Find flights
When to book
Airlines
FAQs

Cheap flights from Belfast Intl Airport to California from £417

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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LAX
15 Jan — 22 Jan1
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 16 December 2025.

Tue 23/1209:00BFS - LAX
2 stops34h 10mMultiple Airlines
Mon 5/120:15LAX - BFS
2 stops16h 00mMultiple Airlines
Deal found 14/12£976

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 16 December 2025.

Round-trip from

£533

One-way from

£417

Popular in

December

Cheapest in

June

Average price

£891
29/1-5/2
  • 29/1-5/2
  • 4 total stops
  • 53h 10m total
  • Belfast to California
Search Deals
15/5
  • 15/5
  • 3 total stops
  • 37h 50m total
  • Belfast to California
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£77 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 16 December 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

Thu 29/1

14:45-14:35

2 stops31h 50m

San Francisco

Thu 5/2

16:40-22:00

2 stops21h 20m

£533

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Wed 28/1

16:25-17:00

2 stops32h 35m

Los Angeles

Wed 4/2

19:30-22:10

2 stops18h 40m

£545

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Thu 15/1

06:30-12:33

3 stops38h 03m

Los Angeles

Sun 18/1

15:00-21:55

3 stops22h 55m

£644

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Sun 8/2

20:45-16:35

2 stops27h 50m

Los Angeles

Fri 13/2

20:15-22:00

2 stops17h 45m

£678

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Wed 28/1

06:30-22:31

2 stops24h 01m

Las Vegas Harry Reid Intl

Wed 4/2

13:50-16:10

2 stops18h 20m

£739

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Fri 15/5

08:50-14:40

3 stops37h 50m

£417

Flights are sorted by cheapest return flights first.

Deals found on 14/12

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 16 December 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 16 December 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
11,047 reviews
Check prices

Overall

7.2

Crew

8.0

Food

6.5

Boarding

7.5

Comfort

7.2

Entertainment

6.9

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
11,047 reviews
American Airlines
7.2
Good
11,047 reviews
Check prices

Overall

7.2

Crew

8.0

Food

6.5

Boarding

7.5

Comfort

7.2

Entertainment

6.9

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
7,580 reviews
American Airlines
7.2
Good
11,047 reviews
Check prices

Overall

7.2

Crew

8.0

Food

6.5

Boarding

7.5

Comfort

7.2

Entertainment

6.9

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 - San Francisco and Belfast Intl - Los Angeles.

  • 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

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

Alternative routes for Belfast Intl to California

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to John F Kennedy Intl flights
Belfast Intl to Hobby flights
Belfast City to John F Kennedy Intl flights
Belfast Intl to Newark flights
Belfast Intl to Orlando flights
Belfast City to Newark flights
Belfast City to Orlando flights
Belfast City to LaGuardia flights
Belfast Intl to Dallas/Fort Worth flights
Belfast Intl to George Bush Intcntl flights
Belfast City to Dallas/Fort Worth flights
Belfast Intl to Miami flights
Belfast City to Seattle flights
Belfast City to Miami flights
Belfast Intl to Las Vegas flights
Belfast Intl to Minneapolis flights
Belfast City to San Francisco flights
Belfast City to Las Vegas flights
Belfast Intl to Boston flights
Belfast City to Omaha flights
Belfast City to Boston flights
Belfast Intl to Denver flights
Belfast Intl to Grand Rapids flights
Belfast Intl to Hartford flights
Belfast Intl to Detroit flights
Belfast Intl to Charlotte flights
Belfast Intl to Daytona Beach flights
Belfast City to San Antonio flights
Belfast Intl to Los Angeles flights
Belfast City to Baton Rouge flights
Belfast City to Santa Ana flights
Belfast City to Los Angeles flights

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 16 December 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£398Average£507FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£474Average£525FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.