How long is the flight from California to Belfast?

For as low as £470, British Airways can have you in Belfast from California in 17h 40m. The distance from California to Belfast is about 5038 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Belfast ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Belfast, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular routes from California to Belfast?

While some choose either Los Angeles - Belfast City or San Francisco - Belfast Intl, Los Angeles - Belfast Intl is the most popular route from California to Belfast.

What is the cheapest month to fly from California to Belfast?

The best pricing can be found in the month of September. Prices to Belfast from California average £663. You can even find prices in September for less than £663, as users have found deals to Belfast from as low as £505. The month of June appears to be one of the more expensive times to travel to Belfast from California. Flying in the targeted month can save you up to 49%.

Can I find deals for flights from California to Belfast that include hotel bookings?

Yes. In addition to deals on California to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from California to Belfast?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Belfast.

Can I find deals for business class flights from California to Belfast?

Yes. Cheapflights offers flight deals from California to Belfast by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£289+ Cheap Flights from California to Belfast

Cheap flight deals from California to Belfast

Round-trip from	£409
One-way from	£289
Popular in	June
Cheapest in	September
Average price	£573

27/9-2/10
2 total stops
59h 00m total
California to Belfast

Search Deals

British Airways
13/9
2 total stops
29h 00m total
California to Belfast

Search Deals

Highest demand for flights based on searches. 21% potential increase in price (£136 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from California to Belfast

Cheapest flights from California to Belfast
Explore the most affordable flight options available from California to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Sat 27/915:05LAX - BHD

1 stop33h 05mMultiple Airlines

Thu 2/1020:15BHD - LAX

1 stop25h 55mMultiple Airlines

Deal found 27/8£409

Wed 17/916:30LAX - BFS

1 stop31h 20mMultiple Airlines

Wed 15/1006:10BFS - LAX

1 stop16h 00mMultiple Airlines

Deal found 27/8£454

Tue 14/1015:50SFO - BHD

2 stops17h 40mBritish Airways

Wed 29/1006:35BHD - SFO

1 stop16h 25mBritish Airways

Deal found 28/8£470

Tue 14/1011:15SFO - BHD

2 stops17h 45mAmerican Airlines

Wed 29/1009:15BHD - SFO

2 stops19h 28mAmerican Airlines

Deal found 28/8£477

Wed 17/906:00LAX - BFS

3 stops28h 35mMultiple Airlines

Wed 22/1007:15BFS - LAX

3 stops40h 15mMultiple Airlines

Deal found 27/8£483

Fri 26/916:30LAX - BHD

1 stop19h 55mMultiple Airlines

Fri 3/1007:00BHD - LAX

1 stop15h 10mMultiple Airlines

Deal found 27/8£486

Wed 15/1017:05LAX - BHD

1 stop14h 30mBritish Airways

Thu 23/1006:35BHD - LAX

1 stop19h 00mBritish Airways

Deal found 28/8£487

Wed 3/1217:30SFO - BHD

1 stop15h 05mBritish Airways

Sun 7/1210:40BHD - SFO

1 stop16h 00mBritish Airways

Deal found 27/8£489

Wed 15/1011:40LAX - BHD

2 stops16h 15mAmerican Airlines

Thu 23/1012:40BHD - LAX

1 stop15h 35mAmerican Airlines

Deal found 28/8£490

Sat 27/915:05LAX - BFS

1 stop22h 25mMultiple Airlines

Thu 2/1021:00BFS - LAX

1 stop25h 10mMultiple Airlines

Deal found 27/8£500

Fri 26/916:30LAX - BFS

1 stop21h 50mMultiple Airlines

Fri 3/1006:05BFS - LAX

1 stop16h 05mMultiple Airlines

Deal found 27/8£513

Mon 13/1008:05LAX - BFS

3 stops30h 55mMultiple Airlines

Mon 20/1009:25BFS - LAX

3 stops38h 05mMultiple Airlines

Deal found 29/8£516

Best flights from California to Belfast
Discover carefully curated flight deals from California to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2025.

Sat 27/915:05LAX - BHD

1 stop33h 05mMultiple Airlines

Thu 2/1020:15BHD - LAX

1 stop25h 55mMultiple Airlines

Deal found 27/8£409

Tue 14/1015:50SFO - BHD

2 stops17h 40mBritish Airways

Wed 29/1006:35BHD - SFO

1 stop16h 25mBritish Airways

Deal found 28/8£470

Tue 14/1011:15SFO - BHD

2 stops17h 45mAmerican Airlines

Wed 29/1009:15BHD - SFO

2 stops19h 28mAmerican Airlines

Deal found 28/8£477

Tue 14/1013:45SFO - BHD

1 stop23h 30mKLM

Wed 29/1006:30BHD - SFO

1 stop13h 20mKLM

Deal found 28/8£523

Wed 3/1213:55SFO - BHD

1 stop23h 05mVirgin Atlantic

Sun 7/1217:20BHD - SFO

1 stop26h 30mVirgin Atlantic

Deal found 26/8£546

Wed 3/1211:50SFO - BHD

2 stops21h 00mDelta

Sun 7/1206:30BHD - SFO

2 stops19h 26mDelta

Deal found 28/8£589

Wed 17/916:30LAX - BFS

1 stop31h 20mMultiple Airlines

Wed 15/1006:10BFS - LAX

1 stop16h 00mMultiple Airlines

Deal found 27/8£454

Wed 15/1013:25LAX - BHD

1 stop16h 05mAmerican Airlines

Thu 23/1006:35BHD - LAX

1 stop21h 40mAmerican Airlines

Deal found 27/8£487

Wed 15/1017:05LAX - BHD

1 stop14h 30mBritish Airways

Thu 23/1006:35BHD - LAX

1 stop19h 00mBritish Airways

Deal found 28/8£487

Wed 17/916:30LAX - BFS

1 stop31h 20mMultiple Airlines

Wed 22/1006:10BFS - LAX

1 stop16h 00mMultiple Airlines

Deal found 27/8£454

Wed 3/1217:30SFO - BHD

1 stop15h 05mBritish Airways

Sun 7/1210:40BHD - SFO

1 stop16h 00mBritish Airways

Deal found 27/8£489

Wed 3/1211:50SFO - BHD

2 stops21h 00mKLM

Sun 7/1206:30BHD - SFO

1 stop13h 20mKLM

Deal found 27/8£587

Last-minute flights from California to Belfast
Discover last-minute flight deals from California to Belfast. Data last updated 29 August 2025 and is based on user searches.

Sat 13/920:30SFO - BFS

1 stop31h 40mMultiple Airlines

Sun 28/923:30BFS - SFO

2 stops26h 37mMultiple Airlines

Deal found 28/8£595

Sat 13/913:45SFO - BHD

1 stop19h 10mMultiple Airlines

Sun 28/917:25BHD - SFO

1 stop26h 20mMultiple Airlines

Deal found 28/8£634

Wed 17/916:30LAX - BFS

1 stop31h 20mMultiple Airlines

Wed 22/1006:10BFS - LAX

1 stop16h 00mMultiple Airlines

Deal found 27/8£454

Wed 17/907:00LAX - BFS

2 stops31h 55mMultiple Airlines

Wed 15/1009:35BFS - LAX

1 stop40h 30mMultiple Airlines

Deal found 27/8£528

Wed 17/906:00LAX - BHD

3 stops31h 10mMultiple Airlines

Wed 15/1007:05BHD - LAX

1 stop15h 05mMultiple Airlines

Deal found 27/8£579

Wed 17/906:00LAX - BHD

3 stops31h 10mMultiple Airlines

Wed 22/1007:05BHD - LAX

1 stop15h 05mMultiple Airlines

Deal found 27/8£590

Wed 17/911:58LAX - BHD

2 stops19h 37mBritish Airways

Wed 22/1011:30BHD - LAX

2 stops19h 29mBritish Airways

Deal found 28/8£628

Fri 26/916:30LAX - BHD

1 stop19h 55mMultiple Airlines

Fri 3/1007:00BHD - LAX

1 stop15h 10mMultiple Airlines

Deal found 27/8£486

Fri 26/916:30LAX - BFS

1 stop21h 50mMultiple Airlines

Fri 3/1006:05BFS - LAX

1 stop16h 05mMultiple Airlines

Deal found 27/8£513

Fri 26/917:00LAX - BHD

2 stops17h 15mAmerican Airlines

Fri 3/1009:30BHD - LAX

1 stop18h 45mAmerican Airlines

Deal found 27/8£528

Sat 27/915:05LAX - BHD

1 stop33h 05mMultiple Airlines

Thu 2/1020:15BHD - LAX

1 stop25h 55mMultiple Airlines

Deal found 27/8£409

Sat 27/915:05LAX - BFS

1 stop22h 25mMultiple Airlines

Thu 2/1021:00BFS - LAX

1 stop25h 10mMultiple Airlines

Deal found 27/8£500

One-way flights from California to Belfast
Search for one-way flight options from California to Belfast. Find affordable one-way fares based on user searches. Data last updated 29 August 2025.

Sat 13/922:30SFO - BHD

2 stops29h 00mBritish Airways

Deal found 28/8£289

Sat 13/913:45SFO - BHD

1 stop19h 10mAir France

Deal found 28/8£343

Sat 13/922:59SFO - BFS

2 stops38h 31mMultiple Airlines

Deal found 28/8£363

Sat 13/908:30SFO - BHD

3 stops28h 25mMultiple Airlines

Deal found 28/8£442

Tue 16/909:39OAK - BHD

2 stops19h 21mBritish Airways

Deal found 26/8£504

Sat 13/919:07OAK - BHD

2 stops39h 38mMultiple Airlines

Deal found 28/8£524

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Sat 27/9

15:05-08:10

1 stop33h 05m

Belfast City

Thu 2/10

20:15-14:10

1 stop25h 55m

£409

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Wed 17/9

16:30-07:50

1 stop31h 20m

Belfast Intl

Wed 15/10

06:10-14:10

1 stop16h 00m

£454

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Wed 17/9

16:30-07:50

1 stop31h 20m

Belfast Intl

Wed 22/10

06:10-14:10

1 stop16h 00m

£454

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 14/10

15:50-17:30

2 stops17h 40m

Belfast City

Wed 29/10

06:35-16:00

1 stop16h 25m

£470

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 14/10

11:15-13:00

2 stops17h 45m

Belfast City

Wed 29/10

09:15-21:43

2 stops19h 28m

£477

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 26/9

16:30-20:25

1 stop19h 55m

Belfast City

Fri 3/10

07:00-14:10

1 stop15h 10m

£486

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 15/10

13:25-13:30

1 stop16h 05m

Belfast City

Thu 23/10

06:35-20:15

1 stop21h 40m

£487

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 15/10

17:05-15:35

1 stop14h 30m

Belfast City

Thu 23/10

06:35-17:35

1 stop19h 00m

£487

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

17:30-16:35

1 stop15h 05m

Belfast City

Sun 7/12

10:40-18:40

1 stop16h 00m

£489

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Sat 27/9

15:05-21:30

1 stop22h 25m

Belfast Intl

Thu 2/10

21:00-14:10

1 stop25h 10m

£500

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 36 results

Best time to book a flight from California to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from California with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from California to Belfast

What is the cheapest month to book a flight from California to Belfast?

Currently, January is the cheapest month in which you can book a flight from California to Belfast (average of £67). Flying from California to Belfast in July is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CA to BFS?

When flying from California to Belfast, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

How long is the flight from California to Belfast?
For as low as £470, British Airways can have you in Belfast from California in 17h 40m. The distance from California to Belfast is about 5038 mi. This flight may include one or multiple stops.
What are the most popular routes from California to Belfast?
While some choose either Los Angeles - Belfast City or San Francisco - Belfast Intl, Los Angeles - Belfast Intl is the most popular route from California to Belfast.
Can I find deals for flights from California to Belfast that include hotel bookings?
Yes. In addition to deals on California to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from California to Belfast?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Belfast.
Can I find deals for business class flights from California to Belfast?
Yes. Cheapflights offers flight deals from California to Belfast by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from California to Belfast?
Currently, January is the cheapest month in which you can book a flight from California to Belfast (average of £67). Flying from California to Belfast in July is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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How does Cheapflights help users find flights from California to Belfast?

Deals for California to Belfast flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from California to Belfast?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from California to Belfast.

Can Cheapflights find flights from California to Belfast with no change fees?

Certainly. Search results for flights to Belfast from California shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from California to Belfast become cheaper?

Of course! You can now track prices for flights from California to Belfast and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from California to Belfast from £289

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from California to Belfast

Keep the following information in mind while searching for California to Belfast flight deals. Data was last updated 29 August 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from California to Belfast

Cheapest flights from California to BelfastExplore the most affordable flight options available from California to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Explore the most affordable flight options available from California to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Cheapflights Fare Finder

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

Best time to book a flight from California to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from California with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from California to Belfast

What is the cheapest month to book a flight from California to Belfast?

What is the cheapest time of day to fly from CA to BFS?

Find hourly flight availability from California to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 August 2025.

Related info for your journey

Find useful and relevant information for your journey from California to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from California to Belfast?

What are the most popular routes from California to Belfast?

Can I find deals for flights from California to Belfast that include hotel bookings?

How can I find direct flights from California to Belfast?

Can I find deals for business class flights from California to Belfast?

What is the cheapest month to book a flight from California to Belfast?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for California to Belfast

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from California to Belfast?

Why should you use Cheapflights to find cheap flight tickets from California to Belfast?

Can Cheapflights find flights from California to Belfast with no change fees?

Can Cheapflights notify me if prices for flights from California to Belfast become cheaper?

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Cheapest flights from California to Belfast
Explore the most affordable flight options available from California to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.