$311+ Cheap flights from California to Northern Ireland
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from California to Northern Ireland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from California to Northern IrelandExplore 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 September 15, 2026.
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 September 15, 2026.
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:45 pm -
1 stop16h 10m
Mon 10/55:30 pm -
1 stop26h 20m
Deal found 9/11![Virgin Atlantic logo]()
$779
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 10/131:45 pm -
1 stop19h 10m
Tue 10/275:15 pm -
1 stop26h 30m
Deal found 9/11![Delta logo]()
$787
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 10/131:45 pm -
1 stop19h 10m
Fri 10/239:50 am -
2 stops22h 06m
Deal found 9/11![Delta logo]()
$797
This KLM deal was found by Cheapflights users on 9/11. 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.
Mon 9/218:25 am -
2 stops16h 55m
Mon 10/55:30 pm -
1 stop26h 20m
Deal found 9/11![KLM logo]()
$799
This Delta deal was found by Cheapflights users on 9/11. 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.
Wed 10/288:00 am -
2 stops18h 10m
Mon 11/25:15 pm -
1 stop26h 30m
Deal found 9/11![Delta logo]()
$804
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/231:50 pm -
1 stop35h 20m
Mon 11/309:40 am -
1 stop34h 05m
Deal found 9/14![Delta logo]()
$812
This KLM deal was found by Cheapflights users on 9/11. 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.
Wed 10/288:10 am -
2 stops18h 00m
Mon 11/25:15 pm -
2 stops30h 49m
Deal found 9/11![KLM logo]()
$814
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:00 am -
2 stops18h 10m
Mon 11/309:40 am -
1 stop34h 05m
Deal found 9/14![Delta logo]()
$817
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:35 pm -
1 stop14h 30m
Tue 12/86:35 am -
1 stop16h 20m
Deal found 9/15![British Airways logo]()
$839
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.
Thu 10/157:00 am -
2 stops18h 20m
Tue 10/275:15 pm -
1 stop26h 30m
Deal found 9/15![Delta logo]()
$841
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:56 am -
2 stops23h 09m
Tue 12/811:40 am -
2 stops19h 08m
Deal found 9/15![British Airways logo]()
$844
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:20 am -
2 stops28h 10m
Thu 10/298:50 am -
2 stops30h 30m
Deal found 9/13![Multiple Airlines logo]()
$846
Best flights from California to Northern IrelandDiscover carefully curated flight deals from California to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from California to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 10/131:45 pm -
1 stop19h 10m
Tue 10/275:15 pm -
1 stop26h 30m
Deal found 9/11![Delta logo]()
$787
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:10 am -
2 stops18h 00m
Mon 11/25:15 pm -
2 stops30h 49m
Deal found 9/13![KLM logo]()
$814
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:20 am -
2 stops28h 10m
Thu 10/298:50 am -
2 stops30h 30m
Deal found 9/13![Multiple Airlines logo]()
$846
This British Airways deal was found by Cheapflights users on 9/12. 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.
Wed 10/287:00 pm -
1 stop17h 05m
Mon 11/25:35 pm -
1 stop27h 50m
Deal found 9/12![British Airways logo]()
$899
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Mon 9/281:27 pm -
2 stops18h 03m
Sun 10/111:10 pm -
2 stops18h 27m
Deal found 9/12![American Airlines logo]()
$911
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 10/1310:35 am -
2 stops22h 20m
Fri 10/239:50 am -
2 stops22h 06m
Deal found 9/11![Delta logo]()
$802
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.
Wed 10/288:00 am -
2 stops18h 10m
Mon 11/25:15 pm -
1 stop26h 30m
Deal found 9/15![Delta logo]()
$804
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:25 am -
3 stops28h 20m
Sat 11/1411:00 pm -
3 stops47h 25m
Deal found 9/15![Multiple Airlines logo]()
$898
This British Airways deal was found by Cheapflights users on 9/11. 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.
Sat 10/174:35 pm -
1 stop17h 40m
Tue 10/274:55 pm -
1 stop30h 00m
Deal found 9/11![British Airways logo]()
$906
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:00 am -
2 stops18h 20m
Mon 10/265:15 pm -
1 stop26h 30m
Deal found 9/15![KLM logo]()
$914
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.
Mon 1/185:55 am -
2 stops26h 55m
Mon 1/259:40 am -
2 stops38h 52m
Deal found 9/15![Delta logo]()
$810
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:05 pm -
1 stop16h 10m
Sat 10/107:05 am -
1 stop21h 05m
Deal found 9/13![American Airlines logo]()
$990
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:26 pm -
2 stops15h 19m
Wed 10/146:30 am -
2 stops19h 14m
Deal found 9/15![British Airways logo]()
$914
This Mytrip deal was found by Cheapflights users on 9/12. 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.
Tue 10/276:30 am -
3 stops29h 20m
Tue 11/37:05 am -
3 stops23h 52m
Deal found 9/12![Multiple Airlines logo]()
$953
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:00 am -
2 stops18h 20m
Mon 10/265:15 pm -
1 stop26h 30m
Deal found 9/15![KLM logo]()
$964
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.
Mon 1/185:55 am -
2 stops26h 55m
Tue 1/269:40 am -
2 stops46h 16m
Deal found 9/15![Delta logo]()
$810
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/173:05 pm -
2 stops21h 25m
Wed 11/256:55 am -
1 stop21h 15m
Deal found 9/14![Multiple Airlines logo]()
$976
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.
Sun 1/177:15 am -
2 stops25h 35m
Wed 1/275:20 pm -
2 stops31h 37m
Deal found 9/15![Delta logo]()
$810
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/158:35 pm -
1 stop14h 35m
Sun 1/2412:00 pm -
1 stop14h 45m
Deal found 9/15![British Airways logo]()
$984
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.
Wed 1/207:15 am -
2 stops25h 35m
Wed 1/275:20 pm -
2 stops31h 37m
Deal found 9/15![Delta logo]()
$810
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:25 pm -
2 stops16h 55m
Thu 11/59:05 am -
3 stops21h 52m
Deal found 9/14![Multiple Airlines logo]()
$983
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Sun 9/2712:02 pm -
2 stops18h 33m
Thu 10/16:30 am -
2 stops19h 53m
Deal found 9/11![American Airlines logo]()
$1,207
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.
Sat 10/174:35 pm -
1 stop14h 30m
Sun 10/258:30 pm -
1 stop26h 25m
Deal found 9/14![British Airways logo]()
$1,047
This KLM deal was found by Cheapflights users on 9/11. 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.
Fri 10/162:15 pm -
2 stops18h 40m
Sat 10/245:30 pm -
2 stops30h 20m
Deal found 9/11![KLM logo]()
$1,154
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.
Mon 1/189:50 am -
2 stops23h 00m
Mon 1/255:20 pm -
2 stops30h 56m
Deal found 9/15![Delta logo]()
$810
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:20 pm -
2 stops30h 15m
Wed 11/256:55 am -
1 stop21h 15m
Deal found 9/14![Multiple Airlines logo]()
$993
This British Airways deal was found by Cheapflights users on 9/11. 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.
Thu 10/157:30 pm -
1 stop15h 55m
Sun 10/255:05 pm -
1 stop29h 50m
Deal found 9/11![British Airways logo]()
$1,048
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.
Sat 1/161:15 pm -
2 stops43h 35m
Mon 1/255:20 pm -
2 stops31h 12m
Deal found 9/15![Delta logo]()
$815
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/175:20 pm -
2 stops19h 10m
Wed 1/276:55 am -
1 stop21h 15m
Deal found 9/15![Multiple Airlines logo]()
$1,022
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.
Mon 2/16:00 am -
2 stops19h 05m
Fri 2/56:45 am -
1 stop14h 40m
Deal found 9/14![British Airways logo]()
$1,121
Last-minute flights from California to Northern IrelandDiscover last-minute flight deals from California to Northern Ireland. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from California to Northern Ireland. Data last updated September 15, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:45 pm -
1 stop16h 10m
Mon 10/55:30 pm -
1 stop26h 20m
Deal found 9/11![Virgin Atlantic logo]()
$779
This KLM deal was found by Cheapflights users on 9/11. 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.
Mon 9/218:25 am -
2 stops16h 55m
Mon 10/55:30 pm -
1 stop26h 20m
Deal found 9/11![KLM logo]()
$799
This Expedia deal was found by Cheapflights users on 9/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:40 am -
2 stops18h 40m
Mon 10/59:50 am -
2 stops38h 41m
Deal found 9/11![Multiple Airlines logo]()
$860
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 10/131:45 pm -
1 stop19h 10m
Tue 10/275:15 pm -
1 stop26h 30m
Deal found 9/11![Delta logo]()
$787
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 10/131:45 pm -
1 stop19h 10m
Fri 10/239:50 am -
2 stops22h 06m
Deal found 9/11![Delta logo]()
$797
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.
Wed 10/147:30 pm -
1 stop17h 05m
Mon 10/267:40 pm -
1 stop27h 15m
Deal found 9/14![British Airways logo]()
$855
This British Airways deal was found by Cheapflights users on 9/11. 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.
Wed 10/144:35 pm -
1 stop15h 05m
Tue 10/2711:40 am -
1 stop35h 15m
Deal found 9/11![British Airways logo]()
$856
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.
Thu 10/157:00 am -
2 stops18h 20m
Tue 10/275:15 pm -
1 stop26h 30m
Deal found 9/15![Delta logo]()
$841
This Delta deal was found by Cheapflights users on 9/11. 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.
Thu 10/1512:05 pm -
2 stops20h 50m
Fri 10/239:50 am -
2 stops22h 06m
Deal found 9/11![Delta logo]()
$852
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:20 am -
2 stops28h 10m
Thu 10/298:50 am -
2 stops30h 30m
Deal found 9/13![Multiple Airlines logo]()
$846
This Delta deal was found by Cheapflights users on 9/11. 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.
Wed 10/288:00 am -
2 stops18h 10m
Mon 11/25:15 pm -
1 stop26h 30m
Deal found 9/11![Delta logo]()
$804
This KLM deal was found by Cheapflights users on 9/11. 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.
Wed 10/288:10 am -
2 stops18h 00m
Mon 11/25:15 pm -
2 stops30h 49m
Deal found 9/11![KLM logo]()
$814
One-way flights from California to Northern IrelandSearch for one-way flight options from California to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from California to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/108:50 pm -
1 stop14h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![British Airways logo]()
$311
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/164:40 pm -
2 stops43h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$312
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:13 pm -
3 stops46h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$327
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:13 pm -
3 stops48h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$329
This KAYAK deal was found by Cheapflights users on 9/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/104:33 pm -
2 stops16h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![British Airways logo]()
$353
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:13 pm -
3 stops47h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$363
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:13 pm -
3 stops46h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$368
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:20 pm -
2 stops30h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$379
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:20 am -
3 stops45h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$383
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:20 pm -
2 stops41h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$389
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:03 am -
3 stops49h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/1011:10 pm -
3 stops50h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$405
Find 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 September 15, 2026.
Round-trip from | $787 (Delta) |
|---|---|
One-way from | $311 |
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 7,457,451 searches. Data last updated September 15, 2026.
Use the filters below to find and compare flights from California to Northern Ireland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Los AngelesBelfast
LAX Los Angeles - BHD Belfast City
LAXBHD
Los Angeles
Sun 1/10
6:00 pm-4:50 pm
1 stop14h 50m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$323
San FranciscoBelfast
SFO San Francisco - BFS Belfast Intl
SFOBFS
San Francisco
Wed 11/18
12:13 pm-6:55 pm
3 stops46h 42m
Belfast Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$327
San FranciscoBelfast
SFO San Francisco - BFS Belfast Intl
SFOBFS
San Francisco
Tue 11/17
12:13 pm-8:45 pm
3 stops48h 32m
Belfast Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$329
Santa AnaBelfast
SNA Santa Ana J. Wayne/Orange Cnty - BHD Belfast City
SNABHD
Santa Ana J. Wayne/Orange Cnty
Sun 1/10
4:33 pm-4:50 pm
2 stops16h 17m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$353
San FranciscoBelfast
SFO San Francisco - BHD Belfast City
SFOBHD
San Francisco
Tue 11/17
12:13 pm-7:00 pm
3 stops46h 47m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$368
San FranciscoBelfast
SFO San Francisco - BFS Belfast Intl
SFOBFS
San Francisco
Mon 11/16
4:40 pm-8:55 pm
3 stops44h 15m
Belfast Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$374
Los AngelesBelfast
LAX Los Angeles - BFS Belfast Intl
LAXBFS
Los Angeles
Sun 10/4
10:20 am-4:15 pm
3 stops45h 55m
Belfast Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$383
Los AngelesBelfast
LAX Los Angeles - BHD Belfast City
LAXBHD
Los Angeles
Sun 10/4
7:03 am-4:50 pm
3 stops49h 47m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$396
Los AngelesBelfast
LAX Los Angeles - BFS Belfast Intl
LAXBFS
Los Angeles
Sun 1/10
11:10 pm-10:05 am
3 stops50h 55m
Belfast Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$405
Los AngelesBelfast
LAX Los Angeles - BHD Belfast City
LAXBHD
Los Angeles
Fri 12/25
2:20 pm-8:35 pm
3 stops46h 15m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$433
Showing 1-10 of 56 resultsSorted by cheapest first
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.
SFO-BHD
LAX-BHD
LAX-BFS
SFO-BFS
OAK-BHD
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
USCA-GBNIR
SFO-BHD
LAX-BHD
LAX-BFS
SFO-BFS
No data available for this route at this time. Please check back soon.
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 September 15, 2026.
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.
Boarding
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
Overall
6.7
Comfort
6.8
Reviews
1 / 20
8.0
ExcellentLakshmi,Dec 2025
SFO - LHR
Boarding
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
Overall
6.7
Comfort
6.8
Reviews
1 / 20
8.0
ExcellentLakshmi,Dec 2025
SFO - LHR
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.
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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.
Complete your trip
Complete your trip to Northern Ireland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from California to Northern Ireland by cabin class
Find flights from California to Northern Ireland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
California and Northern Ireland flights
Browse other California and Northern Ireland flight options. Last updated on September 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Northern Ireland
Find the right flight back to California after your stay in Northern Ireland
California to Northern Ireland flights
Consider these flights traveling from California to Northern Ireland.
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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$583 | Average$949 | FlexibilityNo cancel fee | On-time70% |