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Northern Ireland

$329+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
nov. 28 — dic. 51
vie. 11/28
vie. 12/5
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 octubre 29, 2025.

Round-trip from

$610
(Ticket)

One-way from

$329
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$633
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. 19% potential increase in price ($212 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 October 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 octubre 29, 2025.

This Ticket deal was found by Cheapflights users on 10/27. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/101:45 pmLAX - BHD
1 stop23h 15mVirgin Atlantic
mar. 11/256:30 amBHD - LAX
2 stops24h 21mVirgin Atlantic
Deal found 10/27$610
This Ticket deal was found by Cheapflights users on 10/27. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/101:45 pmLAX - BHD
1 stop19h 05mMultiple Airlines
mar. 11/255:20 pmBHD - LAX
1 stop26h 25mMultiple Airlines
Deal found 10/27$645
This Iberia deal was found by Cheapflights users on 10/28. 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.
dom. 12/78:00 amSFO - BHD
2 stops18h 20mMultiple Airlines
dom. 12/149:10 amBHD - SFO
1 stop13h 50mMultiple Airlines
Deal found 10/28$669
This American Airlines deal was found by Cheapflights users on 10/28. 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. 10/301:19 pmSFO - BHD
2 stops17h 41mAmerican Airlines
jue. 11/66:35 amBHD - SFO
2 stops19h 51mAmerican Airlines
Deal found 10/28$677
This Virgin Atlantic deal was found by Cheapflights users on 10/27. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/31:55 pmSFO - BHD
1 stop23h 05mVirgin Atlantic
dom. 12/76:30 amBHD - SFO
1 stop13h 20mVirgin Atlantic
Deal found 10/27$685
This Delta deal was found by Cheapflights users on 10/27. 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. 11/135:55 amOAK - BHD
2 stops31h 05mDelta
lun. 11/175:20 pmBHD - OAK
2 stops38h 43mDelta
Deal found 10/27$699
This Delta deal was found by Cheapflights users on 10/28. 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.
sáb. 11/156:00 amSFO - BHD
2 stops26h 50mDelta
sáb. 11/226:30 amBHD - SFO
1 stop13h 20mDelta
Deal found 10/28$718
This Delta deal was found by Cheapflights users on 10/28. 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.
sáb. 11/159:49 amSFO - BHD
2 stops23h 01mDelta
dom. 11/236:30 amBHD - SFO
2 stops19h 39mDelta
Deal found 10/28$728
This Delta deal was found by Cheapflights users on 10/28. 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.
mar. 11/256:00 amSFO - BHD
2 stops26h 50mDelta
mar. 12/26:30 amBHD - SFO
1 stop13h 20mDelta
Deal found 10/28$746
This KLM deal was found by Cheapflights users on 10/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/129:03 amSJC - BHD
2 stops23h 47mKLM
dom. 11/165:20 pmBHD - SJC
2 stops34h 02mKLM
Deal found 10/27$751
This Air France deal was found by Cheapflights users on 10/28. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/251:55 pmSFO - BHD
1 stop18h 55mMultiple Airlines
mar. 12/25:20 pmBHD - SFO
1 stop26h 30mMultiple Airlines
Deal found 10/28$782
This KLM deal was found by Cheapflights users on 10/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/303:00 pmSFO - BHD
2 stops18h 50mKLM
jue. 11/66:30 amBHD - SFO
1 stop13h 20mKLM
Deal found 10/28$807

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 octubre 29, 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

lun. 11/10

7:30 am-4:50 pm

2 stops25h 20m

Belfast City

mar. 11/25

6:30 am-8:47 pm

2 stops22h 17m

$614

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

mar. 3/24

6:30 pm-6:40 pm

1 stop17h 10m

Belfast City

mar. 3/31

6:35 am-1:50 pm

1 stop15h 15m

$639

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

lun. 11/10

1:45 pm-4:50 pm

1 stop19h 05m

Belfast City

mar. 11/25

5:20 pm-11:45 am

1 stop26h 25m

$645

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

mar. 3/24

10:24 am-11:30 am

2 stops18h 06m

Belfast City

mar. 3/31

6:35 am-6:42 pm

2 stops20h 07m

$657

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

vie. 1/23

9:00 pm-7:15 pm

1 stop14h 15m

Belfast City

mar. 2/3

8:45 am-6:30 pm

1 stop17h 45m

$666

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

dom. 12/7

8:00 am-10:20 am

2 stops18h 20m

Belfast City

dom. 12/14

9:10 am-3:00 pm

1 stop13h 50m

$669

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

mié. 12/3

1:55 pm-4:50 pm

1 stop18h 55m

Belfast City

dom. 12/7

5:20 pm-11:50 am

1 stop26h 30m

$685

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

mar. 11/25

3:30 pm-4:45 pm

2 stops17h 15m

Belfast City

mar. 12/2

6:35 am-6:24 pm

2 stops19h 49m

$689

OaklandBelfast

OAK - BHD

OAKBHD

Oakland

jue. 11/13

5:55 am-4:50 pm

2 stops26h 55m

Belfast City

lun. 11/17

5:20 pm-4:11 pm

2 stops30h 51m

$699

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

jue. 4/2

9:05 am-9:20 pm

2 stops28h 15m

Belfast City

lun. 4/6

5:25 pm-9:49 pm

2 stops36h 24m

$725

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 45 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, March is the cheapest month in which you can book a flight from California to Northern Ireland (average of $586). Flying from California to Northern Ireland in June is currently the most expensive (average of $907). 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 octubre 29, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 17% on flights from California to Northern Ireland by exploring options for tickets in the morning.

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 octubre 29, 2025.
Peruse reviews from past customers who have flown with 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.
British Airways
6.7
Okay
7,485 reviews

Entertainment

6.4

Boarding

6.9

Food

6.3

Overall

6.7

Comfort

6.7

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,485 reviews
British Airways
6.7
Okay
7,485 reviews

Entertainment

6.4

Boarding

6.9

Food

6.3

Overall

6.7

Comfort

6.7

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

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 17h 10m. Virgin Atlantic provides one of the quickest options available for as low as $639. The distance between California and Northern Ireland is about 5038 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, March is the cheapest month in which you can book a flight from California to Northern Ireland (average of $586). Flying from California to Northern Ireland in June is currently the most expensive (average of $907). 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 airline flying from California to Northern Ireland

Discover the top airline 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 octubre 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$599Average$872FlexibilityNo cancel feeOn-time70%

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