$312+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
Dec 5 — Dec 121
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 November 5, 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 November 5, 2026.
This FlightHub deal was found by Cheapflights users on 10/31. 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.
Mon 11/308:40 pm -
1 stop13h 55m
Mon 12/77:40 pm -
1 stop25h 45m
Deal found 10/31![British Airways logo]()
$966
This Delta deal was found by Cheapflights users on 10/31. 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 11/307:40 am -
2 stops17h 30m
Mon 12/75:15 pm -
1 stop26h 30m
Deal found 10/31![Delta logo]()
$974
This British Airways deal was found by Cheapflights users on 11/1. 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.
Fri 12/45:25 pm -
1 stop16h 00m
Mon 12/75:35 pm -
1 stop29h 20m
Deal found 11/1![British Airways logo]()
$1,021
This Booking.com deal was found by Cheapflights users on 11/3. 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.
Thu 12/38:35 pm -
1 stop30h 20m
Thu 12/108:00 pm -
1 stop26h 55m
Deal found 11/3![British Airways logo]()
$1,022
This Delta deal was found by Cheapflights users on 11/3. 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 12/36:00 am -
2 stops19h 10m
Thu 12/105:15 pm -
1 stop26h 30m
Deal found 11/3![Delta logo]()
$1,034
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Fri 12/46:30 am -
3 stops26h 50m
Mon 12/79:45 am -
3 stops42h 23m
Deal found 11/1![Multiple Airlines logo]()
$1,037
This Booking.com deal was found by Cheapflights users on 10/31. 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.
Sat 11/285:25 pm -
1 stop15h 20m
Sat 12/56:15 pm -
1 stop28h 40m
Deal found 10/31![British Airways logo]()
$1,054
This Mytrip deal was found by Cheapflights users on 10/31. 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 11/306:00 am -
3 stops27h 40m
Mon 12/72:20 pm -
3 stops32h 55m
Deal found 10/31![Multiple Airlines logo]()
$1,062
This American Airlines deal was found by Cheapflights users on 10/31. 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 11/288:55 am -
2 stops18h 15m
Sat 12/511:45 am -
2 stops20h 22m
Deal found 10/31![American Airlines logo]()
$1,077
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 11/175:25 pm -
1 stop15h 20m
Tue 11/246:35 am -
1 stop16h 20m
Deal found 11/3![British Airways logo]()
$1,083
This FlightHub deal was found by Cheapflights users on 11/3. 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.
Thu 11/123:30 pm -
1 stop13h 15m
Tue 11/176:15 pm -
2 stops30h 25m
Deal found 11/3![British Airways logo]()
$1,142
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/285:44 am -
2 stops21h 06m
Tue 1/510:00 am -
2 stops20h 54m
Deal found 11/4![American Airlines logo]()
$1,307
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 November 5, 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 November 5, 2026.
This British Airways deal was found by Cheapflights users on 11/2. 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 5/35:05 pm -
1 stop14h 25m
Wed 5/58:35 pm -
1 stop26h 20m
Deal found 11/2![British Airways logo]()
$893
This American Airlines deal was found by Cheapflights users on 10/31. 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 5/21:28 pm -
2 stops17h 07m
Mon 5/109:40 am -
2 stops19h 27m
Deal found 10/31![American Airlines logo]()
$958
This Delta deal was found by Cheapflights users on 11/3. 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 12/36:00 am -
2 stops19h 10m
Thu 12/105:15 pm -
1 stop26h 30m
Deal found 11/3![Delta logo]()
$1,034
This Mytrip deal was found by Cheapflights users on 11/3. 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 12/36:30 am -
3 stops30h 35m
Thu 12/1010:00 am -
3 stops42h 08m
Deal found 11/3![Multiple Airlines logo]()
$1,140
This Expedia deal was found by Cheapflights users on 11/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/194:44 pm -
2 stops17h 41m
Wed 3/2412:20 pm -
1 stop14h 15m
Deal found 11/1![British Airways logo]()
$930
This British Airways deal was found by Cheapflights users on 11/1. 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.
Fri 3/194:25 pm -
2 stops18h 00m
Wed 3/2411:40 am -
2 stops19h 19m
Deal found 11/1![British Airways logo]()
$954
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Fri 3/191:36 pm -
2 stops17h 29m
Sat 3/279:20 am -
2 stops19h 49m
Deal found 11/3![American Airlines logo]()
$1,083
This FlightHub deal was found by Cheapflights users on 10/31. 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.
Fri 3/1911:33 am -
2 stops19h 32m
Mon 3/297:35 pm -
2 stops28h 59m
Deal found 10/31![British Airways logo]()
$958
This British Airways deal was found by Cheapflights users on 10/31. 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 5/44:31 pm -
2 stops17h 04m
Sat 5/157:05 pm -
1 stop26h 45m
Deal found 10/31![British Airways logo]()
$958
This FlightHub deal was found by Cheapflights users on 10/31. 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.
Mon 11/308:40 pm -
1 stop13h 55m
Mon 12/77:40 pm -
1 stop25h 45m
Deal found 10/31![British Airways logo]()
$966
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/285:44 am -
2 stops21h 06m
Tue 1/510:00 am -
2 stops20h 54m
Deal found 11/4![American Airlines logo]()
$1,307
This FlightHub deal was found by Cheapflights users on 11/4. 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 1/271:18 pm -
2 stops17h 17m
Tue 2/26:35 am -
2 stops19h 59m
Deal found 11/4![British Airways logo]()
$989
This FlightHub deal was found by Cheapflights users on 11/2. 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.
Fri 3/191:15 pm -
2 stops17h 50m
Sun 3/288:10 pm -
1 stop26h 45m
Deal found 11/2![British Airways logo]()
$993
This KAYAK deal was found by Cheapflights users on 11/3. 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.
Sat 3/68:40 pm -
1 stop15h 45m
Sun 3/1412:00 pm -
1 stop14h 35m
Deal found 11/3![British Airways logo]()
$1,000
This FlightHub deal was found by Cheapflights users on 11/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:03 pm -
2 stops17h 22m
Mon 12/77:40 pm -
2 stops32h 55m
Deal found 11/1![British Airways logo]()
$1,030
This Booking.com deal was found by Cheapflights users on 10/31. 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.
Sat 11/285:25 pm -
1 stop13h 50m
Sat 12/56:35 am -
2 stops19h 28m
Deal found 10/31![British Airways logo]()
$1,070
This British Airways deal was found by Cheapflights users on 11/2. 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 3/21:44 pm -
2 stops19h 01m
Fri 3/56:45 am -
2 stops25h 14m
Deal found 11/2![British Airways logo]()
$1,144
This British Airways deal was found by Cheapflights users on 11/3. 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 2/281:44 pm -
2 stops21h 06m
Wed 3/36:35 am -
2 stops23h 31m
Deal found 11/3![British Airways logo]()
$1,144
This British Airways deal was found by Cheapflights users on 11/2. 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 4/1912:24 pm -
2 stops23h 01m
Wed 4/218:35 pm -
2 stops35h 11m
Deal found 11/2![British Airways logo]()
$1,148
This British Airways deal was found by Cheapflights users on 11/4. 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 3/17:36 am -
2 stops19h 14m
Wed 3/311:40 am -
2 stops19h 46m
Deal found 11/4![British Airways logo]()
$1,155
This KAYAK deal was found by Cheapflights users on 10/31. 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.
Sat 3/62:29 pm -
2 stops18h 16m
Sun 3/148:30 pm -
2 stops34h 29m
Deal found 10/31![British Airways logo]()
$1,254
This British Airways deal was found by Cheapflights users on 11/2. 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 11/165:25 pm -
1 stop14h 30m
Wed 11/185:35 pm -
1 stop29h 20m
Deal found 11/2![British Airways logo]()
$1,327
This Ovago deal was found by Cheapflights users on 10/31. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2811:59 pm -
2 stops26h 51m
Tue 1/56:30 pm -
3 stops59h 45m
Deal found 10/31![British Airways logo]()
$1,364
Last-minute flights from California to Northern IrelandDiscover last-minute flight deals from California to Northern Ireland. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from California to Northern Ireland. Data last updated November 5, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 11/3. 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.
Thu 11/123:30 pm -
1 stop13h 15m
Tue 11/176:15 pm -
2 stops30h 25m
Deal found 11/3![British Airways logo]()
$1,142
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 11/175:25 pm -
1 stop15h 20m
Tue 11/246:35 am -
1 stop16h 20m
Deal found 11/3![British Airways logo]()
$1,083
This Booking.com deal was found by Cheapflights users on 10/31. 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.
Sat 11/285:25 pm -
1 stop15h 20m
Sat 12/56:15 pm -
1 stop28h 40m
Deal found 10/31![British Airways logo]()
$1,054
This American Airlines deal was found by Cheapflights users on 10/31. 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 11/288:55 am -
2 stops18h 15m
Sat 12/511:45 am -
2 stops20h 22m
Deal found 10/31![American Airlines logo]()
$1,077
This FlightHub deal was found by Cheapflights users on 10/31. 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.
Mon 11/308:40 pm -
1 stop13h 55m
Mon 12/77:40 pm -
1 stop25h 45m
Deal found 10/31![British Airways logo]()
$966
This Delta deal was found by Cheapflights users on 10/31. 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 11/307:40 am -
2 stops17h 30m
Mon 12/75:15 pm -
1 stop26h 30m
Deal found 10/31![Delta logo]()
$974
This Mytrip deal was found by Cheapflights users on 10/31. 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 11/306:00 am -
3 stops27h 40m
Mon 12/72:20 pm -
3 stops32h 55m
Deal found 10/31![Multiple Airlines logo]()
$1,062
This Booking.com deal was found by Cheapflights users on 11/3. 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.
Thu 12/38:35 pm -
1 stop30h 20m
Thu 12/108:00 pm -
1 stop26h 55m
Deal found 11/3![British Airways logo]()
$1,022
This Delta deal was found by Cheapflights users on 11/3. 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 12/36:00 am -
2 stops19h 10m
Thu 12/105:15 pm -
1 stop26h 30m
Deal found 11/3![Delta logo]()
$1,034
This British Airways deal was found by Cheapflights users on 11/1. 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.
Fri 12/45:25 pm -
1 stop16h 00m
Mon 12/75:35 pm -
1 stop29h 20m
Deal found 11/1![British Airways logo]()
$1,021
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Fri 12/46:30 am -
3 stops26h 50m
Mon 12/79:45 am -
3 stops42h 23m
Deal found 11/1![Multiple Airlines logo]()
$1,037
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/285:44 am -
2 stops21h 06m
Tue 1/510:00 am -
2 stops20h 54m
Deal found 11/4![American Airlines logo]()
$1,307
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 November 5, 2026.
Search for one-way flight options from California to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This Expedia deal was found by Cheapflights users on 11/5. 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 4/143:45 pm -
1 stop13h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![British Airways logo]()
$312
This Expedia deal was found by Cheapflights users on 11/5. 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 4/1410:59 am -
2 stops18h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![British Airways logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/86:30 am -
3 stops26h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 11/137:15 pm -
3 stops52h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Wed 12/96:30 am -
3 stops25h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Thu 12/106:30 am -
3 stops27h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$452
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 4/147:35 pm -
3 stops29h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Multiple Airlines logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 1/144:40 pm -
3 stops43h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Multiple Airlines logo]()
$486
This Cheapflightsfares deal was found by Cheapflights users on 11/1. 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 1/88:25 pm -
2 stops29h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Aer Lingus logo]()
$506
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Mon 12/146:30 am -
3 stops27h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$510
This KAYAK deal was found by Cheapflights users on 11/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/125:20 pm -
2 stops16h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Aer Lingus logo]()
$534
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Sat 12/126:30 am -
3 stops22h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$541
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 November 5, 2026.
Round-trip from | $889 (British Airways) |
|---|---|
One-way from | $317 (Expedia) |
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 November 5, 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
Wed 4/14
12:15 pm-1:35 pm
2 stops17h 20m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$317
OntarioBelfast
ONT Ontario - BHD Belfast City
ONTBHD
Ontario
Wed 4/14
10:59 am-1:35 pm
2 stops18h 36m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$317
San FranciscoBelfast
SFO San Francisco - BHD Belfast City
SFOBHD
San Francisco
Fri 11/13
7:15 pm-7:30 am
3 stops52h 15m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$435
San FranciscoBelfast
SFO San Francisco - BHD Belfast City
SFOBHD
San Francisco
Wed 12/9
6:30 am-3:30 pm
3 stops25h 00m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$442
Los AngelesBelfast
LAX Los Angeles - BHD Belfast City
LAXBHD
Los Angeles
Wed 4/14
7:35 pm-8:35 am
3 stops29h 00m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$453
San FranciscoBelfast
SFO San Francisco - BHD Belfast City
SFOBHD
San Francisco
Thu 1/14
4:40 pm-8:30 pm
3 stops43h 50m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$486
Los AngelesBelfast
LAX Los Angeles - BHD Belfast City
LAXBHD
Los Angeles
Fri 1/8
8:25 pm-9:50 am
2 stops29h 25m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$506
Quickest round-trip
San FranciscoBelfast
SFO San Francisco - BHD Belfast City
SFOBHD
San Francisco
Tue 12/8
5:25 pm-4:45 pm
1 stop15h 20m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$542
San FranciscoBelfast
SFO San Francisco - BHD Belfast City
SFOBHD
San Francisco
Fri 11/13
5:25 pm-7:10 pm
1 stop17h 45m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$591
San FranciscoBelfast
SFO San Francisco - BHD Belfast City
SFOBHD
San Francisco
Thu 1/14
11:52 am-12:45 pm
2 stops16h 53m
Belfast City
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$595
Showing 1-10 of 37 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.
LAX-BHD
SFO-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
LAX-BHD
SFO-BHD
ONT-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 November 5, 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.
Comfort
6.8
Crew
7.7
Entertainment
6.5
Boarding
7.0
Overall
6.7
Food
6.4
Reviews
1 / 20
8.0
ExcellentLakshmi,Dec 2025
SFO - LHR
Comfort
6.8
Crew
7.7
Entertainment
6.5
Boarding
7.0
Overall
6.7
Food
6.4
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 November 5, 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 November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$586 | Average$1,012 | FlexibilityNo cancel fee | On-time70% |