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$466+ Cheap flights from Northern Ireland to California

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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LAX
avr. 27 — mai 41
dim. 4/27
dim. 5/4
1 adult, Economy
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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 avril 22, 2025.

Round-trip from

$620
(TravelUp)

One-way from

$466
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$730
From Northern Ireland to California
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One-way flight from Northern Ireland to California
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Highest demand for flights based on searches. 12% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($54 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 avril 22, 2025.

This TravelUp deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/29:30 amBHD - LAX
1 stop16h 05mBritish Airways
ven. 5/98:05 pmLAX - BHD
1 stop16h 40mBritish Airways
Deal found 4/22$620
This Norse deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/26:05 amBFS - LAX
1 stop16h 05mMultiple Airlines
ven. 5/94:30 pmLAX - BFS
1 stop32h 55mMultiple Airlines
Deal found 4/22$653
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/26:30 amBHD - LAX
2 stops20h 26mDelta
ven. 5/912:00 pmLAX - BHD
2 stops20h 55mDelta
Deal found 4/22$670
This Travelocity deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/311:30 amBHD - SFO
1 stop15h 15mBritish Airways
lun. 12/85:30 pmSFO - BHD
1 stop14h 45mBritish Airways
Deal found 4/22$675
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/36:30 amBHD - SFO
1 stop13h 20mDelta
lun. 12/88:55 amSFO - BHD
2 stops23h 55mDelta
Deal found 4/22$759
This TravelUp deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/196:30 amBHD - LAX
2 stops19h 50mKLM
dim. 11/231:45 pmLAX - BHD
1 stop23h 15mKLM
Deal found 4/22$784
This American Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/206:50 amBHD - SFO
1 stop15h 00mAmerican Airlines
ven. 9/57:20 pmSFO - BHD
1 stop14h 55mAmerican Airlines
Deal found 4/22$808
This Mytrip deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/27:00 amBHD - LAX
1 stop15h 10mMultiple Airlines
jeu. 5/812:35 amLAX - BHD
3 stops29h 05mMultiple Airlines
Deal found 4/22$911
This TravelUp deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/26:30 amBHD - ONT
2 stops18h 03mKLM
ven. 5/94:57 pmONT - BHD
2 stops15h 58mKLM
Deal found 4/22$1,346

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated avril 22, 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

BHD - LAX

BHDLAX

Belfast City

ven. 5/2

9:30 am-5:35 pm

1 stop16h 05m

Los Angeles

ven. 5/9

8:05 pm-8:45 pm

1 stop16h 40m

$620

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

ven. 5/2

6:05 am-2:10 pm

1 stop16h 05m

Los Angeles

ven. 5/9

4:30 pm-9:25 am

1 stop32h 55m

$653

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

ven. 5/2

6:30 am-6:56 pm

2 stops20h 26m

Los Angeles

ven. 5/9

12:00 pm-4:55 pm

2 stops20h 55m

$670

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

mer. 8/20

11:30 am-10:19 pm

2 stops18h 49m

San Francisco

ven. 9/5

4:35 pm-3:30 pm

1 stop14h 55m

$795

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

mer. 8/20

6:30 am-4:00 pm

2 stops17h 30m

San Francisco

ven. 9/5

5:15 pm-9:15 pm

2 stops20h 00m

$802

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

mer. 8/20

6:50 am-1:50 pm

1 stop15h 00m

San Francisco

ven. 9/5

7:20 pm-6:15 pm

1 stop14h 55m

$808

BelfastLos Angeles

BHD - LAX

BHDLAX

Belfast City

ven. 5/2

7:00 am-2:10 pm

1 stop15h 10m

Los Angeles

jeu. 5/8

12:35 am-1:40 pm

3 stops29h 05m

$911

BelfastOntario

BHD - ONT

BHDONT

Belfast City

ven. 5/2

6:30 am-4:33 pm

2 stops18h 03m

Ontario

ven. 5/9

4:57 pm-4:55 pm

2 stops15h 58m

$1,346

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

mar. 7/29

10:55 pm-9:25 pm

3 stops30h 30m

$466

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

mar. 8/5

9:35 am-10:30 pm

2 stops20h 55m

$1,083

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 13 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 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 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 $246). Flying from Northern Ireland to California in June is currently the most expensive (average of $328). 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.

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 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit California when rainfall is around 0.0 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 avril 22, 2025.
Read reviews from past customers who have flown Delta, KLM and American Airlines from Northern Ireland to California. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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
Aer Lingus
7.0
Good
1,067 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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
British Airways
6.6
Okay
6,794 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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?

    The cheapest airlines for a one-way flight from Northern Ireland to California are British Airways ($1,083), Aer Lingus ($1,185), and KLM ($1,848).

  • 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 vacation 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 $246). Flying from Northern Ireland to California in June is currently the most expensive (average of $328). 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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