Dublin

$284+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
Jul 5 — Jul 121
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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 June 5, 2026.

This KAYAK deal was found by Cheapflights users on 6/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:15 pm
STL
-
DUB
1 stop31h 55m
Aer Lingus
Wed 11/41:00 pm
DUB
-
STL
1 stop32h 30m
Aer Lingus
Deal found 6/3$350
This KAYAK deal was found by Cheapflights users on 6/4. 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.
Tue 9/88:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Tue 9/151:20 pm
DUB
-
STL
1 stop12h 40m
Aer Lingus
Deal found 6/4$354
This KAYAK deal was found by Cheapflights users on 6/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Wed 9/91:20 pm
DUB
-
STL
1 stop12h 40m
Aer Lingus
Deal found 6/2$355
This KAYAK deal was found by Cheapflights users on 6/4. 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.
Tue 9/18:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Wed 9/161:20 pm
DUB
-
STL
1 stop12h 40m
Aer Lingus
Deal found 6/4$375
This KAYAK deal was found by Cheapflights users on 6/4. 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.
Sun 9/68:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Sun 9/131:20 pm
DUB
-
STL
1 stop30h 40m
Aer Lingus
Deal found 6/4$404
This Ovago deal was found by Cheapflights users on 6/1. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Sat 9/121:20 pm
DUB
-
STL
1 stop30h 40m
Aer Lingus
Deal found 6/1$405
This KAYAK deal was found by Cheapflights users on 6/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Sun 9/61:20 pm
DUB
-
STL
1 stop12h 47m
Aer Lingus
Deal found 6/5$421
This Ovago deal was found by Cheapflights users on 6/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:15 pm
STL
-
DUB
1 stop30h 55m
Aer Lingus
Tue 11/101:00 pm
DUB
-
STL
1 stop32h 30m
Aer Lingus
Deal found 6/2$430
This Ovago deal was found by Cheapflights users on 5/31. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:15 pm
STL
-
DUB
1 stop31h 55m
Aer Lingus
Mon 11/21:00 pm
DUB
-
STL
1 stop32h 30m
Aer Lingus
Deal found 5/31$451
This Ovago deal was found by Cheapflights users on 6/1. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Mon 9/141:20 pm
DUB
-
STL
1 stop12h 40m
Aer Lingus
Deal found 6/1$462

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 June 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$350
(KAYAK)

One-way from

$284
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,166
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. 22% potential increase in price ($204 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($41 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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 June 5, 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

Tue 9/8

8:55 am-5:10 am

1 stop14h 15m

Dublin

Tue 9/15

1:20 pm-8:00 pm

1 stop12h 40m

$354

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 9/2

4:54 pm-11:50 am

1 stop12h 56m

Dublin

Wed 9/9

9:40 am-8:44 pm

2 stops17h 04m

$697
Quickest round-trip

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 11/4

1:27 pm-7:30 am

2 stops12h 03m

Dublin

Tue 11/10

10:40 am-3:38 pm

1 stop10h 58m

$706

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 11/9

2:50 pm-12:35 pm

2 stops15h 45m

Dublin

Wed 11/18

10:20 am-10:29 pm

2 stops18h 09m

$706

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 10/26

8:05 pm-5:05 pm

2 stops16h 00m

Dublin

Wed 11/4

1:10 pm-11:56 pm

2 stops16h 46m

$706

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 9/1

12:27 pm-7:30 am

1 stop13h 03m

Dublin

Wed 9/16

9:20 am-11:40 pm

2 stops44h 20m

$741

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 10/28

11:45 am-9:55 am

2 stops17h 10m

Dublin

Mon 11/2

9:00 am-3:30 pm

1 stop12h 30m

$747

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 8/11

5:30 pm-8:15 am

2 stops32h 45m

Dublin

Fri 12/18

5:10 am-1:45 pm

1 stop14h 35m

$752

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 8/12

7:00 am-7:45 am

3 stops18h 45m

Dublin

Fri 12/18

9:00 am-3:30 pm

1 stop12h 30m

$753

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 9/15

10:29 am-9:15 am

2 stops16h 46m

Dublin

Wed 10/28

5:45 am-8:37 pm

2 stops19h 52m

$823

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/2

Showing 1-10 of 17 resultsSorted by cheapest first
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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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?

To ensure you get the cheapest price possible for a flight from St. Louis to Dublin, you should look to book at least 41 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, January is the cheapest month in which you can book a flight from St. Louis to Dublin (average of $523). Flying from St. Louis to Dublin in June is currently the most expensive (average of $1,166). 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 June 5, 2026.
See what other customers who have flown with Delta,United Airlines, andAer 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.

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 Aer Lingus, Finnair, and United Airlines fly from St. Louis to Dublin in about 12h 03m. The time it takes to get you to your destination can typically vary by up to 2h 12m. 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, Aer Lingus ($325), KLM ($412), and British Airways ($418) offers the cheapest pricing from St. Louis to Dublin. Aer Lingus is 54% 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?

    $190 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?

  • 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 $64 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, January is the cheapest month in which you can book a flight from St. Louis to Dublin (average of $523). Flying from St. Louis to Dublin in June is currently the most expensive (average of $1,166). 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
Castleknock

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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.

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 June 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$325Average$619FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$412Average$681FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$418Average$556FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$430Average$631FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$449Average$719FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$456Average$701FlexibilityNo cancel feeOn-time67%
IberiaCheapest$465Average$592FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$482Average$805FlexibilityNo cancel feeOn-time71%
DeltaCheapest$483Average$710FlexibilityNo cancel feeOn-timeN/A

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