How long is the flight from California to Belfast?

Airlines like British Airways, American Airlines, and Delta fly from California to Belfast in about 15h 15m. The time it takes to get you to your destination can typically vary by up to 3h 40m. There are 5128 mi between California and Belfast. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Belfast ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Belfast when rainfall is around 2.0 in.

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 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

What are the most popular routes from California to Belfast?

The most popular route from California to Belfast is Los Angeles - Belfast Intl. You may also consider Los Angeles - Belfast City or San Francisco - Belfast Intl.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from California to Belfast as you normally would.

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 vacation 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.

$479+ Flights from California to Belfast

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from California to Belfast with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 December 28, 2025.

Sat 12/2710:00 amLAX - BHD

2 stops22h 50mDelta

Sat 1/36:30 amBHD - LAX

2 stops24h 16mDelta

Deal found 12/26

$2,265

Sat 12/277:15 pmLAX - BHD

1 stop16h 25mBritish Airways

Sat 1/39:15 amBHD - LAX

1 stop19h 10mBritish Airways

Deal found 12/26

$2,448

Sat 12/275:40 pmLAX - BHD

1 stop15h 05mMultiple Airlines

Sat 1/311:35 amBHD - LAX

1 stop33h 55mMultiple Airlines

Deal found 12/27

$3,395

Best flights from California to Belfast
Discover carefully curated flight deals from California to Belfast that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

Fri 3/66:00 pmLAX - BHD

1 stop15h 15mBritish Airways

Fri 3/138:45 amBHD - LAX

1 stop15h 05mBritish Airways

Deal found 12/27

$602

Tue 1/1310:11 amSFO - BHD

2 stops17h 19mAmerican Airlines

Tue 1/208:45 amBHD - SFO

2 stops20h 52mAmerican Airlines

Deal found 12/26

$659

Tue 1/131:55 pmSFO - BHD

1 stop18h 55mDelta

Tue 1/205:20 pmBHD - SFO

1 stop26h 30mDelta

Deal found 12/26

$668

Tue 2/103:25 pmLAX - BFS

2 stops23h 10mMultiple Airlines

Tue 2/1710:35 amBFS - LAX

2 stops33h 10mMultiple Airlines

Deal found 12/27

$759

Thu 1/299:00 pmLAX - BHD

1 stop27h 25mBritish Airways

Thu 2/59:05 amBHD - LAX

1 stop14h 45mBritish Airways

Deal found 12/27

$611

Fri 3/61:15 pmONT - BHD

2 stops19h 35mKLM

Fri 3/136:30 amBHD - ONT

2 stops17h 42mKLM

Deal found 12/27

$1,278

Fri 1/234:45 pmLAX - BHD

2 stops16h 30mBritish Airways

Tue 2/36:35 amBHD - LAX

1 stop14h 55mBritish Airways

Deal found 12/26

$622

Wed 3/49:00 pmLAX - BHD

1 stop14h 10mBritish Airways

Sun 3/88:25 pmBHD - LAX

1 stop25h 05mBritish Airways

Deal found 12/26

$627

Mon 2/97:10 pmLAX - BFS

2 stops18h 00mMultiple Airlines

Mon 2/162:15 pmBFS - LAX

2 stops34h 20mMultiple Airlines

Deal found 12/26

$834

Wed 2/253:30 pmLAX - BHD

1 stop14h 45mBritish Airways

Sun 3/18:25 pmBHD - LAX

1 stop25h 05mBritish Airways

Deal found 12/26

$627

Wed 2/49:00 pmLAX - BHD

1 stop29h 20mBritish Airways

Sun 2/812:10 pmBHD - LAX

1 stop14h 20mBritish Airways

Deal found 12/25

$636

Mon 1/195:30 pmSFO - BHD

1 stop14h 35mBritish Airways

Mon 1/267:25 pmBHD - SFO

1 stop27h 35mBritish Airways

Deal found 12/26

$652

Tue 2/101:55 pmSFO - BFS

2 stops21h 10mMultiple Airlines

Tue 2/171:55 pmBFS - SFO

3 stops32h 35mMultiple Airlines

Deal found 12/26

$966

Sun 4/194:35 pmSFO - BHD

1 stop17h 10mBritish Airways

Thu 4/238:35 pmBHD - SFO

1 stop25h 15mBritish Airways

Deal found 12/25

$654

Thu 5/77:30 pmSFO - BHD

1 stop15h 50mBritish Airways

Wed 5/136:50 amBHD - SFO

1 stop15h 00mBritish Airways

Deal found 12/27

$662

Wed 3/45:30 pmSFO - BHD

1 stop15h 05mBritish Airways

Sun 3/89:10 amBHD - SFO

1 stop13h 50mBritish Airways

Deal found 12/25

$676

Fri 3/68:15 pmLAX - BFS

2 stops16h 15mMultiple Airlines

Fri 3/132:20 pmBFS - LAX

1 stop31h 40mMultiple Airlines

Deal found 12/27

$1,250

Thu 1/159:00 pmSFO - BHD

1 stop13h 50mBritish Airways

Wed 1/216:35 amBHD - SFO

1 stop16h 25mBritish Airways

Deal found 12/27

$679

Wed 3/47:10 amONT - BHD

2 stops28h 00mBritish Airways

Sun 3/810:40 amBHD - ONT

2 stops18h 27mBritish Airways

Deal found 12/25

$841

Wed 2/47:16 amONT - BHD

2 stops25h 19mBritish Airways

Sun 2/83:10 pmBHD - ONT

2 stops39h 38mBritish Airways

Deal found 12/25

$841

Wed 2/410:53 amSNA - BHD

2 stops21h 42mBritish Airways

Sun 2/810:40 amBHD - SNA

2 stops20h 16mBritish Airways

Deal found 12/25

$841

Thu 5/712:23 pmSJC - BHD

2 stops19h 07mBritish Airways

Wed 5/1311:30 amBHD - SJC

2 stops20h 07mBritish Airways

Deal found 12/27

$863

Fri 2/274:22 pmSJC - BHD

2 stops16h 53mBritish Airways

Tue 3/310:00 amBHD - SJC

2 stops20h 56mBritish Airways

Deal found 12/25

$891

Wed 3/42:26 pmSJC - BHD

2 stops18h 09mBritish Airways

Sun 3/83:10 pmBHD - SJC

2 stops38h 22mBritish Airways

Deal found 12/25

$891

Fri 3/65:22 pmSNA - BHD

2 stops17h 53mBritish Airways

Fri 3/136:45 amBHD - SNA

2 stops21h 44mBritish Airways

Deal found 12/27

$919

Wed 3/1812:47 pmSNA - BHD

2 stops23h 23mBritish Airways

Sun 3/228:25 pmBHD - SNA

2 stops56h 04mBritish Airways

Deal found 12/25

$950

Mon 6/152:46 pmSJC - BHD

2 stops18h 44mBritish Airways

Fri 6/268:05 pmBHD - SJC

2 stops30h 45mBritish Airways

Deal found 12/27

$1,319

Last-minute flights from California to Belfast
Discover last-minute flight deals from California to Belfast. Data last updated December 28, 2025 and is based on user searches.

Sat 12/2710:00 amLAX - BHD

2 stops22h 50mDelta

Sat 1/36:30 amBHD - LAX

2 stops24h 16mDelta

Deal found 12/26

$2,265

Sat 12/277:15 pmLAX - BHD

1 stop16h 25mBritish Airways

Sat 1/39:15 amBHD - LAX

1 stop19h 10mBritish Airways

Deal found 12/26

$2,448

Sat 12/275:40 pmLAX - BHD

1 stop15h 05mMultiple Airlines

Sat 1/311:35 amBHD - LAX

1 stop33h 55mMultiple Airlines

Deal found 12/27

$3,395

Tue 1/1310:11 amSFO - BHD

2 stops17h 19mAmerican Airlines

Tue 1/208:45 amBHD - SFO

2 stops20h 52mAmerican Airlines

Deal found 12/26

$659

Tue 1/131:55 pmSFO - BHD

1 stop18h 55mDelta

Tue 1/205:20 pmBHD - SFO

1 stop26h 30mDelta

Deal found 12/26

$668

Thu 1/159:00 pmSFO - BHD

1 stop13h 50mBritish Airways

Wed 1/216:35 amBHD - SFO

1 stop16h 25mBritish Airways

Deal found 12/27

$679

Thu 1/159:00 pmSFO - BHD

1 stop13h 50mMultiple Airlines

Wed 1/2111:25 amBHD - SFO

2 stops21h 22mMultiple Airlines

Deal found 12/27

$687

Thu 1/153:35 pmSFO - BHD

2 stops19h 15mAmerican Airlines

Wed 1/216:35 amBHD - SFO

2 stops21h 35mAmerican Airlines

Deal found 12/27

$689

Mon 1/198:00 amSFO - BHD

2 stops22h 15mBritish Airways

Mon 1/262:40 pmBHD - SFO

1 stop32h 20mBritish Airways

Deal found 12/26

$643

Fri 1/239:00 pmLAX - BHD

1 stop27h 15mBritish Airways

Tue 2/310:00 amBHD - LAX

1 stop13h 50mBritish Airways

Deal found 12/26

$611

Fri 1/236:10 amLAX - BHD

3 stops43h 00mMultiple Airlines

Tue 2/36:35 amBHD - LAX

2 stops41h 45mMultiple Airlines

Deal found 12/26

$12,077

Mon 1/266:00 amONT - BHD

2 stops20h 40mAmerican Airlines

Mon 2/26:35 amBHD - ONT

2 stops24h 13mAmerican Airlines

Deal found 12/27

$639

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 December 28, 2025.

Wed 6/174:35 pmSFO - BHD

2 stops16h 50mBritish Airways

Deal found 12/26

$479

Wed 2/119:50 amLAX - BHD

2 stops16h 25mBritish Airways

Deal found 12/27

$483

Wed 2/111:46 pmONT - BHD

2 stops16h 29mBritish Airways

Deal found 12/27

$483

Wed 2/111:54 pmSNA - BHD

2 stops16h 21mBritish Airways

Deal found 12/27

$483

Wed 6/175:45 pmSFO - BHD

2 stops32h 50mAer Lingus

Deal found 12/26

$499

Wed 6/179:13 amSFO - BFS

3 stops47h 02mMultiple Airlines

Deal found 12/26

$502

Wed 6/175:45 pmSFO - BHD

2 stops18h 05mAmerican Airlines

Deal found 12/26

$503

Wed 6/177:00 amSFO - BHD

3 stops43h 25mMultiple Airlines

Deal found 12/26

$506

Wed 6/1710:20 amSJC - BHD

2 stops21h 15mBritish Airways

Deal found 12/26

$674

Find flight deals from California to Belfast

Round-trip from	$602 (oojo)
One-way from	$479 (Cheapflightsfares)
Popular in	June
Cheapest in	October
Average price	$1,098

From California to Belfast

Search Deals

One-way flight from California to Belfast

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($187 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 3/6

6:00 pm-5:15 pm

1 stop15h 15m

Belfast City

Fri 3/13

8:45 am-4:50 pm

1 stop15h 05m

$602

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Thu 1/29

9:00 pm-8:25 am

1 stop27h 25m

Belfast City

Thu 2/5

9:05 am-3:50 pm

1 stop14h 45m

$611

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 1/23

4:45 pm-5:15 pm

2 stops16h 30m

Belfast City

Tue 2/3

6:35 am-1:30 pm

1 stop14h 55m

$622

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 3/4

9:00 pm-7:10 pm

1 stop14h 10m

Belfast City

Sun 3/8

8:25 pm-2:30 pm

1 stop25h 05m

$627

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 2/25

3:30 pm-2:15 pm

1 stop14h 45m

Belfast City

Sun 3/1

8:25 pm-1:30 pm

1 stop25h 05m

$627

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 2/4

9:00 pm-10:20 am

1 stop29h 20m

Belfast City

Sun 2/8

12:10 pm-6:30 pm

1 stop14h 20m

$636

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 1/19

5:30 pm-4:05 pm

1 stop14h 35m

Belfast City

Mon 1/26

7:25 pm-3:00 pm

1 stop27h 35m

$652

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 4/19

4:35 pm-5:45 pm

1 stop17h 10m

Belfast City

Thu 4/23

8:35 pm-1:50 pm

1 stop25h 15m

$654

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 1/13

10:11 am-11:30 am

2 stops17h 19m

Belfast City

Tue 1/20

8:45 am-9:37 pm

2 stops20h 52m

$659

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 5/7

7:30 pm-7:20 pm

1 stop15h 50m

Belfast City

Wed 5/13

6:50 am-1:50 pm

1 stop15h 00m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

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 round-trip 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, March is the cheapest month in which you can book a flight from California to Belfast (average of $586). Flying from California to Belfast in June is currently the most expensive (average of $927). 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.

Related info for your journey

How long is the flight from California to Belfast?
Airlines like British Airways, American Airlines, and Delta fly from California to Belfast in about 15h 15m. The time it takes to get you to your destination can typically vary by up to 3h 40m. There are 5128 mi between California and Belfast. Both multi-stop and nonstop flights can be found to your destination and back.
What are the most popular routes from California to Belfast?
The most popular route from California to Belfast is Los Angeles - Belfast Intl. You may also consider Los Angeles - Belfast City or San Francisco - Belfast Intl.
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 vacation 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, March is the cheapest month in which you can book a flight from California to Belfast (average of $586). Flying from California to Belfast in June is currently the most expensive (average of $927). 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

Alternative routes for California to Belfast

John F Kennedy Intl to Belfast Intl flights

John F Kennedy Intl to Belfast City flights

Newark to Belfast Intl flights

Newark to Belfast City flights

Dallas/Fort Worth to Belfast City flights

Seattle to Belfast Intl flights

Seattle to Belfast City flights

Dallas/Fort Worth to Belfast Intl flights

LaGuardia to Belfast Intl flights

LaGuardia to Belfast City flights

O'Hare Intl to Belfast Intl flights

O'Hare Intl to Belfast City flights

Dulles Intl to Belfast Intl flights

Hobby to Belfast City flights

Boston to Belfast Intl flights

Boston to Belfast City flights

Hobby to Belfast Intl flights

Baltimore to Belfast Intl flights

Reagan-National to Belfast Intl flights

Philadelphia to Belfast City flights

Dulles Intl to Belfast City flights

George Bush Intcntl to Belfast Intl flights

Los Angeles to Belfast Intl flights

Baltimore to Belfast City flights

Reagan-National to Belfast City flights

George Bush Intcntl to Belfast City flights

Denver to Belfast Intl flights

Orlando to Belfast Intl flights

Minneapolis to Belfast Intl flights

Denver to Belfast City flights

Los Angeles to Belfast City flights

Raleigh to Belfast Intl flights

Raleigh to Belfast City flights

Atlanta to Belfast Intl flights

Dayton to Belfast City flights

New Orleans to Belfast City flights

Atlanta to Belfast City flights

Minneapolis to Belfast City flights

Cincinnati to Belfast City flights

Detroit to Belfast City flights

Pittsburgh to Belfast City flights

Baton Rouge to Belfast City flights

Grand Rapids to Belfast City flights

Austin to Belfast Intl flights

Charlotte to Belfast City flights

Love Field to Belfast City flights

Greensboro to Belfast City flights

Indianapolis to Belfast Intl flights

San Francisco to Belfast Intl flights

Indianapolis to Belfast City flights

Top airline flying from California to Belfast

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$599	Average$859	FlexibilityNo cancel fee	On-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$479+ Cheap flights from California to Belfast

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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from California to Belfast with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap 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 December 28, 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 December 28, 2025.

Find flight deals from California to Belfast

Keep the following information in mind while searching for California to Belfast flight deals. Data was last updated December 28, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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?

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.

Top airline flying from California to Belfast

100% Free

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 December 28, 2025.