How long is the flight from Belfast to California?

British Airways, Delta, and Virgin Atlantic can get you from Belfast to California in just under 17h 35m. Your travel time can differ by up to 15h 42m. The distance from Belfast to California is about 4902 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in California ranges from 0.0 - 87.0 inches per month. February is typically the wettest month, when rainfall can reach 87.0 mm. July is typically the driest time to visit California when rainfall is around 0.0 mm.

If weather is an important factor for your trip to California, 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

What are the most popular routes from Belfast to California?

Most travelers choose Belfast Intl - Las Vegas Harry Reid Intl, Belfast Intl - San Francisco or Belfast City - Las Vegas Harry Reid Intl when deciding on the best route from Belfast to California.

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

Our data shows that June tends to be the cheapest month to fly to California from Belfast. Users have commonly found prices around £628 for the month, but tickets can be as low as £405. Due to multiple factors, prepare for potentially higher prices in August.

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

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

How can I find direct flights from Belfast to California?

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

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

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

£292+ Cheap Flights from Belfast to California

Cheap flight deals from Belfast to California

Round-trip from	£421
One-way from	£292
Popular in	August
Cheapest in	June
Average price	£1,070

10/10-17/10
2 total stops
49h 00m total
Belfast to California

Search Deals

7/9
3 total stops
51h 10m total
Belfast to California

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£61 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (£31 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Belfast to California

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

Fri 10/1006:05BFS - LAX

1 stop16h 05mMultiple Airlines

Fri 17/1016:30LAX - BFS

1 stop32h 55mMultiple Airlines

Deal found 28/8£421

Sat 11/1016:30BFS - LAX

1 stop29h 40mMultiple Airlines

Sat 18/1020:52LAX - BFS

2 stops29h 03mMultiple Airlines

Deal found 27/8£622

Sat 8/1109:15BHD - LAS

1 stop17h 35mBritish Airways

Sat 15/1120:55LAS - BHD

1 stop14h 45mBritish Airways

Deal found 28/8£624

Mon 29/912:15BHD - LAS

1 stop15h 40mBritish Airways

Mon 6/1022:00LAS - BHD

1 stop13h 35mBritish Airways

Deal found 26/8£647

Mon 29/906:30BHD - LAS

2 stops21h 40mDelta

Mon 6/1013:59LAS - BHD

2 stops18h 56mDelta

Deal found 26/8£654

Thu 30/1009:05BHD - LAS

1 stop17h 45mBritish Airways

Mon 3/1117:15LAS - BHD

2 stops17h 20mBritish Airways

Deal found 26/8£657

Fri 29/807:00BHD - LAX

1 stop15h 10mMultiple Airlines

Fri 5/916:30LAX - BHD

1 stop19h 55mMultiple Airlines

Deal found 28/8£690

Sun 21/1217:20BHD - SFO

2 stops33h 17mVirgin Atlantic

Tue 13/106:00SFO - BHD

2 stops26h 50mVirgin Atlantic

Deal found 28/8£705

Sat 11/1016:50BFS - LAS

3 stops36h 05mMultiple Airlines

Fri 17/1000:49LAS - BFS

3 stops33h 01mMultiple Airlines

Deal found 27/8£728

Mon 29/908:50BHD - LAS

3 stops35h 51mMultiple Airlines

Mon 6/1007:25LAS - BHD

3 stops29h 45mMultiple Airlines

Deal found 26/8£785

Sun 21/1206:30BHD - SFO

1 stop16h 30mBritish Airways

Tue 13/117:30SFO - BHD

1 stop15h 15mBritish Airways

Deal found 28/8£802

Thu 30/1007:25BHD - LAS

3 stops47h 23mMultiple Airlines

Mon 3/1112:10LAS - BHD

2 stops24h 20mMultiple Airlines

Deal found 26/8£830

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

Fri 10/1006:05BFS - LAX

1 stop16h 05mMultiple Airlines

Fri 17/1016:30LAX - BFS

1 stop32h 55mMultiple Airlines

Deal found 28/8£421

Sat 8/1109:15BHD - LAS

1 stop17h 35mBritish Airways

Sat 15/1120:55LAS - BHD

1 stop14h 45mBritish Airways

Deal found 28/8£624

Mon 29/906:30BHD - LAS

2 stops25h 25mDelta

Mon 6/1020:25LAS - BHD

1 stop12h 30mDelta

Deal found 26/8£654

Sun 21/1217:20BHD - SFO

2 stops33h 17mVirgin Atlantic

Tue 13/106:00SFO - BHD

2 stops26h 50mVirgin Atlantic

Deal found 28/8£705

Sat 11/1016:30BFS - LAX

1 stop29h 40mMultiple Airlines

Sat 18/1020:52LAX - BFS

2 stops29h 03mMultiple Airlines

Deal found 27/8£622

Mon 29/912:15BHD - LAS

1 stop15h 40mBritish Airways

Mon 6/1022:00LAS - BHD

1 stop13h 35mBritish Airways

Deal found 26/8£647

Thu 30/1009:05BHD - LAS

1 stop17h 45mBritish Airways

Mon 3/1117:15LAS - BHD

2 stops17h 20mBritish Airways

Deal found 26/8£657

Sat 11/1016:50BFS - LAS

3 stops36h 05mMultiple Airlines

Fri 17/1000:49LAS - BFS

3 stops33h 01mMultiple Airlines

Deal found 27/8£728

Mon 29/908:50BHD - LAS

3 stops35h 51mMultiple Airlines

Mon 6/1007:25LAS - BHD

3 stops29h 45mMultiple Airlines

Deal found 26/8£785

Sun 21/1206:30BHD - SFO

1 stop16h 30mBritish Airways

Tue 13/117:30SFO - BHD

1 stop15h 15mBritish Airways

Deal found 28/8£802

Sun 14/917:25BHD - SFO

1 stop26h 20mDelta

Thu 18/913:45SFO - BHD

1 stop23h 30mDelta

Deal found 29/8£1,049

Thu 30/1007:25BHD - LAS

3 stops47h 23mMultiple Airlines

Mon 3/1109:10LAS - BHD

3 stops27h 20mMultiple Airlines

Deal found 26/8£830

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

Fri 29/807:00BHD - LAX

1 stop15h 10mMultiple Airlines

Fri 5/916:30LAX - BHD

1 stop19h 55mMultiple Airlines

Deal found 28/8£690

Fri 29/816:55BHD - LAX

2 stops33h 30mAer Lingus

Fri 5/920:15LAX - BHD

2 stops16h 35mAer Lingus

Deal found 28/8£875

Sun 14/917:25BHD - SFO

1 stop26h 20mDelta

Thu 18/913:45SFO - BHD

1 stop23h 30mDelta

Deal found 29/8£1,049

Sun 14/917:25BHD - SFO

1 stop26h 20mVirgin Atlantic

Thu 18/910:30SFO - BHD

2 stops22h 25mVirgin Atlantic

Deal found 29/8£1,121

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

Sun 7/922:55BFS - LAX

3 stops51h 10mMultiple Airlines

Deal found 29/8£292

Fri 5/906:05BFS - SFO

3 stops48h 25mMultiple Airlines

Deal found 27/8£300

Tue 7/1008:15BFS - LAX

2 stops32h 13mMultiple Airlines

Deal found 27/8£303

Sun 26/1022:45BFS - LAX

3 stops48h 15mMultiple Airlines

Deal found 28/8£313

Sat 25/1019:35BFS - LAX

3 stops54h 30mMultiple Airlines

Deal found 28/8£318

Sun 26/1014:15BHD - LAX

3 stops34h 50mMultiple Airlines

Deal found 28/8£332

Fri 5/907:00BHD - SFO

3 stops47h 30mMultiple Airlines

Deal found 27/8£333

Sun 7/907:05BHD - LAX

1 stop15h 05mMultiple Airlines

Deal found 29/8£354

Tue 7/1014:20BHD - LAX

1 stop31h 50mMultiple Airlines

Deal found 27/8£358

Tue 7/1009:50BHD - LAX

2 stops16h 35mAer Lingus

Deal found 27/8£399

Mon 8/918:50BHD - SFO

2 stops29h 05mAer Lingus

Deal found 28/8£406

Sun 14/907:05BHD - SFO

3 stops47h 57mMultiple Airlines

Deal found 28/8£422

Fly from

Fly to

Route

Depart

Return

Price

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Fri 10/10

06:05-14:10

1 stop16h 05m

Los Angeles

Fri 17/10

16:30-09:25

1 stop32h 55m

£421

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Sat 11/10

16:30-14:10

1 stop29h 40m

Los Angeles

Sat 18/10

20:52-09:55

2 stops29h 03m

£622

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Sat 8/11

09:15-18:50

1 stop17h 35m

Las Vegas Harry Reid Intl

Sat 15/11

20:55-19:40

1 stop14h 45m

£624

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Mon 29/9

12:15-19:55

1 stop15h 40m

Las Vegas Harry Reid Intl

Mon 6/10

22:00-19:35

1 stop13h 35m

£647

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Mon 29/9

06:30-23:55

2 stops25h 25m

Las Vegas Harry Reid Intl

Mon 6/10

20:25-16:55

1 stop12h 30m

£654

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Thu 30/10

09:05-19:50

1 stop17h 45m

Las Vegas Harry Reid Intl

Mon 3/11

17:15-18:35

2 stops17h 20m

£657

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Sun 21/12

17:20-18:37

2 stops33h 17m

San Francisco

Tue 13/1

06:00-16:50

2 stops26h 50m

£705

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Sat 11/10

16:50-20:55

3 stops36h 05m

Las Vegas Harry Reid Intl

Fri 17/10

00:49-17:50

3 stops33h 01m

£728

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Mon 29/9

08:50-12:41

3 stops35h 51m

Las Vegas Harry Reid Intl

Mon 6/10

07:25-21:10

3 stops29h 45m

£785

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Sun 21/12

06:30-15:00

1 stop16h 30m

San Francisco

Tue 13/1

17:30-16:45

1 stop15h 15m

£802

Flights are sorted by cheapest return flights first.

Deals found on 29/8

Showing 1-10 of 42 results

...

Best time to book a flight from Belfast to California

Have a flexible travel schedule? Discover the best time to fly to California from Belfast 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 Belfast to California

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

Currently, January is the cheapest month in which you can book a flight from Belfast to California (average of £575). Flying from Belfast to California in July is currently the most expensive (average of £811). 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 BFS to CA?

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

Reviews of airlines servicing California

Check out reviews from past customers who have flown with KLM, American Airlines, andBritish Airways from Belfast to California to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,383 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

American Airlines

7.2

Good

10,000 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

British Airways

6.7

Okay

7,320 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

How long is the flight from Belfast to California?
British Airways, Delta, and Virgin Atlantic can get you from Belfast to California in just under 17h 35m. Your travel time can differ by up to 15h 42m. The distance from Belfast to California is about 4902 mi. This flight may include one or multiple stops.
What are the most popular routes from Belfast to California?
Most travelers choose Belfast Intl - Las Vegas Harry Reid Intl, Belfast Intl - San Francisco or Belfast City - Las Vegas Harry Reid Intl when deciding on the best route from Belfast to California.
Can I find deals for flights from Belfast to California that include hotel bookings?
Yes. In addition to deals on Belfast to California flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Belfast to California?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to California.
Can I find deals for business class flights from Belfast to California?
Yes. Cheapflights offers flight deals from Belfast to California 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 Belfast to California?
Currently, January is the cheapest month in which you can book a flight from Belfast to California (average of £575). Flying from Belfast to California in July is currently the most expensive (average of £811). 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 Belfast to California

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Complete your trip

California car hire

Los Angeles Airport car hire

San Francisco Airport car hire

San Diego Airport car hire

San Jose Airport car hire

Sacramento Intl Airport car hire

Ontario Airport car hire

Oakland Airport car hire

Burbank Bob Hope Airport car hire

Long Beach Municipal Airport car hire

Palm Springs Airport car hire

Fresno Airterminal Airport car hire

Direct flights to United States

Top 3 airlines flying from Belfast to California

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£366	Average£585	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£469	Average£520	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
KLM	Cheapest£506	Average£608	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to California from Belfast today with Cheapflights!

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

Cheapflights helps you find that perfect flight to California from Belfast by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Belfast to California with no change fees.

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

Of course! You can now track prices for flights from Belfast to California 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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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.

Cheap flights from Belfast to California from £292

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Belfast to California

Keep the following information in mind while searching for Belfast to California 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 Belfast to California

Cheapest flights from Belfast to CaliforniaExplore the most affordable flight options available from Belfast to California. 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 Belfast to California. 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 Belfast to California that are best for you.

Best time to book a flight from Belfast to California

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Belfast to California. 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.

Reviews of airlines servicing California

Check out reviews from past customers who have flown with KLM, American Airlines, andBritish Airways from Belfast to California to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Belfast to California. 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 Belfast to California?

What are the most popular routes from Belfast to California?

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

How can I find direct flights from Belfast to California?

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

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

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 Belfast to California

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

Top 3 airlines flying from Belfast to California

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 Belfast to California?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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