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Cheap flights from California to Belfast from £151

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BHD
19 Mar — 26 Mar1
1 adult
1 adult, Economy, 0 bags

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 17 February 2026.

Sun 5/420:55
LAX
-
BHD
1 stop15h 40m
British Airways
Tue 21/409:40
BHD
-
LAX
1 stop16h 40m
British Airways
Deal found 13/2£461
Sat 21/213:55
SFO
-
BHD
1 stop18h 55m
Delta
Fri 6/306:30
BHD
-
SFO
1 stop13h 20m
Delta
Deal found 14/2£514
Wed 4/317:30
SFO
-
BHD
1 stop15h 05m
British Airways
Sun 8/317:35
BHD
-
SFO
1 stop33h 10m
British Airways
Deal found 15/2£520
Sun 5/409:45
LAX
-
BHD
2 stops15h 35m
KLM
Tue 21/417:30
BHD
-
LAX
1 stop29h 15m
KLM
Deal found 13/2£523
Thu 5/317:30
SFO
-
BHD
1 stop30h 55m
British Airways
Mon 9/314:40
BHD
-
SFO
1 stop32h 20m
British Airways
Deal found 15/2£526
Tue 18/816:26
LAX
-
BHD
2 stops18h 29m
British Airways
Sat 3/1009:35
BHD
-
LAX
1 stop16h 45m
British Airways
Deal found 14/2£543
Tue 12/520:55
LAX
-
BHD
1 stop14h 00m
British Airways
Tue 26/509:40
BHD
-
LAX
1 stop16h 40m
British Airways
Deal found 13/2£556
Tue 12/520:20
LAX
-
BHD
1 stop15h 20m
American Airlines
Tue 26/506:30
BHD
-
LAX
2 stops19h 50m
American Airlines
Deal found 15/2£564
Fri 4/911:59
LAX
-
BHD
2 stops19h 31m
British Airways
Fri 18/909:35
BHD
-
LAX
2 stops18h 02m
British Airways
Deal found 16/2£566
Fri 4/911:28
SNA
-
BHD
2 stops20h 02m
British Airways
Fri 18/909:35
BHD
-
SNA
2 stops18h 29m
British Airways
Deal found 16/2£576
Sat 5/912:28
SNA
-
BHD
2 stops18h 37m
British Airways
Sat 19/907:05
BHD
-
SNA
2 stops20h 59m
British Airways
Deal found 16/2£581
Fri 4/916:54
ONT
-
BHD
2 stops17h 16m
British Airways
Fri 18/909:35
BHD
-
ONT
2 stops22h 42m
British Airways
Deal found 16/2£598

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 17 February 2026.

Round-trip from

£461

One-way from

£151

Popular in

June

Cheapest in

October

Average price

£502
British Airways
  • British Airways
  • 5/4-21/4
  • 2 total stops
  • 32h 20m total
  • California to Belfast
Search Deals
British Airways
  • British Airways
  • 19/7
  • 2 total stops
  • 18h 48m total
  • California to Belfast
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 17 February 2026.
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

Sun 5/4

20:55-20:35

1 stop15h 40m

Belfast City

Tue 21/4

09:40-18:20

1 stop16h 40m

£461

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 4/3

17:30-16:35

1 stop15h 05m

Belfast City

Sun 8/3

20:25-19:45

1 stop30h 20m

£520

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Sun 5/4

09:45-09:20

2 stops15h 35m

Belfast City

Tue 21/4

17:30-14:45

1 stop29h 15m

£523

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 5/3

17:30-08:25

1 stop30h 55m

Belfast City

Mon 9/3

14:40-16:00

1 stop32h 20m

£526

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Tue 12/5

20:55-18:55

1 stop14h 00m

Belfast City

Tue 26/5

09:40-18:20

1 stop16h 40m

£556

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Tue 12/5

20:20-19:40

1 stop15h 20m

Belfast City

Tue 26/5

06:30-18:20

2 stops19h 50m

£564

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 4/3

18:00-07:30

1 stop29h 30m

Belfast City

Sun 8/3

12:10-19:30

1 stop14h 20m

£597

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 27/5

12:36-13:35

2 stops16h 59m

Belfast City

Thu 4/6

06:30-13:50

1 stop15h 20m

£618

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Thu 4/6

07:30-23:00

2 stops31h 30m

Belfast Intl

Wed 10/6

20:15-13:30

1 stop25h 15m

£643

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Tue 31/3

19:35-23:05

2 stops19h 30m

Belfast Intl

Tue 7/4

16:05-16:30

2 stops32h 25m

£649

Flights are sorted by cheapest return flights first.

Deals found on 15/2

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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, March is the cheapest month in which you can book a flight from California to Belfast (average of £427). Flying from California to Belfast in June is currently the most expensive (average of £680). 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

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 £523, British Airways can have you in Belfast from California in 15h 35m. 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 City or San Francisco - 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 £427). Flying from California to Belfast in June is currently the most expensive (average of £680). 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

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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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