Cheap flights from California to Belfast from £229
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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
Find flight deals from California to Belfast
Cheapest flights from California to BelfastExplore 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 24 October 2025.
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 24 October 2025.
Cheap flight deals from California to Belfast
Keep the following information in mind while searching for California to Belfast flight deals. Data was last updated 24 October 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from California to Belfast that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Tue 24/3
18:30-16:45
1 stop15h 15m
Belfast City
Tue 31/3
06:35-13:50
1 stop15h 15m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Tue 24/3
10:24-10:30
2 stops17h 06m
Belfast City
Tue 31/3
06:35-17:40
1 stop19h 05m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Fri 23/1
15:30-14:15
1 stop14h 45m
Belfast City
Tue 3/2
11:25-18:30
1 stop15h 05m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Wed 18/2
21:00-20:15
1 stop15h 15m
Belfast City
Fri 27/2
11:30-18:25
1 stop14h 55m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Wed 3/12
13:55-16:50
1 stop18h 55m
Belfast City
Sun 7/12
17:20-11:50
1 stop26h 30m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Wed 3/12
13:55-16:50
1 stop18h 55m
Belfast City
Sun 7/12
06:30-11:50
1 stop13h 20m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Thu 12/3
16:30-14:00
1 stop14h 30m
Belfast City
Wed 18/3
19:25-14:30
1 stop26h 05m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Mon 10/11
15:30-16:05
1 stop16h 35m
Belfast City
Mon 17/11
19:25-15:50
1 stop28h 25m
Santa AnaBelfast
SNA - BHD
SNABHD
Santa Ana J. Wayne/Orange Cnty
Wed 12/11
12:45-16:50
2 stops20h 05m
Belfast City
Sun 16/11
06:30-22:19
2 stops23h 49m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Fri 28/11
07:15-16:50
2 stops25h 35m
Belfast City
Wed 17/12
06:30-20:15
2 stops21h 45m
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.
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 £680). 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 24 October 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.
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.
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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.
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.