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$385+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DUB
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
1 adult, Economy
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Cheap flight deals from St. Louis to Ireland

Keep the following information in mind while searching for St. Louis to Ireland flight deals. Data was last updated March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$584
(American Airlines)

One-way from

$385
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$818
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 ($274 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 3, 2025.

This American Airlines deal was found by Cheapflights users on 3/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/256:29 pmSTL - ORK
2 stops15h 56mAmerican Airlines
Thu 4/37:20 amORK - STL
2 stops17h 52mAmerican Airlines
Deal found 3/2$584
This American Airlines deal was found by Cheapflights users on 3/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/11:38 pmSTL - SNN
2 stops15h 42mAmerican Airlines
Mon 4/77:40 amSNN - STL
2 stops20h 32mAmerican Airlines
Deal found 3/1$633
This United Airlines deal was found by Cheapflights users on 3/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/195:40 pmSTL - SNN
1 stop10h 35mUnited Airlines
Sun 8/249:30 amSNN - STL
1 stop11h 51mUnited Airlines
Deal found 3/2$654
This FlightHub deal was found by Cheapflights users on 3/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/134:05 pmSTL - DUB
2 stops33h 40mMultiple Airlines
Sat 9/205:40 pmDUB - STL
1 stop25h 50mMultiple Airlines
Deal found 3/2$675
This Air Canada deal was found by Cheapflights users on 3/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/219:15 amSTL - DUB
1 stop17h 00mAir Canada
Mon 8/259:50 amDUB - STL
2 stops32h 30mAir Canada
Deal found 3/3$689
This United deal was found by Cheapflights users on 3/3. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:18 pmSTL - DUB
2 stops32h 27mUnited Airlines
Mon 8/259:50 amDUB - STL
2 stops36h 45mUnited Airlines
Deal found 3/3$693
This Scandinavian Airlines deal was found by Cheapflights users on 3/3. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/13:30 pmSTL - DUB
2 stops20h 45mScandinavian Airlines
Sun 9/79:45 pmDUB - STL
3 stops29h 02mScandinavian Airlines
Deal found 3/3$738
This Ovago deal was found by Cheapflights users on 3/2. 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 8/204:23 pmSTL - DUB
2 stops13h 32mBritish Airways
Sun 8/247:50 pmDUB - STL
2 stops29h 57mBritish Airways
Deal found 3/2$741
This Delta deal was found by Cheapflights users on 3/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/201:06 pmSTL - DUB
2 stops13h 59mDelta
Wed 4/21:15 pmDUB - STL
2 stops26h 21mDelta
Deal found 3/2$743
This Cheapflightsfares deal was found by Cheapflights users on 3/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1111:55 amSTL - DUB
1 stop12h 20mAer Lingus
Tue 3/253:20 pmDUB - STL
1 stop11h 58mAer Lingus
Deal found 3/2$749
This Cheapflightsfares deal was found by Cheapflights users on 3/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1611:06 amSTL - DUB
1 stop16h 39mIberia
Tue 4/229:30 amDUB - STL
1 stop17h 28mIberia
Deal found 3/2$770
This Air Canada deal was found by Cheapflights users on 3/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/11:12 pmSTL - SNN
3 stops20h 58mMultiple Airlines
Mon 4/79:15 pmSNN - STL
2 stops23h 34mMultiple Airlines
Deal found 3/1$786

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 March 3, 2025.

Fly from

St. Louis

Fly to

Ireland

Route

Depart

Return

Price

St. LouisCork

STL - ORK

STLORK

Lambert-St Louis

Tue 3/25

6:29 pm-3:25 pm

2 stops15h 56m

Cork

Thu 4/3

7:20 am-7:12 pm

2 stops17h 52m

$584

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Tue 4/1

1:38 pm-11:20 am

2 stops15h 42m

Shannon

Mon 4/7

7:40 am-10:12 pm

2 stops20h 32m

$633

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 8/20

3:30 pm-11:30 am

1 stop14h 00m

Dublin

Mon 8/25

9:50 am-3:16 pm

1 stop11h 26m

$677

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 8/21

9:15 am-8:15 am

1 stop17h 00m

Dublin

Mon 8/25

9:50 am-12:20 pm

2 stops32h 30m

$689

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 8/21

5:18 pm-7:45 am

2 stops32h 27m

Dublin

Mon 8/25

9:50 am-4:35 pm

2 stops36h 45m

$693

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 8/20

4:23 pm-11:55 am

2 stops13h 32m

Dublin

Sun 8/24

7:50 pm-7:47 pm

2 stops29h 57m

$741

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 3/20

1:06 pm-8:05 am

2 stops13h 59m

Dublin

Wed 4/2

1:15 pm-9:36 am

2 stops26h 21m

$743

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 4/16

11:06 am-9:45 am

1 stop16h 39m

Dublin

Tue 4/22

9:30 am-8:58 pm

1 stop17h 28m

$770

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Tue 4/1

1:12 pm-4:10 pm

3 stops20h 58m

Shannon

Mon 4/7

9:15 pm-2:49 pm

2 stops23h 34m

$786

St. LouisCork

STL - ORK

STLORK

Lambert-St Louis

Tue 3/25

3:30 pm-3:25 pm

3 stops18h 55m

Cork

Mon 3/31

8:30 pm-2:49 pm

2 stops24h 19m

$786

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 30 results
1
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 March 3, 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 March 3, 2025.
To help decide which airline to fly from St. Louis to Ireland, see what other customers have to say about Delta, United Airlines and Scandinavian 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
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

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
8,070 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

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
8,679 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

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.

Scandinavian Airlines
7.3
Good
1,314 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

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
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

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.

WestJet
7.2
Good
2,788 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

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 United Airlines, with whom users have recently found tickets for as low as $483. However, be on the lookout for offers from Air Canada and Delta, 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 March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$485Average$903FlexibilityNo cancel feeOn-time67%
IberiaCheapest$491Average$867FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$495Average$1,021FlexibilityNo cancel feeOn-time69%
DeltaCheapest$498Average$998FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$499Average$904FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$524Average$879FlexibilityNo cancel feeOn-time76%
KLMCheapest$532Average$627FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$544Average$816FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$750Average$1,117FlexibilityNo cancel feeOn-timeN/A
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