$360+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
Jul 31 — Aug 71
Round-trip
1 adult, Economy
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Find cheap flights from California to Northern Ireland with Cheapflights
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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 July 1, 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 July 1, 2026.
This Expedia deal was found by Cheapflights users on 6/29. 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 11/46:00 pm
LAX
- BHD
1 stop14h 35m
British Airways
Wed 11/119:15 am
BHD
- LAX
1 stop14h 35m
British Airways
Deal found 6/29![British Airways logo]()
$836
This Priceline deal was found by Cheapflights users on 6/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/255:32 pm
LAX
- BHD
2 stops18h 08m
British Airways
Mon 11/26:35 am
BHD
- LAX
2 stops19h 22m
British Airways
Deal found 6/28![British Airways logo]()
$850
This British Airways deal was found by Cheapflights users on 6/30. 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 11/25:25 pm
SFO
- BHD
1 stop14h 40m
British Airways
Fri 11/136:45 am
BHD
- SFO
1 stop16h 10m
British Airways
Deal found 6/30![British Airways logo]()
$870
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Wed 9/167:30 am
LAX
- BHD
3 stops23h 00m
Multiple Airlines
Wed 9/236:50 pm
BHD
- LAX
2 stops31h 35m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$876
This oojo deal was found by Cheapflights users on 6/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:20 pm
LAX
- BHD
1 stop28h 10m
British Airways
Mon 11/25:45 pm
BHD
- LAX
1 stop30h 05m
British Airways
Deal found 6/28![British Airways logo]()
$880
This Priceline deal was found by Cheapflights users on 6/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/189:00 pm
LAX
- BHD
1 stop13h 45m
Multiple Airlines
Sat 10/247:05 pm
BHD
- LAX
1 stop34h 10m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$885
This FlightHub deal was found by Cheapflights users on 6/30. 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.
Wed 11/42:12 pm
SFO
- BHD
2 stops16h 23m
British Airways
Tue 11/108:45 am
BHD
- SFO
1 stop14h 10m
British Airways
Deal found 6/30![British Airways logo]()
$886
This Expedia deal was found by Cheapflights users on 6/29. 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.
Fri 11/63:30 pm
LAX
- BHD
1 stop14h 45m
British Airways
Fri 11/138:45 am
BHD
- LAX
1 stop15h 05m
British Airways
Deal found 6/29![British Airways logo]()
$886
This Delta deal was found by Cheapflights users on 6/30. 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 11/167:00 am
SFO
- BHD
2 stops18h 10m
Delta
Tue 11/249:40 am
BHD
- SFO
1 stop34h 05m
Delta
Deal found 6/30![Delta logo]()
$893
This FlightHub deal was found by Cheapflights users on 6/30. 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.
Wed 11/189:12 am
SFO
- BHD
2 stops17h 03m
British Airways
Wed 11/259:15 am
BHD
- SFO
2 stops20h 57m
British Airways
Deal found 6/30![British Airways logo]()
$894
This Delta deal was found by Cheapflights users on 6/30. 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 11/81:50 pm
SFO
- BHD
1 stop35h 20m
Delta
Fri 11/139:40 am
BHD
- SFO
2 stops23h 10m
Delta
Deal found 6/30![Delta logo]()
$898
This Cheapflightsfares deal was found by Cheapflights users on 6/30. 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.
Thu 11/58:35 pm
SFO
- BHD
1 stop15h 55m
British Airways
Wed 11/1112:25 pm
BHD
- SFO
1 stop14h 10m
British Airways
Deal found 6/30![British Airways logo]()
$900
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 July 1, 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 July 1, 2026.
This British Airways deal was found by Cheapflights users on 6/30. 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.
Tue 11/38:35 pm
SFO
- BHD
1 stop15h 35m
British Airways
Fri 11/1311:30 am
BHD
- SFO
1 stop15h 05m
British Airways
Deal found 6/30![British Airways logo]()
$870
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/211:00 pm
LAX
- BFS
2 stops40h 20m
Multiple Airlines
Tue 8/181:35 pm
BFS
- LAX
1 stop35h 55m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$924
This American Airlines deal was found by Cheapflights users on 6/28. 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.
Wed 10/2810:45 am
LAX
- BHD
2 stops16h 30m
American Airlines
Mon 11/29:25 am
BHD
- LAX
2 stops19h 33m
American Airlines
Deal found 6/28![American Airlines logo]()
$944
This Delta deal was found by Cheapflights users on 6/29. 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 8/21:50 pm
LAX
- BHD
1 stop19h 05m
Delta
Tue 8/185:30 pm
BHD
- LAX
1 stop26h 20m
Delta
Deal found 6/29![Delta logo]()
$954
This Cheapflightsfares deal was found by Cheapflights users on 7/1. 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 9/94:35 pm
SFO
- BHD
1 stop15h 05m
British Airways
Thu 9/176:30 am
BHD
- SFO
1 stop15h 20m
British Airways
Deal found 7/1![British Airways logo]()
$903
This American Airlines deal was found by Cheapflights users on 7/1. 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 10/2510:45 am
LAX
- BHD
2 stops16h 35m
American Airlines
Mon 11/29:25 am
BHD
- LAX
2 stops20h 26m
American Airlines
Deal found 7/1![American Airlines logo]()
$944
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Mon 8/311:10 am
SFO
- BFS
3 stops27h 15m
Multiple Airlines
Tue 8/1810:45 pm
BFS
- SFO
3 stops31h 10m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$954
This Delta deal was found by Cheapflights users on 6/29. 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 8/47:00 am
LAX
- BHD
2 stops18h 20m
Delta
Tue 8/185:30 pm
BHD
- LAX
1 stop26h 20m
Delta
Deal found 6/29![Delta logo]()
$958
This oojo deal was found by Cheapflights users on 6/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:00 pm
LAX
- BHD
1 stop15h 15m
British Airways
Mon 11/25:45 pm
BHD
- LAX
1 stop27h 45m
British Airways
Deal found 6/28![British Airways logo]()
$904
This American Airlines deal was found by Cheapflights users on 6/29. 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.
Wed 9/91:27 pm
SFO
- BHD
2 stops18h 13m
American Airlines
Sun 9/201:10 pm
BHD
- SFO
2 stops19h 10m
American Airlines
Deal found 6/29![American Airlines logo]()
$954
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Mon 8/38:15 am
LAX
- BFS
3 stops30h 50m
Multiple Airlines
Wed 8/196:15 am
BFS
- LAX
3 stops38h 10m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$965
This British Airways deal was found by Cheapflights users on 6/29. 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 12/28:35 pm
SFO
- BHD
1 stop15h 40m
British Airways
Sun 12/66:30 am
BHD
- SFO
1 stop20h 05m
British Airways
Deal found 6/29![British Airways logo]()
$919
This KLM deal was found by Cheapflights users on 6/27. 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.
Fri 8/285:05 pm
ONT
- BHD
2 stops15h 50m
KLM
Tue 9/89:50 am
BHD
- ONT
2 stops18h 17m
KLM
Deal found 6/27![KLM logo]()
$2,328
This Mytrip deal was found by Cheapflights users on 6/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:30 am
LAX
- BFS
2 stops24h 45m
Multiple Airlines
Thu 9/2410:15 am
BFS
- LAX
2 stops30h 05m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$991
This American Airlines deal was found by Cheapflights users on 6/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:00 am
LAX
- BHD
2 stops17h 10m
American Airlines
Wed 10/710:05 am
BHD
- LAX
2 stops18h 27m
American Airlines
Deal found 6/27![American Airlines logo]()
$998
This British Airways deal was found by Cheapflights users on 6/30. 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.
Sun 11/88:35 pm
SFO
- BHD
1 stop14h 05m
British Airways
Sat 11/146:35 am
BHD
- SFO
1 stop16h 20m
British Airways
Deal found 6/30![British Airways logo]()
$920
This Delta deal was found by Cheapflights users on 6/26. 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 7/266:15 am
LAX
- BHD
2 stops19h 05m
Delta
Sun 8/29:50 am
BHD
- LAX
2 stops21h 25m
Delta
Deal found 6/26![Delta logo]()
$1,134
This British Airways deal was found by Cheapflights users on 6/30. 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 11/195:25 pm
SFO
- BHD
1 stop15h 15m
British Airways
Mon 11/237:25 pm
BHD
- SFO
1 stop27h 30m
British Airways
Deal found 6/30![British Airways logo]()
$920
This Mytrip deal was found by Cheapflights users on 6/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:30 am
LAX
- BFS
3 stops27h 25m
Multiple Airlines
Wed 10/77:30 am
BFS
- LAX
3 stops41h 20m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,023
This British Airways deal was found by Cheapflights users on 6/30. 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 11/68:35 pm
SFO
- BHD
1 stop14h 35m
British Airways
Tue 11/108:45 am
BHD
- SFO
1 stop14h 10m
British Airways
Deal found 6/30![British Airways logo]()
$920
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Sat 8/157:30 am
LAX
- BFS
3 stops27h 25m
Multiple Airlines
Sat 8/229:40 pm
BFS
- LAX
2 stops23h 15m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$1,040
This Trip.com deal was found by Cheapflights users on 6/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/254:43 pm
LAX
- BHD
2 stops17h 27m
British Airways
Mon 10/511:35 am
BHD
- LAX
1 stop14h 50m
British Airways
Deal found 6/27![British Airways logo]()
$925
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Thu 11/57:55 pm
SFO
- BFS
1 stop18h 00m
Multiple Airlines
Wed 11/116:25 am
BFS
- SFO
2 stops21h 10m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$1,048
This Priceline deal was found by Cheapflights users on 6/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/291:05 pm
ONT
- BHD
2 stops35h 45m
British Airways
Fri 10/912:00 pm
BHD
- ONT
2 stops29h 29m
British Airways
Deal found 6/27![British Airways logo]()
$932
This Mytrip deal was found by Cheapflights users on 6/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:15 am
LAX
- BFS
2 stops27h 10m
Multiple Airlines
Wed 8/196:15 am
BFS
- LAX
2 stops20h 10m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,061
This oojo deal was found by Cheapflights users on 6/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:30 pm
SFO
- BHD
1 stop16h 20m
British Airways
Sun 9/203:50 pm
BHD
- SFO
1 stop30h 00m
British Airways
Deal found 6/26![British Airways logo]()
$937
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Wed 9/98:30 am
SFO
- BFS
2 stops24h 35m
Multiple Airlines
Thu 9/1710:45 pm
BFS
- SFO
2 stops25h 05m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$1,085
This British Airways deal was found by Cheapflights users on 7/1. 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 9/1612:01 pm
LAX
- BHD
2 stops17h 34m
British Airways
Wed 9/2310:05 am
BHD
- LAX
1 stop16h 15m
British Airways
Deal found 7/1![British Airways logo]()
$941
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Sat 10/245:40 pm
SFO
- BFS
2 stops20h 55m
Multiple Airlines
Sat 10/317:35 pm
BFS
- SFO
3 stops31h 00m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$1,099
This British Airways deal was found by Cheapflights users on 6/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:20 am
LAX
- BHD
2 stops17h 45m
British Airways
Wed 9/166:30 am
BHD
- LAX
2 stops18h 58m
British Airways
Deal found 6/28![British Airways logo]()
$1,000
Last-minute flights from California to Northern IrelandDiscover last-minute flight deals from California to Northern Ireland. Data last updated July 1, 2026 and is based on user searches.
Discover last-minute flight deals from California to Northern Ireland. Data last updated July 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/211:00 pm
LAX
- BFS
2 stops40h 20m
Multiple Airlines
Tue 8/181:35 pm
BFS
- LAX
1 stop35h 55m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$924
This Delta deal was found by Cheapflights users on 6/29. 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 8/21:50 pm
LAX
- BHD
1 stop19h 05m
Delta
Tue 8/185:30 pm
BHD
- LAX
1 stop26h 20m
Delta
Deal found 6/29![Delta logo]()
$954
This Expedia deal was found by Cheapflights users on 6/29. 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.
Sun 8/28:05 am
LAX
- BHD
2 stops17h 15m
Multiple Airlines
Tue 8/185:30 pm
BHD
- LAX
2 stops29h 34m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$1,017
This Iberia deal was found by Cheapflights users on 6/30. 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.
Mon 8/33:50 pm
LAX
- BHD
1 stop13h 05m
Multiple Airlines
Wed 8/1911:35 am
BHD
- LAX
2 stops19h 08m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$948
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Mon 8/311:10 am
SFO
- BFS
3 stops27h 15m
Multiple Airlines
Tue 8/1810:45 pm
BFS
- SFO
3 stops31h 10m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$954
This KLM deal was found by Cheapflights users on 6/30. 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 8/31:50 pm
LAX
- BHD
1 stop35h 30m
KLM
Wed 8/195:30 pm
BHD
- LAX
1 stop29h 15m
KLM
Deal found 6/30![KLM logo]()
$957
This Delta deal was found by Cheapflights users on 6/30. 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 8/36:40 am
LAX
- BHD
2 stops18h 40m
Delta
Wed 8/199:50 am
BHD
- LAX
2 stops22h 06m
Delta
Deal found 6/30![Delta logo]()
$962
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Mon 8/38:15 am
LAX
- BFS
3 stops30h 50m
Multiple Airlines
Wed 8/196:15 am
BFS
- LAX
3 stops38h 10m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$965
This oojo deal was found by Cheapflights users on 6/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:05 pm
LAX
- BHD
1 stop16h 30m
British Airways
Tue 8/188:25 pm
BHD
- LAX
1 stop23h 20m
British Airways
Deal found 6/29![British Airways logo]()
$931
This Delta deal was found by Cheapflights users on 6/29. 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 8/46:00 am
LAX
- BHD
2 stops19h 20m
Delta
Tue 8/189:50 am
BHD
- LAX
2 stops22h 51m
Delta
Deal found 6/29![Delta logo]()
$1,024
This Cheapflightsfares deal was found by Cheapflights users on 6/29. 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.
Thu 8/138:55 pm
LAX
- BHD
1 stop15h 40m
British Airways
Thu 8/209:35 am
BHD
- LAX
1 stop16h 45m
British Airways
Deal found 6/29![British Airways logo]()
$963
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Sat 8/157:30 am
LAX
- BFS
3 stops27h 25m
Multiple Airlines
Sat 8/229:40 pm
BFS
- LAX
2 stops23h 15m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$1,040
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 July 1, 2026.
Search for one-way flight options from California to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 8/186:00 am
SFO
- BFS
3 stops29h 50m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 8/186:00 am
SFO
- BHD
3 stops28h 00m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$395
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:30 pm
LAX
- BFS
3 stops31h 20m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:30 pm
LAX
- BHD
3 stops35h 10m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Fri 7/317:08 pm
SFO
- BHD
3 stops53h 07m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$437
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Fri 7/317:08 pm
SFO
- BFS
3 stops52h 37m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Thu 7/98:10 pm
LAX
- BHD
2 stops33h 35m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$447
This Cheapflightsfares deal was found by Cheapflights users on 7/1. 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.
Tue 8/185:40 pm
SFO
- BHD
2 stops18h 25m
Aer Lingus
Deal found 7/1![Aer Lingus logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/104:55 pm
LAX
- BFS
3 stops42h 00m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$465
This KLM deal was found by Cheapflights users on 7/1. 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.
Tue 8/181:45 pm
SFO
- BHD
1 stop35h 35m
KLM
Deal found 7/1![KLM logo]()
$467
This FlightHub deal was found by Cheapflights users on 6/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/189:20 pm
SFO
- BHD
2 stops27h 20m
British Airways
Deal found 6/28![British Airways logo]()
$492
This Cheapflightsfares deal was found by Cheapflights users on 7/1. 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.
Fri 7/315:35 pm
SFO
- BHD
2 stops19h 20m
Aer Lingus
Deal found 7/1![Aer Lingus logo]()
$500
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 July 1, 2026.
Round-trip from | $836 (Expedia) |
|---|---|
One-way from | $395 (Kiwi.com) |
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 July 1, 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
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Tue 11/3
8:35 pm-8:10 pm
1 stop15h 35m
Belfast City
Fri 11/13
11:30 am-6:35 pm
1 stop15h 05m
$870
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Wed 9/9
4:35 pm-3:40 pm
1 stop15h 05m
Belfast City
Thu 9/17
6:30 am-1:50 pm
1 stop15h 20m
$903
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles Los Angeles
Sun 10/25
10:00 pm-8:15 pm
1 stop15h 15m
Belfast City
Mon 11/2
5:45 pm-1:30 pm
1 stop27h 45m
$904
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Wed 12/2
8:35 pm-8:15 pm
1 stop15h 40m
Belfast City
Sun 12/6
6:30 am-6:35 pm
1 stop20h 05m
$919
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Sun 11/8
8:35 pm-6:40 pm
1 stop14h 05m
Belfast City
Sat 11/14
6:35 am-2:55 pm
1 stop16h 20m
$920
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Thu 11/19
5:25 pm-4:40 pm
1 stop15h 15m
Belfast City
Mon 11/23
7:25 pm-2:55 pm
1 stop27h 30m
$920
Quickest round-trip
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Fri 11/6
8:35 pm-7:10 pm
1 stop14h 35m
Belfast City
Tue 11/10
8:45 am-2:55 pm
1 stop14h 10m
$920
Los AngelesBelfast
LAX - BFS
LAXBFS
Los Angeles Los Angeles
Sun 8/2
11:00 pm-11:20 pm
2 stops40h 20m
Belfast Intl
Tue 8/18
1:35 pm-5:30 pm
1 stop35h 55m
$924
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles Los Angeles
Fri 9/25
4:43 pm-6:10 pm
2 stops17h 27m
Belfast City
Mon 10/5
11:35 am-6:25 pm
1 stop14h 50m
$925
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Tue 9/29
1:05 pm-8:50 am
2 stops35h 45m
Belfast City
Fri 10/9
12:00 pm-9:29 am
2 stops29h 29m
$932
Showing 1-10 of 57 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-BFS
SFO-BHD
LAX-BFS
LAX-BHD
ONT-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-BFS
SFO-BHD
LAX-BFS
LAX-BHD
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 July 1, 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
6.9
Comfort
6.8
Food
6.4
Crew
7.7
Entertainment
6.4
Overall
6.7
Reviews
1 / 20
8.0
ExcellentLakshmi,Dec 2025
SFO - LHR
Boarding
6.9
Comfort
6.8
Food
6.4
Crew
7.7
Entertainment
6.4
Overall
6.7
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.
Browse thousands of different options on Cheapflights for your next trip
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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 July 1, 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 2,558,603 searches. Data last updated July 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$583 | Average$961 | FlexibilityNo cancel fee | On-time70% |