Dublin

$404+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
Dec 2 — Dec 91
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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 2, 2025.

This Delta deal was found by Cheapflights users on 11/2. 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.
Sun 11/910:45 amSTL - DUB
2 stops16h 35mDelta
Tue 11/2510:45 amDUB - STL
1 stop11h 48mDelta
Deal found 11/2$423
This Flysmarter deal was found by Cheapflights users on 11/2. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/94:30 pmSTL - DUB
1 stop10h 15mKLM
Tue 11/259:45 amDUB - STL
1 stop13h 04mKLM
Deal found 11/2$426
This Delta deal was found by Cheapflights users on 11/2. 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.
Wed 12/34:32 pmSTL - DUB
1 stop10h 13mDelta
Tue 12/239:45 amDUB - STL
1 stop18h 31mDelta
Deal found 11/2$433
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:39 amSTL - DUB
1 stop14h 06mDelta
Wed 1/216:00 amDUB - STL
2 stops23h 39mDelta
Deal found 11/1$452
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Tue 11/115:24 pmSTL - DUB
1 stop32h 46mUnited Airlines
Mon 11/179:00 amDUB - STL
2 stops39h 47mUnited Airlines
Deal found 11/1$455
This KLM deal was found by Cheapflights users on 11/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/114:30 pmSTL - DUB
1 stop10h 15mMultiple Airlines
Mon 11/1710:45 amDUB - STL
1 stop11h 48mMultiple Airlines
Deal found 11/1$458
This Delta deal was found by Cheapflights users on 10/31. 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 11/76:14 pmSTL - DUB
2 stops15h 31mDelta
Fri 11/1410:45 amDUB - STL
1 stop11h 48mDelta
Deal found 10/31$463
This Mytrip deal was found by Cheapflights users on 11/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/123:50 pmSTL - DUB
1 stop13h 10mMultiple Airlines
Wed 1/219:00 amDUB - STL
1 stop12h 29mMultiple Airlines
Deal found 11/1$467

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 2, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$423
(Delta)

One-way from

$404
(Cheapflightsfares)

Popular in

June

Cheapest in

November

Average price

$563
Provider with most accurate pricing for Lambert-St Louis-Dublin flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Dublin flights.
From Lambert-St Louis to Dublin
One-way flight from Lambert-St Louis to Dublin
Highest demand for flights based on searches. 23% potential increase in price ($261 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
Average for round-trip flights in November 2025

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 2, 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

Mon 1/12

1:05 pm-8:45 am

1 stop13h 40m

Dublin

Wed 1/21

10:45 am-8:06 pm

1 stop15h 21m

$433

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 1/12

1:05 pm-8:45 am

1 stop13h 40m

Dublin

Tue 1/20

10:45 am-12:25 pm

1 stop31h 40m

$439

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 12/11

1:00 pm-8:10 am

1 stop13h 10m

Dublin

Sun 12/14

9:00 am-5:30 pm

2 stops38h 30m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 1/16

11:20 am-8:10 am

1 stop14h 50m

Dublin

Wed 1/21

9:00 am-2:30 pm

2 stops35h 30m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 11/11

5:24 pm-8:10 am

1 stop32h 46m

Dublin

Mon 11/17

9:00 am-6:47 pm

2 stops39h 47m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 1/13

9:57 am-8:10 am

1 stop16h 13m

Dublin

Wed 1/21

9:00 am-2:30 pm

2 stops35h 30m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 1/22

1:15 pm-8:10 am

1 stop12h 55m

Dublin

Mon 1/26

9:00 am-12:29 pm

2 stops33h 29m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 1/12

6:30 am-8:10 am

1 stop19h 40m

Dublin

Wed 1/21

9:00 am-12:29 pm

2 stops33h 29m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 11/28

8:00 am-8:10 am

1 stop18h 10m

Dublin

Fri 12/5

9:00 am-9:58 pm

2 stops42h 58m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 11/12

6:40 am-8:45 am

2 stops20h 05m

Dublin

Wed 1/21

6:00 am-11:39 pm

2 stops23h 39m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

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 October 31, 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 2, 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.

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 November 2, 2025.
See what other customers who have flown with United Airlines, American Airlines, and Aer Lingus 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.

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 Delta and United Airlines fly from St. Louis to Dublin in about 13h 10m. The time it takes to get you to your destination can typically vary by up to 30m. Airlines will cover a distance of 3909 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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?

  • 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?

  • 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 2, 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$678FlexibilityNo cancel feeOn-time77%
DeltaCheapest$483Average$844FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$504Average$847FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$526Average$847FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$560Average$931FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$736Average$929FlexibilityNo cancel feeOn-timeN/A

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