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$289+ Cheap flights from California to Belfast

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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BHD
Feb 4 — Feb 111
Wed 2/4
Wed 2/11
1 adult, Economy
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Cheap flight deals from California to Belfast

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 January 5, 2026.

This oojo deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/28:50 amLAX - BHD
2 stops17h 50mBritish Airways
Mon 2/95:45 pmBHD - LAX
1 stop27h 45mBritish Airways
Deal found 1/4$622
This British Airways deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/259:00 pmLAX - BHD
1 stop14h 10mBritish Airways
Sun 3/18:25 pmBHD - LAX
1 stop27h 25mBritish Airways
Deal found 1/4$627
This oojo deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/281:28 pmLAX - BHD
2 stops17h 52mBritish Airways
Tue 5/129:35 amBHD - LAX
1 stop16h 50mBritish Airways
Deal found 1/3$638
This oojo deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3111:13 pmSFO - BHD
2 stops27h 07mBritish Airways
Sat 2/76:00 pmBHD - SFO
1 stop29h 00mBritish Airways
Deal found 1/3$672
This British Airways deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:40 pmSFO - BHD
1 stop14h 35mBritish Airways
Tue 3/37:25 pmBHD - SFO
1 stop27h 35mBritish Airways
Deal found 1/4$677
This oojo deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:30 amSFO - BHD
2 stops19h 10mBritish Airways
Sun 10/259:10 amBHD - SFO
1 stop17h 35mBritish Airways
Deal found 1/3$682
This KLM deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/151:55 pmSFO - BHD
1 stop18h 55mKLM
Wed 1/215:20 pmBHD - SFO
1 stop26h 30mKLM
Deal found 1/3$698
This Flysmarter deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/211:55 pmSFO - BHD
1 stop18h 55mMultiple Airlines
Sun 1/255:20 pmBHD - SFO
2 stops30h 38mMultiple Airlines
Deal found 1/5$701
This British Airways deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1112:46 pmSJC - BHD
2 stops21h 59mBritish Airways
Sun 10/259:10 amBHD - SJC
2 stops20h 06mBritish Airways
Deal found 1/3$703
This oojo deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/213:13 pmSFO - BHD
2 stops36h 07mBritish Airways
Sun 4/53:50 pmBHD - SFO
1 stop30h 00mBritish Airways
Deal found 1/4$705
This oojo deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/159:00 pmSFO - BHD
1 stop13h 50mBritish Airways
Wed 1/2111:25 amBHD - SFO
2 stops19h 47mBritish Airways
Deal found 1/4$706
This oojo deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/284:52 pmONT - BHD
2 stops18h 03mBritish Airways
Tue 5/129:35 amBHD - ONT
2 stops19h 19mBritish Airways
Deal found 1/3$716

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 January 5, 2026.

Round-trip from

$622
(oojo)

One-way from

$289
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$700
From California to Belfast
Search Deals
One-way flight from California to Belfast
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated January 5, 2026.
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

Mon 2/2

8:50 am-10:40 am

2 stops17h 50m

Belfast City

Mon 2/9

5:45 pm-1:30 pm

1 stop27h 45m

$622

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 3/4

6:00 pm-7:10 pm

1 stop17h 10m

Belfast City

Sun 3/8

6:30 am-6:30 pm

1 stop20h 00m

$627

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 2/25

6:00 pm-7:10 pm

1 stop17h 10m

Belfast City

Sun 3/1

12:10 pm-6:30 pm

1 stop14h 20m

$627

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Tue 4/28

1:28 pm-3:20 pm

2 stops17h 52m

Belfast City

Tue 5/12

9:35 am-6:25 pm

1 stop16h 50m

$638

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 3/5

5:30 pm-4:40 pm

1 stop15h 10m

Belfast City

Mon 3/9

7:25 pm-7:45 pm

1 stop31h 20m

$677

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 2/27

8:40 pm-7:15 pm

1 stop14h 35m

Belfast City

Tue 3/3

5:15 pm-3:00 pm

1 stop29h 45m

$677

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 1/15

1:55 pm-4:50 pm

1 stop18h 55m

Belfast City

Wed 1/21

5:20 pm-11:50 am

1 stop26h 30m

$698

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 1/21

10:30 am-4:50 pm

2 stops22h 20m

Belfast City

Sun 1/25

5:20 pm-3:58 pm

2 stops30h 38m

$703

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 1/31

5:30 pm-4:45 pm

1 stop15h 15m

Belfast City

Sat 2/7

6:00 pm-3:00 pm

1 stop29h 00m

$703

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 1/15

5:30 pm-6:50 pm

1 stop17h 20m

Belfast City

Wed 1/21

11:25 am-11:12 pm

2 stops19h 47m

$706

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Showing 1-10 of 53 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 round-trip 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 $585). Flying from California to Belfast in June is currently the most expensive (average of $927). 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.

How much does it cost to fly round-trip 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?

    Airlines like British Airways and KLM fly from California to Belfast in about 17h 50m. The time it takes to get you to your destination can typically vary by up to 1h 05m. There are 5128 mi between California and Belfast. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The most popular route from California to Belfast is Los Angeles - Belfast Intl. You may also consider Los Angeles - Belfast City or Ontario - Belfast City.

  • 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 vacation 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 $585). Flying from California to Belfast in June is currently the most expensive (average of $927). 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

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

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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Top airline flying from California to Belfast

Discover the top airline that operate flights from California to Belfast. 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 2,558,603 searches. Data last updated January 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$599Average$859FlexibilityNo cancel feeOn-time70%

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