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Cheap flights from California to Belfast from £229

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BHD
6 Mar — 13 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 4 February 2026.

Wed 4/321:00
LAX
-
BHD
1 stop26h 30m
British Airways
Sun 8/306:30
BHD
-
LAX
1 stop17h 20m
British Airways
Deal found 3/2£468
Wed 29/716:35
SFO
-
BHD
1 stop15h 05m
British Airways
Thu 27/820:35
BHD
-
SFO
1 stop25h 15m
British Airways
Deal found 3/2£476
Wed 29/712:41
SJC
-
BHD
2 stops23h 09m
British Airways
Thu 27/809:35
BHD
-
SJC
2 stops20h 50m
British Airways
Deal found 3/2£481
Wed 4/320:40
SFO
-
BHD
1 stop14h 30m
British Airways
Sun 8/306:30
BHD
-
SFO
1 stop16h 30m
British Airways
Deal found 2/2£503
Wed 25/217:30
SFO
-
BHD
1 stop15h 05m
British Airways
Sun 1/306:30
BHD
-
SFO
1 stop16h 30m
British Airways
Deal found 2/2£520
Tue 18/820:55
LAX
-
BHD
1 stop14h 45m
British Airways
Sat 3/1007:05
BHD
-
LAX
1 stop19h 20m
British Airways
Deal found 3/2£544
Fri 15/513:40
SFO
-
BHD
2 stops20h 30m
British Airways
Mon 25/515:20
BHD
-
SFO
1 stop30h 30m
British Airways
Deal found 3/2£573
Sat 5/917:05
LAX
-
BHD
1 stop17h 10m
British Airways
Sun 20/906:30
BHD
-
LAX
1 stop19h 55m
British Airways
Deal found 1/2£574
Wed 25/215:30
LAX
-
BHD
1 stop14h 45m
British Airways
Sun 1/315:10
BHD
-
LAX
1 stop32h 40m
British Airways
Deal found 2/2£590
Sat 5/916:30
LAX
-
BFS
1 stop22h 10m
Multiple Airlines
Sun 20/909:55
BFS
-
LAX
1 stop35h 00m
Multiple Airlines
Deal found 1/2£615
Wed 4/310:56
ONT
-
BHD
2 stops21h 39m
British Airways
Sun 8/306:30
BHD
-
ONT
2 stops24h 22m
British Airways
Deal found 3/2£617
Wed 4/314:48
SNA
-
BHD
2 stops17h 47m
British Airways
Sun 8/310:40
BHD
-
SNA
2 stops28h 53m
British Airways
Deal found 3/2£617

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 4 February 2026.

Round-trip from

£468

One-way from

£229

Popular in

June

Cheapest in

October

Average price

£501
British Airways
  • British Airways
  • 4/3-8/3
  • 2 total stops
  • 43h 50m total
  • California to Belfast
Search Deals
7/5
  • 7/5
  • 2 total stops
  • 29h 55m total
  • California to Belfast
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£98 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 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 4 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

Wed 4/3

21:00-07:30

1 stop26h 30m

Belfast City

Sun 8/3

06:30-15:50

1 stop17h 20m

£468

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 29/7

11:07-13:35

2 stops18h 28m

Belfast City

Thu 27/8

20:35-13:50

1 stop25h 15m

£479

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 29/7

12:41-19:50

2 stops23h 09m

Belfast City

Thu 27/8

09:35-22:25

2 stops20h 50m

£481

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

£503

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 25/2

17:30-16:35

1 stop15h 05m

Belfast City

Sun 1/3

10:40-15:00

1 stop36h 20m

£520

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 15/5

13:40-18:10

2 stops20h 30m

Belfast City

Mon 25/5

15:20-13:50

1 stop30h 30m

£573

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 25/2

18:00-16:35

1 stop14h 35m

Belfast City

Sun 1/3

10:40-18:30

1 stop15h 50m

£590

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 4/3

10:56-16:35

2 stops21h 39m

Belfast City

Sun 8/3

06:30-22:52

2 stops24h 22m

£617

Santa AnaBelfast

SNA - BHD

SNABHD

Santa Ana J. Wayne/Orange Cnty

Wed 4/3

14:48-16:35

2 stops17h 47m

Belfast City

Sun 8/3

10:40-08:33

2 stops28h 53m

£617

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 27/5

10:32-16:55

2 stops22h 23m

Belfast City

Thu 4/6

17:30-11:45

1 stop26h 15m

£638

Flights are sorted by cheapest return flights first.

Deals found on 3/2

Showing 1-10 of 39 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, 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 £677). 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 £468, British Airways can have you in Belfast from California in 26h 30m. 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 Intl or San Jose - Belfast Intl, San Francisco - 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 £677). 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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