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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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
May 4 — May 111
Sun 5/4
Sun 5/11
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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$720
(United Airlines)

One-way from

$428
(Air Canada)

Popular in

June

Cheapest in

November

Average price

$934
Provider with most accurate pricing for Lambert-St Louis-Dublin flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Dublin flights.
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From Lambert-St Louis to Dublin
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One-way flight from Lambert-St Louis to Dublin
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($249 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/291:54 pmSTL - DUB
1 stop12h 21mIberia
Mon 11/32:05 pmDUB - STL
1 stop14h 24mIberia
Deal found 4/28$597
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 8/11:30 pmSTL - DUB
1 stop12h 15mUnited Airlines
Fri 8/229:50 amDUB - STL
1 stop15h 50mUnited Airlines
Deal found 4/28$606
This KLM deal was found by Cheapflights users on 4/28. 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.
Wed 10/293:30 pmSTL - DUB
1 stop11h 15mKLM
Mon 11/39:45 amDUB - STL
1 stop12h 13mKLM
Deal found 4/28$622
This Air France deal was found by Cheapflights users on 4/28. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/293:30 pmSTL - DUB
1 stop11h 15mAir France
Mon 11/311:30 amDUB - STL
2 stops15h 19mAir France
Deal found 4/28$626
This Air Canada deal was found by Cheapflights users on 4/29. 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.
Sun 11/24:15 pmSTL - DUB
2 stops19h 35mMultiple Airlines
Sun 11/165:00 amDUB - STL
2 stops16h 26mMultiple Airlines
Deal found 4/29$640
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Fri 8/151:30 pmSTL - DUB
1 stop12h 15mAir Canada
Mon 8/259:20 amDUB - STL
1 stop16h 40mAir Canada
Deal found 4/28$650
This StudentUniverse deal was found by Cheapflights users on 4/28. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/156:06 amSTL - DUB
2 stops28h 14mBritish Airways
Sun 8/2410:55 amDUB - STL
2 stops18h 56mBritish Airways
Deal found 4/28$726
This Delta deal was found by Cheapflights users on 4/29. 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 8/36:00 amSTL - DUB
1 stop21h 15mDelta
Sun 8/101:15 pmDUB - STL
1 stop25h 26mDelta
Deal found 4/29$754
This Lufthansa deal was found by Cheapflights users on 4/28. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/153:30 pmSTL - DUB
1 stop19h 25mLufthansa
Sun 8/245:55 amDUB - STL
2 stops15h 49mLufthansa
Deal found 4/28$761
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 8/158:35 amSTL - DUB
1 stop14h 35mAmerican Airlines
Sun 8/244:40 pmDUB - STL
1 stop13h 11mAmerican Airlines
Deal found 4/28$876
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/158:26 amSTL - DUB
1 stop14h 44mAer Lingus
Sun 8/244:40 pmDUB - STL
1 stop21h 16mAer Lingus
Deal found 4/28$902

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 April 29, 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 7/27

1:30 pm-7:45 am

1 stop12h 15m

Dublin

Sat 8/9

9:20 am-8:00 pm

1 stop16h 40m

$720

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 7/27

9:15 am-7:45 am

2 stops16h 30m

Dublin

Sat 8/9

9:50 am-8:00 pm

2 stops40h 10m

$733

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 5/28

8:15 am-7:10 am

1 stop16h 55m

Dublin

Wed 6/4

9:50 am-7:58 pm

2 stops16h 08m

$781

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 5/28

6:45 am-7:55 am

2 stops19h 10m

Dublin

Wed 6/4

10:00 am-8:49 pm

2 stops16h 49m

$800

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 7/4

12:28 pm-9:45 am

1 stop15h 17m

Dublin

Wed 7/16

1:45 pm-11:49 pm

1 stop16h 04m

$855

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 5/15

11:32 am-7:55 am

1 stop14h 23m

Dublin

Thu 5/22

10:00 am-4:47 pm

1 stop12h 47m

$856

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 5/5

4:15 pm-10:40 am

1 stop12h 25m

Dublin

Sun 5/18

4:40 pm-11:51 pm

1 stop13h 11m

$922

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 5/23

11:32 am-7:55 am

1 stop14h 23m

Dublin

Sat 6/7

1:15 pm-9:31 pm

2 stops14h 16m

$970

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 7/18

5:30 pm-7:15 pm

2 stops19h 45m

Dublin

Sun 7/27

5:45 pm-3:47 pm

2 stops28h 02m

$994

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 6/17

1:21 pm-3:45 pm

2 stops20h 24m

Dublin

Wed 6/25

8:50 am-8:30 pm

2 stops17h 40m

$1,158

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 19 results
1
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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 Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*2 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Dublin flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 25, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Dublin, you should look to book at least 86 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 $981). 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 April 29, 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 April 29, 2025.
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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, United Airlines ($720), Air Canada ($733), and Delta ($800) offers the cheapest pricing from St. Louis to Dublin. United Airlines is 21% 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?

    $428 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Delta and Aer Lingus, with prices starting from $433 and $478, 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 $55 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 $981). 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$451Average$629FlexibilityNo cancel feeOn-time70%
IberiaCheapest$491Average$867FlexibilityNo cancel feeOn-time77%
DeltaCheapest$498Average$934FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$501Average$939FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$505Average$848FlexibilityNo cancel feeOn-time67%
KLMCheapest$532Average$614FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$560Average$880FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$569Average$959FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$740Average$1,091FlexibilityNo cancel feeOn-timeN/A

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