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Cheap flights from Belfast to California from £338

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LAX
6 Jul — 13 Jul1
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 6 June 2026.

Thu 5/1109:05
BHD
-
LAX
1 stop17h 25m
British Airways
Sat 21/1118:00
LAX
-
BHD
1 stop14h 45m
British Airways
Deal found 3/6£516
Tue 15/909:40
BHD
-
LAX
2 stops18h 51m
British Airways
Thu 1/1021:00
LAX
-
BHD
1 stop15h 35m
British Airways
Deal found 3/6£542
Wed 2/1209:15
BHD
-
ONT
2 stops21h 04m
British Airways
Sun 6/1214:56
ONT
-
BHD
2 stops19h 44m
British Airways
Deal found 5/6£569
Sun 1/1106:30
BHD
-
LAS
1 stop20h 20m
British Airways
Sat 7/1115:58
LAS
-
BHD
2 stops16h 47m
British Airways
Deal found 4/6£594
Tue 15/920:25
BHD
-
SNA
2 stops27h 20m
British Airways
Thu 1/1012:14
SNA
-
BHD
2 stops19h 16m
British Airways
Deal found 3/6£610
Tue 14/713:45
BHD
-
LAX
2 stops19h 09m
British Airways
Tue 21/720:55
LAX
-
BHD
1 stop14h 00m
British Airways
Deal found 5/6£633
Wed 26/811:35
BHD
-
SFO
1 stop13h 55m
American Airlines
Fri 4/915:46
SFO
-
BHD
2 stops20h 49m
American Airlines
Deal found 4/6£633
Tue 25/809:40
BHD
-
SFO
2 stops22h 05m
American Airlines
Fri 4/915:46
SFO
-
BHD
2 stops20h 49m
American Airlines
Deal found 4/6£638
Tue 25/816:25
BHD
-
SFO
1 stop29h 25m
British Airways
Fri 4/911:00
SFO
-
BHD
2 stops20h 30m
British Airways
Deal found 4/6£667
Fri 28/806:30
BHD
-
SFO
2 stops21h 18m
American Airlines
Fri 4/916:35
SFO
-
BHD
1 stop17h 35m
American Airlines
Deal found 4/6£668
Thu 5/1111:05
BHD
-
ONT
2 stops18h 54m
British Airways
Sat 21/1116:47
ONT
-
BHD
2 stops15h 58m
British Airways
Deal found 3/6£671
Thu 2/709:50
BHD
-
SFO
2 stops23h 09m
Delta
Thu 9/708:55
SFO
-
BHD
2 stops24h 00m
Delta
Deal found 4/6£684

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 6 June 2026.

Round-trip from

£516

One-way from

£338
British Airways
  • British Airways
  • 5/11-21/11
  • 2 total stops
  • 32h 10m total
  • Belfast to California
Search Deals
30/8
  • 30/8
  • 3 total stops
  • 42h 45m total
  • Belfast to California
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 6 June 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 5/11

11:05-23:15

2 stops20h 10m

Los Angeles

Sat 21/11

18:00-16:45

1 stop14h 45m

£542

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Wed 2/12

09:15-22:19

2 stops21h 04m

Ontario

Sun 6/12

14:56-18:40

2 stops19h 44m

£569

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Sun 1/11

06:30-19:50

1 stop20h 20m

Las Vegas Harry Reid Intl

Sat 7/11

15:58-16:45

2 stops16h 47m

£594

BelfastSanta Ana

BHD - SNA

BHDSNA

Belfast City

Tue 15/9

20:25-15:45

2 stops27h 20m

Santa Ana J. Wayne/Orange Cnty

Thu 1/10

12:14-15:30

2 stops19h 16m

£610

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Tue 14/7

13:45-00:54

2 stops19h 09m

Los Angeles

Tue 21/7

20:55-18:55

1 stop14h 00m

£633

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 25/8

16:25-13:50

1 stop29h 25m

San Francisco

Fri 4/9

11:00-15:30

2 stops20h 30m

£667

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 5/11

11:05-21:59

2 stops18h 54m

Ontario

Sat 21/11

16:47-16:45

2 stops15h 58m

£671

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 2/7

17:30-16:26

2 stops30h 56m

San Francisco

Thu 9/7

13:45-16:55

1 stop19h 10m

£684

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 2/7

09:50-00:59

2 stops23h 09m

San Francisco

Thu 9/7

08:55-16:55

2 stops24h 00m

£684

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Wed 7/10

10:05-20:00

1 stop17h 55m

Las Vegas Harry Reid Intl

Sun 11/10

17:20-17:40

1 stop16h 20m

£688

Flights are sorted by cheapest return flights first.

Deals found on 2/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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, November is the cheapest month in which you can book a flight from Belfast to California (average of £393). Flying from Belfast to California in January is currently the most expensive (average of £532). 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.

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 6 June 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
8,028 reviews
Check prices

Boarding

6.9

Overall

6.7

Crew

7.7

Comfort

6.8

Food

6.4

Entertainment

6.4

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
8,028 reviews
British Airways
6.7
Okay
8,028 reviews
Check prices

Boarding

6.9

Overall

6.7

Crew

7.7

Comfort

6.8

Food

6.4

Entertainment

6.4

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 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, KLM, and Delta can get you from Belfast to California in just under 20h 10m. Your travel time can differ by up to 10h 46m. The distance from Belfast to California is about 5128 mi. This flight may include one or multiple stops.

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

    Most travelers choose Belfast Intl - Las Vegas Harry Reid Intl, Belfast City - Las Vegas Harry Reid Intl or Belfast Intl - Los Angeles 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, November is the cheapest month in which you can book a flight from Belfast to California (average of £393). Flying from Belfast to California in January is currently the most expensive (average of £532). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 6 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£428Average£602FlexibilityNo 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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