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$437+ Cheap flights from Belfast to California

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LAX
oct. 15 — oct. 221
mer. 10/15
mer. 10/22
1 adult, Economy
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Cheap flight deals from Belfast to California

Keep the following information in mind while searching for Belfast to California flight deals. Data was last updated septembre 15, 2025.

Round-trip from

$636
(American Airlines)

One-way from

$437
(Kiwi.com)

Popular in

August

Cheapest in

May

Average price

$659
From Belfast to California
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One-way flight from Belfast to California
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Highest demand for flights based on searches. 8% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Belfast to California

Cheapest flights from Belfast to California
Explore the most affordable flight options available from Belfast to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septembre 15, 2025.

This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/2912:50 pmBFS - LAS
3 stops39h 15mMultiple Airlines
mer. 11/57:00 amLAS - BFS
3 stops29h 20mMultiple Airlines
Deal found 9/14$745
This Mytrip deal was found by Cheapflights users on 9/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/285:45 amBFS - LAX
3 stops43h 20mMultiple Airlines
mar. 11/412:15 pmLAX - BFS
2 stops25h 25mMultiple Airlines
Deal found 9/13$779
This SmartFares deal was found by Cheapflights users on 9/14. 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.
lun. 9/226:30 amBHD - LAS
1 stop20h 05mVirgin Atlantic
lun. 9/298:25 pmLAS - BHD
1 stop12h 30mVirgin Atlantic
Deal found 9/14$786
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/226:30 amBHD - LAS
1 stop20h 05mDelta
lun. 9/291:35 pmLAS - BHD
2 stops19h 20mDelta
Deal found 9/14$796
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/56:35 amBHD - LAS
1 stop17h 35mMultiple Airlines
dim. 11/99:05 pmLAS - BHD
1 stop15h 10mMultiple Airlines
Deal found 9/15$837
This Expedia deal was found by Cheapflights users on 9/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/56:35 amBHD - LAS
1 stop20h 15mBritish Airways
dim. 11/911:49 pmLAS - BHD
2 stops32h 16mBritish Airways
Deal found 9/15$846
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2210:45 pmBFS - LAS
2 stops27h 50mMultiple Airlines
lun. 9/298:25 pmLAS - BFS
2 stops16h 30mMultiple Airlines
Deal found 9/14$981
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/226:55 amBHD - LAS
3 stops24h 04mMultiple Airlines
lun. 9/297:05 pmLAS - BHD
2 stops17h 50mMultiple Airlines
Deal found 9/14$1,371

Cheapflights Fare Finder

 
Customize your flight search to find flights from Belfast to California 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 septembre 15, 2025.
Use the filters below to find and compare flights from Belfast to California that are best for you.

Fly from

Belfast

Fly to

California

Route

Depart

Return

Price

BelfastOntario

BHD - ONT

BHDONT

Belfast City

jeu. 2/26

11:05 am-11:43 pm

2 stops20h 38m

Ontario

lun. 3/2

11:05 am-4:05 pm

2 stops21h 00m

$636

BelfastOntario

BHD - ONT

BHDONT

Belfast City

jeu. 3/5

10:40 am-11:43 pm

2 stops21h 03m

Ontario

lun. 3/9

10:57 am-2:15 pm

2 stops20h 18m

$636

BelfastSanta Ana

BHD - SNA

BHDSNA

Belfast City

lun. 3/9

9:15 am-10:30 pm

2 stops20h 15m

Santa Ana J. Wayne/Orange Cnty

mer. 3/11

1:43 pm-10:20 am

2 stops37h 37m

$636

BelfastOntario

BHD - ONT

BHDONT

Belfast City

jeu. 3/5

11:05 am-9:40 pm

2 stops18h 35m

Ontario

lun. 3/9

6:00 am-2:15 pm

2 stops25h 15m

$639

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

jeu. 3/5

11:05 am-6:45 pm

1 stop15h 40m

San Francisco

lun. 3/9

10:37 am-10:40 am

2 stops17h 03m

$639

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

mer. 10/29

12:50 pm-9:05 pm

3 stops39h 15m

Las Vegas Harry Reid Intl

mer. 11/5

7:00 am-8:20 pm

3 stops29h 20m

$745

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

mar. 10/28

5:45 am-6:05 pm

3 stops43h 20m

Los Angeles

mar. 11/4

12:15 pm-9:40 pm

2 stops25h 25m

$779

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

mer. 11/5

6:35 am-8:49 pm

2 stops22h 14m

Las Vegas Harry Reid Intl

dim. 11/9

6:15 am-8:15 pm

2 stops30h 00m

$801

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

ven. 3/6

8:45 am-6:50 pm

1 stop18h 05m

Las Vegas Harry Reid Intl

mar. 3/10

9:55 pm-8:15 pm

1 stop15h 20m

$831

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

mar. 3/3

6:35 am-7:57 pm

2 stops21h 22m

Las Vegas Harry Reid Intl

jeu. 3/5

11:44 am-10:30 am

2 stops38h 46m

$837

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 18 results
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Best time to book a flight from Belfast to California

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

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

Currently, January is the cheapest month in which you can book a flight from Belfast to California (average of $246). Flying from Belfast to California in March is currently the most expensive (average of $325). 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 Belfast to California. 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 Belfast to California?

    Airlines like American Airlines and British Airways fly from Belfast to California in about 18h 35m. The time it takes to get you to your destination can typically vary by up to 2h 03m. Airlines will cover a distance of 5095 mi. This flight may include one or multiple stops.

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

    While some choose either Belfast City - San Francisco or Belfast Intl - Las Vegas Harry Reid Intl, Belfast Intl - San Francisco is the most popular route from Belfast to California.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Belfast to California (average of $246). Flying from Belfast to California in March is currently the most expensive (average of $325). 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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