Cheap flights from California to Belfast from £348
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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
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 23 April 2025.
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 23 April 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 23 April 2025.
Cheapflights Fare Finder
Customise 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 858,174 searches. Data last updated 23 April 2025.
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
Los AngelesBelfast
LAX - BFS
LAXBFS
Los Angeles
Sun 14/9
16:30-21:30
1 stop21h 00m
Belfast Intl
Thu 25/9
19:00-14:10
1 stop27h 10m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Wed 15/10
21:30-20:45
1 stop15h 15m
Belfast City
Thu 23/10
12:40-20:15
1 stop15h 35m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Thu 11/9
16:30-15:30
1 stop15h 00m
Belfast City
Wed 24/9
07:05-14:10
1 stop15h 05m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Mon 8/9
16:35-17:30
1 stop16h 55m
Belfast City
Wed 24/9
20:15-13:50
1 stop25h 35m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Wed 15/10
17:17-18:40
2 stops17h 23m
Belfast City
Thu 23/10
06:35-17:35
1 stop19h 00m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Thu 11/9
14:28-15:30
2 stops17h 02m
Belfast City
Thu 25/9
09:35-17:25
1 stop15h 50m
San JoseBelfast
SJC - BHD
SJCBHD
San Jose
Thu 11/9
14:27-15:30
2 stops17h 03m
Belfast City
Thu 25/9
09:35-22:22
2 stops20h 47m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Thu 11/9
13:35-11:10
1 stop13h 35m
Belfast City
Thu 25/9
16:20-18:33
2 stops34h 13m
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Thu 11/9
08:43-11:10
2 stops18h 27m
Belfast City
Thu 25/9
12:40-21:40
2 stops17h 00m
San FranciscoBelfast
SFO - BFS
SFOBFS
San Francisco
Thu 5/6
07:30-16:15
3 stops24h 45m
Belfast Intl
Thu 12/6
06:00-14:35
3 stops40h 35m
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, January is the cheapest month in which you can book a flight from California to Belfast (average of £67). Flying from California to Belfast in July is currently the most expensive (average of £90). 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 23 April 2025.
When flying from California to Belfast, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Rainfall in Belfast by month
Plan your trip to Belfast by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Belfast ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast when rainfall is around 50.0 mm.
Temperature in Belfast by month
Plan your trip to Belfast by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Belfast, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).
Reviews of airlines servicing Belfast
Get insights into the airlines that provide service to Belfast. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belfast. Reviews last updated 23 April 2025.
See what other customers who have flown with Delta, KLM and Finnair from California to Belfast have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
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
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
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.