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Ireland

$191+ Cheap flights from Missouri to Ireland

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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
Jun 14 — Jun 211
Sun 6/14
Sun 6/21
1 adult, Economy
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Cheap flight deals from Missouri to Ireland

Cheapest flights from Missouri to Ireland
Explore the most affordable flight options available from Missouri to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2026.

This KAYAK deal was found by Cheapflights users on 5/14. 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 9/98:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Wed 9/161:20 pm
DUB
-
STL
1 stop30h 40m
Aer Lingus
Deal found 5/14$325
This Ovago deal was found by Cheapflights users on 5/14. 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.
Sun 9/68:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Tue 9/151:20 pm
DUB
-
STL
1 stop30h 40m
Aer Lingus
Deal found 5/14$326
This KAYAK deal was found by Cheapflights users on 5/13. 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 9/78:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Wed 9/161:20 pm
DUB
-
STL
1 stop12h 40m
Aer Lingus
Deal found 5/13$335
This Ovago deal was found by Cheapflights users on 5/13. 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 9/18:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Fri 9/181:20 pm
DUB
-
STL
1 stop30h 40m
Aer Lingus
Deal found 5/13$336
This KAYAK deal was found by Cheapflights users on 5/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Tue 9/151:20 pm
DUB
-
STL
1 stop12h 40m
Aer Lingus
Deal found 5/11$345
This KAYAK deal was found by Cheapflights users on 5/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Tue 10/271:00 pm
DUB
-
STL
1 stop31h 30m
Aer Lingus
Deal found 5/12$357
This KAYAK deal was found by Cheapflights users on 5/12. 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 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
Mon 9/71:20 pm
DUB
-
STL
1 stop30h 40m
Aer Lingus
Deal found 5/12$371
This KAYAK deal was found by Cheapflights users on 5/13. 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 5/13$383
This KAYAK deal was found by Cheapflights users on 5/14. 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 9/78:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Mon 9/141:20 pm
DUB
-
STL
1 stop12h 40m
Aer Lingus
Deal found 5/14$385
This KAYAK deal was found by Cheapflights users on 5/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Wed 8/191:20 pm
DUB
-
STL
1 stop12h 47m
Aer Lingus
Deal found 5/12$407
This Ovago deal was found by Cheapflights users on 5/13. 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 9/308:55 am
STL
-
DUB
1 stop14h 15m
Aer Lingus
Thu 10/151:20 pm
DUB
-
STL
1 stop12h 40m
Aer Lingus
Deal found 5/13$408
This KAYAK deal was found by Cheapflights users on 5/15. 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 10/284:15 pm
STL
-
DUB
1 stop32h 00m
Aer Lingus
Wed 11/41:00 pm
DUB
-
STL
1 stop32h 30m
Aer Lingus
Deal found 5/15$409

Find flight deals from Missouri to Ireland

Keep the following information in mind while searching for Missouri to Ireland flight deals. Data was last updated May 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$325
(KAYAK)

One-way from

$239
(KAYAK)

Popular in

June

Cheapest in

January

Average price

$775
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 Missouri to Ireland
Search Deals
One-way flight from Missouri to Ireland
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($202 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Ireland 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 May 15, 2026.
Use the filters below to find and compare flights from Missouri to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kansas CityDublin

MCI - DUB

MCIDUB

Kansas City

Sun 9/6

6:36 pm-9:45 am

1 stop33h 09m

Dublin

Tue 9/15

9:50 am-10:21 am

2 stops30h 31m

$684

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 9/7

7:00 am-7:30 am

1 stop18h 30m

Dublin

Fri 9/18

9:20 am-2:00 pm

1 stop10h 40m

$697

Kansas CityDublin

MCI - DUB

MCIDUB

Kansas City

Wed 10/28

12:16 pm-7:55 am

1 stop14h 39m

Dublin

Wed 11/4

9:45 am-11:58 pm

1 stop20h 13m

$706

Kansas CityDublin

MCI - DUB

MCIDUB

Kansas City

Tue 9/1

3:14 pm-11:10 am

2 stops13h 56m

Dublin

Tue 9/15

9:20 am-7:17 pm

2 stops15h 57m

$707

Kansas CityDublin

MCI - DUB

MCIDUB

Kansas City

Wed 9/2

6:00 am-7:30 am

1 stop19h 30m

Dublin

Wed 9/16

9:20 am-9:07 am

2 stops29h 47m

$707

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Tue 9/1

12:27 pm-10:15 am

1 stop15h 48m

Shannon

Fri 9/4

9:30 am-6:16 pm

1 stop14h 46m

$709

ColumbiaShannon

COU - SNN

COUSNN

Columbia Regional

Mon 9/7

10:16 am-7:30 am

1 stop15h 14m

Shannon

Fri 9/11

9:30 am-5:45 pm

1 stop14h 15m

$709

Kansas CityCork

MCI - ORK

MCIORK

Kansas City

Wed 9/9

3:36 pm-2:40 pm

2 stops17h 04m

Cork

Thu 9/17

6:15 am-7:13 pm

2 stops18h 58m

$711

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 8/31

4:50 pm-7:30 am

1 stop32h 40m

Dublin

Mon 9/7

9:50 am-12:13 pm

2 stops32h 23m

$734
Quickest round-trip

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 9/1

4:50 pm-11:10 am

1 stop12h 20m

Dublin

Sun 9/13

9:20 am-2:00 pm

1 stop10h 40m

$747

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 52 resultsSorted by cheapest first
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Best time to book a flight from Missouri to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Missouri 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 Missouri to Ireland

How far ahead should I book a flight from Missouri to Ireland?

The best time to book flights from Missouri to Ireland is 40 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Missouri to Ireland?

Currently, May is the cheapest month in which you can book a flight from Missouri to Ireland (average of $348). Flying from Missouri to Ireland in June is currently the most expensive (average of $711). 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.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Ireland. 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 Missouri to Ireland?

    For as low as $325, Aer Lingus can have you in Ireland from Missouri in 14h 15m. There are 3909 mi between Missouri and Ireland. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Missouri to Ireland one-way?

    The cheapest airlines for a one-way flight from Missouri to Ireland are American Airlines ($269), United Airlines ($318), and Aer Lingus ($323).

  • Can I find deals for flights from Missouri to Ireland that include hotel bookings?

    Yes. In addition to deals on Missouri to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Ireland.

  • Can I find deals for business class flights from Missouri to Ireland?

    Yes. Cheapflights offers flight deals from Missouri to Ireland 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 Missouri to Ireland?

    Currently, May is the cheapest month in which you can book a flight from Missouri to Ireland (average of $348). Flying from Missouri to Ireland in June is currently the most expensive (average of $711). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Missouri to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Missouri to Ireland

Discover the top 10 airlines that operate flights from Missouri to Ireland. 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 May 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$412Average$658FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$418Average$681FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$424Average$589FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$456Average$690FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$456Average$771FlexibilityNo cancel feeOn-time69%
IberiaCheapest$466Average$643FlexibilityNo cancel feeOn-time77%
DeltaCheapest$481Average$727FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$483Average$808FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$533Average$996FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$684Average$986FlexibilityNo cancel feeOn-timeN/A

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