$386+ Cheap flights from St. Louis (STL) to 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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
Apr 18 — Apr 251
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Ireland with Cheapflights
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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 St. Louis to IrelandExplore the most affordable flight options available from St. Louis to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 19, 2026.
Explore the most affordable flight options available from St. Louis to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 19, 2026.
This Gotogate deal was found by Cheapflights users on 3/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:55 am
STL
- DUB
1 stop17h 20m
Multiple Airlines
Wed 9/95:55 am
DUB
- STL
1 stop13h 30m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$571
This Air Canada deal was found by Cheapflights users on 3/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:10 pm
STL
- DUB
1 stop13h 35m
Air Canada
Thu 8/209:50 am
DUB
- STL
2 stops41h 32m
Air Canada
Deal found 3/15![Air Canada logo]()
$578
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:10 am
STL
- DUB
2 stops20h 35m
United Airlines
Wed 8/199:20 am
DUB
- STL
2 stops38h 29m
United Airlines
Deal found 3/14![United Airlines logo]()
$579
This Mytrip deal was found by Cheapflights users on 3/14. 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.
Tue 8/113:30 pm
STL
- DUB
1 stop19h 20m
Multiple Airlines
Wed 8/199:20 am
DUB
- STL
1 stop10h 42m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$586
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:10 am
STL
- DUB
2 stops20h 35m
United Airlines
Thu 8/209:50 am
DUB
- STL
1 stop14h 52m
United Airlines
Deal found 3/14![United Airlines logo]()
$588
This Mytrip deal was found by Cheapflights users on 3/15. 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.
Tue 9/83:30 pm
STL
- DUB
1 stop19h 20m
Multiple Airlines
Tue 9/159:20 am
DUB
- STL
2 stops16h 40m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$589
This Justfly.com deal was found by Cheapflights users on 3/14. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:10 pm
STL
- DUB
1 stop13h 35m
Multiple Airlines
Wed 8/265:55 am
DUB
- STL
1 stop13h 30m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$594
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/163:10 pm
STL
- SNN
1 stop10h 20m
United Airlines
Fri 8/289:30 am
SNN
- STL
1 stop14h 00m
United Airlines
Deal found 3/14![United Airlines logo]()
$608
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:55 pm
STL
- SNN
1 stop30h 35m
United Airlines
Fri 8/219:30 am
SNN
- STL
1 stop16h 01m
United Airlines
Deal found 3/14![United Airlines logo]()
$609
This KLM deal was found by Cheapflights users on 3/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1611:51 am
STL
- SNN
2 stops17h 19m
KLM
Fri 8/281:05 pm
SNN
- STL
2 stops16h 32m
KLM
Deal found 3/14![KLM logo]()
$612
This United Airlines deal was found by Cheapflights users on 3/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:25 am
STL
- SNN
1 stop14h 05m
United Airlines
Fri 8/2112:30 pm
SNN
- STL
2 stops14h 52m
United Airlines
Deal found 3/15![United Airlines logo]()
$613
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:55 pm
STL
- SNN
1 stop30h 35m
United Airlines
Sun 8/239:30 am
SNN
- STL
1 stop10h 55m
United Airlines
Deal found 3/14![United Airlines logo]()
$658
Best flights from St. Louis to IrelandDiscover carefully curated flight deals from St. Louis to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 19, 2026.
Discover carefully curated flight deals from St. Louis to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 19, 2026.
This United Airlines deal was found by Cheapflights users on 3/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:00 am
STL
- DUB
2 stops15h 20m
United Airlines
Wed 4/229:50 am
DUB
- STL
1 stop11h 35m
United Airlines
Deal found 3/15![United Airlines logo]()
$651
This KLM deal was found by Cheapflights users on 3/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:03 pm
STL
- DUB
1 stop13h 42m
KLM
Wed 5/1311:00 am
DUB
- STL
1 stop18h 59m
KLM
Deal found 3/14![KLM logo]()
$667
This Delta deal was found by Cheapflights users on 3/16. 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 4/306:48 am
STL
- ORK
2 stops21h 32m
Delta
Thu 5/76:15 am
ORK
- STL
2 stops20h 54m
Delta
Deal found 3/16![Delta logo]()
$768
This Finnair deal was found by Cheapflights users on 3/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:21 pm
STL
- DUB
2 stops17h 54m
Finnair
Fri 5/89:40 am
DUB
- STL
2 stops18h 39m
Finnair
Deal found 3/17![Finnair logo]()
$778
This Gotogate deal was found by Cheapflights users on 3/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/294:05 pm
STL
- SNN
2 stops18h 05m
Air Canada
Wed 5/67:30 am
SNN
- STL
2 stops18h 55m
Air Canada
Deal found 3/14![Air Canada logo]()
$809
This Expedia deal was found by Cheapflights users on 3/16. 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.
Thu 4/307:09 pm
STL
- ORK
2 stops15h 21m
Lufthansa
Thu 5/75:05 pm
ORK
- STL
1 stop26h 20m
Lufthansa
Deal found 3/16![Lufthansa logo]()
$816
This British Airways deal was found by Cheapflights users on 3/16. 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 4/292:33 pm
STL
- SNN
2 stops14h 47m
British Airways
Fri 5/87:30 am
SNN
- STL
2 stops15h 11m
British Airways
Deal found 3/16![British Airways logo]()
$878
This Air Canada deal was found by Cheapflights users on 3/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2510:00 am
STL
- ORK
3 stops20h 10m
Multiple Airlines
Sat 4/411:25 am
ORK
- STL
2 stops34h 00m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$911
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2610:00 am
STL
- DUB
1 stop17h 45m
United Airlines
Sun 5/39:20 am
DUB
- STL
2 stops19h 25m
United Airlines
Deal found 3/14![United Airlines logo]()
$706
This Delta deal was found by Cheapflights users on 3/14. 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.
Sun 4/2611:42 am
STL
- DUB
2 stops15h 33m
Delta
Sun 5/36:00 am
DUB
- STL
2 stops20h 44m
Delta
Deal found 3/14![Delta logo]()
$774
This United Airlines deal was found by Cheapflights users on 3/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:45 am
STL
- DUB
1 stop20h 00m
United Airlines
Tue 5/59:50 am
DUB
- STL
2 stops19h 06m
United Airlines
Deal found 3/13![United Airlines logo]()
$706
This KLM deal was found by Cheapflights users on 3/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:35 pm
STL
- ORK
2 stops17h 05m
KLM
Thu 5/216:15 am
ORK
- STL
2 stops20h 54m
KLM
Deal found 3/14![KLM logo]()
$785
This Delta deal was found by Cheapflights users on 3/15. 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.
Tue 5/512:23 pm
STL
- ORK
2 stops22h 17m
Delta
Thu 5/216:15 am
ORK
- STL
2 stops20h 54m
Delta
Deal found 3/15![Delta logo]()
$785
This British Airways deal was found by Cheapflights users on 3/18. 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 4/105:21 pm
STL
- DUB
2 stops15h 09m
British Airways
Thu 4/168:35 am
DUB
- STL
2 stops16h 58m
British Airways
Deal found 3/18![British Airways logo]()
$897
This Billigflug deal was found by Cheapflights users on 3/16. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/11:00 pm
STL
- SNN
2 stops20h 50m
Multiple Airlines
Fri 5/812:30 pm
SNN
- STL
1 stop17h 27m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$927
This KLM deal was found by Cheapflights users on 3/15. 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 3/2512:04 pm
STL
- DUB
1 stop14h 41m
KLM
Sat 4/41:25 pm
DUB
- STL
2 stops16h 33m
KLM
Deal found 3/15![KLM logo]()
$844
This United Airlines deal was found by Cheapflights users on 3/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/210:25 am
STL
- DUB
2 stops14h 55m
United Airlines
Sat 5/99:30 am
DUB
- STL
2 stops14h 46m
United Airlines
Deal found 3/17![United Airlines logo]()
$814
This Delta deal was found by Cheapflights users on 3/14. 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.
Wed 3/2512:28 pm
STL
- ORK
2 stops21h 32m
Delta
Sat 4/46:15 am
ORK
- STL
2 stops23h 10m
Delta
Deal found 3/14![Delta logo]()
$846
This United Airlines deal was found by Cheapflights users on 3/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:09 pm
STL
- SNN
2 stops33h 06m
United Airlines
Thu 5/712:30 pm
SNN
- STL
2 stops14h 43m
United Airlines
Deal found 3/16![United Airlines logo]()
$816
This KLM deal was found by Cheapflights users on 3/17. 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 3/2512:28 pm
STL
- ORK
2 stops17h 17m
KLM
Sat 4/46:15 am
ORK
- STL
2 stops16h 25m
KLM
Deal found 3/17![KLM logo]()
$950
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:21 am
STL
- SNN
2 stops19h 54m
United Airlines
Sat 4/1812:30 pm
SNN
- STL
2 stops15h 22m
United Airlines
Deal found 3/14![United Airlines logo]()
$852
This Mytrip deal was found by Cheapflights users on 3/19. 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 5/37:05 am
STL
- KIR
3 stops28h 25m
Multiple Airlines
Sun 5/1010:45 am
KIR
- STL
2 stops15h 19m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$1,214
This United Airlines deal was found by Cheapflights users on 3/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:24 pm
STL
- SNN
1 stop10h 51m
United Airlines
Sun 5/1012:30 pm
SNN
- STL
2 stops17h 54m
United Airlines
Deal found 3/16![United Airlines logo]()
$852
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:45 am
STL
- SNN
2 stops19h 30m
United Airlines
Thu 5/2112:30 pm
SNN
- STL
2 stops17h 27m
United Airlines
Deal found 3/14![United Airlines logo]()
$864
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:00 am
STL
- DUB
1 stop21h 45m
United Airlines
Wed 6/109:20 am
DUB
- STL
1 stop32h 46m
United Airlines
Deal found 3/14![United Airlines logo]()
$872
This United Airlines deal was found by Cheapflights users on 3/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:59 pm
STL
- SNN
2 stops34h 16m
United Airlines
Tue 5/1912:30 pm
SNN
- STL
2 stops27h 00m
United Airlines
Deal found 3/18![United Airlines logo]()
$885
This United Airlines deal was found by Cheapflights users on 3/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:00 am
STL
- SNN
2 stops22h 15m
United Airlines
Fri 5/812:30 pm
SNN
- STL
2 stops27h 00m
United Airlines
Deal found 3/17![United Airlines logo]()
$895
Last-minute flights from St. Louis to IrelandDiscover last-minute flight deals from St. Louis to Ireland. Data last updated March 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Ireland. Data last updated March 19, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 3/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/144:05 pm
STL
- DUB
1 stop10h 10m
Air Canada
Tue 4/219:50 am
DUB
- STL
1 stop11h 35m
Air Canada
Deal found 3/15![Air Canada logo]()
$617
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:30 am
STL
- DUB
1 stop16h 50m
United Airlines
Tue 4/219:50 am
DUB
- STL
2 stops42h 38m
United Airlines
Deal found 3/14![United Airlines logo]()
$633
This United Airlines deal was found by Cheapflights users on 3/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:15 am
STL
- DUB
1 stop16h 30m
United Airlines
Wed 4/229:50 am
DUB
- STL
1 stop11h 35m
United Airlines
Deal found 3/16![United Airlines logo]()
$646
This KLM deal was found by Cheapflights users on 3/16. 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.
Sun 4/196:50 pm
STL
- DUB
1 stop31h 55m
KLM
Tue 5/51:25 pm
DUB
- STL
2 stops16h 11m
KLM
Deal found 3/16![KLM logo]()
$650
This British Airways deal was found by Cheapflights users on 3/14. 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 4/229:35 pm
STL
- DUB
1 stop28h 10m
British Airways
Wed 4/2910:30 am
DUB
- STL
1 stop15h 00m
British Airways
Deal found 3/14![British Airways logo]()
$652
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:49 pm
STL
- DUB
2 stops34h 56m
United Airlines
Wed 5/69:20 am
DUB
- STL
2 stops43h 10m
United Airlines
Deal found 3/14![United Airlines logo]()
$648
This KAYAK deal was found by Cheapflights users on 3/16. 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.
Mon 4/2711:37 am
STL
- SNN
1 stop16h 38m
Lufthansa
Fri 5/812:30 pm
SNN
- STL
1 stop17h 27m
Lufthansa
Deal found 3/16![Lufthansa logo]()
$756
This KAYAK deal was found by Cheapflights users on 3/16. 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.
Mon 4/275:24 pm
STL
- SNN
1 stop10h 51m
Lufthansa
Sat 5/912:00 pm
SNN
- STL
2 stops16h 45m
Lufthansa
Deal found 3/16![Lufthansa logo]()
$794
This Expedia deal was found by Cheapflights users on 3/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:27 pm
STL
- DUB
1 stop15h 18m
Iberia
Tue 5/59:30 am
DUB
- STL
1 stop19h 29m
Iberia
Deal found 3/14![Iberia logo]()
$647
This Air Canada deal was found by Cheapflights users on 3/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:45 am
STL
- DUB
2 stops18h 30m
Air Canada
Tue 5/129:50 am
DUB
- STL
1 stop16h 14m
Air Canada
Deal found 3/15![Air Canada logo]()
$654
This Kissandfly.com deal was found by Cheapflights users on 3/14. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:15 am
STL
- SNN
1 stop22h 00m
Lufthansa
Wed 5/612:30 pm
SNN
- STL
2 stops27h 00m
Lufthansa
Deal found 3/14![Lufthansa logo]()
$732
This Delta deal was found by Cheapflights users on 3/16. 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 4/306:48 am
STL
- ORK
2 stops21h 32m
Delta
Thu 5/76:15 am
ORK
- STL
2 stops20h 54m
Delta
Deal found 3/16![Delta logo]()
$768
One-way flights from St. Louis to IrelandSearch for one-way flight options from St. Louis to Ireland. Find affordable one-way fares based on user searches. Data last updated March 19, 2026.
Search for one-way flight options from St. Louis to Ireland. Find affordable one-way fares based on user searches. Data last updated March 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Mon 3/308:12 pm
STL
- DUB
3 stops45h 53m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 5/266:33 pm
STL
- DUB
3 stops58h 17m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$412
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 5/28:17 pm
STL
- DUB
3 stops54h 53m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$418
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 4/278:17 pm
STL
- DUB
3 stops44h 33m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 3/2212:15 pm
STL
- DUB
3 stops22h 15m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$460
This KAYAK deal was found by Cheapflights users on 3/18. 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.
Mon 4/2712:25 pm
STL
- DUB
1 stop16h 10m
Aer Lingus
Deal found 3/18![Aer Lingus logo]()
$482
This Justfly.com deal was found by Cheapflights users on 3/18. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/228:00 am
STL
- DUB
1 stop16h 10m
Aer Lingus
Deal found 3/18![Aer Lingus logo]()
$491
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 5/214:19 pm
STL
- DUB
3 stops40h 41m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$493
This Air Canada deal was found by Cheapflights users on 3/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:20 pm
STL
- ORK
2 stops44h 15m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$695
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:30 pm
STL
- SNN
2 stops31h 45m
United Airlines
Deal found 3/14![United Airlines logo]()
$704
This Cheapflightsfares deal was found by Cheapflights users on 3/17. 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 5/155:21 pm
STL
- ORK
2 stops15h 49m
British Airways
Deal found 3/17![British Airways logo]()
$737
This United Airlines deal was found by Cheapflights users on 3/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/11:13 pm
STL
- SNN
2 stops15h 02m
United Airlines
Deal found 3/15![United Airlines logo]()
$752
Find flight deals from St. Louis to Ireland
Keep the following information in mind while searching for St. Louis to Ireland flight deals. Data was last updated March 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $608 (United Airlines) |
One-way from | $386 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $722 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to 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 March 19, 2026.
Use the filters below to find and compare flights from St. Louis to Ireland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Tue 4/14
10:00 am-7:20 am
2 stops15h 20m
Dublin
Wed 4/22
9:50 am-3:25 pm
1 stop11h 35m
$651
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Wed 4/22
1:03 pm-8:45 am
1 stop13h 42m
Dublin
Wed 5/13
11:00 am-11:59 pm
1 stop18h 59m
$667
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Sun 4/26
10:00 am-9:45 am
1 stop17h 45m
Dublin
Sun 5/3
9:20 am-10:45 pm
2 stops19h 25m
$706
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Fri 4/24
7:45 am-9:45 am
1 stop20h 00m
Dublin
Tue 5/5
9:50 am-10:56 pm
2 stops19h 06m
$706
St. LouisCork
STL - ORK
STLORK
Lambert-St Louis
Thu 4/30
6:48 am-10:20 am
2 stops21h 32m
Cork
Thu 5/7
6:15 am-9:09 pm
2 stops20h 54m
$768
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Sun 4/26
11:42 am-9:15 am
2 stops15h 33m
Dublin
Sun 5/3
6:00 am-8:44 pm
2 stops20h 44m
$774
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Fri 5/1
5:21 pm-5:15 pm
2 stops17h 54m
Dublin
Fri 5/8
9:40 am-10:19 pm
2 stops18h 39m
$778
St. LouisCork
STL - ORK
STLORK
Lambert-St Louis
Tue 5/5
5:35 pm-4:40 pm
2 stops17h 05m
Cork
Thu 5/21
6:15 am-9:09 pm
2 stops20h 54m
$785
St. LouisCork
STL - ORK
STLORK
Lambert-St Louis
Tue 5/5
12:23 pm-4:40 pm
2 stops22h 17m
Cork
Thu 5/21
6:15 am-9:09 pm
2 stops20h 54m
$785
St. LouisShannon
STL - SNN
STLSNN
Lambert-St Louis
Wed 4/29
4:05 pm-4:10 pm
2 stops18h 05m
Shannon
Wed 5/6
7:30 am-8:25 pm
2 stops18h 55m
$809
Showing 1-10 of 42 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Ireland
Have a flexible travel schedule? Discover the best time to fly to Ireland from St. Louis with our price prediction graph.
STL-DUB
STL-ORK
STL-SNN
STL-KIR
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 St. Louis to Ireland
STL-IE0
STL-DUB
STL-ORK
STL-SNN
STL-KIR
What is the cheapest month to book a flight from St. Louis to Ireland?
Currently, October is the cheapest month in which you can book a flight from St. Louis to Ireland (average of $397). Flying from St. Louis to Ireland in June is currently the most expensive (average of $718). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Ireland
Get insights into the airlines that provide service to 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 Ireland. Reviews last updated March 19, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from St. Louis to Ireland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from St. Louis to 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 St. Louis to Ireland
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Complete your trip
Complete your trip to Ireland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Ireland by cabin class
Find flights from St. Louis to Ireland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Ireland flights
Browse other St. Louis and Ireland flight options. Last updated on March 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Ireland flights
Consider these flights traveling from St. Louis to Ireland.
Fly to Ireland regions
Consider these flights traveling to Ireland regions.
Top 9 airlines flying from St. Louis to Ireland
Discover the top 9 airlines that operate flights from St. Louis to 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 March 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$412 | Average$631 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$418 | Average$556 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$462 | Average$716 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$465 | Average$730 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$466 | Average$614 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$468 | Average$777 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$483 | Average$755 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$483 | Average$752 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$714 | Average$948 | FlexibilityNo cancel fee | On-timeN/A |