How long is the flight from California to Belfast?

For as low as £428, British Airways can have you in Belfast from California in 13h 40m. The distance from California to Belfast is about 5128 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 Santa Ana J. Wayne/Orange Cnty - Belfast City, 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.

£214+ Cheap Flights from California to Belfast

Cheap flight deals from California to Belfast

Round-trip from	£425
One-way from	£214
Popular in	June
Cheapest in	November
Average price	£677

Finnair
15/3-26/3
2 total stops
31h 45m total
California to Belfast

Search Deals

10/11
3 total stops
55h 15m total
California to Belfast

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£115 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 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 17 September 2025.

Wed 15/1013:25LAX - BHD

1 stop14h 30mAmerican Airlines

Thu 23/1006:35BHD - LAX

1 stop21h 40mAmerican Airlines

Deal found 15/9£425

Tue 2/1216:47ONT - BHD

2 stops15h 58mBritish Airways

Tue 9/1206:35BHD - ONT

2 stops23h 53mBritish Airways

Deal found 16/9£438

Tue 2/1200:55LAX - BHD

2 stops25h 20mBritish Airways

Wed 10/1212:25BHD - LAX

1 stop14h 05mBritish Airways

Deal found 16/9£451

Thu 16/1021:30LAX - BHD

1 stop13h 50mAmerican Airlines

Thu 23/1006:35BHD - LAX

1 stop21h 40mAmerican Airlines

Deal found 15/9£463

Wed 24/913:45SFO - BHD

1 stop23h 30mDelta

Mon 6/1017:25BHD - SFO

1 stop26h 20mDelta

Deal found 16/9£463

Mon 3/1108:35LAX - BHD

2 stops18h 05mAmerican Airlines

Sat 15/1109:15BHD - LAX

1 stop19h 10mAmerican Airlines

Deal found 15/9£466

Thu 30/1022:00LAX - BHD

1 stop15h 30mMultiple Airlines

Thu 6/1111:05BHD - LAX

2 stops19h 03mMultiple Airlines

Deal found 15/9£471

Mon 20/1014:10SFO - BHD

2 stops17h 30mAmerican Airlines

Fri 31/1006:45BHD - SFO

2 stops19h 23mAmerican Airlines

Deal found 16/9£473

Sun 26/1005:55SJC - BHD

2 stops32h 05mDelta

Fri 7/1106:30BHD - SJC

2 stops23h 38mDelta

Deal found 16/9£474

Thu 4/1216:25SNA - BHD

2 stops17h 35mBritish Airways

Thu 11/1211:05BHD - SNA

2 stops18h 42mBritish Airways

Deal found 16/9£474

Wed 3/1207:00ONT - BHD

2 stops19h 15mMultiple Airlines

Wed 10/1211:25BHD - ONT

2 stops19h 03mMultiple Airlines

Deal found 16/9£485

Tue 2/1215:07SNA - BHD

2 stops17h 38mBritish Airways

Tue 9/1210:00BHD - SNA

2 stops19h 41mBritish Airways

Deal found 16/9£485

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 17 September 2025.

Sun 15/322:00LAX - BHD

1 stop13h 40mBritish Airways

Fri 27/311:30BHD - LAX

1 stop14h 55mBritish Airways

Deal found 15/9£428

Wed 15/1011:30LAX - BHD

2 stops16h 25mAmerican Airlines

Thu 23/1006:35BHD - LAX

1 stop21h 40mAmerican Airlines

Deal found 15/9£429

Mon 29/913:45SFO - BHD

1 stop19h 10mDelta

Mon 6/1017:25BHD - SFO

1 stop26h 20mDelta

Deal found 16/9£463

Mon 20/1013:45SFO - BHD

1 stop19h 10mKLM

Fri 31/1006:30BHD - SFO

1 stop13h 20mKLM

Deal found 16/9£463

Fri 23/115:30LAX - BHD

1 stop14h 45mFinnair

Tue 3/211:25BHD - LAX

1 stop15h 05mFinnair

Deal found 15/9£463

Fri 5/1213:55SFO - BHD

1 stop18h 55mVirgin Atlantic

Tue 9/1217:20BHD - SFO

1 stop26h 30mVirgin Atlantic

Deal found 16/9£500

Tue 21/1020:05LAX - BFS

1 stop19h 05mMultiple Airlines

Tue 28/1006:00BFS - LAX

1 stop20h 30mMultiple Airlines

Deal found 15/9£540

Sun 15/319:00LAX - BHD

1 stop14h 50mBritish Airways

Tue 24/311:25BHD - LAX

1 stop15h 05mBritish Airways

Deal found 15/9£428

Tue 30/913:45SFO - BHD

1 stop23h 30mDelta

Tue 7/1017:25BHD - SFO

1 stop26h 20mDelta

Deal found 16/9£463

Sun 15/319:00LAX - BHD

1 stop14h 50mBritish Airways

Wed 25/317:40BHD - LAX

1 stop27h 50mBritish Airways

Deal found 15/9£428

Mon 20/1014:10SFO - BHD

2 stops17h 30mAmerican Airlines

Fri 31/1006:45BHD - SFO

2 stops19h 23mAmerican Airlines

Deal found 16/9£473

Mon 29/913:45SFO - BHD

1 stop23h 30mDelta

Tue 7/1017:25BHD - SFO

1 stop26h 20mDelta

Deal found 16/9£463

Tue 2/1216:47ONT - BHD

2 stops15h 58mBritish Airways

Tue 9/1206:35BHD - ONT

2 stops23h 53mBritish Airways

Deal found 16/9£438

Fri 17/1011:05SNA - BHD

2 stops21h 50mVirgin Atlantic

Tue 21/1017:25BHD - SNA

2 stops37h 03mVirgin Atlantic

Deal found 14/9£540

Tue 30/913:45SFO - BHD

2 stops23h 30mDelta

Mon 6/1017:25BHD - SFO

1 stop26h 20mDelta

Deal found 16/9£467

Sat 25/1008:00SJC - BHD

2 stops20h 10mAmerican Airlines

Sat 8/1106:35BHD - SJC

2 stops22h 13mAmerican Airlines

Deal found 16/9£516

Tue 2/1200:55LAX - BHD

2 stops25h 20mBritish Airways

Wed 10/1212:25BHD - LAX

1 stop14h 05mBritish Airways

Deal found 16/9£451

Thu 30/1020:10LAX - BFS

2 stops19h 10mMultiple Airlines

Thu 6/1114:25BFS - LAX

2 stops34h 10mMultiple Airlines

Deal found 15/9£605

Sun 28/910:55SFO - BHD

2 stops22h 00mDelta

Tue 7/1006:30BHD - SFO

1 stop13h 15mDelta

Deal found 16/9£467

Fri 23/115:30LAX - BHD

1 stop14h 45mBritish Airways

Tue 3/211:25BHD - LAX

1 stop15h 05mBritish Airways

Deal found 16/9£461

Thu 30/1020:25SFO - BFS

2 stops18h 55mMultiple Airlines

Thu 6/1114:25BFS - SFO

2 stops34h 05mMultiple Airlines

Deal found 15/9£619

Sun 28/910:30SFO - BHD

2 stops22h 25mDelta

Mon 6/1017:25BHD - SFO

1 stop26h 20mDelta

Deal found 16/9£467

Sat 27/914:08SJC - BHD

2 stops37h 22mIberia

Fri 3/1006:35BHD - SJC

2 stops22h 33mIberia

Deal found 16/9£1,432

Sat 14/322:00LAX - BHD

1 stop14h 40mBritish Airways

Thu 26/309:05BHD - LAX

1 stop14h 45mBritish Airways

Deal found 15/9£465

Thu 4/1212:15LAX - BFS

3 stops24h 10mMultiple Airlines

Thu 11/1209:55BFS - LAX

2 stops20h 08mMultiple Airlines

Deal found 16/9£644

Fri 24/1011:35SJC - BHD

2 stops21h 20mDelta

Fri 7/1106:30BHD - SJC

2 stops21h 56mDelta

Deal found 16/9£511

Thu 12/322:00LAX - BHD

1 stop13h 50mBritish Airways

Mon 23/319:25BHD - LAX

1 stop26h 05mBritish Airways

Deal found 15/9£465

Fri 17/1007:15SNA - BHD

2 stops30h 00mDelta

Tue 21/1017:25BHD - SNA

2 stops37h 03mDelta

Deal found 16/9£511

Sun 15/322:00LAX - BHD

1 stop13h 40mBritish Airways

Sun 29/311:00BHD - LAX

1 stop14h 35mBritish Airways

Deal found 15/9£465

Sat 25/1016:30SFO - BFS

1 stop20h 45mMultiple Airlines

Sat 8/1108:10BFS - SFO

1 stop18h 35mMultiple Airlines

Deal found 16/9£683

Last-minute flights from California to Belfast
Discover last-minute flight deals from California to Belfast. Data last updated 17 September 2025 and is based on user searches.

Wed 24/913:45SFO - BHD

1 stop23h 30mDelta

Mon 6/1017:25BHD - SFO

1 stop26h 20mDelta

Deal found 16/9£463

Wed 24/913:45SFO - BHD

1 stop19h 10mDelta

Fri 3/1006:30BHD - SFO

2 stops21h 35mDelta

Deal found 16/9£499

Thu 25/913:45SFO - BHD

1 stop23h 30mDelta

Mon 6/1017:25BHD - SFO

1 stop26h 20mDelta

Deal found 16/9£500

Wed 15/1013:25LAX - BHD

1 stop14h 30mAmerican Airlines

Thu 23/1006:35BHD - LAX

1 stop21h 40mAmerican Airlines

Deal found 15/9£425

Wed 15/1013:34LAX - BHD

2 stops18h 01mBritish Airways

Thu 23/1006:35BHD - LAX

2 stops24h 24mBritish Airways

Deal found 16/9£493

Thu 16/1021:30LAX - BHD

1 stop13h 50mAmerican Airlines

Thu 23/1006:35BHD - LAX

1 stop21h 40mAmerican Airlines

Deal found 15/9£463

Thu 16/1016:50LAX - BHD

1 stop20h 25mKLM

Thu 23/1006:30BHD - LAX

1 stop16h 20mKLM

Deal found 16/9£500

Mon 20/1014:10SFO - BHD

2 stops17h 30mAmerican Airlines

Fri 31/1006:45BHD - SFO

2 stops19h 23mAmerican Airlines

Deal found 16/9£473

Tue 21/1014:15LAX - BHD

2 stops18h 40mDelta

Tue 28/1017:20BHD - LAX

1 stop26h 25mDelta

Deal found 15/9£466

Fri 24/1013:45SFO - BHD

2 stops19h 10mMultiple Airlines

Fri 7/1106:30BHD - SFO

1 stop13h 20mMultiple Airlines

Deal found 16/9£504

Sun 26/1005:55SJC - BHD

2 stops32h 05mDelta

Fri 7/1106:30BHD - SJC

2 stops23h 38mDelta

Deal found 16/9£474

Thu 30/1022:00LAX - BHD

1 stop15h 30mMultiple Airlines

Thu 6/1111:05BHD - LAX

2 stops19h 03mMultiple Airlines

Deal found 15/9£471

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 17 September 2025.

Mon 10/1116:35SFO - BFS

3 stops55h 15mMultiple Airlines

Deal found 14/9£214

Mon 10/1116:35SFO - BHD

3 stops41h 00mMultiple Airlines

Deal found 14/9£227

Sat 27/914:10SFO - BFS

3 stops59h 45mMultiple Airlines

Deal found 16/9£253

Mon 10/1120:40SFO - BHD

1 stop15h 35mBritish Airways

Deal found 14/9£268

Sat 27/906:00SFO - BHD

2 stops43h 20mMultiple Airlines

Deal found 16/9£275

Mon 10/1114:38SJC - BHD

2 stops17h 27mBritish Airways

Deal found 14/9£287

Sat 27/913:45SFO - BHD

1 stop19h 10mAir France

Deal found 16/9£339

Sat 27/914:08SJC - BHD

2 stops37h 22mIberia

Deal found 16/9£514

Wed 12/1115:01SFO - BHD

2 stops15h 14mBritish Airways

Deal found 17/9£574

Wed 12/1114:46SFO - BHD

3 stops58h 34mMultiple Airlines

Deal found 17/9£760

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Sun 15/3

22:00-18:40

1 stop13h 40m

Belfast City

Fri 27/3

11:30-19:25

1 stop14h 55m

£428

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Sun 15/3

19:00-16:50

1 stop14h 50m

Belfast City

Tue 24/3

11:25-19:30

1 stop15h 05m

£428

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Sun 15/3

19:00-16:50

1 stop14h 50m

Belfast City

Wed 25/3

17:40-14:30

1 stop27h 50m

£428

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 15/10

11:30-11:55

2 stops16h 25m

Belfast City

Thu 23/10

06:35-20:15

1 stop21h 40m

£429

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Tue 2/12

16:47-16:45

2 stops15h 58m

Belfast City

Tue 9/12

06:35-22:28

2 stops23h 53m

£438

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Tue 2/12

00:55-10:15

2 stops25h 20m

Belfast City

Wed 10/12

12:25-18:30

1 stop14h 05m

£451

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

15:30-14:15

1 stop14h 45m

Belfast City

Tue 3/2

11:25-18:30

1 stop15h 05m

£461

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 29/9

13:45-16:55

1 stop19h 10m

Belfast City

Mon 6/10

17:25-11:45

1 stop26h 20m

£463

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 20/10

13:45-16:55

1 stop19h 10m

Belfast City

Fri 31/10

06:30-12:50

1 stop13h 20m

£463

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 23/1

15:30-14:15

1 stop14h 45m

Belfast City

Tue 3/2

11:25-18:30

1 stop15h 05m

£463

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 41 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 £428, British Airways can have you in Belfast from California in 13h 40m. The distance from California to Belfast is about 5128 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 Santa Ana J. Wayne/Orange Cnty - Belfast City, 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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Fly with Cheapflights

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 £214

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 10/11. 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 17 September 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 17 September 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 17 September 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 17 September 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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Book with Flexibility

Travel Smart

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 17 September 2025.