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St. Louis

$330+ 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
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:40 amDUB - STL
1 stop13h 14mUnited Airlines
Tue 1/203:11 pmSTL - DUB
1 stop10h 59mUnited Airlines
Deal found 12/10$854
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:40 amDUB - STL
1 stop13h 14mUnited Airlines
Wed 1/143:11 pmSTL - DUB
1 stop10h 59mUnited Airlines
Deal found 12/10$879
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:40 amDUB - STL
1 stop13h 14mUnited Airlines
Tue 1/203:11 pmSTL - DUB
1 stop10h 59mUnited Airlines
Deal found 12/10$888
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:40 amDUB - STL
1 stop13h 14mUnited Airlines
Wed 1/143:11 pmSTL - DUB
1 stop10h 59mUnited Airlines
Deal found 12/10$913
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:40 amDUB - STL
1 stop11h 47mUnited Airlines
Thu 1/1511:20 amSTL - DUB
1 stop14h 50mUnited Airlines
Deal found 12/10$925
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:40 amDUB - STL
1 stop13h 14mUnited Airlines
Fri 1/163:11 pmSTL - DUB
1 stop10h 59mUnited Airlines
Deal found 12/10$968
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:40 amDUB - STL
1 stop13h 14mUnited Airlines
Fri 1/163:11 pmSTL - DUB
1 stop10h 59mUnited Airlines
Deal found 12/10$1,002
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:40 amDUB - STL
1 stop13h 14mUnited Airlines
Sun 1/181:15 pmSTL - DUB
1 stop12h 55mUnited Airlines
Deal found 12/10$1,017
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:40 amDUB - STL
1 stop13h 14mUnited Airlines
Wed 1/143:11 pmSTL - DUB
1 stop10h 59mUnited Airlines
Deal found 12/10$1,042
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:40 amDUB - STL
1 stop13h 14mUnited Airlines
Thu 1/1511:20 amSTL - DUB
1 stop14h 50mUnited Airlines
Deal found 12/10$1,088
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2810:40 amDUB - STL
1 stop11h 47mUnited Airlines
Sun 1/1811:20 amSTL - DUB
1 stop14h 50mUnited Airlines
Deal found 12/10$1,224
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2810:40 amDUB - STL
1 stop11h 47mUnited Airlines
Wed 1/1411:20 amSTL - DUB
1 stop14h 50mUnited Airlines
Deal found 12/10$1,249

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$842
(Trip.com)

One-way from

$330
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$1,062
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. 4% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 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

Mon 12/29

10:40 am-4:27 pm

1 stop11h 47m

Lambert-St Louis

Sat 1/17

3:11 pm-8:10 am

1 stop10h 59m

$854

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 12/29

10:40 am-4:27 pm

1 stop11h 47m

Lambert-St Louis

Mon 1/19

3:11 pm-8:10 am

1 stop10h 59m

$854

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 12/27

10:40 am-5:54 pm

1 stop13h 14m

Lambert-St Louis

Sun 1/18

3:11 pm-8:10 am

1 stop10h 59m

$854

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 12/27

10:40 am-4:27 pm

1 stop11h 47m

Lambert-St Louis

Mon 1/19

3:11 pm-8:10 am

1 stop10h 59m

$854

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 12/27

10:40 am-5:54 pm

1 stop13h 14m

Lambert-St Louis

Tue 1/20

3:11 pm-8:10 am

1 stop10h 59m

$854

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 12/27

10:40 am-5:54 pm

1 stop13h 14m

Lambert-St Louis

Wed 1/14

3:11 pm-8:10 am

1 stop10h 59m

$879

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 12/29

10:40 am-5:54 pm

1 stop13h 14m

Lambert-St Louis

Tue 1/20

3:11 pm-8:10 am

1 stop10h 59m

$888

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 1/24

1:25 pm-1:55 pm

3 stops30h 30m

Lambert-St Louis

Sat 1/31

4:05 pm-5:55 pm

3 stops19h 50m

$889

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 12/29

10:40 am-5:54 pm

1 stop13h 14m

Lambert-St Louis

Wed 1/14

3:11 pm-8:10 am

1 stop10h 59m

$913

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 1/24

7:35 am-6:34 pm

2 stops16h 59m

Lambert-St Louis

Sat 1/31

1:40 pm-9:50 am

2 stops14h 10m

$919

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 21 results
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Compare providers for flights from Dublin to St. Louis

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 Dublin to St. Louis in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Dublin-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Dublin-St. Louis flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

How much does it cost to fly round-trip from Dublin to St. Louis?

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 $854, United Airlines can have you in St. Louis from Dublin in 11h 47m. There are 3909 mi between Dublin and St. Louis.

  • 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
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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