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Cheap flights from California to Belfast Intl Airport from £216

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from California to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from California to Belfast Intl
Explore the most affordable flight options available from California to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 January 2026.

Tue 24/219:10
LAX
-
BFS
2 stops17h 05m
Multiple Airlines
Tue 3/316:30
BFS
-
LAX
2 stops32h 05m
Multiple Airlines
Deal found 26/1£554
Fri 5/616:30
LAX
-
BFS
1 stop32h 55m
Multiple Airlines
Sat 13/606:20
BFS
-
LAX
1 stop15h 50m
Multiple Airlines
Deal found 27/1£577
Tue 3/319:55
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Tue 17/317:30
BFS
-
SFO
2 stops49h 40m
Multiple Airlines
Deal found 27/1£626
Tue 3/319:55
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Fri 13/321:05
BFS
-
SFO
2 stops46h 05m
Multiple Airlines
Deal found 27/1£649
Tue 3/319:55
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Wed 11/308:35
BFS
-
SFO
2 stops22h 29m
Multiple Airlines
Deal found 27/1£654
Mon 2/307:00
SFO
-
BFS
2 stops25h 15m
Multiple Airlines
Wed 11/310:10
BFS
-
SFO
1 stop18h 00m
Multiple Airlines
Deal found 27/1£663
Tue 3/319:55
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Mon 16/306:30
BFS
-
SFO
2 stops21h 05m
Multiple Airlines
Deal found 27/1£676
Fri 13/320:55
SFO
-
BFS
2 stops19h 55m
Multiple Airlines
Fri 20/307:50
BFS
-
SFO
3 stops38h 55m
Multiple Airlines
Deal found 27/1£692
Sun 1/306:29
SFO
-
BFS
2 stops22h 26m
Multiple Airlines
Wed 11/310:10
BFS
-
SFO
1 stop18h 00m
Multiple Airlines
Deal found 27/1£695
Thu 5/316:40
SFO
-
BFS
2 stops21h 40m
Multiple Airlines
Wed 11/310:10
BFS
-
SFO
1 stop18h 00m
Multiple Airlines
Deal found 27/1£717
Fri 6/319:55
SFO
-
BFS
2 stops19h 55m
Multiple Airlines
Wed 11/310:10
BFS
-
SFO
1 stop18h 00m
Multiple Airlines
Deal found 27/1£720
Tue 3/319:55
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Thu 12/306:30
BFS
-
SFO
2 stops21h 05m
Multiple Airlines
Deal found 27/1£735

Find flight deals from California to Belfast Intl

Keep the following information in mind while searching for California to Belfast Intl flight deals. Data was last updated 28 January 2026.

Round-trip from

£554

One-way from

£216

Popular in

June

Cheapest in

October

Average price

£510
24/2-3/3
  • 24/2-3/3
  • 4 total stops
  • 49h 10m total
  • California to Belfast
Search Deals
10/2
  • 10/2
  • 3 total stops
  • 32h 35m total
  • California to Belfast
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£97 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 January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from California to Belfast Intl 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 28 January 2026.
Use the filters below to find and compare flights from California to Belfast Intl Airport that are best for you.

Fly from

California

Fly to

Belfast Intl

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Tue 24/2

19:10-20:15

2 stops17h 05m

Belfast Intl

Tue 3/3

16:30-16:35

2 stops32h 05m

£554

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Fri 5/6

16:30-09:25

1 stop32h 55m

Belfast Intl

Sat 13/6

06:20-14:10

1 stop15h 50m

£577

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 3/3

19:55-21:40

1 stop17h 45m

Belfast Intl

Fri 13/3

21:05-12:10

2 stops46h 05m

£649

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 3/3

19:55-21:40

1 stop17h 45m

Belfast Intl

Wed 11/3

08:35-00:04

2 stops22h 29m

£654

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Mon 2/3

07:00-16:15

2 stops25h 15m

Belfast Intl

Wed 11/3

10:10-21:10

1 stop18h 00m

£663

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Fri 13/3

20:55-23:50

2 stops19h 55m

Belfast Intl

Fri 20/3

07:50-15:45

3 stops38h 55m

£692

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Fri 6/3

19:55-23:50

2 stops19h 55m

Belfast Intl

Wed 11/3

10:10-21:10

1 stop18h 00m

£720

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Tue 23/6

12:00-10:15

1 stop14h 15m

Belfast Intl

Sun 28/6

20:50-14:10

1 stop25h 20m

£780

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Thu 28/5

06:00-11:50

3 stops21h 50m

Belfast Intl

Sat 6/6

07:40-14:30

3 stops38h 50m

£801

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Fri 13/3

08:15-14:40

2 stops23h 25m

Belfast Intl

Fri 20/3

17:30-15:00

1 stop28h 30m

£961

Flights are sorted by cheapest return flights first.

Deals found on 26/1

Showing 1-10 of 15 results
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Best time to book a flight from California to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl 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 Intl Airport

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

Currently, April is the cheapest month in which you can book a flight from California to Belfast Intl Airport (average of £427). Flying from California to Belfast Intl Airport in June is currently the most expensive (average of £675). 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 Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most popular routes from California to Belfast Intl Airport?

    Most travelers choose San Francisco - Belfast Intl, Los Angeles - Belfast Intl or San Jose - Belfast Intl when deciding on the best route from California to Belfast Intl Airport.

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

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

  • How can I find direct flights from California to Belfast Intl?

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

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

    Yes. Cheapflights offers flight deals from California to Belfast Intl 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 Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from California to Belfast Intl Airport (average of £427). Flying from California to Belfast Intl Airport in June is currently the most expensive (average of £675). 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

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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Alternative routes for California to Belfast Intl

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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 Intl?

Deals for California to Belfast Intl 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 Intl?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast Intl from California.

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

Certainly. Search results for flights to Belfast Intl 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 Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from California today and book when prices fit your budget.

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