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Cheap flights from California to Belfast from £178

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 17/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from California to Belfast

Cheap return flights

Logo
16:30 - 07:40LAX-BFS
31h 10m1 stop
Logo
20:55 - 14:10BFS-LAX
25h 15m1 stop
£410
Find Deal
Sun, 17 Aug - Tue, 2 Sep
Logo
16:30 - 07:40LAX-BFS
31h 10m1 stop
Logo
23:10 - 14:00BFS-LAX
46h 50m2 stops
£463
Find Deal
Sun, 17 Aug - Tue, 2 Sep
Logo
16:30 - 23:00LAX-BFS
22h 30m2 stops
Logo
23:30 - 13:40BFS-LAX
22h 10m1 stop
£486
Find Deal
Sun, 24 Aug - Sun, 31 Aug
Logo
16:30 - 07:40LAX-BFS
31h 10m1 stop
Logo
09:55 - 13:40BFS-LAX
35h 45m1 stop
£493
Find Deal
Sun, 24 Aug - Sun, 31 Aug
Logo
16:05 - 22:25SFO-BFS
22h 20m1 stop
Logo
07:00 - 19:30BFS-SFO
20h 30m1 stop
£495
Find Deal
Sun, 21 Sep - Mon, 6 Oct
Logo
11:55 - 22:25SFO-BFS
26h 30m2 stops
Logo
07:00 - 19:30BFS-SFO
20h 30m1 stop
£537
Find Deal
Sun, 21 Sep - Mon, 6 Oct
Logo
15:40 - 22:25SFO-BFS
22h 45m2 stops
Logo
06:45 - 19:30BFS-SFO
20h 45m1 stop
£541
Find Deal
Sun, 21 Sep - Mon, 6 Oct
Logo
11:55 - 22:25SFO-BFS
26h 30m2 stops
Logo
07:00 - 23:33BFS-SFO
24h 33m2 stops
£558
Find Deal
Sun, 21 Sep - Mon, 6 Oct
Logo
21:20 - 22:25SFO-BFS
17h 05m1 stop
Logo
06:10 - 19:30BFS-SFO
21h 20m1 stop
£566
Find Deal
Sun, 21 Sep - Mon, 6 Oct
Logo
16:20 - 20:25SFO-BFS
20h 05m2 stops
Logo
06:20 - 13:35BFS-SFO
39h 15m3 stops
£629
Find Deal
Mon, 15 Sep - Mon, 22 Sep

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 1 August 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

Sun 17/8

16:30-07:40

1 stop31h 10m

Belfast Intl

Tue 2/9

20:55-14:10

1 stop25h 15m

£410

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Sun 17/8

16:30-07:40

1 stop31h 10m

Belfast Intl

Tue 2/9

23:10-14:00

2 stops46h 50m

£463

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Sun 24/8

16:30-23:00

2 stops22h 30m

Belfast Intl

Sun 31/8

23:30-13:40

1 stop22h 10m

£486

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Sun 24/8

16:30-07:40

1 stop31h 10m

Belfast Intl

Sun 31/8

09:55-13:40

1 stop35h 45m

£493

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 21/9

16:05-22:25

1 stop22h 20m

Belfast Intl

Mon 6/10

07:00-19:30

1 stop20h 30m

£495

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 21/9

11:55-22:25

2 stops26h 30m

Belfast Intl

Mon 6/10

07:00-19:30

1 stop20h 30m

£536

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 21/9

15:40-22:25

2 stops22h 45m

Belfast Intl

Mon 6/10

06:45-19:30

1 stop20h 45m

£541

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 21/9

11:55-22:25

2 stops26h 30m

Belfast Intl

Mon 6/10

07:00-23:33

2 stops24h 33m

£558

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 21/9

21:20-22:25

1 stop17h 05m

Belfast Intl

Mon 6/10

06:10-19:30

1 stop21h 20m

£566

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Mon 15/9

16:20-20:25

2 stops20h 05m

Belfast Intl

Mon 22/9

06:20-13:35

3 stops39h 15m

£629

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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 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 £556. In the evening is when there is more demand to fly to Belfast Intl Airport, so prices are often more expensive at around £564 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

Best price found

£178

Fastest flight time

15h 20m

Direct flights

None
The best one-way flight to Belfast Intl Airport from California in the past 72 hours is £178. The best return flight deal from California to Belfast Intl Airport found on momondo in the last 72 hours is £410.
The fastest flight from California to Belfast Intl Airport takes 15h 20m
There are no direct flights from California to Belfast Intl Airport. Popular non-direct routes for this connection are Oakland Airport - Belfast Intl Airport, Los Angeles Airport - Belfast Intl Airport and San Francisco Airport - 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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