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Cheap flights from Belfast Intl Airport to California from £562

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LAX
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 14 November 2025.

Sun 28/1223:05BFS - LAX
2 stops27h 25mMultiple Airlines
Sun 4/113:05LAX - BFS
2 stops21h 50mMultiple Airlines
Deal found 13/11£1,178
Sat 27/1206:00BFS - SFO
2 stops17h 35mMultiple Airlines
Sat 3/117:20SFO - BFS
2 stops21h 20mMultiple Airlines
Deal found 12/11£1,195
Sun 28/1207:30BFS - SFO
2 stops17h 05mMultiple Airlines
Sun 4/114:40SFO - BFS
2 stops20h 15mMultiple Airlines
Deal found 13/11£1,217
Sun 28/1223:05BFS - LAS
3 stops41h 57mMultiple Airlines
Sun 4/116:05LAS - BFS
2 stops22h 05mMultiple Airlines
Deal found 13/11£1,250
Sat 27/1222:25BFS - LAX
2 stops28h 05mMultiple Airlines
Sat 3/120:15LAX - BFS
2 stops18h 25mMultiple Airlines
Deal found 12/11£1,299
Sat 27/1206:00BFS - LAS
3 stops24h 30mMultiple Airlines
Sat 3/119:35LAS - BFS
2 stops19h 05mMultiple Airlines
Deal found 11/11£1,391

Cheap 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 14 November 2025.

Round-trip from

£562

Popular in

February

Cheapest in

June
1/2-15/2
  • 1/2-15/2
  • 5 total stops
  • 55h 25m total
  • Belfast to California
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£11 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
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 14 November 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to California that are best for you.

Fly from

Belfast Intl

Fly to

California

Route

Depart

Return

Price

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sun 1/2

11:00-14:35

3 stops35h 35m

San Francisco

Sun 15/2

18:20-22:10

2 stops19h 50m

£562

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Wed 15/4

20:10-21:33

3 stops33h 23m

Las Vegas Harry Reid Intl

Wed 22/4

20:25-19:40

2 stops15h 15m

£863

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 6/1

06:30-15:35

2 stops17h 05m

San Francisco

Tue 20/1

13:00-21:40

2 stops24h 40m

£1,016

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Sun 28/12

23:05-18:30

2 stops27h 25m

Los Angeles

Sun 4/1

13:05-18:55

2 stops21h 50m

£1,178

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sat 27/12

06:00-15:35

2 stops17h 35m

San Francisco

Sat 3/1

17:20-22:40

2 stops21h 20m

£1,195

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sun 28/12

07:30-16:35

2 stops17h 05m

San Francisco

Sun 4/1

14:40-18:55

2 stops20h 15m

£1,217

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Sun 28/12

23:05-09:02

3 stops41h 57m

Las Vegas Harry Reid Intl

Sun 4/1

16:05-22:10

2 stops22h 05m

£1,250

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Sat 27/12

22:25-18:30

2 stops28h 05m

Los Angeles

Sat 3/1

20:15-22:40

2 stops18h 25m

£1,299

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Sat 27/12

06:00-22:30

3 stops24h 30m

Las Vegas Harry Reid Intl

Sat 3/1

19:35-22:40

2 stops19h 05m

£1,391

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Thu 1/1

10:15-08:11

3 stops29h 56m

£611

Flights are sorted by cheapest return flights first.

Deals found on 12/11

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

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

Find hourly flight availability from Belfast Intl 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 14 November 2025.

When flying from Belfast Intl Airport to California, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 7% versus a flight in the morning.

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 14 November 2025.
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
7.2
Good
11,051 reviews
Check prices

Overall

7.2

Boarding

7.5

Entertainment

6.9

Food

6.4

Comfort

7.2

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.
American Airlines
7.2
Good
11,051 reviews
American Airlines
7.2
Good
11,051 reviews
Check prices

Overall

7.2

Boarding

7.5

Entertainment

6.9

Food

6.4

Comfort

7.2

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.
British Airways
6.7
Okay
7,521 reviews
American Airlines
7.2
Good
11,051 reviews
Check prices

Overall

7.2

Boarding

7.5

Entertainment

6.9

Food

6.4

Comfort

7.2

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.

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 - Las Vegas Harry Reid Intl, Belfast Intl - Los Angeles 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

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Alternative routes for Belfast Intl to California

See prices for flight routes from nearby airports that may be better suited for you.
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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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£404Average£515FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£482Average£534FlexibilityNo 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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