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$330+ 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$501
(Booking.com)

One-way from

$330
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,286
From Lambert-St Louis to Dublin
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One-way flight from Lambert-St Louis to Dublin
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Highest demand for flights based on searches. 20% potential increase in price ($232 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/11. 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.
Sun 7/205:00 amSTL - DUB
2 stops20h 45mAir Canada
Tue 8/59:20 amDUB - STL
2 stops36h 01mAir Canada
Deal found 6/11$501
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 9/31:30 pmSTL - DUB
1 stop12h 15mUnited Airlines
Tue 9/99:20 amDUB - STL
2 stops36h 24mUnited Airlines
Deal found 6/11$503
This Booking.com deal was found by Cheapflights users on 6/11. 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.
Tue 11/1810:30 amSTL - DUB
2 stops14h 40mMultiple Airlines
Tue 11/255:00 amDUB - STL
2 stops23h 47mMultiple Airlines
Deal found 6/11$530
This Iberia deal was found by Cheapflights users on 6/11. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/205:56 pmSTL - DUB
1 stop33h 49mIberia
Tue 8/51:45 pmDUB - STL
1 stop11h 23mIberia
Deal found 6/11$533
This KLM deal was found by Cheapflights users on 6/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/510:46 amSTL - DUB
1 stop15h 59mKLM
Tue 8/1911:00 amDUB - STL
1 stop17h 02mKLM
Deal found 6/10$536
This Delta deal was found by Cheapflights users on 6/9. 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 9/310:45 amSTL - DUB
2 stops15h 10mDelta
Wed 9/171:15 pmDUB - STL
2 stops24h 55mDelta
Deal found 6/9$546
This Ovago deal was found by Cheapflights users on 6/11. 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.
Mon 7/2812:27 pmSTL - DUB
2 stops15h 13mBritish Airways
Wed 8/610:50 amDUB - STL
2 stops18h 24mBritish Airways
Deal found 6/11$553
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/106:10 amSTL - DUB
1 stop18h 20mAmerican Airlines
Thu 7/179:30 amDUB - STL
1 stop16h 54mAmerican Airlines
Deal found 6/10$607
This Ovago deal was found by Cheapflights users on 6/12. 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.
Tue 10/2811:49 amSTL - DUB
1 stop14h 11mLufthansa
Sun 11/95:10 amDUB - STL
1 stop14h 45mLufthansa
Deal found 6/12$616

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 12, 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

Sun 7/20

5:00 am-7:45 am

2 stops20h 45m

Dublin

Tue 8/5

9:20 am-3:21 pm

2 stops36h 01m

$501

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 9/3

1:30 pm-7:45 am

1 stop12h 15m

Dublin

Tue 9/9

9:20 am-3:44 pm

2 stops36h 24m

$503

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 7/20

5:56 pm-9:45 am

1 stop33h 49m

Dublin

Tue 8/5

1:45 pm-7:08 pm

1 stop11h 23m

$533

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 8/5

10:46 am-8:45 am

1 stop15h 59m

Dublin

Tue 8/19

11:00 am-10:02 pm

1 stop17h 02m

$536

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 9/3

10:45 am-7:55 am

2 stops15h 10m

Dublin

Wed 9/17

1:15 pm-8:10 am

2 stops24h 55m

$546

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 7/28

12:27 pm-9:40 am

2 stops15h 13m

Dublin

Wed 8/6

10:50 am-11:14 pm

2 stops18h 24m

$553

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 8/19

5:30 pm-7:45 am

2 stops32h 15m

Dublin

Mon 8/25

7:50 pm-8:00 pm

2 stops30h 10m

$565

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 7/10

6:10 am-6:30 am

1 stop18h 20m

Dublin

Thu 7/17

9:30 am-8:24 pm

1 stop16h 54m

$607

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 8/10

5:30 pm-10:15 pm

2 stops22h 45m

Dublin

Sat 8/16

5:45 pm-3:47 pm

2 stops28h 02m

$783

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 7/22

11:24 am-7:20 am

1 stop13h 56m

Dublin

Tue 8/5

9:20 am-11:35 pm

1 stop20h 15m

$1,464

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 16 results
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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 June 9, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Dublin, you should look to book at least 50 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, November is the cheapest month in which you can book a flight from St. Louis to Dublin (average of $509). Flying from St. Louis to Dublin in June is currently the most expensive (average of $947). 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 June 12, 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 48% on airfare.

Rainfall in Dublin by month

Plan your trip to Dublin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Dublin ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Dublin when rainfall is around 1.9 in.

Temperature in Dublin by month

Plan your trip to Dublin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Dublin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 12, 2025.
To help decide which airline to fly from St. Louis to Dublin, see what other customers have to say about Delta, KLM and Austrian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    According to our current data, Air Canada ($501), United Airlines ($503), and Iberia ($533) offers the cheapest pricing from St. Louis to Dublin. Air Canada is 44% 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?

    $408 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on British Airways and Delta, with prices starting from $412 and $413, 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, 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 $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, November is the cheapest month in which you can book a flight from St. Louis to Dublin (average of $509). Flying from St. Louis to Dublin in June is currently the most expensive (average of $947). 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
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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$451Average$629FlexibilityNo cancel feeOn-time70%
IberiaCheapest$491Average$816FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$507Average$899FlexibilityNo cancel feeOn-time69%
KLMCheapest$531Average$571FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$560Average$879FlexibilityNo cancel feeOn-time76%
DeltaCheapest$569Average$910FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$572Average$928FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$582Average$832FlexibilityNo cancel feeOn-time67%
Aer LingusCheapest$736Average$996FlexibilityNo cancel feeOn-timeN/A

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