$225+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
Jul 21 — Jul 281
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Ireland with Cheapflights
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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 June 21, 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 June 21, 2026.
This KAYAK deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 11/94:15 pm
STL
- DUB
1 stop30h 55m
Aer Lingus
Wed 11/181:00 pm
DUB
- STL
1 stop32h 30m
Aer Lingus
Deal found 6/20![Aer Lingus logo]()
$349
This KAYAK deal was found by Cheapflights users on 6/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Wed 8/191:20 pm
DUB
- STL
1 stop30h 42m
Aer Lingus
Deal found 6/19![Aer Lingus logo]()
$354
This Ovago deal was found by Cheapflights users on 6/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Wed 8/191:20 pm
DUB
- STL
1 stop30h 42m
Aer Lingus
Deal found 6/17![Aer Lingus logo]()
$355
This KAYAK deal was found by Cheapflights users on 6/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/154:15 pm
STL
- DUB
1 stop30h 55m
Aer Lingus
Tue 11/241:00 pm
DUB
- STL
1 stop32h 30m
Aer Lingus
Deal found 6/19![Aer Lingus logo]()
$363
This KAYAK deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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.
Wed 9/28:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Tue 9/151:20 pm
DUB
- STL
1 stop13h 00m
Aer Lingus
Deal found 6/20![Aer Lingus logo]()
$367
This KAYAK deal was found by Cheapflights users on 6/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Wed 9/161:20 pm
DUB
- STL
1 stop13h 00m
Aer Lingus
Deal found 6/19![Aer Lingus logo]()
$368
This Ovago deal was found by Cheapflights users on 6/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Wed 9/161:20 pm
DUB
- STL
1 stop30h 40m
Aer Lingus
Deal found 6/18![Aer Lingus logo]()
$369
This KAYAK deal was found by Cheapflights users on 6/16. 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 10/264:15 pm
STL
- DUB
1 stop31h 55m
Aer Lingus
Wed 11/41:00 pm
DUB
- STL
1 stop32h 30m
Aer Lingus
Deal found 6/16![Aer Lingus logo]()
$370
This KAYAK deal was found by Cheapflights users on 6/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Fri 8/211:20 pm
DUB
- STL
1 stop13h 04m
Aer Lingus
Deal found 6/19![Aer Lingus logo]()
$404
This Ovago deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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.
Wed 8/128:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Sun 8/231:20 pm
DUB
- STL
1 stop13h 04m
Aer Lingus
Deal found 6/20![Aer Lingus logo]()
$405
This BusinessClass deal was found by Cheapflights users on 6/18. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Sun 9/131:20 pm
DUB
- STL
1 stop30h 40m
Aer Lingus
Deal found 6/18![Aer Lingus logo]()
$407
This Delta deal was found by Cheapflights users on 6/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:45 am
STL
- ORK
2 stops22h 55m
Delta
Wed 11/1111:15 am
ORK
- STL
2 stops18h 03m
Delta
Deal found 6/19![Delta logo]()
$714
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 June 21, 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 June 21, 2026.
This United deal was found by Cheapflights users on 6/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:30 am
STL
- DUB
1 stop18h 00m
Multiple Airlines
Wed 11/189:00 am
DUB
- STL
2 stops33h 20m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$679
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 10/261:24 pm
STL
- DUB
1 stop15h 56m
United Airlines
Wed 11/49:00 am
DUB
- STL
2 stops33h 06m
United Airlines
Deal found 6/20![United Airlines logo]()
$679
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:30 pm
STL
- DUB
1 stop13h 15m
Delta
Thu 11/510:45 am
DUB
- STL
1 stop12h 21m
Delta
Deal found 6/20![Delta logo]()
$756
This Cheapflightsfares deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/129:35 pm
STL
- ORK
1 stop16h 15m
British Airways
Wed 8/1911:25 am
ORK
- STL
2 stops17h 15m
British Airways
Deal found 6/20![British Airways logo]()
$957
This United Airlines deal was found by Cheapflights users on 6/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:15 pm
STL
- DUB
2 stops12h 40m
United Airlines
Wed 11/189:00 am
DUB
- STL
1 stop12h 30m
United Airlines
Deal found 6/19![United Airlines logo]()
$697
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/1611:13 am
STL
- ORK
2 stops21h 27m
Delta
Mon 8/245:15 pm
ORK
- STL
2 stops27h 18m
Delta
Deal found 6/21![Delta logo]()
$757
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Sun 8/1612:10 pm
STL
- DUB
1 stop13h 35m
United Airlines
Tue 8/259:50 am
DUB
- STL
2 stops32h 12m
United Airlines
Deal found 6/16![United Airlines logo]()
$735
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/1110:33 am
STL
- ORK
2 stops22h 07m
Delta
Wed 8/196:15 am
ORK
- STL
2 stops23h 06m
Delta
Deal found 6/20![Delta logo]()
$766
This United Airlines deal was found by Cheapflights users on 6/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:00 am
STL
- DUB
1 stop18h 30m
United Airlines
Tue 9/159:20 am
DUB
- STL
2 stops32h 37m
United Airlines
Deal found 6/19![United Airlines logo]()
$736
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/236:20 am
STL
- ORK
2 stops22h 00m
Delta
Wed 9/96:15 am
ORK
- STL
2 stops20h 20m
Delta
Deal found 6/21![Delta logo]()
$770
This Gotogate deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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.
Sun 8/1612:10 pm
STL
- ORK
2 stops16h 35m
Multiple Airlines
Mon 8/245:05 pm
ORK
- STL
1 stop26h 20m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$952
This British Airways deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 11/133:23 pm
STL
- ORK
2 stops18h 02m
British Airways
Tue 11/177:40 am
ORK
- STL
2 stops20h 49m
British Airways
Deal found 6/20![British Airways logo]()
$977
This United Airlines deal was found by Cheapflights users on 6/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/31:13 pm
STL
- DUB
2 stops12h 32m
United Airlines
Wed 8/198:50 am
DUB
- STL
2 stops14h 16m
United Airlines
Deal found 6/19![United Airlines logo]()
$756
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 11/263:15 pm
STL
- DUB
2 stops12h 40m
United Airlines
Thu 12/1010:40 am
DUB
- STL
1 stop12h 16m
United Airlines
Deal found 6/20![United Airlines logo]()
$756
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/113:24 pm
STL
- SNN
1 stop10h 06m
United Airlines
Wed 8/1912:30 pm
SNN
- STL
1 stop17h 08m
United Airlines
Deal found 6/20![United Airlines logo]()
$779
This United Airlines deal was found by Cheapflights users on 6/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/238:00 am
STL
- SNN
1 stop17h 30m
United Airlines
Wed 9/912:30 pm
SNN
- STL
1 stop17h 08m
United Airlines
Deal found 6/19![United Airlines logo]()
$779
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Sun 9/612:59 pm
STL
- SNN
1 stop12h 31m
United Airlines
Wed 9/3012:30 pm
SNN
- STL
1 stop14h 39m
United Airlines
Deal found 6/16![United Airlines logo]()
$828
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 9/55:30 pm
STL
- SNN
1 stop32h 00m
United Airlines
Sat 9/199:30 am
SNN
- STL
1 stop14h 46m
United Airlines
Deal found 6/21![United Airlines logo]()
$834
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 7/1511:25 am
STL
- SNN
1 stop14h 05m
United Airlines
Tue 7/2112:30 pm
SNN
- STL
1 stop17h 06m
United Airlines
Deal found 6/16![United Airlines logo]()
$877
This Mytrip deal was found by Cheapflights users on 6/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/112:10 pm
STL
- KIR
3 stops23h 10m
Multiple Airlines
Sat 8/810:25 am
KIR
- STL
2 stops15h 57m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$1,952
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Wed 7/159:30 am
STL
- SNN
1 stop16h 00m
United Airlines
Wed 7/2212:30 pm
SNN
- STL
1 stop17h 14m
United Airlines
Deal found 6/17![United Airlines logo]()
$877
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Fri 7/319:20 am
STL
- SNN
1 stop16h 10m
United Airlines
Fri 8/79:30 am
SNN
- STL
1 stop17h 56m
United Airlines
Deal found 6/16![United Airlines logo]()
$878
Last-minute flights from St. Louis to IrelandDiscover last-minute flight deals from St. Louis to Ireland. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Ireland. Data last updated June 21, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 7/1511:25 am
STL
- SNN
1 stop14h 05m
United Airlines
Tue 7/2112:30 pm
SNN
- STL
1 stop17h 06m
United Airlines
Deal found 6/16![United Airlines logo]()
$877
This Delta deal was found by Cheapflights users on 6/16. 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.
Wed 7/157:08 am
STL
- SNN
2 stops22h 02m
Delta
Tue 7/211:05 pm
SNN
- STL
2 stops26h 38m
Delta
Deal found 6/16![Delta logo]()
$882
This Air Canada deal was found by Cheapflights users on 6/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2712:10 pm
STL
- DUB
1 stop13h 35m
Air Canada
Fri 8/79:20 am
DUB
- STL
2 stops32h 51m
Air Canada
Deal found 6/17![Air Canada logo]()
$845
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Mon 7/2712:10 pm
STL
- DUB
1 stop13h 35m
United Airlines
Tue 8/119:50 am
DUB
- STL
1 stop14h 52m
United Airlines
Deal found 6/17![United Airlines logo]()
$854
This Air Canada deal was found by Cheapflights users on 6/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/271:13 pm
STL
- DUB
2 stops12h 32m
Air Canada
Tue 8/119:50 am
DUB
- STL
1 stop14h 52m
Air Canada
Deal found 6/17![Air Canada logo]()
$858
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Mon 7/2712:10 pm
STL
- DUB
1 stop13h 35m
United Airlines
Wed 8/59:20 am
DUB
- STL
1 stop10h 42m
United Airlines
Deal found 6/17![United Airlines logo]()
$859
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Tue 7/2812:55 pm
STL
- DUB
1 stop15h 45m
United Airlines
Thu 8/69:50 am
DUB
- STL
1 stop14h 52m
United Airlines
Deal found 6/17![United Airlines logo]()
$855
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Tue 7/288:43 am
STL
- DUB
1 stop16h 37m
United Airlines
Wed 8/59:20 am
DUB
- STL
1 stop10h 42m
United Airlines
Deal found 6/17![United Airlines logo]()
$860
This Air Canada deal was found by Cheapflights users on 6/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2812:10 pm
STL
- DUB
2 stops14h 05m
Air Canada
Tue 8/119:50 am
DUB
- STL
1 stop14h 52m
Air Canada
Deal found 6/17![Air Canada logo]()
$862
This KAYAK deal was found by Cheapflights users on 6/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:14 am
STL
- DUB
1 stop20h 01m
Aer Lingus
Fri 8/281:20 pm
DUB
- STL
1 stop13h 02m
Aer Lingus
Deal found 6/17![Aer Lingus logo]()
$691
This Justfly.com deal was found by Cheapflights users on 6/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:55 am
STL
- DUB
1 stop17h 20m
Air Canada
Fri 8/289:20 am
DUB
- STL
2 stops36h 11m
Air Canada
Deal found 6/17![Air Canada logo]()
$794
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Fri 7/319:20 am
STL
- SNN
1 stop16h 10m
United Airlines
Fri 8/79:30 am
SNN
- STL
1 stop17h 56m
United Airlines
Deal found 6/16![United Airlines logo]()
$878
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 June 21, 2026.
Search for one-way flight options from St. Louis to Ireland. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
This KAYAK deal was found by Cheapflights users on 6/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Deal found 6/17![Aer Lingus logo]()
$225
This Ovago deal was found by Cheapflights users on 6/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:15 pm
STL
- DUB
1 stop30h 55m
Aer Lingus
Deal found 6/18![Aer Lingus logo]()
$226
This KAYAK deal was found by Cheapflights users on 6/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Deal found 6/17![Aer Lingus logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Mon 10/1910:35 am
STL
- SNN
3 stops51h 45m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/266:34 pm
STL
- SNN
3 stops56h 56m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Fri 8/286:17 pm
STL
- DUB
3 stops34h 48m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:34 pm
STL
- DUB
3 stops57h 46m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Wed 7/154:09 pm
STL
- DUB
2 stops49h 16m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Mon 10/197:30 am
STL
- SNN
1 stop20h 45m
United Airlines
Deal found 6/17![United Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:34 pm
STL
- DUB
3 stops55h 21m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:34 pm
STL
- SNN
3 stops43h 56m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Thu 7/304:09 pm
STL
- DUB
2 stops57h 46m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$361
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 June 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (KAYAK) |
One-way from | $225 (KAYAK) |
Popular in | June |
Cheapest in | January |
Average price | $1,253 |
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 June 21, 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
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Mon 11/9
7:30 am-7:30 am
1 stop18h 00m
Dublin
Wed 11/18
9:00 am-12:20 pm
2 stops33h 20m
$679
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Mon 10/26
1:24 pm-10:20 am
1 stop15h 56m
Dublin
Wed 11/4
9:00 am-12:06 pm
2 stops33h 06m
$679
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Mon 11/9
3:15 pm-9:55 am
2 stops12h 40m
Dublin
Wed 11/18
9:00 am-3:30 pm
1 stop12h 30m
$697
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Sun 8/16
12:10 pm-7:45 am
1 stop13h 35m
Dublin
Tue 8/25
9:50 am-12:02 pm
2 stops32h 12m
$735
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Tue 9/8
7:00 am-7:30 am
1 stop18h 30m
Dublin
Tue 9/15
9:20 am-11:57 am
2 stops32h 37m
$736
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Thu 10/29
1:30 pm-7:45 am
1 stop13h 15m
Dublin
Thu 11/5
10:45 am-5:06 pm
1 stop12h 21m
$756
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Mon 8/3
1:13 pm-7:45 am
2 stops12h 32m
Dublin
Wed 8/19
8:50 am-5:06 pm
2 stops14h 16m
$756
Quickest round-trip
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Thu 11/26
3:15 pm-9:55 am
2 stops12h 40m
Dublin
Thu 12/10
10:40 am-4:56 pm
1 stop12h 16m
$756
St. LouisCork
STL - ORK
STLORK
Lambert-St Louis
Sun 8/16
11:13 am-2:40 pm
2 stops21h 27m
Cork
Mon 8/24
5:15 pm-2:33 pm
2 stops27h 18m
$757
St. LouisCork
STL - ORK
STLORK
Lambert-St Louis
Tue 8/11
10:33 am-2:40 pm
2 stops22h 07m
Cork
Wed 8/19
6:15 am-11:21 pm
2 stops23h 06m
$766
Showing 1-10 of 33 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-SNN
STL-ORK
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-SNN
STL-ORK
STL-KIR
What is the cheapest month to book a flight from St. Louis to Ireland?
Currently, September is the cheapest month in which you can book a flight from St. Louis to Ireland (average of $322). Flying from St. Louis to Ireland in June is currently the most expensive (average of $608). 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.
How far ahead should I book a flight from St. Louis to Ireland?
To ensure you get the cheapest price possible for a flight from St. Louis to Ireland, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 June 21, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAer Lingus 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
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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 June 21, 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 June 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$325 | Average$426 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$412 | Average$692 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$416 | Average$800 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$418 | Average$556 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$428 | Average$688 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$430 | Average$637 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$466 | Average$601 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$482 | Average$791 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$483 | Average$710 | FlexibilityNo cancel fee | On-timeN/A |