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Cheap flights from Belfast to California from £288

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LAX
20 Aug — 27 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to California

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to California
Explore the most affordable flight options available from Belfast to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 July 2026.

Thu 29/1006:35
BHD
-
LAX
1 stop14h 50m
British Airways
Thu 5/1120:50
LAX
-
BHD
1 stop14h 00m
British Airways
Deal found 18/7£537
Thu 29/1011:05
BHD
-
ONT
2 stops19h 47m
British Airways
Thu 5/1114:59
ONT
-
BHD
2 stops17h 41m
British Airways
Deal found 17/7£629
Fri 4/906:30
BHD
-
SFO
1 stop15h 20m
British Airways
Sat 19/913:29
SFO
-
BHD
2 stops17h 36m
British Airways
Deal found 21/7£650
Thu 3/1215:05
BHD
-
LAX
2 stops33h 35m
British Airways
Mon 7/1218:00
LAX
-
BHD
1 stop14h 05m
British Airways
Deal found 19/7£652
Wed 2/1206:35
BHD
-
LAX
1 stop16h 45m
British Airways
Sun 6/1218:25
LAX
-
BHD
1 stop14h 25m
British Airways
Deal found 20/7£653
Tue 1/922:30
BFS
-
SFO
3 stops48h 00m
Multiple Airlines
Tue 8/906:00
SFO
-
BFS
3 stops26h 20m
Multiple Airlines
Deal found 18/7£653
Thu 3/1207:40
BHD
-
ONT
2 stops24h 15m
British Airways
Mon 7/1214:56
ONT
-
BHD
2 stops17h 09m
British Airways
Deal found 20/7£657
Wed 30/906:30
BHD
-
SNA
2 stops21h 42m
British Airways
Sun 4/1009:25
SNA
-
BHD
2 stops21h 10m
British Airways
Deal found 20/7£657
Thu 19/1107:40
BHD
-
SFO
1 stop15h 15m
British Airways
Mon 23/1113:10
SFO
-
BHD
2 stops18h 55m
British Airways
Deal found 20/7£676
Tue 18/822:45
BFS
-
SFO
3 stops31h 10m
Multiple Airlines
Mon 24/806:00
SFO
-
BFS
3 stops31h 35m
Multiple Airlines
Deal found 20/7£679
Mon 14/909:40
BHD
-
LAS
2 stops19h 07m
British Airways
Mon 21/916:46
LAS
-
BHD
2 stops17h 59m
British Airways
Deal found 20/7£693
Mon 14/917:30
BHD
-
LAS
1 stop33h 05m
KLM
Mon 21/920:25
LAS
-
BHD
1 stop28h 55m
KLM
Deal found 20/7£701

Find flight deals from Belfast to California

Keep the following information in mind while searching for Belfast to California flight deals. Data was last updated 21 July 2026.

Round-trip from

£537

One-way from

£288

Popular in

June

Cheapest in

October

Average price

£584
British Airways
  • British Airways
  • 29/10-5/11
  • 2 total stops
  • 28h 50m total
  • Belfast to California
Search Deals
23/9
  • 23/9
  • 3 total stops
  • 39h 50m total
  • Belfast to California
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£30 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast 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 21 July 2026.
Use the filters below to find and compare flights from Belfast to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Thu 29/10

11:05-22:59

2 stops18h 54m

Los Angeles Los Angeles

Thu 5/11

15:30-14:05

1 stop14h 35m

£603

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 29/10

11:05-23:52

2 stops19h 47m

Ontario

Thu 5/11

14:59-16:40

2 stops17h 41m

£629

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Thu 3/12

15:05-16:40

2 stops33h 35m

Los Angeles Los Angeles

Mon 7/12

18:00-16:05

1 stop14h 05m

£652

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Wed 2/12

12:25-18:35

1 stop14h 10m

Los Angeles Los Angeles

Sun 6/12

12:15-13:55

2 stops17h 40m

£653

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 3/12

07:40-23:55

2 stops24h 15m

Ontario

Mon 7/12

14:56-16:05

2 stops17h 09m

£657

BelfastSanta Ana

BHD - SNA

BHDSNA

Belfast City

Wed 30/9

19:40-15:45

2 stops28h 05m

Santa Ana J. Wayne/Orange Cnty

Sun 4/10

08:45-10:30

2 stops17h 45m

£657

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Fri 15/1

11:30-10:08

2 stops30h 38m

Ontario

Tue 19/1

12:57-18:40

2 stops21h 43m

£664

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 19/11

17:45-14:55

1 stop29h 10m

San Francisco

Mon 23/11

17:25-16:05

1 stop14h 40m

£676

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 3/12

06:35-14:55

1 stop16h 20m

San Francisco

Mon 7/12

10:15-14:15

2 stops20h 00m

£676

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 18/8

22:45-21:55

3 stops31h 10m

San Francisco

Mon 24/8

06:00-21:35

3 stops31h 35m

£679

Flights are sorted by cheapest return flights first.

Deals found on 16/7

Showing 1-10 of 49 resultsSorted by cheapest first
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5

Best time to book a flight from Belfast to California

Have a flexible travel schedule? Discover the best time to fly to California from Belfast 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 to California

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

Currently, October is the cheapest month in which you can book a flight from Belfast to California (average of £483). Flying from Belfast to California in March is currently the most expensive (average of £1,272). 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.

How much does it cost for a return flight from Belfast 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 21 July 2026.
Check out reviews from past customers who have flown with British Airways from Belfast to California to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,124 reviews
Check prices

Overall

6.7

Food

6.4

Entertainment

6.5

Crew

7.7

Boarding

6.9

Comfort

6.8

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.7
Okay
8,124 reviews
British Airways
6.7
Okay
8,124 reviews
Check prices

Overall

6.7

Food

6.4

Entertainment

6.5

Crew

7.7

Boarding

6.9

Comfort

6.8

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

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

    British Airways and Delta can get you from Belfast to California in just under 16h 45m. Your travel time can differ by up to 2h 09m. The distance from Belfast to California is about 4902 mi. This flight may include one or multiple stops.

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

    Most travelers choose Belfast Intl - Los Angeles Los Angeles, Belfast Intl - Las Vegas Harry Reid Intl or Belfast City - Las Vegas Harry Reid Intl when deciding on the best route from Belfast to California.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast 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.

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

    Currently, October is the cheapest month in which you can book a flight from Belfast to California (average of £483). Flying from Belfast to California in March is currently the most expensive (average of £1,272). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast to California

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Belfast to California

Discover the top airline that operate flights from Belfast 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 21 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£457Average£598FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Belfast to California?

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Why should you use Cheapflights to find cheap flight tickets from Belfast to California?

Cheapflights helps you find that perfect flight to California from Belfast by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Belfast to California with no change fees.

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

Of course! You can now track prices for flights from Belfast to California 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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