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Cheap flights from California to Belfast from £276

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 19/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BHD
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from California to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from California to Belfast
Explore the most affordable flight options available from California to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 November 2025.

Wed 3/1213:55SFO - BHD
1 stop18h 55mDelta
Sun 7/1217:20BHD - SFO
1 stop26h 30mDelta
Deal found 13/11£518
Sat 15/1111:00SFO - BHD
2 stops19h 15mAmerican Airlines
Sun 23/1110:40BHD - SFO
2 stops19h 19mAmerican Airlines
Deal found 14/11£534
Sat 15/1117:00SFO - BHD
2 stops19h 30mAmerican Airlines
Sat 22/1106:35BHD - SFO
2 stops19h 49mAmerican Airlines
Deal found 12/11£535
Sat 6/1213:55SFO - BHD
1 stop18h 55mMultiple Airlines
Fri 12/1217:20BHD - SFO
1 stop26h 30mMultiple Airlines
Deal found 13/11£540
Sat 15/1106:00SFO - BHD
2 stops26h 50mDelta
Sun 23/1106:30BHD - SFO
1 stop13h 20mDelta
Deal found 13/11£544
Mon 24/1117:45LAX - BHD
1 stop14h 20mBritish Airways
Sat 6/1206:35BHD - LAX
1 stop16h 45mBritish Airways
Deal found 12/11£578
Fri 28/1115:30LAX - BHD
1 stop14h 45mBritish Airways
Tue 2/1219:25BHD - LAX
1 stop26h 05mBritish Airways
Deal found 12/11£600
Mon 24/1120:15LAX - BHD
2 stops29h 30mAer Lingus
Sat 6/1207:15BHD - LAX
2 stops19h 15mAer Lingus
Deal found 13/11£636
Mon 24/1117:45LAX - BHD
1 stop14h 20mAmerican Airlines
Sat 6/1206:35BHD - LAX
1 stop16h 45mAmerican Airlines
Deal found 13/11£641
Sun 23/1109:55LAX - BHD
2 stops16h 25mBritish Airways
Sun 7/1212:10BHD - LAX
1 stop14h 20mBritish Airways
Deal found 12/11£656
Wed 3/1209:00SFO - BHD
2 stops21h 15mAmerican Airlines
Sun 7/1206:30BHD - SFO
2 stops20h 00mAmerican Airlines
Deal found 11/11£665
Sat 6/1217:20SFO - BHD
2 stops16h 00mAer Lingus
Fri 12/1218:00BHD - SFO
2 stops29h 35mAer Lingus
Deal found 12/11£698

Cheap flight deals from California to Belfast

Keep the following information in mind while searching for California to Belfast flight deals. Data was last updated 14 November 2025.

Round-trip from

£464

One-way from

£276

Popular in

June

Cheapest in

October

Average price

£680
British Airways
  • British Airways
  • 23/1-3/2
  • 2 total stops
  • 32h 30m total
  • California to Belfast
Search Deals
19/3
  • 19/3
  • 2 total stops
  • 20h 50m total
  • California to Belfast
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£115 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

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

Fly from

California

Fly to

Belfast

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

15:30-14:15

1 stop14h 45m

Belfast City

Tue 3/2

08:45-18:30

1 stop17h 45m

£464

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

09:50-10:30

2 stops16h 40m

Belfast City

Tue 3/2

11:25-18:30

1 stop15h 05m

£475

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 3/3

17:30-14:50

1 stop13h 20m

Belfast City

Tue 10/3

06:35-19:45

1 stop20h 10m

£486

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 3/3

08:00-10:30

2 stops18h 30m

Belfast City

Tue 10/3

08:45-20:58

2 stops19h 13m

£496

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 16/1

17:30-19:15

1 stop17h 45m

Belfast City

Fri 23/1

08:45-15:00

1 stop14h 15m

£510

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

13:55-21:00

1 stop23h 05m

Belfast City

Sun 7/12

06:30-11:50

1 stop13h 20m

£518

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

13:55-16:50

1 stop18h 55m

Belfast City

Sun 7/12

06:30-11:50

1 stop13h 20m

£519

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 24/11

17:45-16:05

1 stop14h 20m

Belfast City

Sat 6/12

06:35-15:20

1 stop16h 45m

£578

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 28/11

15:30-14:15

1 stop14h 45m

Belfast City

Tue 2/12

19:25-13:30

1 stop26h 05m

£600

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 12/1

18:00-16:05

1 stop14h 05m

Belfast City

Mon 19/1

11:30-21:36

2 stops18h 06m

£640

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 27 results
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Best time to book a flight from California to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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

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

Currently, March is the cheapest month in which you can book a flight from California to Belfast (average of £445). Flying from California to Belfast in June is currently the most expensive (average of £695). 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. 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.

One of the essential ways to save on airfare from California to Belfast 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 26% on airfare.

How much does it cost for a return flight from California to Belfast?

Related info for your journey

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

    For as low as £464, British Airways can have you in Belfast from California in 14h 45m. The distance from California to Belfast is about 5128 mi. This flight may include one or multiple stops.

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

    While some choose either Los Angeles - Belfast City or San Francisco - Belfast Intl, Los Angeles - Belfast Intl is the most popular route from California to Belfast.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from California to Belfast 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?

    Currently, March is the cheapest month in which you can book a flight from California to Belfast (average of £445). Flying from California to Belfast in June is currently the most expensive (average of £695). 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

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Alternative routes for California to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from California to Belfast?

Deals for California to Belfast 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?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from California to Belfast.

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

Certainly. Search results for flights to Belfast 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 become cheaper?

Of course! You can now track prices for flights from California to Belfast 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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