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Northern Ireland

$280+ Cheap flights from California to Northern Ireland

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
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Cheap flight deals from California to Northern Ireland

Keep the following information in mind while searching for California to Northern Ireland flight deals. Data was last updated septiembre 16, 2025.

Round-trip from

$579
(Gurufare)

One-way from

$280
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$923
From California to Northern Ireland
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One-way flight from California to Northern Ireland
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Highest demand for flights based on searches. 18% potential increase in price ($216 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from California to Northern Ireland

Cheapest flights from California to Northern Ireland
Explore the most affordable flight options available from California to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/14. 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.
mié. 10/151:25 pmLAX - BHD
1 stop16h 05mAmerican Airlines
jue. 10/236:35 amBHD - LAX
1 stop19h 30mAmerican Airlines
Deal found 9/14$580
This American Airlines deal was found by Cheapflights users on 9/14. 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.
jue. 10/169:30 pmLAX - BHD
1 stop13h 50mAmerican Airlines
jue. 10/236:35 amBHD - LAX
1 stop19h 30mAmerican Airlines
Deal found 9/14$631
This American Airlines deal was found by Cheapflights users on 9/14. 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.
lun. 11/38:35 amLAX - BHD
2 stops18h 05mAmerican Airlines
sáb. 11/156:35 amBHD - LAX
1 stop21h 50mAmerican Airlines
Deal found 9/14$636
This Iberia deal was found by Cheapflights users on 9/15. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/3010:00 pmLAX - BHD
1 stop15h 30mMultiple Airlines
jue. 11/611:05 amBHD - LAX
2 stops19h 03mMultiple Airlines
Deal found 9/15$642
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/39:00 pmLAX - BHD
1 stop15h 15mBritish Airways
sáb. 11/156:35 amBHD - LAX
1 stop19h 55mBritish Airways
Deal found 9/14$689
This Delta deal was found by Cheapflights users on 9/15. 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.
jue. 10/309:59 amLAX - BHD
2 stops23h 51mDelta
jue. 11/66:30 amBHD - LAX
2 stops23h 19mDelta
Deal found 9/15$696
This British Airways deal was found by Cheapflights users on 9/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/35:30 pmSFO - BHD
1 stop15h 05mBritish Airways
dom. 12/73:10 pmBHD - SFO
1 stop35h 35mBritish Airways
Deal found 9/14$697
This Delta deal was found by Cheapflights users on 9/15. 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.
mié. 12/31:55 pmSFO - BHD
1 stop23h 05mDelta
dom. 12/76:30 amBHD - SFO
1 stop13h 20mDelta
Deal found 9/15$700
This FlightHub deal was found by Cheapflights users on 9/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/164:36 pmLAX - BHD
2 stops18h 44mBritish Airways
jue. 10/2312:40 pmBHD - LAX
2 stops18h 19mBritish Airways
Deal found 9/14$721
This Delta deal was found by Cheapflights users on 9/13. 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.
vie. 12/511:55 amSFO - BHD
2 stops20h 55mDelta
mar. 12/96:30 amBHD - SFO
2 stops17h 27mDelta
Deal found 9/13$736
This Delta deal was found by Cheapflights users on 9/15. 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.
vie. 10/175:09 pmSNA - BHD
2 stops20h 06mDelta
mar. 10/216:30 amBHD - SNA
2 stops23h 47mDelta
Deal found 9/15$736
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/218:05 pmLAX - BFS
1 stop19h 05mMultiple Airlines
mar. 10/286:00 amBFS - LAX
1 stop20h 30mMultiple Airlines
Deal found 9/15$737

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Northern Ireland 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 septiembre 16, 2025.
Use the filters below to find and compare flights from California to Northern Ireland that are best for you.

Fly from

California

Fly to

Northern Ireland

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

dom. 3/15

10:00 pm-6:40 pm

1 stop13h 40m

Belfast City

vie. 3/27

11:30 am-7:25 pm

1 stop14h 55m

$584

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

dom. 3/15

10:00 pm-6:40 pm

1 stop13h 40m

Belfast City

lun. 3/23

5:45 pm-2:30 pm

1 stop27h 45m

$584

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

dom. 3/15

7:00 pm-4:50 pm

1 stop14h 50m

Belfast City

mar. 3/24

11:25 am-7:30 pm

1 stop15h 05m

$584

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

dom. 3/15

7:00 pm-4:50 pm

1 stop14h 50m

Belfast City

mié. 3/25

5:40 pm-2:30 pm

1 stop27h 50m

$584

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

mié. 10/15

11:30 am-11:55 am

2 stops16h 25m

Belfast City

jue. 10/23

12:40 pm-8:15 pm

1 stop15h 35m

$585

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

vie. 1/23

3:30 pm-2:15 pm

1 stop14h 45m

Belfast City

mar. 2/3

11:25 am-6:30 pm

1 stop15h 05m

$629

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

jue. 10/16

9:30 pm-7:20 pm

1 stop13h 50m

Belfast City

jue. 10/23

6:35 am-6:05 pm

1 stop19h 30m

$631

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

sáb. 3/14

10:00 pm-7:40 pm

1 stop14h 40m

Belfast City

mié. 3/25

12:25 pm-7:30 pm

1 stop14h 05m

$634

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

jue. 3/12

10:00 pm-6:50 pm

1 stop13h 50m

Belfast City

lun. 3/23

7:25 pm-2:30 pm

1 stop26h 05m

$634

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

vie. 12/5

8:40 pm-7:15 pm

1 stop14h 35m

Belfast City

mar. 12/9

6:35 am-3:00 pm

1 stop16h 25m

$697

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 43 results
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Best time to book a flight from California to Northern Ireland

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

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

Currently, February is the cheapest month in which you can book a flight from California to Northern Ireland (average of $657). Flying from California to Northern Ireland in June is currently the most expensive (average of $1,189). 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 CA to NIR?

Find hourly flight availability from California to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 16, 2025.

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

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated septiembre 16, 2025.
Peruse reviews from past customers who have flown with American Airlines and British Airways from California to Northern Ireland to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Overall

7.2

Food

6.4

Crew

8.0

Comfort

7.2

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Overall

7.2

Food

6.4

Crew

8.0

Comfort

7.2

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
British Airways
6.7
Okay
7,363 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Overall

7.2

Food

6.4

Crew

8.0

Comfort

7.2

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

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

    A quick flight from California to Northern Ireland can take about 13h 40m. British Airways provides one of the quickest options available for as low as $584. The distance between California and Northern Ireland is about 5128 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from California to Northern Ireland (average of $657). Flying from California to Northern Ireland in June is currently the most expensive (average of $1,189). 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 California to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from California to Northern Ireland

Discover the top 2 airlines that operate flights from California to Northern Ireland. 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 2,558,603 searches. Data last updated septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$588Average$796FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$635Average$845FlexibilityNo cancel feeOn-time71%

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