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$308+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BHD
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
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 21, 2026.

This SmartFares deal was found by Cheapflights users on 1/18. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/910:00 pm
LAX
-
BHD
1 stop13h 35m
British Airways
Wed 3/189:15 am
BHD
-
LAX
1 stop14h 35m
British Airways
Deal found 1/18$560
This SmartFares deal was found by Cheapflights users on 1/21. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/228:40 pm
SFO
-
BHD
1 stop15h 35m
British Airways
Tue 3/106:35 am
BHD
-
SFO
1 stop16h 25m
British Airways
Deal found 1/21$563
This oojo deal was found by Cheapflights users on 1/20. 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 9/1411:35 am
SFO
-
BHD
2 stops17h 20m
British Airways
Fri 9/256:35 am
BHD
-
SFO
1 stop15h 15m
British Airways
Deal found 1/20$586
This British Airways deal was found by Cheapflights users on 1/20. 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 3/43:30 pm
LAX
-
BHD
1 stop17h 05m
British Airways
Sun 3/88:25 pm
BHD
-
LAX
1 stop25h 05m
British Airways
Deal found 1/20$601
This British Airways deal was found by Cheapflights users on 1/20. 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 2/2512:34 pm
LAX
-
BHD
2 stops17h 41m
British Airways
Sun 3/112:10 pm
BHD
-
LAX
1 stop33h 20m
British Airways
Deal found 1/20$605
This FlightHub deal was found by Cheapflights users on 1/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:50 am
SFO
-
BHD
2 stops20h 30m
British Airways
Tue 10/136:35 am
BHD
-
SFO
1 stop15h 15m
British Airways
Deal found 1/20$608
This oojo deal was found by Cheapflights users on 1/21. 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.
Wed 3/42:27 pm
SFO
-
BHD
2 stops18h 08m
British Airways
Sun 3/89:10 am
BHD
-
SFO
1 stop13h 50m
British Airways
Deal found 1/21$620
This oojo deal was found by Cheapflights users on 1/20. 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 4/144:18 pm
SJC
-
BHD
2 stops18h 37m
British Airways
Tue 10/139:35 am
BHD
-
SJC
2 stops20h 46m
British Airways
Deal found 1/20$631
This British Airways deal was found by Cheapflights users on 1/20. 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 2/257:00 am
LAS
-
BHD
2 stops19h 15m
British Airways
Sun 3/110:40 am
BHD
-
LAS
2 stops19h 10m
British Airways
Deal found 1/20$640
This British Airways deal was found by Cheapflights users on 1/20. 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 3/42:39 pm
ONT
-
BHD
2 stops20h 31m
British Airways
Sun 3/89:10 am
BHD
-
ONT
2 stops21h 49m
British Airways
Deal found 1/20$640
This British Airways deal was found by Cheapflights users on 1/18. 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 3/411:01 am
SJC
-
BHD
2 stops24h 09m
British Airways
Sun 3/83:10 pm
BHD
-
SJC
2 stops38h 22m
British Airways
Deal found 1/18$641
This British Airways deal was found by Cheapflights users on 1/18. 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 2/256:00 am
ONT
-
BHD
2 stops26h 35m
British Airways
Sun 3/110:40 am
BHD
-
ONT
2 stops19h 49m
British Airways
Deal found 1/18$641

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 21, 2026.

Round-trip from

$560
(SmartFares)

One-way from

$308
(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 21, 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 3/9

10:00 pm-6:35 pm

1 stop13h 35m

Belfast City

Wed 3/18

9:15 am-4:50 pm

1 stop14h 35m

$560

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 2/22

6:00 am-10:20 am

2 stops20h 20m

Belfast City

Tue 3/10

10:00 am-10:49 pm

2 stops19h 49m

$601

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 3/4

3:30 pm-4:35 pm

1 stop17h 05m

Belfast City

Sun 3/8

9:10 am-6:30 pm

1 stop17h 20m

$601

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 2/25

12:34 pm-2:15 pm

2 stops17h 41m

Belfast City

Sun 3/1

12:10 pm-1:30 pm

1 stop33h 20m

$605

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 4/14

10:50 am-3:20 pm

2 stops20h 30m

Belfast City

Tue 10/13

6:35 am-1:50 pm

1 stop15h 15m

$608

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/4

2:27 pm-4:35 pm

2 stops18h 08m

Belfast City

Sun 3/8

9:10 am-3:00 pm

1 stop13h 50m

$620

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Tue 4/14

4:18 pm-6:55 pm

2 stops18h 37m

Belfast City

Tue 10/13

9:35 am-10:21 pm

2 stops20h 46m

$631

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 5/8

4:35 pm-6:10 pm

1 stop17h 35m

Belfast City

Mon 5/11

6:30 pm-1:50 pm

1 stop27h 20m

$639

Las VegasBelfast

LAS - BHD

LASBHD

Las Vegas Harry Reid Intl

Wed 2/25

7:00 am-10:15 am

2 stops19h 15m

Belfast City

Sun 3/1

10:40 am-9:50 pm

2 stops19h 10m

$640

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 3/4

2:39 pm-7:10 pm

2 stops20h 31m

Belfast City

Sun 3/8

9:10 am-10:59 pm

2 stops21h 49m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 43 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.

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 fly from California to Belfast in about 13h 35m. The time it takes to get you to your destination can typically vary by up to . There are 5128 mi between California and Belfast.

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

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

  • 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

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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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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 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$599Average$898FlexibilityNo cancel feeOn-time70%

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