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Cheap flights from Belfast Intl Airport to California from £393

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LAX
11 May — 18 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to California

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to California
Explore the most affordable flight options available from Belfast Intl to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 April 2026.

Fri 24/406:05
BFS
-
SFO
2 stops24h 44m
Multiple Airlines
Tue 28/406:00
SFO
-
BFS
2 stops24h 35m
Multiple Airlines
Deal found 10/4£654
Tue 5/508:00
BFS
-
SFO
1 stop15h 45m
Multiple Airlines
Tue 12/523:15
SFO
-
BFS
1 stop15h 55m
Multiple Airlines
Deal found 7/4£675
Thu 21/520:05
BFS
-
LAX
2 stops46h 50m
Multiple Airlines
Thu 28/512:43
LAX
-
BFS
2 stops26h 07m
Multiple Airlines
Deal found 6/4£712
Sun 10/522:00
BFS
-
LAX
2 stops26h 50m
Multiple Airlines
Mon 18/519:10
LAX
-
BFS
2 stops17h 45m
Multiple Airlines
Deal found 7/4£727
Thu 7/520:05
BFS
-
SFO
2 stops23h 40m
Multiple Airlines
Thu 14/515:05
SFO
-
BFS
1 stop23h 45m
Multiple Airlines
Deal found 9/4£727
Thu 21/508:20
BFS
-
LAS
3 stops42h 15m
Multiple Airlines
Thu 28/512:35
LAS
-
BFS
2 stops22h 20m
Multiple Airlines
Deal found 6/4£737
Thu 21/512:45
BFS
-
SFO
2 stops33h 55m
Multiple Airlines
Thu 28/516:45
SFO
-
BFS
2 stops20h 55m
Multiple Airlines
Deal found 6/4£774
Wed 16/906:15
BFS
-
LAS
2 stops24h 31m
Multiple Airlines
Mon 21/917:50
LAS
-
BFS
1 stop17h 15m
Multiple Airlines
Deal found 8/4£780
Sat 15/808:30
BFS
-
LAS
2 stops23h 32m
Multiple Airlines
Mon 24/817:50
LAS
-
BFS
2 stops19h 05m
Multiple Airlines
Deal found 7/4£788
Sat 23/516:55
BFS
-
SFO
2 stops29h 45m
Multiple Airlines
Sat 30/516:45
SFO
-
BFS
2 stops20h 45m
Multiple Airlines
Deal found 8/4£809
Tue 26/520:10
BFS
-
LAX
2 stops29h 20m
Multiple Airlines
Tue 2/607:30
LAX
-
BFS
3 stops28h 10m
Multiple Airlines
Deal found 11/4£810
Wed 15/421:50
BFS
-
LAX
3 stops47h 35m
Multiple Airlines
Wed 22/420:10
LAX
-
BFS
2 stops18h 10m
Multiple Airlines
Deal found 10/4£811

Find flight deals from Belfast Intl to California

Keep the following information in mind while searching for Belfast Intl to California flight deals. Data was last updated 11 April 2026.

Round-trip from

£654

One-way from

£393

Popular in

December

Cheapest in

June

Average price

£752
24/4-28/4
  • 24/4-28/4
  • 4 total stops
  • 49h 19m total
  • Belfast to California
Search Deals
17/9
  • 17/9
  • 3 total stops
  • 49h 15m total
  • Belfast to California
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£97 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl to California 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 11 April 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Fri 24/4

06:05-21:20

1 stop23h 15m

San Francisco

Tue 28/4

17:55-23:20

1 stop21h 25m

£660
Fastest return journey

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 5/5

08:00-15:45

1 stop15h 45m

San Francisco

Tue 12/5

23:15-23:10

1 stop15h 55m

£675

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Thu 21/5

20:05-10:55

2 stops46h 50m

Los Angeles Los Angeles

Thu 28/5

12:43-22:50

2 stops26h 07m

£712

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Sun 10/5

22:00-16:50

2 stops26h 50m

Los Angeles Los Angeles

Mon 18/5

19:10-20:55

2 stops17h 45m

£727

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 7/5

20:05-11:45

2 stops23h 40m

San Francisco

Thu 14/5

15:05-22:50

1 stop23h 45m

£727

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 21/5

12:45-14:40

2 stops33h 55m

San Francisco

Thu 28/5

16:45-21:40

2 stops20h 55m

£774

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sat 23/5

07:20-12:00

3 stops36h 40m

San Francisco

Sat 30/5

06:00-22:40

3 stops32h 40m

£809

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Mon 25/5

06:40-10:04

3 stops35h 24m

Los Angeles Los Angeles

Mon 1/6

12:55-20:40

2 stops23h 45m

£872

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Tue 26/5

05:55-22:05

3 stops24h 10m

Los Angeles Los Angeles

Tue 2/6

07:30-16:20

3 stops24h 50m

£922

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Thu 21/5

08:20-21:40

3 stops45h 20m

Las Vegas Harry Reid Intl

Thu 28/5

12:45-18:55

2 stops22h 10m

£932

Flights are sorted by cheapest return flights first.

Deals found on 8/4

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Belfast Intl to California

Have a flexible travel schedule? Discover the best time to fly to California from Belfast Intl 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 Belfast Intl Airport to California
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated 11 April 2026.
Read reviews from past customers who have flown with American Airlines and British Airways from Belfast Intl Airport to California. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,569 reviews
Check prices

Food

6.4

Overall

7.1

Boarding

7.5

Entertainment

6.9

Crew

7.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
American Airlines
7.1
Good
11,569 reviews
American Airlines
7.1
Good
11,569 reviews
Check prices

Food

6.4

Overall

7.1

Boarding

7.5

Entertainment

6.9

Crew

7.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
British Airways
6.7
Okay
7,871 reviews
American Airlines
7.1
Good
11,569 reviews
Check prices

Food

6.4

Overall

7.1

Boarding

7.5

Entertainment

6.9

Crew

7.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to California. 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 Belfast Intl Airport to California?

    The most popular flight routes from Belfast Intl Airport to California are Belfast Intl - Los Angeles Los Angeles, Belfast Intl - San Francisco and Belfast Intl - Ontario.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast Intl to California by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Belfast Intl to California

Discover the top 2 airlines that operate flights from Belfast Intl to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£407Average£524FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£471Average£522FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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 Belfast Intl to California?

Deals for Belfast Intl to California 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 Belfast Intl to California?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast Intl to California for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights from Belfast Intl to California with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Belfast Intl to California become cheaper?

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

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