Deal found 28/8£490
Sat 27/915:05LAX - BFS
1 stop22h 25mMultiple Airlines
Thu 2/1021:00BFS - LAX
1 stop25h 10mMultiple Airlines
Deal found 27/8£500
Fri 26/916:30LAX - BFS
1 stop21h 50mMultiple Airlines
Fri 3/1006:05BFS - LAX
1 stop16h 05mMultiple Airlines
Deal found 27/8£513
Mon 13/1008:05LAX - BFS
3 stops30h 55mMultiple Airlines
Mon 20/1009:25BFS - LAX
3 stops38h 05mMultiple Airlines
Deal found 29/8£516

Cheapflights Fare Finder

 
Customise your flight search to find flights from California to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 August 2025.
Use the filters below to find and compare flights from California to Belfast that are best for you.

Fly from

California

Fly to

Belfast

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Sat 27/9

15:05-08:10

1 stop33h 05m

Belfast City

Thu 2/10

20:15-14:10

1 stop25h 55m

£409

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Wed 17/9

16:30-07:50

1 stop31h 20m

Belfast Intl

Wed 15/10

06:10-14:10

1 stop16h 00m

£454

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Wed 17/9

16:30-07:50

1 stop31h 20m

Belfast Intl

Wed 22/10

06:10-14:10

1 stop16h 00m

£454

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 14/10

15:50-17:30

2 stops17h 40m

Belfast City

Wed 29/10

06:35-16:00

1 stop16h 25m

£470

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 14/10

11:15-13:00

2 stops17h 45m

Belfast City

Wed 29/10

09:15-21:43

2 stops19h 28m

£477

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 26/9

16:30-20:25

1 stop19h 55m

Belfast City

Fri 3/10

07:00-14:10

1 stop15h 10m

£486

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 15/10

13:25-13:30

1 stop16h 05m

Belfast City

Thu 23/10

06:35-20:15

1 stop21h 40m

£487

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 15/10

17:05-15:35

1 stop14h 30m

Belfast City

Thu 23/10

06:35-17:35

1 stop19h 00m

£487

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

17:30-16:35

1 stop15h 05m

Belfast City

Sun 7/12

10:40-18:40

1 stop16h 00m

£489

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Sat 27/9

15:05-21:30

1 stop22h 25m

Belfast Intl

Thu 2/10

21:00-14:10

1 stop25h 10m

£500

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 36 results
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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, January is the cheapest month in which you can book a flight from California to Belfast (average of £67). Flying from California to Belfast in July is currently the most expensive (average of £90). 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?

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 29 August 2025.

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.

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?

    For as low as £470, British Airways can have you in Belfast from California in 17h 40m. The distance from California to Belfast is about 5038 mi. This flight may include one or multiple stops.

  • What are the most popular routes 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, January is the cheapest month in which you can book a flight from California to Belfast (average of £67). Flying from California to Belfast in July is currently the most expensive (average of £90). 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.

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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.

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