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$371+ 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
may. 6 — may. 131
mié. 5/6
mié. 5/13
1 adult, Economy
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Cheap flight deals from St. Louis to Dublin

Cheapest flights from St. Louis to Dublin
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 abril 6, 2026.

This Gotogate deal was found by Cheapflights users on 4/3. 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.
mié. 8/1912:10 pm
STL
-
DUB
1 stop13h 35m
Multiple Airlines
mié. 9/25:55 am
DUB
-
STL
1 stop13h 30m
Multiple Airlines
Deal found 4/3$672
This Gotogate deal was found by Cheapflights users on 4/1. 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. 8/1712:10 pm
STL
-
DUB
1 stop13h 35m
Multiple Airlines
mié. 8/265:55 am
DUB
-
STL
1 stop13h 30m
Multiple Airlines
Deal found 4/1$673
This Gotogate deal was found by Cheapflights users on 4/1. 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. 8/1712:10 pm
STL
-
DUB
1 stop13h 35m
Multiple Airlines
mar. 8/256:00 am
DUB
-
STL
1 stop13h 25m
Multiple Airlines
Deal found 4/1$674
This United Airlines deal was found by Cheapflights users on 4/3. 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.
mié. 8/1912:10 pm
STL
-
DUB
1 stop13h 35m
United Airlines
mié. 9/29:20 am
DUB
-
STL
2 stops38h 29m
United Airlines
Deal found 4/3$682
This United Airlines deal was found by Cheapflights users on 4/1. 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.
mié. 7/229:23 am
STL
-
DUB
1 stop18h 22m
United Airlines
mié. 8/199:20 am
DUB
-
STL
2 stops38h 29m
United Airlines
Deal found 4/1$683
This United Airlines deal was found by Cheapflights users on 4/5. 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.
mar. 9/15:32 pm
STL
-
DUB
2 stops32h 13m
United Airlines
mié. 9/99:20 am
DUB
-
STL
2 stops44h 30m
United Airlines
Deal found 4/5$687
This Air Canada deal was found by Cheapflights users on 4/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/1612:10 pm
STL
-
DUB
1 stop13h 35m
Air Canada
mar. 8/259:50 am
DUB
-
STL
1 stop14h 52m
Air Canada
Deal found 4/6$691
This United Airlines deal was found by Cheapflights users on 4/1. 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.
mar. 8/115:10 am
STL
-
DUB
2 stops20h 35m
United Airlines
mié. 8/199:20 am
DUB
-
STL
1 stop16h 47m
United Airlines
Deal found 4/1$692
This Booking.com deal was found by Cheapflights users on 4/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/1712:10 pm
STL
-
DUB
1 stop13h 35m
Air Canada
mié. 8/269:20 am
DUB
-
STL
1 stop10h 42m
Air Canada
Deal found 4/3$696

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 abril 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$672
(Gotogate)

One-way from

$371
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$702
Provider with most accurate pricing for Lambert-St Louis-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Dublin flights.
Search Deals
From Lambert-St Louis to Dublin
Search Deals
One-way flight from Lambert-St Louis to Dublin
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($197 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 abril 6, 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

Price

Cheapest round-trip

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mar. 8/11

8:00 am-9:45 am

1 stop19h 45m

Dublin

mié. 8/19

9:20 am-2:02 pm

1 stop10h 42m

$697

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mar. 9/8

8:44 am-7:20 am

1 stop16h 36m

Dublin

mié. 9/16

9:20 am-2:00 pm

1 stop10h 40m

$697

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

dom. 9/6

3:42 pm-10:00 am

2 stops12h 18m

Dublin

dom. 9/13

5:55 am-8:31 pm

2 stops20h 36m

$762

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mar. 5/5

7:25 am-9:15 am

2 stops19h 50m

Dublin

mar. 5/12

5:55 am-9:09 pm

2 stops21h 14m

$769

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

vie. 5/1

5:25 pm-11:10 am

1 stop11h 45m

Dublin

vie. 5/8

9:20 am-8:09 pm

1 stop16h 49m

$804

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

lun. 9/14

5:00 am-7:45 am

2 stops20h 45m

Dublin

lun. 9/28

9:20 am-6:41 pm

1 stop15h 21m

$871

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mié. 4/22

7:25 am-8:45 am

1 stop19h 20m

Dublin

mié. 5/13

11:10 am-11:21 pm

2 stops18h 11m

$894
Quickest round-trip

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

lun. 7/13

6:04 pm-9:15 am

1 stop9h 11m

Dublin

jue. 7/23

12:00 pm-11:22 pm

1 stop17h 22m

$942

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

vie. 4/24

12:23 pm-7:55 am

1 stop13h 32m

Dublin

mar. 5/5

11:00 am-9:19 pm

1 stop16h 19m

$947

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

vie. 4/24

11:42 am-9:15 am

2 stops15h 33m

Dublin

mar. 5/5

5:55 am-2:29 pm

2 stops14h 34m

$948

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/5

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 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.
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?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Dublin. Price data was last updated on April 3, 2026.

To ensure you get the cheapest price possible for a flight from St. Louis to Dublin, you should look to book at least 42 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, October is the cheapest month in which you can book a flight from St. Louis to Dublin (average of $397). Flying from St. Louis to Dublin in June is currently the most expensive (average of $714). 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 abril 6, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines 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.
Delta
7.9
Good
8,387 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,387 reviews
Delta
7.9
Good
8,387 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,547 reviews
Delta
7.9
Good
8,387 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,549 reviews
Delta
7.9
Good
8,387 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,897 reviews
Delta
7.9
Good
8,387 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Iberia
7.0
Good
3,165 reviews
Delta
7.9
Good
8,387 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

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

    Airlines like United Airlines fly from St. Louis to Dublin in about 13h 35m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3909 mi.

  • What are the cheapest airlines flying from St. Louis to Dublin round-trip?

    According to our current data, KLM ($412), British Airways ($418), and Lufthansa ($430) offers the cheapest pricing from St. Louis to Dublin. KLM is 43% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from St. Louis to Dublin one-way?

    $314 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $318 and $334, respectively.

  • Where are the most common layover locations when flying from St. Louis to Dublin?

    Most of the time, St. Louis to Dublin flights that have layovers will stop in Chicago.

  • What are some popular things to do or see while on a layover in Chicago?

    Chicago travelers tend to visit Magnificent Mile, Grant Park, and River North more than anywhere else. Magnificent Mile, Grant Park, and River North are located about 15.5 mi, 16.2 mi, and 15.0 mi, respectively from Chicago O'Hare Intl. Travelers can book a car rental at Chicago O'Hare Intl for about $56 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for St. Louis to Dublin flights?

    Of the flights from St. Louis to Dublin that have layovers, the fewest flights stop in Toronto.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Dublin (average of $397). Flying from St. Louis to Dublin in June is currently the most expensive (average of $714). 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 Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Leixlip

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Alternative routes for St. Louis to Dublin

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Dublin flights
St. Louis to Shannon flights
St. Louis to Cork flights
Springfield to Dublin flights
Springfield to Shannon flights

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 abril 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$412Average$631FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$418Average$556FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$430Average$650FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$456Average$726FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$462Average$722FlexibilityNo cancel feeOn-time69%
IberiaCheapest$466Average$614FlexibilityNo cancel feeOn-time77%
DeltaCheapest$483Average$728FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$488Average$797FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$714Average$909FlexibilityNo cancel feeOn-timeN/A

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