How many operators does momondo search for flights from Belfast Intl Airport to California?

There are 2 operators available for flights from Belfast Intl Airport to California as of December 2025.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to California.

What documentation or ID do you need to fly to California?

The necessary travel and health documents for your California trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£417 Cheap Flights from Belfast Intl Airport to California in 2025/26

1 adult

0 bags

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Find the cheapest flights from Belfast Intl Airport to California

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

14:45 - 14:35

BFS

SFO

31h 50m2 stops

16:40 - 22:00

SFO

BFS

21h 20m2 stops

£533Multiple Airlines

Thu, 29 Jan - Thu, 5 Feb

16:25 - 17:00

BFS

LAX

32h 35m2 stops

19:30 - 22:10

LAX

BFS

18h 40m2 stops

£545Multiple Airlines

Wed, 28 Jan - Wed, 4 Feb

07:00 - 16:05

BFS

SFO

41h 05m3 stops

10:15 - 22:05

SFO

BFS

27h 50m3 stops

£545Multiple Airlines

Thu, 29 Jan - Thu, 5 Feb

07:00 - 16:05

BFS

SFO

41h 05m3 stops

13:00 - 22:05

SFO

BFS

25h 05m2 stops

£597Multiple Airlines

Thu, 29 Jan - Thu, 5 Feb

07:15 - 14:30

BFS

SFO

39h 15m3 stops

07:30 - 18:15

SFO

BFS

26h 45m3 stops

£612Multiple Airlines

Tue, 27 Jan - Tue, 3 Feb

07:15 - 14:30

BFS

SFO

39h 15m3 stops

13:00 - 18:15

SFO

BFS

21h 15m2 stops

£612Multiple Airlines

Tue, 27 Jan - Tue, 3 Feb

20:55 - 20:10

BFS

SFO

31h 15m2 stops

13:00 - 18:15

SFO

BFS

21h 15m2 stops

£638Multiple Airlines

Tue, 27 Jan - Tue, 3 Feb

06:30 - 12:33

BFS

LAX

38h 03m3 stops

15:00 - 21:55

LAX

BFS

22h 55m3 stops

£644Multiple Airlines

Thu, 15 Jan - Sun, 18 Jan

06:30 - 12:33

BFS

LAX

38h 03m3 stops

11:30 - 22:50

LAX

BFS

27h 20m3 stops

£661Multiple Airlines

Wed, 28 Jan - Wed, 4 Feb

14:15 - 16:35

BFS

LAX

34h 20m2 stops

11:30 - 22:50

LAX

BFS

27h 20m3 stops

£671Multiple Airlines

Wed, 28 Jan - Wed, 4 Feb

momondo Fare Finder

Use the filters below to find and compare flights from Belfast Intl Airport to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 29/1

14:45-14:35

2 stops31h 50m

San Francisco

Thu 5/2

16:40-22:00

2 stops21h 20m

£533

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Wed 28/1

16:25-17:00

2 stops32h 35m

Los Angeles

Wed 4/2

19:30-22:10

2 stops18h 40m

£545

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 29/1

07:00-16:05

3 stops41h 05m

San Francisco

Thu 5/2

10:15-22:05

3 stops27h 50m

£545

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 29/1

07:00-16:05

3 stops41h 05m

San Francisco

Thu 5/2

13:00-22:05

2 stops25h 05m

£597

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 27/1

07:15-14:30

3 stops39h 15m

San Francisco

Tue 3/2

07:30-18:15

3 stops26h 45m

£612

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 27/1

07:15-14:30

3 stops39h 15m

San Francisco

Tue 3/2

13:00-18:15

2 stops21h 15m

£612

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 27/1

20:55-20:10

2 stops31h 15m

San Francisco

Tue 3/2

13:00-18:15

2 stops21h 15m

£638

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Thu 15/1

06:30-12:33

3 stops38h 03m

Los Angeles

Sun 18/1

15:00-21:55

3 stops22h 55m

£644

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Wed 28/1

06:30-12:33

3 stops38h 03m

Los Angeles

Wed 4/2

11:30-22:50

3 stops27h 20m

£661

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Wed 28/1

14:15-16:35

2 stops34h 20m

Los Angeles

Wed 4/2

11:30-22:50

3 stops27h 20m

£671

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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

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 day to depart on your flight to California?

The cheapest day to depart on your flight to California is on a Saturday when prices can be found for as low as £549. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Belfast Intl Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £807.

What is the cheapest time of day to depart on your flight to California?

The cheapest time of day to fly to California is in the afternoon when flights can be purchased for as low as £531. In contrast, the most expensive time of day to depart to California is in the morning when prices are around £619.

Cheap Belfast Intl Airport to California flight deals and tips

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

Fastest flight time	15h 15m
Direct flights	None

The fastest flight from Belfast Intl Airport to California takes 15h 15m

There are no direct flights from Belfast Intl Airport to California. There are no popular flight routes from Belfast Intl Airport to California.

Search flight deals

When did momondo last update prices for flights from Belfast Intl Airport to California?
Prices for flights from Belfast Intl Airport to California refresh daily.
How many operators does momondo search for flights from Belfast Intl Airport to California?
There are 2 operators available for flights from Belfast Intl Airport to California as of December 2025.
How old do you have to be to fly from Belfast Intl Airport to California?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to California.
What documentation or ID do you need to fly to California?
The necessary travel and health documents for your California trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Belfast Intl Airport to California

Compare and see reviews for airlines that fly from Belfast Intl Airport to California with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £398	Free Cancellation	Rating 6.7 7,580 reviews		Search British Airways flights
American Airlines	PriceFrom £474	Free Cancellation	Rating 7.2 11,047 reviews		Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Belfast to California. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to California from Belfast which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Belfast to California 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 Belfast to California right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to California from Belfast. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.