$329+ Cheap flights from California to Belfast Intl (BFS)
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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
Nov 29 — Dec 61
1 adult, Economy
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Cheapest flights from California to Belfast IntlExplore the most affordable flight options available from California to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.
Explore the most affordable flight options available from California to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Tue 11/258:25 amSFO - BFS
2 stops29h 15mMultiple Airlines
Tue 12/25:30 pmBFS - SFO
2 stops27h 10mMultiple Airlines
Deal found 10/28![Multiple Airlines logo]()
$817
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Fri 12/128:15 pmLAX - BFS
2 stops17h 45mMultiple Airlines
Fri 12/199:00 pmBFS - LAX
2 stops29h 30mMultiple Airlines
Deal found 10/28![Multiple Airlines logo]()
$860
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:55 pmSFO - BFS
1 stop18h 10mMultiple Airlines
Tue 12/28:55 pmBFS - SFO
2 stops31h 15mMultiple Airlines
Deal found 10/28![Multiple Airlines logo]()
$887
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:55 pmSFO - BFS
1 stop18h 10mMultiple Airlines
Thu 11/69:00 pmBFS - SFO
2 stops31h 10mMultiple Airlines
Deal found 10/28![Multiple Airlines logo]()
$957
This Trip.com deal was found by Cheapflights users on 10/30. 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.
Thu 11/612:30 pmSJC - BFS
2 stops25h 05mMultiple Airlines
Sat 11/157:45 pmBFS - SJC
2 stops33h 08mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$1,078
This Trip.com deal was found by Cheapflights users on 10/30. 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.
Tue 11/41:00 pmSJC - BFS
2 stops24h 50mMultiple Airlines
Thu 11/136:30 amBFS - SJC
2 stops24h 26mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$1,090
This eDestinos deal was found by Cheapflights users on 10/30. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:10 pmLAX - BFS
2 stops18h 40mMultiple Airlines
Fri 1/28:05 amBFS - LAX
2 stops44h 10mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$1,570
Cheap flight deals from California to Belfast Intl
Keep the following information in mind while searching for California to Belfast Intl flight deals. Data was last updated October 30, 2025.
Round-trip from | $817 (Mytrip) |
|---|---|
One-way from | $329 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $633 |
Cheapflights Fare Finder
Customize your flight search to find flights from California to Belfast Intl 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 October 30, 2025.
Use the filters below to find and compare flights from California to Belfast Intl Airport that are best for you.
Fly from
California
Fly to
Belfast Intl
Route
Depart
Return
Price
San FranciscoBelfast
SFO - BFS
SFOBFS
San Francisco
Tue 11/25
8:25 am-9:40 pm
2 stops29h 15m
Belfast Intl
Tue 12/2
5:30 pm-12:40 pm
2 stops27h 10m
$817
Los AngelesBelfast
LAX - BFS
LAXBFS
Los Angeles
Fri 12/12
8:15 pm-10:00 pm
2 stops17h 45m
Belfast Intl
Fri 12/19
9:00 pm-6:30 pm
2 stops29h 30m
$860
Las VegasBelfast
LAS - BFS
LASBFS
Las Vegas Harry Reid Intl
Sun 2/8
12:15 am-8:10 pm
3 stops35h 55m
Belfast Intl
Wed 3/11
8:35 am-9:33 pm
2 stops19h 58m
$992
Las VegasBelfast
LAS - BFS
LASBFS
Las Vegas Harry Reid Intl
Tue 3/3
7:00 am-8:10 pm
3 stops29h 10m
Belfast Intl
Thu 4/2
6:40 am-5:35 pm
2 stops18h 55m
$1,120
San FranciscoBelfast
SFO - BFS
SFOBFS
San Francisco
Tue 12/16
5:20 pm-10:35 pm
2 stops21h 15m
Belfast Intl
Tue 12/30
6:30 am-3:35 pm
2 stops17h 05m
$1,463
Los AngelesBelfast
LAX - BFS
LAXBFS
Los Angeles
Tue 12/23
7:10 pm-9:50 pm
2 stops18h 40m
Belfast Intl
Fri 1/2
8:05 am-8:15 pm
2 stops44h 10m
$1,570
Los AngelesBelfast
LAX - BFS
LAXBFS
Los Angeles
Sat 11/15
7:00 pm-10:05 am
3 stops31h 05m
$329
Best time to book a flight from California to Belfast Intl
Have a flexible travel schedule? Discover the best time to fly to Belfast Intl 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 Intl Airport
What is the cheapest month to book a flight from California to Belfast Intl Airport?
Currently, April is the cheapest month in which you can book a flight from California to Belfast Intl Airport (average of $587). Flying from California to Belfast Intl Airport in June is currently the most expensive (average of $907). 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 Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.
When flying from California to Belfast Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 11% versus a flight at noon.
Related info for your journey
Find useful and relevant information for your journey from California to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for California to Belfast Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from California to Belfast Intl
Discover the top airline that operate flights from California to Belfast Intl. 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 October 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$621 | Average$837 | FlexibilityNo cancel fee | On-time70% |