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

British Airways is the most popular carrier 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 50m on average. Another popular route from California to Belfast is flying from San Francisco to Belfast Intl Airport, which will take roughly 14h. 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.

£154 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.

18:00 - 18:50

LAX

BHD

16h 50m1 stop

06:35 - 13:30

BHD

LAX

14h 55m1 stop

£452British Airways

Thu, 29 Jan - Thu, 5 Feb

17:30 - 14:50

SFO

BHD

13h 20m1 stop

06:35 - 15:00

BHD

SFO

16h 25m1 stop

£464British Airways

Tue, 13 Jan - Tue, 20 Jan

11:40 - 14:15

LAX

BHD

18h 35m2 stops

11:25 - 18:30

BHD

LAX

15h 05m1 stop

£464British Airways

Fri, 23 Jan - Tue, 3 Feb

19:25 - 18:50

LAX

BHD

15h 25m1 stop

10:40 - 20:25

BHD

LAX

17h 45m1 stop

£465American Airlines

Thu, 15 Jan - Thu, 22 Jan

20:40 - 20:15

SFO

BHD

15h 35m1 stop

06:35 - 15:00

BHD

SFO

16h 25m1 stop

£465British Airways

Tue, 13 Jan - Tue, 20 Jan

19:25 - 18:50

LAX

BHD

15h 25m1 stop

10:40 - 21:18

BHD

LAX

18h 38m2 stops

£473American Airlines

Thu, 15 Jan - Thu, 22 Jan

20:40 - 18:35

SFO

BHD

13h 55m1 stop

08:45 - 21:37

BHD

SFO

20h 52m2 stops

£490Multiple Airlines

Mon, 12 Jan - Tue, 27 Jan

05:55 - 16:50

OAK

BHD

26h 55m2 stops

17:20 - 16:14

BHD

OAK

30h 54m2 stops

£509Delta

Tue, 13 Jan - Mon, 26 Jan

11:40 - 16:50

SJC

BHD

21h 10m2 stops

17:20 - 16:20

BHD

SJC

31h 00m2 stops

£509Delta

Tue, 13 Jan - Mon, 26 Jan

06:00 - 16:05

SJC

BHD

26h 05m2 stops

06:30 - 21:29

BHD

SJC

22h 59m2 stops

£515Multiple Airlines

Mon, 19 Jan - Sun, 25 Jan

British Airways flights from California to Belfast

Our best British Airways deals on California to Belfast flight tickets

British Airways

23 Jan

LAX16:45Los Angeles

16h 30m

2 stops

BHD17:15Belfast City

3 Feb

BHD10:00Belfast City

13h 50m

1 stop

LAX15:50Los Angeles

£464

Find similar

British Airways

13 Jan

SFO20:40San Francisco

15h 35m

1 stop

BHD20:15Belfast City

20 Jan

BHD06:35Belfast City

16h 25m

1 stop

SFO15:00San Francisco

£465

Find similar

British Airways

23 Jan

LAX16:45Los Angeles

16h 30m

2 stops

BHD17:15Belfast City

3 Feb

BHD06:35Belfast City

22h 43m

2 stops

LAX21:18Los Angeles

£466

Find similar

American Airlines flights from California to Belfast

Our best American Airlines deals on California to Belfast flight tickets

American Airlines

15 Jan

LAX19:25Los Angeles

15h 25m

1 stop

BHD18:50Belfast City

22 Jan

BHD10:40Belfast City

17h 45m

1 stop

LAX20:25Los Angeles

£465

Find similar

American Airlines

15 Jan

LAX19:25Los Angeles

15h 25m

1 stop

BHD18:50Belfast City

22 Jan

BHD10:40Belfast City

18h 38m

2 stops

LAX21:18Los Angeles

£473

Find similar

American Airlines

8 Jan

LAX09:30Los Angeles

16h 50m

2 stops

BHD10:20Belfast City

16 Jan

BHD06:45Belfast City

16h 35m

1 stop

LAX15:20Los Angeles

£543

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Thu 29/1

18:00-18:50

1 stop16h 50m

Belfast City

Thu 5/2

06:35-13:30

1 stop14h 55m

£452

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 13/1

17:30-14:50

1 stop13h 20m

Belfast City

Tue 20/1

06:35-15:00

1 stop16h 25m

£464

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

11:40-14:15

2 stops18h 35m

Belfast City

Tue 3/2

11:25-18:30

1 stop15h 05m

£464

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Thu 15/1

19:25-18:50

1 stop15h 25m

Belfast City

Thu 22/1

10:40-20:25

1 stop17h 45m

£465

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 13/1

20:40-20:15

1 stop15h 35m

Belfast City

Tue 20/1

06:35-15:00

1 stop16h 25m

£465

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Thu 15/1

19:25-18:50

1 stop15h 25m

Belfast City

Thu 22/1

10:40-21:18

2 stops18h 38m

£473

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 12/1

20:40-18:35

1 stop13h 55m

Belfast City

Tue 27/1

08:45-21:37

2 stops20h 52m

£490

OaklandBelfast

OAK - BHD

OAKBHD

Oakland

Tue 13/1

05:55-16:50

2 stops26h 55m

Belfast City

Mon 26/1

17:20-16:14

2 stops30h 54m

£509

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Tue 13/1

11:40-16:50

2 stops21h 10m

Belfast City

Mon 26/1

17:20-16:20

2 stops31h 00m

£509

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Mon 19/1

06:00-16:05

2 stops26h 05m

Belfast City

Sun 25/1

06:30-21:29

2 stops22h 59m

£515

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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 £473, 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 £512.

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 £550. Flights to Belfast are more costly in the evening, with an average ticket price of £558. 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

Fastest flight time	13h 50m
Direct flights	None

The fastest flight from California to Belfast takes 13h 50m

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.