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Cheap flights from California to Belfast Intl Airport from £644

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/12. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from California to Belfast Intl

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

Round-trip from

£644

Popular in

June

Cheapest in

October

Average price

£480
14/12-21/12
  • 14/12-21/12
  • 4 total stops
  • 35h 20m total
  • California to Belfast
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£121 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from California to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from California to Belfast Intl
Explore the most affordable flight options available from California to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2025.

Sun 14/1220:15LAX - BFS
2 stops16h 00mMultiple Airlines
Sun 21/1207:10BFS - LAX
2 stops19h 20mMultiple Airlines
Deal found 30/10£644
Thu 6/1119:25SFO - BFS
2 stops18h 35mMultiple Airlines
Sat 15/1123:10BFS - SFO
3 stops47h 25mMultiple Airlines
Deal found 30/10£797
Thu 6/1112:30SJC - BFS
2 stops25h 05mMultiple Airlines
Sat 15/1119:45BFS - SJC
2 stops33h 08mMultiple Airlines
Deal found 30/10£818
Tue 4/1113:00SJC - BFS
2 stops24h 50mMultiple Airlines
Thu 13/1106:30BFS - SJC
2 stops24h 26mMultiple Airlines
Deal found 30/10£827
Tue 4/1114:40SFO - BFS
2 stops23h 55mMultiple Airlines
Thu 13/1120:05BFS - SFO
2 stops28h 00mMultiple Airlines
Deal found 30/10£938
Tue 4/1114:40SFO - BFS
2 stops23h 55mMultiple Airlines
Wed 12/1108:20BFS - SFO
3 stops34h 45mMultiple Airlines
Deal found 30/10£977
Tue 23/1219:10LAX - BFS
2 stops18h 40mMultiple Airlines
Fri 2/108:05BFS - LAX
2 stops44h 10mMultiple Airlines
Deal found 30/10£1,191
Fri 21/1113:00SFO - BFS
2 stops35h 25mMultiple Airlines
Sun 30/1106:30BFS - SFO
1 stop21h 40mMultiple Airlines
Deal found 30/10£1,502

Cheapflights Fare Finder

 
Customise your flight search to find flights from California to Belfast Intl 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 California to Belfast Intl Airport that are best for you.

Fly from

California

Fly to

Belfast Intl

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Sun 14/12

20:15-20:15

2 stops16h 00m

Belfast Intl

Sun 21/12

07:10-18:30

2 stops19h 20m

£644

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Fri 20/3

20:10-22:00

2 stops18h 50m

Belfast Intl

Mon 30/3

14:20-14:45

3 stops32h 25m

£845

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Tue 23/12

19:10-21:50

2 stops18h 40m

Belfast Intl

Fri 2/1

08:05-20:15

2 stops44h 10m

£1,191

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Fri 21/11

13:00-08:25

2 stops35h 25m

Belfast Intl

Sun 30/11

06:30-20:10

1 stop21h 40m

£1,502

Long BeachBelfast

LGB - BFS

LGBBFS

Long Beach Municipal

Sat 15/11

07:42-10:05

3 stops42h 23m

£858

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Best time to book a flight from California to Belfast Intl

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

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

Currently, April is the cheapest month in which you can book a flight from California to Belfast Intl Airport (average of £445). Flying from California to Belfast Intl Airport in June is currently the most expensive (average of £688). 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 CA to BFS?

Find hourly flight availability from California to Belfast Intl. 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.

One of the essential ways to save on airfare from California to Belfast Intl Airport is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at midday could potentially save you up to 29% on airfare.

Related info for your journey

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

    Most travelers choose Los Angeles - Belfast Intl, San Francisco - Belfast Intl or Oakland - Belfast Intl when deciding on the best route from California to Belfast Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from California to Belfast Intl 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 California to Belfast Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from California to Belfast Intl Airport (average of £445). Flying from California to Belfast Intl Airport in June is currently the most expensive (average of £688). 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

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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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 California to Belfast Intl?

Deals for California to Belfast Intl 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 California to Belfast Intl?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast Intl from California.

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

Certainly. Search results for flights to Belfast Intl from California shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from California today and book when prices fit your budget.

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