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Cheap flights from Northern Ireland to California from £280

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 23/5. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LAX
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Northern Ireland to California

Keep the following information in mind while searching for Northern Ireland to California flight deals. Data was last updated 21 February 2025.

Round-trip from

£418

One-way from

£280

Popular in

August

Cheapest in

January

Average price

£861
British Airways
  • British Airways
  • 20/3-27/3
  • 3 total stops
  • 30h 43m total
  • Northern Ireland to California
Search Deals
23/5
  • 23/5
  • 3 total stops
  • 51h 43m total
  • Northern Ireland to California
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£114 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£36 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Northern Ireland to California

Cheapest flights from Northern Ireland to California
Explore the most affordable flight options available from Northern Ireland to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Thu 20/309:00BHD - SFO
1 stop14h 00mBritish Airways
Thu 27/310:37SFO - BHD
2 stops16h 43mBritish Airways
Deal found 20/2£418
Sat 3/509:35BHD - LAX
1 stop16h 30mMultiple Airlines
Sat 10/513:55LAX - BHD
1 stop22h 50mMultiple Airlines
Deal found 20/2£491
Sat 3/507:05BHD - LAX
1 stop18h 30mIberia
Sat 10/508:25LAX - BHD
2 stops22h 40mIberia
Deal found 20/2£494
Thu 1/506:35BHD - LAX
1 stop16h 20mAmerican Airlines
Thu 8/515:40LAX - BHD
1 stop13h 35mAmerican Airlines
Deal found 20/2£502
Fri 2/506:30BHD - LAX
1 stop16h 20mDelta
Fri 9/511:50LAX - BHD
2 stops21h 05mDelta
Deal found 20/2£505
Thu 1/506:35BHD - ONT
2 stops23h 23mAmerican Airlines
Fri 9/513:15ONT - BHD
2 stops23h 30mAmerican Airlines
Deal found 20/2£506
Thu 1/516:20BHD - SNA
2 stops28h 31mAmerican Airlines
Thu 8/516:30SNA - BHD
2 stops18h 15mAmerican Airlines
Deal found 20/2£506
Thu 20/309:00BHD - SFO
2 stops18h 55mMultiple Airlines
Thu 27/307:05SFO - BHD
2 stops20h 15mMultiple Airlines
Deal found 20/2£506
Thu 6/307:30BHD - LAS
1 stop15h 10mMultiple Airlines
Tue 11/317:45LAS - BHD
1 stop15h 45mMultiple Airlines
Deal found 21/2£510
Wed 14/511:30BHD - LAX
1 stop16h 45mBritish Airways
Thu 22/520:05LAX - BHD
1 stop15h 15mBritish Airways
Deal found 20/2£524
Thu 1/519:25BHD - SNA
2 stops32h 42mBritish Airways
Sat 10/516:30SNA - BHD
2 stops20h 15mBritish Airways
Deal found 20/2£534
Thu 20/306:30BHD - SFO
1 stop13h 20mVirgin Atlantic
Thu 27/314:50SFO - BHD
1 stop23h 10mVirgin Atlantic
Deal found 20/2£551

Find flights from Northern Ireland to California within your budget

Customise your flight search to find flights from Northern Ireland to California that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 February 2025.

Fly from

Northern Ireland

Fly to

California

Route

Depart

Return

Price

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 20/3

09:00-16:00

1 stop14h 00m

San Francisco

Thu 27/3

10:37-10:20

2 stops16h 43m

£418

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Sat 3/5

09:35-18:05

1 stop16h 30m

Los Angeles

Sat 10/5

13:55-17:15

1 stop19h 20m

£491

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Sat 3/5

07:05-17:35

1 stop18h 30m

Los Angeles

Sat 10/5

08:25-15:05

2 stops22h 40m

£494

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Thu 1/5

06:35-14:55

1 stop16h 20m

Los Angeles

Thu 8/5

15:40-13:15

1 stop13h 35m

£502

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Fri 2/5

06:30-14:50

1 stop16h 20m

Los Angeles

Fri 9/5

11:50-16:55

2 stops21h 05m

£505

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 20/3

09:00-20:55

2 stops18h 55m

San Francisco

Thu 27/3

07:05-10:20

2 stops20h 15m

£506

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 1/5

06:35-21:58

2 stops23h 23m

Ontario

Fri 9/5

13:15-20:45

2 stops23h 30m

£506

BelfastSanta Ana

BHD - SNA

BHDSNA

Belfast City

Thu 1/5

16:20-16:01

2 stops31h 41m

Santa Ana J. Wayne/Orange Cnty

Mon 12/5

13:45-15:40

2 stops17h 55m

£506

BelfastLas Vegas

BHD - LAS

BHDLAS

Belfast City

Thu 6/3

07:30-14:40

1 stop15h 10m

Las Vegas Harry Reid Intl

Tue 11/3

17:45-16:30

1 stop15h 45m

£510

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Sun 4/5

06:30-15:21

2 stops16h 51m

Los Angeles

Sun 11/5

16:50-16:55

1 stop16h 05m

£510

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 27 results
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Best time to book a flight from Northern Ireland to California

Have a flexible travel schedule? Discover the best time to fly to California from Northern Ireland 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.

Travel insights for flights from Northern Ireland to California

Get recent, data-driven insights about flights from Northern Ireland to California including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Northern Ireland to California (average of £575). Flying from Northern Ireland 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 NIR to CA?

Find hourly flight availability from Northern Ireland 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 21 February 2025.

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

Rainfall in California by month

Plan your trip to California by taking into account the average rainfall totals by month.

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.

Temperature in California by month

Plan your trip to California by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated 21 February 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Northern Ireland to California by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,213 reviews
Check prices

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,213 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,331 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic
7.5
Good
654 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • What are the cheapest airlines to fly from Northern Ireland to California one-way?

    £573 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on Finnair and KLM, with prices starting from £905 and £1,267, respectively.

  • Can I find deals for flights from Northern Ireland to California that include hotel bookings?

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

  • How can I find direct flights from Northern Ireland to California?

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

  • Can I find deals for business class flights from Northern Ireland to California?

    Yes. Cheapflights offers flight deals from Northern Ireland 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 Northern Ireland to California?

    Currently, January is the cheapest month in which you can book a flight from Northern Ireland to California (average of £575). Flying from Northern Ireland 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

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Alternative routes for Northern Ireland to California

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Northern Ireland to California

Discover the top airline that operate flights from Northern Ireland to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£433Average£675FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Northern Ireland to California?

Cheapflights makes it easy to find Northern Ireland to California flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights simply makes it quick and affordable to book flights from Northern Ireland to California by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to California from Northern Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for Northern Ireland to California flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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