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Cheap flights from Belfast Intl Airport to California from £304

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 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LAX
10 Jul — 17 Jul1
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 10 June 2026.

Sat 4/706:20
BFS
-
SFO
2 stops37h 01m
Multiple Airlines
Sat 11/719:50
SFO
-
BFS
1 stop19h 35m
Multiple Airlines
Deal found 6/6£698
Mon 13/722:25
BFS
-
LAS
1 stop22h 55m
Multiple Airlines
Tue 21/715:45
LAS
-
BFS
1 stop15h 30m
Multiple Airlines
Deal found 7/6£731
Thu 23/715:55
BFS
-
LAX
2 stops27h 55m
Multiple Airlines
Mon 27/714:00
LAX
-
BFS
2 stops22h 55m
Multiple Airlines
Deal found 10/6£766
Wed 22/705:55
BFS
-
SFO
2 stops17h 32m
Multiple Airlines
Wed 29/711:10
SFO
-
BFS
2 stops24h 05m
Multiple Airlines
Deal found 8/6£769
Wed 5/807:35
BFS
-
SFO
3 stops46h 20m
Multiple Airlines
Sat 15/808:30
SFO
-
BFS
2 stops29h 00m
Multiple Airlines
Deal found 8/6£778
Wed 8/715:40
BFS
-
SFO
2 stops28h 05m
Multiple Airlines
Wed 15/715:05
SFO
-
BFS
2 stops23h 15m
Multiple Airlines
Deal found 10/6£789
Wed 8/722:45
BFS
-
LAS
2 stops31h 37m
Multiple Airlines
Sun 12/718:45
LAS
-
BFS
1 stop18h 45m
Multiple Airlines
Deal found 10/6£819
Thu 16/708:20
BFS
-
SFO
2 stops36h 00m
Multiple Airlines
Mon 20/723:15
SFO
-
BFS
1 stop16h 05m
Multiple Airlines
Deal found 7/6£828
Tue 21/722:45
BFS
-
SFO
3 stops31h 10m
Multiple Airlines
Wed 5/814:40
SFO
-
BFS
2 stops23h 40m
Multiple Airlines
Deal found 7/6£848
Tue 7/705:55
BFS
-
SFO
3 stops38h 25m
Multiple Airlines
Tue 14/708:30
SFO
-
BFS
2 stops27h 20m
Multiple Airlines
Deal found 9/6£856
Fri 24/707:20
BFS
-
LAS
2 stops23h 04m
Multiple Airlines
Fri 31/706:50
LAS
-
BFS
3 stops25h 40m
Multiple Airlines
Deal found 9/6£914
Fri 17/717:20
BFS
-
LAX
2 stops29h 20m
Multiple Airlines
Fri 24/716:40
LAX
-
BFS
3 stops22h 40m
Multiple Airlines
Deal found 7/6£987

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 10 June 2026.

Round-trip from

£698

One-way from

£304

Popular in

June

Cheapest in

October

Average price

£872
4/7-11/7
  • 4/7-11/7
  • 3 total stops
  • 56h 36m total
  • Belfast to California
Search Deals
30/9
  • 30/9
  • 3 total stops
  • 40h 40m total
  • Belfast to California
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£46 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 10 June 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

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Mon 13/7

22:25-13:20

1 stop22h 55m

Las Vegas Harry Reid Intl

Tue 21/7

15:45-15:15

1 stop15h 30m

£731

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 5/8

07:35-21:55

3 stops46h 20m

San Francisco

Sat 15/8

08:30-21:30

2 stops29h 00m

£778

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 22/7

07:35-21:55

3 stops46h 20m

San Francisco

Wed 29/7

13:45-19:15

2 stops21h 30m

£789

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Wed 8/7

22:45-22:22

2 stops31h 37m

Las Vegas Harry Reid Intl

Sun 12/7

18:45-21:30

1 stop18h 45m

£819

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 23/7

20:55-12:00

3 stops47h 05m

San Francisco

Mon 27/7

11:40-23:20

3 stops27h 40m

£859

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 7/7

05:55-12:20

3 stops38h 25m

San Francisco

Tue 14/7

06:00-19:50

3 stops29h 50m

£859

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 21/7

22:45-21:55

3 stops31h 10m

San Francisco

Wed 5/8

08:30-22:20

3 stops29h 50m

£863

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 8/7

06:15-10:20

3 stops36h 05m

San Francisco

Wed 15/7

15:05-22:20

2 stops23h 15m

£908

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Fri 24/7

07:20-22:24

2 stops23h 04m

Las Vegas Harry Reid Intl

Fri 31/7

06:50-16:30

3 stops25h 40m

£914

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Fri 17/7

07:20-22:05

3 stops22h 45m

Los Angeles Los Angeles

Fri 24/7

16:40-23:20

3 stops22h 40m

£1,037

Flights are sorted by cheapest return flights first.

Deals found on 5/6

Showing 1-10 of 24 resultsSorted by cheapest first
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2
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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

How much does it cost for a return flight from Belfast Intl Airport to California?

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 10 June 2026.
Read reviews from past customers who have flown with 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.
British Airways
6.7
Okay
8,035 reviews
Check prices

Comfort

6.8

Crew

7.7

Entertainment

6.4

Boarding

6.9

Food

6.4

Overall

6.7

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
8,035 reviews
British Airways
6.7
Okay
8,035 reviews
Check prices

Comfort

6.8

Crew

7.7

Entertainment

6.4

Boarding

6.9

Food

6.4

Overall

6.7

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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 - Ontario and Belfast Intl - San Francisco.

  • 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 airline flying from Belfast Intl to California

Discover the top airline 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 10 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£429Average£603FlexibilityNo cancel feeOn-time70%
Search British Airways 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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