Latest deals
Insights
FAQs
Price Alerts

Cheap flights from California to Belfast from £620

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from California to Belfast departing on 25/11. 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
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from California to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
08:25 - 21:40SFO-BFS
29h 15m2 stops
Multiple Airlines Logo
17:30 - 12:40BFS-SFO
27h 10m2 stops
£620Multiple Airlines
Find Deal
mar., 25 nov. - mar., 2 déc.
Multiple Airlines Logo
20:15 - 20:15LAX-BFS
16h 00m2 stops
Multiple Airlines Logo
07:10 - 18:30BFS-LAX
19h 20m2 stops
£644Multiple Airlines
Find Deal
dim., 14 déc. - dim., 21 déc.
Multiple Airlines Logo
12:10 - 08:20SFO-BFS
36h 10m2 stops
Multiple Airlines Logo
17:30 - 20:10BFS-SFO
34h 40m1 stop
£682Multiple Airlines
Find Deal
mar., 25 nov. - mar., 2 déc.
Multiple Airlines Logo
10:15 - 21:40SFO-BFS
27h 25m3 stops
Multiple Airlines Logo
20:55 - 20:10BFS-SFO
31h 15m2 stops
£688Multiple Airlines
Find Deal
mar., 25 nov. - mar., 2 déc.
Multiple Airlines Logo
12:10 - 21:40SFO-BFS
25h 30m1 stop
Multiple Airlines Logo
17:30 - 20:10BFS-SFO
34h 40m1 stop
£719Multiple Airlines
Find Deal
mar., 25 nov. - mar., 2 déc.
Multiple Airlines Logo
10:15 - 21:40SFO-BFS
27h 25m3 stops
Multiple Airlines Logo
09:25 - 20:10BFS-SFO
42h 45m3 stops
£732Multiple Airlines
Find Deal
mar., 25 nov. - mar., 2 déc.
Multiple Airlines Logo
21:01 - 10:05LAX-BFS
29h 04m2 stops
Multiple Airlines Logo
15:45 - 14:00BFS-LAX
30h 15m1 stop
£925Multiple Airlines
Find Deal
dim., 14 déc. - dim., 21 déc.
Multiple Airlines Logo
08:12 - 20:10LAX-BFS
27h 58m3 stops
Multiple Airlines Logo
07:25 - 22:29BFS-LAX
47h 04m3 stops
£977Multiple Airlines
Find Deal
dim., 14 déc. - dim., 21 déc.
Multiple Airlines Logo
08:12 - 20:10LAX-BFS
27h 58m3 stops
Multiple Airlines Logo
14:45 - 18:30BFS-LAX
35h 45m2 stops
£999Multiple Airlines
Find Deal
dim., 14 déc. - dim., 21 déc.
Multiple Airlines Logo
17:20 - 22:35SFO-BFS
21h 15m2 stops
Multiple Airlines Logo
06:30 - 15:35BFS-SFO
17h 05m2 stops
£1,110Multiple Airlines
Find Deal
mar., 16 déc. - mar., 30 déc.

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 31 octobre 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

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

mar. 25/11

08:25-21:40

2 stops29h 15m

Belfast Intl

mar. 2/12

17:30-12:40

2 stops27h 10m

£620

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

dim. 14/12

20:15-20:15

2 stops16h 00m

Belfast Intl

dim. 21/12

07:10-18:30

2 stops19h 20m

£644

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

mar. 25/11

12:10-08:20

2 stops36h 10m

Belfast Intl

mar. 2/12

17:30-20:10

1 stop34h 40m

£682

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

mar. 25/11

10:15-21:40

3 stops27h 25m

Belfast Intl

mar. 2/12

20:55-20:10

2 stops31h 15m

£688

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

mar. 25/11

12:10-21:40

1 stop25h 30m

Belfast Intl

mar. 2/12

17:30-20:10

1 stop34h 40m

£719

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

mar. 25/11

10:15-21:40

3 stops27h 25m

Belfast Intl

mar. 2/12

09:25-20:10

3 stops42h 45m

£732

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

dim. 14/12

21:01-10:05

2 stops29h 04m

Belfast Intl

dim. 21/12

15:45-14:00

1 stop30h 15m

£925

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

dim. 14/12

08:12-20:10

3 stops27h 58m

Belfast Intl

dim. 21/12

07:25-22:29

3 stops47h 04m

£977

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

dim. 14/12

08:12-20:10

3 stops27h 58m

Belfast Intl

dim. 21/12

14:45-18:30

2 stops35h 45m

£999

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

mar. 16/12

17:20-22:35

2 stops21h 15m

Belfast Intl

mar. 30/12

06:30-15:35

2 stops17h 05m

£1,110

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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 £480. 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 £520.

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 £559. In the evening is when there is more demand to fly to Belfast Intl Airport, so prices are often more expensive at around £567 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

Direct flights

None
There are no direct flights from California to Belfast Intl Airport. There are no popular flight routes from California to Belfast Intl Airport.
Search flight deals

  • 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
dim. 30/11
dim. 7/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Belfast