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St. Louis

$338+ 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — STL
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/25. 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 3/116:05 pm
DUB
-
STL
2 stops34h 14m
Multiple Airlines
Wed 3/184:50 pm
STL
-
DUB
1 stop13h 10m
Multiple Airlines
Deal found 1/25$800
This Finnair deal was found by Cheapflights users on 1/26. 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.
Wed 5/69:30 am
DUB
-
STL
1 stop16h 00m
Finnair
Wed 5/204:46 pm
STL
-
DUB
1 stop13h 04m
Finnair
Deal found 1/26$844
This Mytrip deal was found by Cheapflights users on 1/26. 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.
Thu 9/246:00 pm
DUB
-
STL
1 stop31h 30m
Multiple Airlines
Mon 9/283:30 pm
STL
-
DUB
1 stop14h 10m
Multiple Airlines
Deal found 1/26$866
This American Airlines deal was found by Cheapflights users on 1/24. 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.
Fri 2/2711:30 am
DUB
-
STL
2 stops32h 20m
American Airlines
Tue 3/32:21 pm
STL
-
DUB
2 stops20h 39m
American Airlines
Deal found 1/24$887
This Trip.com deal was found by Cheapflights users on 1/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:30 am
DUB
-
STL
1 stop16h 00m
Finnair
Mon 5/114:46 pm
STL
-
DUB
1 stop13h 04m
Finnair
Deal found 1/27$894
This American Airlines deal was found by Cheapflights users on 1/26. 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.
Mon 2/211:30 am
DUB
-
STL
2 stops15h 45m
American Airlines
Sun 2/152:00 pm
STL
-
DUB
1 stop12h 40m
American Airlines
Deal found 1/26$897
This American Airlines deal was found by Cheapflights users on 1/27. 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 2/511:30 am
DUB
-
STL
1 stop17h 14m
American Airlines
Wed 2/182:00 pm
STL
-
DUB
1 stop12h 40m
American Airlines
Deal found 1/27$899
This Iberia deal was found by Cheapflights users on 1/25. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1111:30 am
DUB
-
STL
1 stop16h 32m
Iberia
Wed 3/182:00 pm
STL
-
DUB
1 stop13h 40m
Iberia
Deal found 1/25$918

Find 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$800
(Kiwi.com)

One-way from

$338
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$1,217
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 Dublin to Lambert-St Louis
Search Deals
One-way flight from Dublin to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 27, 2026.
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

Wed 5/6

9:30 am-7:30 pm

1 stop16h 00m

Lambert-St Louis

Wed 5/20

4:46 pm-11:50 am

1 stop13h 04m

$844

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 2/27

11:30 am-12:33 pm

1 stop31h 03m

Lambert-St Louis

Tue 3/3

2:21 pm-5:00 pm

2 stops20h 39m

$887

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 2/21

11:30 am-9:12 pm

2 stops15h 42m

Lambert-St Louis

Sat 2/28

1:30 pm-9:50 am

2 stops14h 20m

$897

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 3/11

11:30 am-11:02 pm

1 stop16h 32m

Lambert-St Louis

Wed 3/18

2:00 pm-8:40 am

1 stop13h 40m

$918

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 2/9

6:20 am-6:51 am

3 stops54h 31m

$338

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 5/18

12:10 pm-6:50 am

3 stops48h 40m

$444

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 5/19

6:30 am-6:50 am

3 stops30h 20m

$445

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 2/8

5:45 am-11:33 pm

3 stops47h 48m

$466

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 6/8

7:25 am-3:50 pm

3 stops38h 25m

$531

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 5/20

1:15 pm-11:57 pm

3 stops40h 42m

$536

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 15 results
1
2
  • Most accurate provider: When it comes to deals on Dublin-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dublin-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Dublin-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dublin-St. Louis 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 Dublin-St. Louis 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 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, September is the cheapest month in which you can book a flight from Dublin to St. Louis (average of $628). Flying from Dublin to St. Louis in January is currently the most expensive (average of $1,117). 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 $844, Finnair can have you in St. Louis from Dublin in 16h. 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, September is the cheapest month in which you can book a flight from Dublin to St. Louis (average of $628). Flying from Dublin to St. Louis in January is currently the most expensive (average of $1,117). 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

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