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Cheap flights from California to Belfast from £300

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BHD
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 5 Dezember 2025.

Di 9/1219:15LAX - BHD
1 stop15h 25mAmerican Airlines
Mo 15/1206:35BHD - LAX
1 stop21h 50mAmerican Airlines
Deal found 2/12£459
Di 9/1213:45LAX - BHD
1 stop23h 15mVirgin Atlantic
Di 16/1206:30BHD - LAX
2 stops24h 35mVirgin Atlantic
Deal found 2/12£478
Di 9/1208:54LAX - BHD
2 stops23h 56mDelta
Di 16/1206:30BHD - LAX
2 stops24h 35mDelta
Deal found 2/12£481
Di 9/1213:45LAX - BHD
1 stop23h 15mDelta
Mo 15/1206:30BHD - LAX
2 stops22h 55mDelta
Deal found 2/12£516
Sa 6/1211:41SFO - BHD
2 stops21h 09mKLM
Fr 12/1217:20BHD - SFO
1 stop26h 30mKLM
Deal found 4/12£537
Di 9/1219:15LAX - BHD
1 stop15h 25mAmerican Airlines
Di 16/1206:35BHD - LAX
1 stop14h 55mAmerican Airlines
Deal found 2/12£560
Mi 10/1213:45LAX - BHD
1 stop23h 15mVirgin Atlantic
Mo 15/1217:20BHD - LAX
1 stop26h 25mVirgin Atlantic
Deal found 2/12£561
Mi 10/1213:45LAX - BHD
1 stop23h 15mVirgin Atlantic
Mi 17/1206:30BHD - LAX
2 stops24h 35mVirgin Atlantic
Deal found 3/12£600
Mo 8/1219:10LAX - BHD
2 stops17h 40mMultiple Airlines
Sa 13/1218:00BHD - LAX
2 stops29h 15mMultiple Airlines
Deal found 2/12£615
Sa 6/1220:40SFO - BHD
1 stop33h 15mBritish Airways
Fr 12/1219:35BHD - SFO
1 stop31h 10mBritish Airways
Deal found 5/12£639
Mi 10/1207:20LAX - BHD
2 stops25h 30mDelta
Mi 17/1206:30BHD - LAX
2 stops24h 35mDelta
Deal found 3/12£693
Mi 10/1213:45LAX - BHD
1 stop23h 15mKLM
Mi 17/1217:20BHD - LAX
1 stop26h 25mKLM
Deal found 3/12£718

Find flight deals from California to Belfast

Keep the following information in mind while searching for California to Belfast flight deals. Data was last updated 5 Dezember 2025.

Round-trip from

£433

One-way from

£300

Popular in

June

Cheapest in

October

Average price

£858
British Airways
  • British Airways
  • 23/1-3/2
  • 2 total stops
  • 34h 10m total
  • California to Belfast
Search Deals
British Airways
  • British Airways
  • 1/3
  • 2 total stops
  • 15h 44m total
  • California to Belfast
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£111 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 December 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 5 Dezember 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

Fr 23/1

13:20-14:15

2 stops16h 55m

Belfast City

Di 3/2

10:00-15:50

1 stop13h 50m

£444

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mi 11/2

15:30-14:15

1 stop14h 45m

Belfast City

So 15/2

15:10-15:50

1 stop32h 40m

£447

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mi 28/1

21:00-10:20

1 stop29h 20m

Belfast City

So 1/2

10:40-18:30

1 stop15h 50m

£454

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mi 11/2

17:30-07:30

1 stop30h 00m

Belfast City

So 15/2

12:10-15:00

1 stop34h 50m

£473

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mi 1/4

20:55-18:40

1 stop13h 45m

Belfast City

So 5/4

20:05-18:25

1 stop30h 20m

£478

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Di 31/3

17:05-15:20

1 stop14h 15m

Belfast City

So 5/4

20:05-18:25

1 stop30h 20m

£478

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

So 29/3

17:05-14:40

1 stop13h 35m

Belfast City

So 5/4

20:05-18:25

1 stop30h 20m

£478

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mo 30/3

17:05-17:30

1 stop16h 25m

Belfast City

So 5/4

20:05-18:25

1 stop30h 20m

£478

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mo 30/3

20:55-19:35

1 stop14h 40m

Belfast City

Mo 6/4

06:40-18:25

1 stop19h 45m

£478

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Di 31/3

11:50-16:55

2 stops21h 05m

Belfast City

Mo 6/4

17:30-11:50

1 stop26h 20m

£492

Flights are sorted by cheapest return flights first.

Deals found on 4/12

Showing 1-10 of 34 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 £439). 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 5 Dezember 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 £444, British Airways can have you in Belfast from California in 16h 55m. 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 Santa Ana J. Wayne/Orange Cnty - 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 £439). 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

Browse thousands of different options on Cheapflights for your next trip

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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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