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St. Louis

$358+ Cheap flights from Dublin (DUB) 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — STL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Dublin to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to St. Louis (STL). 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 September 11, 2025.

Round-trip from

$613
(Scandinavian Airlines)

One-way from

$358
(Kiwi.com)

Popular in

July

Cheapest in

August

Average price

$900
From Dublin to Lambert-St Louis
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One-way flight from Dublin to Lambert-St Louis
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Highest demand for flights based on searches. 3% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Dublin to St. Louis

Cheapest flights from Dublin to St. Louis
Explore the most affordable flight options available from Dublin to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 12/412:30 pmDUB - STL
2 stops38h 33mScandinavian Airlines
Mon 12/81:55 pmSTL - DUB
2 stops39h 50mScandinavian Airlines
Deal found 9/10$613
This lastminute.com deal was found by Cheapflights users on 9/11. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2610:10 amDUB - STL
2 stops42h 31mScandinavian Airlines
Sat 11/83:59 pmSTL - DUB
2 stops37h 46mScandinavian Airlines
Deal found 9/11$765
This Delta deal was found by Cheapflights users on 9/11. 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.
Fri 11/218:50 amDUB - STL
2 stops17h 56mDelta
Sat 11/292:36 pmSTL - DUB
2 stops19h 09mDelta
Deal found 9/11$898
This Delta deal was found by Cheapflights users on 9/10. 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.
Fri 9/265:55 amDUB - STL
2 stops20h 39mDelta
Sun 10/53:36 pmSTL - DUB
1 stop11h 09mDelta
Deal found 9/10$908
This KLM deal was found by Cheapflights users on 9/11. 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 10/269:45 amDUB - STL
1 stop18h 56mKLM
Sat 11/84:10 pmSTL - DUB
1 stop10h 35mKLM
Deal found 9/11$911
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/411:30 amDUB - STL
1 stop14h 51mAmerican Airlines
Mon 12/810:13 amSTL - DUB
2 stops16h 27mAmerican Airlines
Deal found 9/9$914

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dublin 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 September 11, 2025.
Use the filters below to find and compare flights from Dublin to St. Louis that are best for you.

Fly from

Dublin

Fly to

St. Louis

Route

Depart

Return

Price

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 12/4

12:30 pm-9:03 pm

2 stops38h 33m

Lambert-St Louis

Mon 12/8

1:55 pm-11:45 am

2 stops39h 50m

$613

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 10/26

10:10 am-11:41 pm

2 stops42h 31m

Lambert-St Louis

Sat 11/8

3:59 pm-11:45 am

2 stops37h 46m

$765

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 11/21

8:50 am-8:46 pm

2 stops17h 56m

Lambert-St Louis

Sat 11/29

2:36 pm-3:45 pm

2 stops19h 09m

$898

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 11/21

8:50 am-10:34 pm

2 stops19h 44m

Lambert-St Louis

Sat 11/29

2:17 pm-12:45 pm

2 stops16h 28m

$908

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 9/26

5:55 am-8:34 pm

2 stops20h 39m

Lambert-St Louis

Sun 10/5

3:36 pm-8:45 am

1 stop11h 09m

$908

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 10/26

9:45 am-11:41 pm

1 stop18h 56m

Lambert-St Louis

Sat 11/8

4:10 pm-3:45 pm

2 stops17h 35m

$908

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 10/26

9:45 am-11:41 pm

1 stop18h 56m

Lambert-St Louis

Sat 11/8

4:10 pm-8:45 am

1 stop10h 35m

$911

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 12/4

11:30 am-7:30 pm

2 stops14h 00m

Lambert-St Louis

Mon 12/8

6:00 am-8:40 am

1 stop20h 40m

$911

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 9/20

6:05 pm-3:04 pm

3 stops50h 59m

$358

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 9/20

12:40 pm-8:15 pm

1 stop13h 35m

$743

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Dublin to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Dublin 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 Dublin to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from Dublin to St. Louis (average of $311). Flying from Dublin to St. Louis in March is currently the most expensive (average of $356). 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 Dublin to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For as low as $898, Scandinavian Airlines can have you in St. Louis from Dublin in 17h 56m. There are 3909 mi between Dublin and St. Louis. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dublin 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 Dublin to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Dublin to St. Louis (average of $311). Flying from Dublin to St. Louis in March is currently the most expensive (average of $356). 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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