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Cheap flights from Northern Ireland to California from £359

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 13/6. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LAX
2 Apr — 9 Apr1
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 28 March 2025.

Round-trip from

£544

One-way from

£359

Popular in

August

Cheapest in

January

Average price

£546
1/5-7/5
  • 1/5-7/5
  • 2 total stops
  • 56h 20m total
  • Northern Ireland to California
13/6
  • 13/6
  • 2 total stops
  • 20h 43m total
  • Northern Ireland to California
Highest demand for flights based on searches. 16% potential increase in price (£98 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease (£33 potential savings vs. average return price).
Average for round-trip flights in March 2025

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 28 March 2025.

Thu 1/521:10BFS - LAX
1 stop25h 00mMultiple Airlines
Wed 7/516:30LAX - BFS
1 stop31h 20mMultiple Airlines
Deal found 27/3£544
Tue 8/417:25BHD - SFO
1 stop26h 20mMultiple Airlines
Sun 27/415:05SFO - BHD
2 stops17h 50mMultiple Airlines
Deal found 27/3£580
Tue 8/420:20BHD - SFO
1 stop25h 30mBritish Airways
Sun 27/423:59SFO - BHD
2 stops28h 56mBritish Airways
Deal found 26/3£598
Thu 24/421:10BFS - LAS
3 stops35h 49mMultiple Airlines
Wed 30/400:55LAS - BFS
3 stops38h 15mMultiple Airlines
Deal found 27/3£629
Fri 25/708:20BFS - SFO
3 stops38h 28mMultiple Airlines
Fri 15/807:30SFO - BFS
3 stops20h 20mMultiple Airlines
Deal found 26/3£812
Fri 25/706:30BHD - SFO
1 stop13h 15mAir France
Fri 15/813:45SFO - BHD
1 stop19h 10mAir France
Deal found 26/3£972
Fri 12/909:30BHD - LAX
1 stop16h 05mBritish Airways
Thu 18/920:05LAX - BHD
1 stop15h 15mBritish Airways
Deal found 26/3£3,652
Fri 12/906:35BHD - LAX
2 stops25h 27mMultiple Airlines
Thu 18/909:55LAX - BHD
2 stops19h 20mMultiple Airlines
Deal found 26/3£3,678

Cheapflights Fare Finder

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 28 March 2025.
Use the filters below to find and compare flights from Northern Ireland to California that are best for you.

Fly from

Northern Ireland

Fly to

California

Route

Depart

Return

Price

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Thu 1/5

21:10-14:10

1 stop25h 00m

Los Angeles

Wed 7/5

16:30-07:50

1 stop31h 20m

£544

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 8/4

17:25-11:45

1 stop26h 20m

San Francisco

Sun 27/4

15:05-16:55

2 stops17h 50m

£580

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 8/4

20:20-13:50

1 stop25h 30m

San Francisco

Sun 27/4

23:59-12:55

2 stops28h 56m

£598

BelfastLas Vegas

BFS - LAS

BFSLAS

Belfast Intl

Thu 24/4

21:10-00:59

3 stops35h 49m

Las Vegas Harry Reid Intl

Wed 30/4

00:55-23:10

3 stops38h 15m

£629

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Fri 25/7

08:20-14:48

3 stops38h 28m

San Francisco

Fri 15/8

07:30-11:50

3 stops20h 20m

£812

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 25/7

06:30-11:45

1 stop13h 15m

San Francisco

Fri 15/8

13:45-16:55

1 stop19h 10m

£972

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Fri 12/9

09:30-17:35

1 stop16h 05m

Los Angeles

Thu 18/9

20:05-19:20

1 stop15h 15m

£3,652

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

Fri 12/9

06:35-00:02

2 stops25h 27m

Los Angeles

Thu 18/9

09:55-13:15

2 stops19h 20m

£3,678

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 13/6

07:00-19:43

2 stops20h 43m

£359

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Fri 25/7

08:20-14:48

3 stops38h 28m

£400

Flights are sorted by cheapest return flights first.

Deals found on 26/3

Showing 1-10 of 13 results
1
2

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.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to California

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 28 March 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 28 March 2025.

Crew

8.2

Comfort

7.4

Overall

7.4

Boarding

7.4

Food

7.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Florian,Feb 2025

YUL - CDG

Always a pleasure to travel with Air France. It might not be up to airline like Qatar or Singapour Airlines but I always find it reassuring flying with Air France.

Crew

8.2

Comfort

7.4

Overall

7.4

Boarding

7.4

Food

7.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Florian,Feb 2025

YUL - CDG

Always a pleasure to travel with Air France. It might not be up to airline like Qatar or Singapour Airlines but I always find it reassuring flying with Air France.

Crew

8.2

Comfort

7.4

Overall

7.4

Boarding

7.4

Food

7.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Florian,Feb 2025

YUL - CDG

Always a pleasure to travel with Air France. It might not be up to airline like Qatar or Singapour Airlines but I always find it reassuring flying with Air France.

Crew

8.2

Comfort

7.4

Overall

7.4

Boarding

7.4

Food

7.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Florian,Feb 2025

YUL - CDG

Always a pleasure to travel with Air France. It might not be up to airline like Qatar or Singapour Airlines but I always find it reassuring flying with Air France.

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.
  • 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

Browse thousands of different options on Cheapflights for your next trip

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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.

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 28 March 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£422Average£636FlexibilityNo 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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