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$371+ Cheap flights from St. Louis (STL) 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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from St. Louis to Ireland

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Ireland (IE0). 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 January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$626
(Gurufare)

One-way from

$397
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$788
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 Ireland
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One-way flight from Lambert-St Louis to Ireland
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Highest demand for flights based on searches. 23% potential increase in price ($278 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 January 2025
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Find flight deals from St. Louis to Ireland

Cheapest flights from St. Louis to Ireland
Explore the most affordable flight options available from St. Louis to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This Gurufare deal was found by Cheapflights users on 1/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/143:45 pmSTL - DUB
2 stops19h 30mLufthansa
Sat 2/226:00 pmDUB - STL
2 stops25h 55mLufthansa
Deal found 1/29$626
This American Airlines deal was found by Cheapflights users on 1/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/252:10 pmSTL - DUB
2 stops13h 30mAmerican Airlines
Sat 3/86:40 amDUB - STL
2 stops17h 19mAmerican Airlines
Deal found 1/29$630
This American Airlines deal was found by Cheapflights users on 1/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/1611:57 amSTL - SNN
2 stops17h 33mAmerican Airlines
Sun 2/237:45 amSNN - STL
2 stops17h 48mAmerican Airlines
Deal found 1/29$633
This Delta deal was found by Cheapflights users on 1/30. 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 2/1611:50 amSTL - DUB
2 stops21h 50mDelta
Sun 2/2312:00 pmDUB - STL
1 stop17h 37mDelta
Deal found 1/30$636
This Air Canada deal was found by Cheapflights users on 1/29. 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.
Thu 3/203:50 pmSTL - DUB
2 stops21h 00mMultiple Airlines
Wed 4/212:10 pmDUB - STL
2 stops32h 49mMultiple Airlines
Deal found 1/29$638
This Booking.com deal was found by Cheapflights users on 1/30. 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 2/165:45 amSTL - DUB
2 stops22h 05mBritish Airways
Sat 2/228:35 pmDUB - STL
2 stops31h 28mBritish Airways
Deal found 1/30$660
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Sat 3/110:18 amSTL - DUB
2 stops17h 47mUnited Airlines
Sat 3/89:00 amDUB - STL
2 stops20h 32mUnited Airlines
Deal found 1/30$670
This Travelocity deal was found by Cheapflights users on 1/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/23:50 pmSTL - DUB
1 stop10h 25mAir Canada
Wed 4/239:50 amDUB - STL
1 stop11h 09mAir Canada
Deal found 1/29$684
This Ovago deal was found by Cheapflights users on 1/30. 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 2/36:00 pmSTL - DUB
1 stop10h 20mAer Lingus
Wed 2/194:40 pmDUB - STL
1 stop11h 22mAer Lingus
Deal found 1/30$767
This Expedia deal was found by Cheapflights users on 1/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/223:50 pmSTL - ORK
2 stops38h 20mAir Canada
Mon 3/3111:45 amORK - STL
2 stops33h 14mAir Canada
Deal found 1/29$806
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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.
Mon 4/712:01 pmSTL - DUB
1 stop15h 44mIberia
Sun 4/2012:40 pmDUB - STL
1 stop15h 49mIberia
Deal found 1/28$815
This Gotogate deal was found by Cheapflights users on 1/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/133:50 pmSTL - SNN
2 stops19h 55mAir Canada
Mon 3/175:30 pmSNN - STL
2 stops50h 36mAir Canada
Deal found 1/30$830

Find flights from St. Louis to Ireland within your budget

Customize your flight search to find flights from St. Louis 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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 2/14

3:45 pm-5:15 pm

2 stops19h 30m

Dublin

Sat 2/22

6:00 pm-1:55 pm

2 stops25h 55m

$626

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 2/25

2:10 pm-9:40 am

2 stops13h 30m

Dublin

Sat 3/8

6:40 am-5:59 pm

2 stops17h 19m

$630

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sun 2/16

11:57 am-11:30 am

2 stops17h 33m

Shannon

Sun 2/23

7:45 am-7:33 pm

2 stops17h 48m

$633

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 3/20

3:50 pm-5:50 pm

2 stops21h 00m

Dublin

Wed 4/2

12:10 pm-2:59 pm

2 stops32h 49m

$638

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 2/23

6:36 pm-3:05 pm

2 stops14h 29m

Dublin

Sat 3/1

8:35 pm-8:42 pm

2 stops30h 07m

$660

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 4/2

3:50 pm-8:15 am

1 stop10h 25m

Dublin

Wed 4/23

9:50 am-2:59 pm

1 stop11h 09m

$684

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 3/20

8:25 am-10:05 am

1 stop20h 40m

Dublin

Wed 4/2

9:50 am-2:59 pm

1 stop11h 09m

$775

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 2/9

3:10 pm-10:15 am

1 stop13h 05m

Dublin

Sun 2/16

4:40 pm-10:03 pm

1 stop11h 23m

$799

St. LouisCork

STL - ORK

STLORK

Lambert-St Louis

Sat 3/22

3:50 pm-11:10 am

2 stops38h 20m

Cork

Mon 3/31

11:45 am-2:59 pm

2 stops33h 14m

$806

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 4/7

12:01 pm-9:45 am

1 stop15h 44m

Dublin

Fri 4/18

12:40 pm-10:29 pm

1 stop15h 49m

$815

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 30 results
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2
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Best time to book a flight from St. Louis to Ireland

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

Travel insights for flights from St. Louis to Ireland

Get recent, data-driven insights about flights from St. Louis to Ireland including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Ireland?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Ireland (average of $509). Flying from St. Louis to Ireland in June is currently the most expensive (average of $1,016). 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 IE?

Find hourly flight availability from St. Louis to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 30, 2025.

When flying from St. Louis to Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ireland by month

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

In terms of precipitation, rainfall in Ireland 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 Ireland when rainfall is around 1.9 in.

Temperature in Ireland by month

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

If weather is an important factor for your trip to Ireland, 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 Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated January 30, 2025.
To help decide which airline to fly from St. Louis to Ireland, see what other customers have to say about Delta, KLM and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,454 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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
8,454 reviews
Delta
8.0
Very good
8,454 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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
1,335 reviews
Delta
8.0
Very good
8,454 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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
8,913 reviews
Delta
8.0
Very good
8,454 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,454 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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.

Aer Lingus
7.1
Good
1,077 reviews
Delta
8.0
Very good
8,454 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

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 Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Ireland?

    For a flight from St. Louis to Ireland, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

  • What are the cheapest airlines to fly from St. Louis to Ireland one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $435. However, be on the lookout for offers from Aer Lingus and Iberia, as they are both options that can get you from St. Louis to Ireland for a low price.

  • What are the most popular routes from St. Louis to Ireland?

    While some choose either Lambert-St Louis - Shannon or Lambert-St Louis - Cork, Lambert-St Louis - Dublin is the most popular route from St. Louis to Ireland.

  • Can I find deals for flights from St. Louis to Ireland that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Ireland?

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

  • Can I find deals for business class flights from St. Louis to Ireland?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Ireland?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Ireland (average of $509). Flying from St. Louis to Ireland in June is currently the most expensive (average of $1,016). 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

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Alternative routes for St. Louis to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from St. Louis to Ireland

Discover the top 9 airlines that operate flights from St. Louis 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$489Average$892FlexibilityNo cancel feeOn-time67%
IberiaCheapest$491Average$862FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$495Average$1,013FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$499Average$839FlexibilityNo cancel feeOn-time70%
KLMCheapest$533Average$816FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$544Average$832FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$560Average$856FlexibilityNo cancel feeOn-time76%
DeltaCheapest$563Average$1,011FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$768Average$1,211FlexibilityNo cancel feeOn-timeN/A
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