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$345+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
Dez 21 — Dez 281
So 12/21
So 12/28
1 adult, Economy
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Find 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 November 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Do 12/411:50 amSTL - DUB
1 stop13h 40mAustrian Airlines
Mo 12/89:30 amDUB - STL
1 stop20h 12mAustrian Airlines
Deal found 11/19$431
This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Fr 12/51:00 pmSTL - DUB
1 stop13h 10mLufthansa
Mi 12/1010:40 amDUB - STL
1 stop12h 23mLufthansa
Deal found 11/19$432
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Do 12/48:00 amSTL - DUB
1 stop18h 10mUnited Airlines
Mo 12/89:00 amDUB - STL
2 stops37h 28mUnited Airlines
Deal found 11/19$455
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Fr 12/51:00 pmSTL - DUB
2 stops14h 55mUnited Airlines
Mi 12/109:00 amDUB - STL
2 stops42h 58mUnited Airlines
Deal found 11/19$460
This FlightHub deal was found by Cheapflights users on 11/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 12/511:50 amSTL - DUB
1 stop13h 40mMultiple Airlines
Mi 12/109:00 amDUB - STL
1 stop12h 29mMultiple Airlines
Deal found 11/20$466
This Expedia deal was found by Cheapflights users on 11/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 12/21:00 pmSTL - DUB
1 stop13h 10mLufthansa
Di 12/99:10 amDUB - STL
2 stops20h 32mLufthansa
Deal found 11/20$468
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Sa 12/1312:55 pmSTL - DUB
1 stop15h 25mUnited Airlines
Mi 12/2410:40 amDUB - STL
1 stop11h 47mUnited Airlines
Deal found 11/19$474
This Booking.com deal was found by Cheapflights users on 11/18. 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.
Di 12/96:30 amSTL - DUB
2 stops18h 40mMultiple Airlines
Di 12/169:30 amDUB - STL
1 stop20h 12mMultiple Airlines
Deal found 11/18$481
This Austrian Airlines deal was found by Cheapflights users on 11/18. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 12/511:50 amSTL - DUB
1 stop13h 40mAustrian Airlines
Di 12/99:30 amDUB - STL
1 stop20h 12mAustrian Airlines
Deal found 11/18$483
This KAYAK deal was found by Cheapflights users on 11/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 12/1011:50 amSTL - DUB
1 stop13h 40mLufthansa
Sa 12/209:15 amDUB - STL
1 stop34h 40mLufthansa
Deal found 11/19$486
This Delta deal was found by Cheapflights users on 11/18. 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.
Fr 12/511:40 amSTL - DUB
1 stop14h 05mDelta
Di 12/910:45 amDUB - STL
2 stops16h 02mDelta
Deal found 11/18$488

Cheap 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 November 21, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$431
(Kiwi.com)

One-way from

$345
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$600
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. 22% potential increase in price ($249 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 21, 2025.
Use the filters below to find and compare flights from St. Louis to Dublin that are best for you.

Fly from

St. Louis

Fly to

Dublin

Route

Depart

Return

Price

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Do 1/22

9:57 am-8:10 am

1 stop16h 13m

Dublin

Mo 1/26

9:00 am-10:00 pm

2 stops43h 00m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fr 12/5

1:00 pm-8:10 am

1 stop13h 10m

Dublin

Mi 12/10

9:00 am-9:58 pm

2 stops42h 58m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Do 12/4

8:00 am-8:10 am

1 stop18h 10m

Dublin

Mo 12/8

9:00 am-4:28 pm

2 stops37h 28m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Do 12/4

1:00 pm-10:20 am

2 stops15h 20m

Dublin

Mi 12/10

9:00 am-9:58 pm

2 stops42h 58m

$460

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Do 1/8

9:57 am-8:10 am

1 stop16h 13m

Dublin

Mi 1/21

9:00 am-11:59 pm

2 stops20h 59m

$469

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Di 1/6

6:40 pm-8:10 am

1 stop31h 30m

Dublin

Mi 1/21

9:00 am-3:29 pm

1 stop12h 29m

$469

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sa 12/13

6:00 am-7:45 am

1 stop19h 45m

Dublin

Mi 12/24

9:45 am-7:04 pm

1 stop15h 19m

$474

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mi 1/7

3:11 pm-8:10 am

1 stop10h 59m

Dublin

So 1/25

9:30 am-4:30 pm

1 stop13h 00m

$474

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mo 12/8

10:47 am-5:45 pm

3 stops48h 58m

$345

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sa 12/13

3:30 pm-10:50 am

3 stops37h 20m

$366

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 16 results
1
2

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice 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 St. Louis-Dublin flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on St. Louis-Dublin flight deals on Cheapflights vs. Justfly.com >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 Justfly.com the most. Justfly.com 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 November 14, 2025.

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 $718). 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.

What is the cheapest time of day to fly from STL to DUB?

Find hourly flight availability from St. Louis to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2025.

One of the essential ways to save on airfare from St. Louis to Dublin is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 47% on airfare.

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 November 21, 2025.
See what other customers who have flown with Delta, United Airlines, and American 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
8,002 reviews

Boarding

8.1

Food

7.3

Entertainment

7.9

Overall

7.9

Comfort

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
8,002 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Food

7.3

Entertainment

7.9

Overall

7.9

Comfort

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
9,028 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Food

7.3

Entertainment

7.9

Overall

7.9

Comfort

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
7.2
Good
11,047 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Food

7.3

Entertainment

7.9

Overall

7.9

Comfort

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
10,463 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Food

7.3

Entertainment

7.9

Overall

7.9

Comfort

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
3,027 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Food

7.3

Entertainment

7.9

Overall

7.9

Comfort

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 16h 13m. 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), Air Canada ($462), and British Airways ($463) offers the cheapest pricing from St. Louis to Dublin. KLM is 51% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, River North, and Grant Park more than anywhere else. Magnificent Mile, River North, and Grant Park are located about 15.5 mi, 15.0 mi, and 16.2 mi, respectively from Chicago O'Hare Intl. Travelers can book a car rental at Chicago O'Hare Intl for about $58 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 $718). 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
Swords
Wicklow
Leixlip

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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 November 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$412Average$614FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$462Average$780FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$463Average$629FlexibilityNo cancel feeOn-time70%
IberiaCheapest$482Average$685FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$507Average$835FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$526Average$847FlexibilityNo cancel feeOn-time76%
DeltaCheapest$532Average$849FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$560Average$933FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$736Average$920FlexibilityNo cancel feeOn-timeN/A

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