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Cheap flights from California to Belfast from £265

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Belfast departing on 7/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from California to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:15 - 22:00
LAX
-
BFS
17h 45m2 stops
Multiple Airlines Logo
08:05 - 18:30
BFS
-
LAX
18h 25m2 stops
£600Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
16:30 - 09:55
LAX
-
BFS
33h 25m1 stop
Multiple Airlines Logo
06:10 - 14:10
BFS
-
LAX
16h 00m1 stop
£615Multiple Airlines
Thu, 11 Jun - Wed, 24 Jun
Multiple Airlines Logo
16:30 - 16:15
SFO
-
BFS
15h 45m1 stop
Multiple Airlines Logo
05:45 - 20:10
BFS
-
SFO
46h 25m2 stops
£675Multiple Airlines
Mon, 12 Jan - Tue, 27 Jan
Multiple Airlines Logo
07:45 - 22:45
LAX
-
BFS
31h 00m3 stops
Multiple Airlines Logo
07:50 - 22:03
BFS
-
LAX
22h 13m2 stops
£689Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
07:45 - 22:45
LAX
-
BFS
31h 00m3 stops
Multiple Airlines Logo
07:50 - 11:00
BFS
-
LAX
35h 10m3 stops
£707Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
07:30 - 22:45
SFO
-
BFS
31h 15m3 stops
Multiple Airlines Logo
07:00 - 14:35
BFS
-
SFO
39h 35m3 stops
£750Multiple Airlines
Tue, 26 May - Tue, 2 Jun
Multiple Airlines Logo
16:30 - 21:00
LAX
-
BFS
20h 30m1 stop
Multiple Airlines Logo
22:45 - 14:10
BFS
-
LAX
23h 25m2 stops
£755Multiple Airlines
Thu, 11 Jun - Wed, 24 Jun
Multiple Airlines Logo
16:35 - 20:15
SFO
-
BFS
19h 40m2 stops
Multiple Airlines Logo
20:55 - 16:30
BFS
-
SFO
27h 35m2 stops
£776Multiple Airlines
Mon, 12 Jan - Tue, 27 Jan
Multiple Airlines Logo
07:30 - 19:15
SFO
-
BFS
27h 45m3 stops
Multiple Airlines Logo
09:15 - 16:55
BFS
-
SFO
39h 40m3 stops
£778Multiple Airlines
Wed, 10 Jun - Mon, 15 Jun
Multiple Airlines Logo
07:30 - 22:45
SFO
-
BFS
31h 15m3 stops
Multiple Airlines Logo
20:10 - 16:10
BFS
-
SFO
28h 00m2 stops
£779Multiple Airlines
Tue, 26 May - Tue, 2 Jun

momondo Fare Finder

 
Customise your flight search to find flights from California to Belfast Intl Airport 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, momondo users made 279,928 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from California to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Fri 30/1

20:15-22:00

2 stops17h 45m

Belfast Intl

Fri 6/2

08:05-18:30

2 stops18h 25m

£600

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Thu 11/6

16:30-09:55

1 stop33h 25m

Belfast Intl

Wed 24/6

06:10-14:10

1 stop16h 00m

£615

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Mon 12/1

16:30-16:15

1 stop15h 45m

Belfast Intl

Tue 27/1

05:45-20:10

2 stops46h 25m

£675

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Fri 30/1

07:45-22:45

3 stops31h 00m

Belfast Intl

Fri 6/2

07:50-22:03

2 stops22h 13m

£689

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Fri 30/1

07:45-22:45

3 stops31h 00m

Belfast Intl

Fri 6/2

07:50-11:00

3 stops35h 10m

£707

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 26/5

07:30-22:45

3 stops31h 15m

Belfast Intl

Tue 2/6

07:00-14:35

3 stops39h 35m

£750

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Thu 11/6

16:30-21:00

1 stop20h 30m

Belfast Intl

Wed 24/6

22:45-14:10

2 stops23h 25m

£755

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Mon 12/1

16:35-20:15

2 stops19h 40m

Belfast Intl

Tue 27/1

20:55-16:30

2 stops27h 35m

£776

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Wed 10/6

07:30-19:15

3 stops27h 45m

Belfast Intl

Mon 15/6

09:15-16:55

3 stops39h 40m

£778

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 26/5

07:30-22:45

3 stops31h 15m

Belfast Intl

Tue 2/6

20:10-16:10

2 stops28h 00m

£779

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
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See travel insights to Belfast from

How to get the cheapest flight ticket from California to Belfast Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Belfast Intl Airport?

The month of October is, on average, the cheapest month to fly to Belfast Intl Airport from California, with most prices found around £473. If you’re not able to fly to Belfast Intl Airport in October, then February is your next best option. Flight prices from California to Belfast Intl Airport during February average around £512.

What is the cheapest time of day to depart on your flight to Belfast Intl Airport?

The cheapest time of day to fly to Belfast Intl Airport is in the afternoon when flights can be purchased for as low as £550. In the evening is when there is more demand to fly to Belfast Intl Airport, so prices are often more expensive at around £558 per ticket.

Cheap California to Belfast Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to Belfast Intl Airport

Fastest flight time

13h 50m

Direct flights

None
The fastest flight from California to Belfast Intl Airport takes 13h 50m
There are no direct flights from California to Belfast Intl Airport. There are no popular flight routes from California to Belfast Intl Airport.
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  • When did momondo last update prices for flights from California to Belfast Intl Airport?

    Prices for flights from California to Belfast Intl Airport refresh daily.

  • How old do you have to be to fly from California to Belfast Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Belfast Intl Airport.

  • What documentation or ID do you need to fly to Belfast Intl Airport?

    The travel and health documents you'll need for your trip to Belfast Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Ballymena
Newry
Armagh
Cookstown
Dungannon
Portadown

Why use momondo?

Why should I use momondo to find a flight deal from California to Belfast?

Finding the right flight to Belfast from California is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Belfast quick and easy, saving you time and money.

Can I find flights from California to Belfast with flexible booking policies on momondo?

All flight searches from California to Belfast on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from California to Belfast?

Once all potential California to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from California to Belfast right now. Can momondo alert me if prices change?

Price alerts on flights to Belfast from California are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Belfast Intl Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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