What is the cheapest airline that flies from California to Belfast?

Delta and American Airlines are the most popular carriers operating from California to Belfast

How long does it take to fly to Belfast?

Flight times from California to Belfast vary, but if you’re flying out of Los Angeles and flying into Belfast Intl Airport (one of the most popular routes), then the duration is 13h 40m on average. Another popular route from California to Belfast is flying from San Francisco to Belfast Intl Airport, which will take roughly 17h 10m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from California to Belfast?

Prices for flights from California to Belfast refresh daily.

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

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.

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

The travel and health documents you'll need for your trip to Belfast 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£485 Cheap Flights from California to Belfast in 2025/26

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Find the cheapest flights from California to Belfast

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

18:30 - 18:40SFO-BHD

17h 10m1 stop

06:35 - 13:50BHD-SFO

15h 15m1 stop

£485British Airways

Find Deal

Tue, 24 Mar - Tue, 31 Mar

13:45 - 16:50LAX-BHD

19h 05m1 stop

17:20 - 11:45BHD-LAX

26h 25m1 stop

£489Multiple Airlines

Find Deal

Fri, 23 Jan - Tue, 3 Feb

09:30 - 16:50LAX-BHD

23h 20m2 stops

17:20 - 11:45BHD-LAX

26h 25m1 stop

£493Delta

Find Deal

Fri, 23 Jan - Tue, 3 Feb

10:24 - 11:30SFO-BHD

18h 06m2 stops

06:35 - 18:42BHD-SFO

20h 07m2 stops

£499American Airlines

Find Deal

Tue, 24 Mar - Tue, 31 Mar

11:55 - 16:50LAX-BHD

20h 55m2 stops

17:20 - 17:28BHD-LAX

32h 08m2 stops

£500Delta

Find Deal

Fri, 23 Jan - Tue, 3 Feb

13:55 - 21:00SFO-BHD

23h 05m1 stop

06:30 - 11:50BHD-SFO

13h 20m1 stop

£520Virgin Atlantic

Find Deal

Wed, 3 Dec - Sun, 7 Dec

14:00 - 21:00SFO-BHD

23h 00m2 stops

06:30 - 11:50BHD-SFO

13h 20m1 stop

£523Virgin Atlantic

Find Deal

Wed, 3 Dec - Sun, 7 Dec

05:55 - 16:50OAK-BHD

26h 55m2 stops

17:20 - 16:11BHD-OAK

30h 51m2 stops

£570KLM

Find Deal

Thu, 13 Nov - Mon, 17 Nov

11:40 - 21:00SJC-BHD

25h 20m2 stops

17:20 - 16:05BHD-SJC

30h 45m2 stops

£570KLM

Find Deal

Wed, 12 Nov - Sun, 16 Nov

09:00 - 10:20SFO-BHD

17h 20m2 stops

09:10 - 20:30BHD-SFO

19h 20m2 stops

£662American Airlines

Find Deal

Sun, 7 Dec - Sun, 14 Dec

Virgin Atlantic flights from California to Belfast

Our best Virgin Atlantic deals on California to Belfast flight tickets

Virgin Atlantic

3 Dec

SFO13:55San Francisco

23h 05m

1 stop

BHD21:00Belfast City

7 Dec

BHD06:30Belfast City

13h 20m

1 stop

SFO11:50San Francisco

£520

Find similar

Virgin Atlantic

3 Dec

SFO14:00San Francisco

23h 00m

2 stops

BHD21:00Belfast City

7 Dec

BHD06:30Belfast City

13h 20m

1 stop

SFO11:50San Francisco

£523

Find similar

Virgin Atlantic

3 Dec

SFO13:55San Francisco

23h 05m

1 stop

BHD21:00Belfast City

7 Dec

BHD06:30Belfast City

22h 29m

2 stops

SFO20:59San Francisco

£527

Find similar

KLM flights from California to Belfast

Our best KLM deals on California to Belfast flight tickets

KLM

4 Nov

SFO13:55San Francisco

18h 55m

1 stop

BHD16:50Belfast City

13 Nov

BHD06:30Belfast City

13h 20m

1 stop

SFO11:50San Francisco

£497

Find similar

KLM

4 Nov

SFO13:55San Francisco

18h 55m

1 stop

BHD16:50Belfast City

13 Nov

BHD06:30Belfast City

22h 06m

2 stops

SFO20:36San Francisco

£505

Find similar

KLM

4 Nov

SJC11:35San Jose

21h 15m

2 stops

BHD16:50Belfast City

13 Nov

BHD06:30Belfast City

20h 36m

2 stops

SJC19:06San Jose

£508

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 24/3

18:30-18:40

1 stop17h 10m

Belfast City

Tue 31/3

06:35-13:50

1 stop15h 15m

£485

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

13:45-16:50

1 stop19h 05m

Belfast City

Tue 3/2

17:20-11:45

1 stop26h 25m

£489

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

09:30-16:50

2 stops23h 20m

Belfast City

Tue 3/2

17:20-11:45

1 stop26h 25m

£493

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 24/3

10:24-11:30

2 stops18h 06m

Belfast City

Tue 31/3

06:35-18:42

2 stops20h 07m

£499

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

11:55-16:50

2 stops20h 55m

Belfast City

Tue 3/2

17:20-17:28

2 stops32h 08m

£500

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

13:55-21:00

1 stop23h 05m

Belfast City

Sun 7/12

06:30-11:50

1 stop13h 20m

£520

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

14:00-21:00

2 stops23h 00m

Belfast City

Sun 7/12

06:30-11:50

1 stop13h 20m

£523

OaklandBelfast

OAK - BHD

OAKBHD

Oakland

Thu 13/11

05:55-16:50

2 stops26h 55m

Belfast City

Mon 17/11

17:20-16:11

2 stops30h 51m

£570

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 12/11

11:40-21:00

2 stops25h 20m

Belfast City

Sun 16/11

17:20-16:05

2 stops30h 45m

£570

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 7/12

09:00-10:20

2 stops17h 20m

Belfast City

Sun 14/12

09:10-20:30

2 stops19h 20m

£662

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from California to Belfast

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

Prices

Airlines

Other information

What is the cheapest month to fly to Belfast?

The cheapest month to fly to Belfast from California is in October. Flight prices, which tend to average around £480, are often lower during this time because this is during the off-season. If you aren’t able to travel to Belfast during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £520.

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

The cheapest time of day to fly to Belfast is in the afternoon when flights can be purchased for as low as £559. Flights to Belfast are more costly in the evening, with an average ticket price of £567. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap California to Belfast flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from California to Belfast?
Prices for flights from California to Belfast refresh daily.
How old do you have to be to fly from California to Belfast?
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.
What documentation or ID do you need to fly to Belfast?
The travel and health documents you'll need for your trip to Belfast 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

It is quick and easy to find California to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

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

Flights from California to Belfast with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for California to Belfast flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from California to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.