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Cheap flights from Belfast to California from £395

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 28/4. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LAX
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to California

Keep the following information in mind while searching for Belfast to California flight deals. Data was last updated 31 October 2025.

Round-trip from

£578

One-way from

£395

Popular in

February

Cheapest in

January

Average price

£490
American Airlines
  • American Airlines
  • 9/3-11/3
  • 4 total stops
  • 57h 23m total
  • Belfast to California
Search Deals
28/4
  • 28/4
  • 1 total stop
  • 25h 15m total
  • Belfast to California
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find 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 31 October 2025.

Tue 4/1117:30BFS - SFO
1 stop34h 40mMultiple Airlines
Mon 10/1119:55SFO - BFS
1 stop17h 45mMultiple Airlines
Deal found 29/10£633
Thu 6/1106:15BFS - SFO
2 stops45h 55mMultiple Airlines
Sun 9/1116:30SFO - BFS
1 stop17h 55mMultiple Airlines
Deal found 29/10£746
Tue 4/1117:30BFS - SFO
1 stop34h 40mMultiple Airlines
Sun 9/1116:40SFO - BFS
2 stops20h 50mMultiple Airlines
Deal found 29/10£747
Thu 6/1121:00BFS - SFO
2 stops31h 10mMultiple Airlines
Mon 10/1119:55SFO - BFS
1 stop17h 45mMultiple Airlines
Deal found 29/10£748
Tue 4/1117:55BHD - SFO
2 stops28h 10mAer Lingus
Mon 10/1117:20SFO - BHD
2 stops16h 00mAer Lingus
Deal found 29/10£748
Wed 5/1106:35BHD - SFO
1 stop20h 10mAmerican Airlines
Tue 11/1117:30SFO - BHD
1 stop15h 15mAmerican Airlines
Deal found 29/10£759
Thu 6/1111:05BHD - LAX
1 stop15h 25mMultiple Airlines
Mon 10/1115:30LAX - BHD
1 stop16h 35mMultiple Airlines
Deal found 29/10£765
Thu 6/1106:35BHD - LAX
1 stop17h 15mBritish Airways
Mon 10/1116:45LAX - BHD
2 stops15h 20mBritish Airways
Deal found 29/10£776
Thu 6/1118:50BHD - LAX
2 stops31h 40mAer Lingus
Mon 10/1120:15LAX - BHD
2 stops16h 35mAer Lingus
Deal found 29/10£778
Wed 5/1118:00BHD - SFO
2 stops53h 35mAer Lingus
Mon 10/1117:20SFO - BHD
2 stops16h 00mAer Lingus
Deal found 30/10£781
Thu 6/1109:05BHD - SFO
1 stop13h 55mAmerican Airlines
Mon 10/1114:46SFO - BHD
2 stops17h 19mAmerican Airlines
Deal found 29/10£789
Tue 4/1115:05BHD - SFO
1 stop31h 55mFinnair
Mon 10/1120:40SFO - BHD
1 stop15h 35mFinnair
Deal found 29/10£798

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 31 October 2025.
Use the filters below to find and compare flights from Belfast to California that are best for you.

Fly from

Belfast

Fly to

California

Route

Depart

Return

Price

BelfastSanta Ana

BHD - SNA

BHDSNA

Belfast City

Mon 9/3

06:35-19:21

2 stops19h 46m

Santa Ana J. Wayne/Orange Cnty

Wed 11/3

13:43-10:20

2 stops37h 37m

£578

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 5/3

09:05-15:00

1 stop13h 55m

San Francisco

Mon 9/3

10:24-14:15

2 stops20h 51m

£603

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 5/3

09:05-22:08

2 stops21h 03m

Ontario

Mon 9/3

10:57-14:15

2 stops20h 18m

£606

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 26/2

10:40-22:31

2 stops19h 51m

Ontario

Mon 2/3

10:59-14:15

2 stops19h 16m

£609

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Fri 6/3

11:30-18:50

1 stop15h 20m

Las Vegas Harry Reid Intl

Tue 10/3

21:55-20:15

1 stop15h 20m

£760

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Fri 6/3

06:45-20:00

2 stops21h 15m

Las Vegas Harry Reid Intl

Tue 10/3

21:55-18:40

1 stop13h 45m

£762

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Tue 3/3

08:45-22:24

2 stops21h 39m

Las Vegas Harry Reid Intl

Thu 5/3

12:28-10:30

2 stops38h 02m

£764

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 26/3

06:30-12:50

1 stop13h 20m

San Francisco

Mon 30/3

13:45-16:55

1 stop19h 10m

£827

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Thu 26/3

10:40-21:25

1 stop17h 45m

Los Angeles

Mon 30/3

11:52-12:55

2 stops17h 03m

£874

BelfastSanta Ana

BHD - SNA

BHDSNA

Belfast City

Thu 26/3

06:35-22:09

2 stops22h 34m

Santa Ana J. Wayne/Orange Cnty

Mon 30/3

12:48-15:40

2 stops18h 52m

£882

Flights are sorted by cheapest return flights first.

Deals found on 30/10

Showing 1-10 of 25 results
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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 £362). Flying from Belfast to California in December is currently the most expensive (average of £515). 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.

What is the cheapest time of day to fly from BFS to CA?

Find hourly flight availability from Belfast to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 October 2025.

When flying from Belfast to California, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 11% versus a flight in the afternoon.

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 31 October 2025.
Check out reviews from past customers who have flown with KLM, American Airlines, andBritish 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.
KLM
7.7
Good
1,406 reviews
Check prices

Overall

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,406 reviews
KLM
7.7
Good
1,406 reviews
Check prices

Overall

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
American Airlines
7.2
Good
11,032 reviews
KLM
7.7
Good
1,406 reviews
Check prices

Overall

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,487 reviews
KLM
7.7
Good
1,406 reviews
Check prices

Overall

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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?

    American Airlines and British Airways can get you from Belfast to California in just under 15h 20m. Your travel time can differ by up to 4h 26m. The distance from Belfast to California is about 4902 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Belfast to California one-way?

    One-way options have recently been found by users for as low as £414 on British Airways. Other airlines that offer cheap prices include Finnair from £462 and KLM from £8,433 one-way.

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

    Most travelers choose Belfast Intl - Los Angeles, Belfast City - Los Angeles or Belfast City - Ontario 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 £362). Flying from Belfast to California in December is currently the most expensive (average of £515). 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 3 airlines flying from Belfast to California

Discover the top 3 airlines 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 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£375Average£593FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£481Average£533FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
KLMCheapest£515Average£623FlexibilityNo cancel feeOn-time75%
Search KLM 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.

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