$225+ Cheap flights from St. Louis (STL) to Dublin (DUB)
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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
Aug 18 — Aug 251
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Dublin 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Dublin
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Best
Last-minute
One-way
Cheapest flights from St. Louis to DublinExplore the most affordable flight options available from St. Louis to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 19, 2026.
Explore the most affordable flight options available from St. Louis to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 19, 2026.
This KAYAK deal was found by Cheapflights users on 7/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/154:05 pm
STL
- DUB
1 stop31h 05m
Aer Lingus
Thu 11/261:00 pm
DUB
- STL
1 stop32h 26m
Aer Lingus
Deal found 7/15![Aer Lingus logo]()
$340
This KAYAK deal was found by Cheapflights users on 7/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/168:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Fri 8/281:20 pm
DUB
- STL
1 stop13h 04m
Aer Lingus
Deal found 7/14![Aer Lingus logo]()
$344
This KAYAK deal was found by Cheapflights users on 7/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:05 pm
STL
- DUB
1 stop31h 05m
Aer Lingus
Thu 11/121:00 pm
DUB
- STL
1 stop32h 26m
Aer Lingus
Deal found 7/15![Aer Lingus logo]()
$363
This KAYAK deal was found by Cheapflights users on 7/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Fri 8/211:20 pm
DUB
- STL
1 stop13h 04m
Aer Lingus
Deal found 7/15![Aer Lingus logo]()
$365
This KAYAK deal was found by Cheapflights users on 7/14. 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 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
Thu 8/271:20 pm
DUB
- STL
1 stop30h 42m
Aer Lingus
Deal found 7/14![Aer Lingus logo]()
$373
This KAYAK deal was found by Cheapflights users on 7/14. 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 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
Wed 8/261:20 pm
DUB
- STL
1 stop30h 42m
Aer Lingus
Deal found 7/14![Aer Lingus logo]()
$374
This KAYAK deal was found by Cheapflights users on 7/17. 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
Wed 8/191:20 pm
DUB
- STL
1 stop30h 42m
Aer Lingus
Deal found 7/17![Aer Lingus logo]()
$381
This KAYAK deal was found by Cheapflights users on 7/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:05 pm
STL
- DUB
1 stop31h 05m
Aer Lingus
Tue 11/171:00 pm
DUB
- STL
1 stop32h 26m
Aer Lingus
Deal found 7/14![Aer Lingus logo]()
$385
This KAYAK deal was found by Cheapflights users on 7/17. 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.
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 7/17![Aer Lingus logo]()
$394
This KAYAK deal was found by Cheapflights users on 7/14. 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 KAYAK 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 stop13h 00m
Aer Lingus
Deal found 7/14![Aer Lingus logo]()
$401
Best flights from St. Louis to DublinDiscover carefully curated flight deals from St. Louis to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
Discover carefully curated flight deals from St. Louis to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
This United Airlines deal was found by Cheapflights users on 7/18. 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.
Sun 10/257:33 am
STL
- DUB
1 stop19h 37m
United Airlines
Fri 11/69:00 am
DUB
- STL
2 stops31h 41m
United Airlines
Deal found 7/18![United Airlines logo]()
$679
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:47 am
STL
- DUB
1 stop17h 08m
Delta
Wed 11/45:45 am
DUB
- STL
2 stops23h 41m
Delta
Deal found 7/18![Delta logo]()
$702
This British Airways deal was found by Cheapflights users on 7/18. 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.
Mon 10/267:10 pm
STL
- DUB
2 stops15h 15m
British Airways
Wed 11/410:20 am
DUB
- STL
2 stops18h 09m
British Airways
Deal found 7/18![British Airways logo]()
$706
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Sun 11/1511:00 am
STL
- DUB
2 stops17h 20m
United Airlines
Thu 11/269:00 am
DUB
- STL
1 stop12h 26m
United Airlines
Deal found 7/15![United Airlines logo]()
$696
This Delta deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:15 am
STL
- DUB
1 stop19h 40m
Delta
Tue 9/298:55 am
DUB
- STL
2 stops20h 21m
Delta
Deal found 7/15![Delta logo]()
$756
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Sun 8/168:50 am
STL
- DUB
1 stop18h 55m
United Airlines
Tue 9/19:50 am
DUB
- STL
1 stop14h 52m
United Airlines
Deal found 7/17![United Airlines logo]()
$746
This Delta deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:47 am
STL
- DUB
1 stop16h 08m
Delta
Wed 10/148:55 am
DUB
- STL
2 stops20h 53m
Delta
Deal found 7/15![Delta logo]()
$806
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Mon 8/1712:10 pm
STL
- DUB
1 stop13h 35m
United Airlines
Tue 9/19:50 am
DUB
- STL
1 stop14h 52m
United Airlines
Deal found 7/14![United Airlines logo]()
$747
This United Airlines deal was found by Cheapflights users on 7/18. 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.
Wed 9/21:00 pm
STL
- DUB
1 stop12h 20m
United Airlines
Wed 9/99:20 am
DUB
- STL
1 stop10h 40m
United Airlines
Deal found 7/18![United Airlines logo]()
$754
This United Airlines deal was found by Cheapflights users on 7/14. 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 8/1910:53 am
STL
- DUB
2 stops14h 27m
United Airlines
Wed 8/269:30 am
DUB
- STL
2 stops15h 46m
United Airlines
Deal found 7/14![United Airlines logo]()
$772
This United Airlines deal was found by Cheapflights users on 7/14. 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 8/155:30 pm
STL
- DUB
2 stops32h 45m
United Airlines
Sun 9/69:20 am
DUB
- STL
1 stop10h 42m
United Airlines
Deal found 7/14![United Airlines logo]()
$807
Last-minute flights from St. Louis to DublinDiscover last-minute flight deals from St. Louis to Dublin. Data last updated July 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Dublin. Data last updated July 19, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 7/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Fri 8/211:20 pm
DUB
- STL
1 stop13h 04m
Aer Lingus
Deal found 7/15![Aer Lingus logo]()
$365
This KAYAK deal was found by Cheapflights users on 7/17. 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
Wed 8/191:20 pm
DUB
- STL
1 stop30h 42m
Aer Lingus
Deal found 7/17![Aer Lingus logo]()
$381
This KAYAK deal was found by Cheapflights users on 7/18. 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.
Thu 8/138:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Thu 8/201:20 pm
DUB
- STL
1 stop30h 42m
Aer Lingus
Deal found 7/18![Aer Lingus logo]()
$414
This KAYAK deal was found by Cheapflights users on 7/17. 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.
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 7/17![Aer Lingus logo]()
$394
This KAYAK deal was found by Cheapflights users on 7/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/168:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Fri 8/281:20 pm
DUB
- STL
1 stop13h 04m
Aer Lingus
Deal found 7/14![Aer Lingus logo]()
$344
This KAYAK deal was found by Cheapflights users on 7/14. 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 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
Thu 8/271:20 pm
DUB
- STL
1 stop30h 42m
Aer Lingus
Deal found 7/14![Aer Lingus logo]()
$373
This KAYAK deal was found by Cheapflights users on 7/14. 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 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
Wed 8/261:20 pm
DUB
- STL
1 stop30h 42m
Aer Lingus
Deal found 7/14![Aer Lingus logo]()
$374
One-way flights from St. Louis to DublinSearch for one-way flight options from St. Louis to Dublin. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
Search for one-way flight options from St. Louis to Dublin. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
This KAYAK deal was found by Cheapflights users on 7/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Deal found 7/14![Aer Lingus logo]()
$225
This Ovago deal was found by Cheapflights users on 7/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Deal found 7/16![Aer Lingus logo]()
$226
This KAYAK deal was found by Cheapflights users on 7/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Deal found 7/14![Aer Lingus logo]()
$235
This KAYAK deal was found by Cheapflights users on 7/18. 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.
Sat 8/158:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Deal found 7/18![Aer Lingus logo]()
$275
This Ovago deal was found by Cheapflights users on 7/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:55 am
STL
- DUB
1 stop14h 15m
Aer Lingus
Deal found 7/16![Aer Lingus logo]()
$276
This KAYAK deal was found by Cheapflights users on 7/14. 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 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
Deal found 7/14![Aer Lingus logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 8/154:57 pm
STL
- DUB
3 stops59h 18m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Thu 8/206:17 pm
STL
- DUB
3 stops55h 38m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 9/1510:35 am
STL
- DUB
3 stops40h 45m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Sun 8/306:17 pm
STL
- DUB
3 stops34h 28m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$381
Find flight deals from St. Louis to Dublin
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $336 (KAYAK) |
One-way from | $225 (KAYAK) |
Popular in | December |
Cheapest in | September |
Average price | $952 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Dublin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 19, 2026.
Use the filters below to find and compare flights from St. Louis to Dublin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Sun 10/25
7:33 am-8:10 am
1 stop19h 37m
Dublin
Fri 11/6
9:00 am-10:41 am
2 stops31h 41m
$679
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Sun 11/15
11:00 am-10:20 am
2 stops17h 20m
Dublin
Thu 11/26
9:00 am-3:26 pm
1 stop12h 26m
$696
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Mon 10/26
9:47 am-7:55 am
1 stop17h 08m
Dublin
Wed 11/4
5:45 am-11:26 pm
2 stops23h 41m
$702
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Mon 10/26
7:10 pm-3:25 pm
2 stops15h 15m
Dublin
Wed 11/4
10:20 am-10:29 pm
2 stops18h 09m
$706
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Sun 8/16
8:50 am-9:45 am
1 stop18h 55m
Dublin
Tue 9/1
9:50 am-6:42 pm
1 stop14h 52m
$746
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Mon 8/17
12:10 pm-7:45 am
1 stop13h 35m
Dublin
Tue 9/1
9:50 am-6:42 pm
1 stop14h 52m
$747
Quickest round-trip
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Wed 9/2
1:00 pm-7:20 am
1 stop12h 20m
Dublin
Wed 9/9
9:20 am-2:00 pm
1 stop10h 40m
$754
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Wed 9/23
6:15 am-7:55 am
1 stop19h 40m
Dublin
Tue 9/29
8:55 am-11:16 pm
2 stops20h 21m
$756
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Wed 8/19
10:53 am-7:20 am
2 stops14h 27m
Dublin
Wed 8/26
9:30 am-7:16 pm
2 stops15h 46m
$772
St. LouisDublin
STL - DUB
STLDUB
Lambert-St Louis
Thu 10/8
9:47 am-7:55 am
1 stop16h 08m
Dublin
Wed 10/14
8:55 am-11:48 pm
2 stops20h 53m
$806
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Dublin
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Dublin in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on St. Louis-Dublin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Dublin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Dublin flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Dublin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Dublin
Have a flexible travel schedule? Discover the best time to fly to Dublin from St. Louis with our price prediction graph.
STL-DUB
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 Dublin
How far ahead should I book a flight from St. Louis to Dublin?
To ensure you get the cheapest price possible for a flight from St. Louis to Dublin, you should look to book at least 61 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.
What is the cheapest month to book a flight from St. Louis to Dublin?
Currently, September is the cheapest month in which you can book a flight from St. Louis to Dublin (average of $414). Flying from St. Louis to Dublin in December is currently the most expensive (average of $1,279). 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 much does it cost to fly round-trip from St. Louis to Dublin?
Reviews of airlines servicing Dublin
Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated July 19, 2026.
See what other customers who have flown with Delta,United Airlines, andAer Lingus from St. Louis to Dublin have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Boarding
8.1
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 Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Dublin?
Book flights to Dublin if you plan to visit one of these locationsCastleknock
Browse thousands of different options on Cheapflights for your next trip
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Complete your trip
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Other flights to Dublin
Explore flights to Dublin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 19, 2026.
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St. Louis and Dublin flights
Browse other St. Louis and Dublin flight options. Last updated on July 19, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on July 19, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 9 airlines flying from St. Louis to Dublin
Discover the top 9 airlines that operate flights from St. Louis to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$325 | Average$390 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$429 | Average$597 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$430 | Average$637 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$471 | Average$741 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$474 | Average$701 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$482 | Average$690 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$484 | Average$756 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$488 | Average$812 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$532 | Average$786 | FlexibilityNo cancel fee | On-time75% |