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St. Louis

$435+ Cheap flights from Ireland to St. Louis (STL)

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — STL
nov 30 — dic 71
dom 11/30
dom 12/7
1 adult, Economy
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Find flight deals from Ireland to St. Louis

Cheapest flights from Ireland to St. Louis
Explore the most affordable flight options available from Ireland to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on ottobre 31, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 12/412:30 pmDUB - STL
2 stops41h 12mScandinavian Airlines
lun 12/81:57 pmSTL - DUB
2 stops39h 48mScandinavian Airlines
Deal found 10/30$689
This Cheapflightsfares deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 11/267:35 amDUB - STL
2 stops22h 21mAer Lingus
mer 12/311:04 amSTL - DUB
2 stops23h 31mAer Lingus
Deal found 10/29$797
This Gotogate deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 11/247:35 amDUB - STL
2 stops22h 21mAer Lingus
mar 12/91:43 pmSTL - DUB
2 stops14h 32mAer Lingus
Deal found 10/29$875
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 11/195:10 amDUB - STL
1 stop14h 45mLufthansa
gio 11/271:10 pmSTL - DUB
1 stop15h 10mLufthansa
Deal found 10/30$893
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 11/196:05 pmDUB - STL
2 stops35h 52mMultiple Airlines
gio 11/278:39 amSTL - DUB
1 stop14h 31mMultiple Airlines
Deal found 10/30$906
This Lufthansa deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 11/95:10 amDUB - STL
1 stop14h 45mLufthansa
sab 11/225:23 pmSTL - DUB
1 stop10h 32mLufthansa
Deal found 10/30$915
This Lufthansa deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 11/265:10 amDUB - STL
1 stop14h 45mLufthansa
mer 12/31:00 pmSTL - DUB
1 stop13h 10mLufthansa
Deal found 10/29$917
This Lufthansa deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 11/2411:45 amDUB - STL
2 stops17h 59mLufthansa
mar 12/91:00 pmSTL - DUB
1 stop13h 10mLufthansa
Deal found 10/29$922

Cheap flight deals from Ireland to St. Louis

Keep the following information in mind while searching for Ireland to St. Louis flight deals. Data was last updated ottobre 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$689
(Scandinavian Airlines)

One-way from

$435
(Cheapflightsfares)

Popular in

July

Cheapest in

August

Average price

$1,017
Provider with most accurate pricing for Dublin-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dublin-Lambert-St Louis flights.
Search Deals
From Ireland to Lambert-St Louis
Search Deals
One-way flight from Ireland to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ireland to St. Louis 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 ottobre 31, 2025.
Use the filters below to find and compare flights from Ireland to St. Louis that are best for you.

Fly from

Ireland

Fly to

St. Louis

Route

Depart

Return

Price

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

gio 12/4

12:30 pm-11:42 pm

2 stops41h 12m

Lambert-St Louis

lun 12/8

1:57 pm-11:45 am

2 stops39h 48m

$689

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

lun 11/24

7:35 am-11:56 pm

2 stops22h 21m

Lambert-St Louis

mar 12/9

1:43 pm-10:15 am

2 stops14h 32m

$875

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

mer 11/26

11:30 am-11:04 pm

1 stop17h 34m

Lambert-St Louis

mer 12/3

11:04 am-4:35 pm

2 stops23h 31m

$892

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

mer 11/19

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

gio 11/27

1:10 pm-10:20 am

1 stop15h 10m

$893

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

mer 11/19

6:05 pm-11:57 pm

2 stops35h 52m

Lambert-St Louis

gio 11/27

8:39 am-5:10 am

1 stop14h 31m

$906

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

dom 11/9

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

sab 11/22

5:23 pm-9:55 am

1 stop10h 32m

$915

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

mer 11/26

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

mer 12/3

1:00 pm-8:10 am

1 stop13h 10m

$917

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

lun 11/24

11:45 am-11:44 pm

2 stops17h 59m

Lambert-St Louis

mar 12/9

1:00 pm-8:10 am

1 stop13h 10m

$922

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

sab 11/15

9:00 am-3:29 pm

1 stop12h 29m

Lambert-St Louis

mer 11/19

1:10 pm-9:55 am

2 stops14h 45m

$930

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

mer 4/15

12:00 pm-11:24 pm

2 stops17h 24m

$435

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 13 results
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Best time to book a flight from Ireland to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Ireland with our price prediction graph.
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 Ireland to St. Louis

What is the cheapest month to book a flight from Ireland to St. Louis?

Currently, September is the cheapest month in which you can book a flight from Ireland to St. Louis (average of $628). Flying from Ireland to St. Louis in June is currently the most expensive (average of $962). 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.

Related info for your journey

Find useful and relevant information for your journey from Ireland to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Ireland?

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from Ireland to St. Louis. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

  • How long is the flight from Ireland to St. Louis?

    A quick flight from Ireland to St. Louis can take about 14h 45m. Scandinavian Airlines provides one of the quickest options available for as low as $893. The distance from Ireland to St. Louis is about 3909 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Ireland to St. Louis that include hotel bookings?

    Yes. In addition to deals on Ireland to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ireland to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to St. Louis.

  • Can I find deals for business class flights from Ireland to St. Louis?

    Yes. Cheapflights offers flight deals from Ireland to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ireland to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Ireland to St. Louis (average of $628). Flying from Ireland to St. Louis in June is currently the most expensive (average of $962). 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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