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Cheap flights from St. Louis to Ireland from €195

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Ireland departing on 6/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
16:05 - 05:10
STL
-
DUB
31h 05m
1 stop
Aer Lingus Logo
13:00 - 15:26
DUB
-
STL
32h 26m
1 stop
€293Aer Lingus
Sat, 9 Jan - Tue, 19 Jan
Aer Lingus Logo
16:05 - 05:10
STL
-
DUB
31h 05m
1 stop
Aer Lingus Logo
13:00 - 15:26
DUB
-
STL
32h 26m
1 stop
€294Aer Lingus
Sat, 9 Jan - Tue, 19 Jan
Aer Lingus Logo
08:55 - 05:10
STL
-
DUB
14h 15m
1 stop
Aer Lingus Logo
13:20 - 14:00
DUB
-
STL
30h 40m
1 stop
€297Aer Lingus
Mon, 7 Sep - Wed, 16 Sep
Aer Lingus Logo
08:55 - 05:10
STL
-
DUB
14h 15m
1 stop
Aer Lingus Logo
13:20 - 20:20
DUB
-
STL
13h 00m
1 stop
€297Aer Lingus
Tue, 8 Sep - Tue, 15 Sep
Aer Lingus Logo
08:55 - 05:10
STL
-
DUB
14h 15m
1 stop
Aer Lingus Logo
13:20 - 20:20
DUB
-
STL
13h 00m
1 stop
€323Aer Lingus
Tue, 1 Sep - Thu, 10 Sep
Aer Lingus Logo
08:55 - 05:10
STL
-
DUB
14h 15m
1 stop
Aer Lingus Logo
13:20 - 14:00
DUB
-
STL
30h 40m
1 stop
€324Aer Lingus
Tue, 8 Sep - Tue, 15 Sep
Aer Lingus Logo
08:55 - 05:10
STL
-
DUB
14h 15m
1 stop
Aer Lingus Logo
13:20 - 20:20
DUB
-
STL
13h 00m
1 stop
€325Aer Lingus
Mon, 7 Sep - Wed, 16 Sep
Aer Lingus Logo
08:55 - 05:10
STL
-
DUB
14h 15m
1 stop
Aer Lingus Logo
13:20 - 20:20
DUB
-
STL
13h 00m
1 stop
€330Aer Lingus
Wed, 2 Sep - Fri, 11 Sep
Aer Lingus Logo
08:55 - 05:10
STL
-
DUB
14h 15m
1 stop
Aer Lingus Logo
13:20 - 20:20
DUB
-
STL
13h 00m
1 stop
€331Aer Lingus
Tue, 1 Sep - Wed, 9 Sep
Aer Lingus Logo
16:05 - 05:10
STL
-
DUB
32h 05m
1 stop
Aer Lingus Logo
13:00 - 15:26
DUB
-
STL
32h 26m
1 stop
€336Aer Lingus
Wed, 28 Oct - Thu, 19 Nov

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Aer Lingus flights from St. Louis to Ireland

Our best Aer Lingus deals on St. Louis to Ireland flight tickets
Aer Lingus
9 Jan
STL16:05Lambert-St Louis
31h 05m
1 stop
DUB05:10Dublin
19 Jan
DUB13:00Dublin
32h 26m
1 stop
STL15:26Lambert-St Louis
€293
Aer Lingus
9 Jan
STL16:05Lambert-St Louis
31h 05m
1 stop
DUB05:10Dublin
19 Jan
DUB13:00Dublin
32h 26m
1 stop
STL15:26Lambert-St Louis
€294
Aer Lingus
7 Sept
STL08:55Lambert-St Louis
14h 15m
1 stop
DUB05:10Dublin
16 Sept
DUB13:20Dublin
30h 40m
1 stop
STL14:00Lambert-St Louis
€297

United Airlines flights from St. Louis to Ireland

Our best United Airlines deals on St. Louis to Ireland flight tickets
United Airlines
12 Oct
STL12:20Lambert-St Louis
15h 55m
1 stop
SNN10:15Shannon
21 Oct
SNN12:30Shannon
14h 55m
1 stop
STL21:25Lambert-St Louis
€657
United Airlines
12 Oct
STL06:15Lambert-St Louis
22h 00m
2 stops
SNN10:15Shannon
21 Oct
SNN12:30Shannon
14h 55m
1 stop
STL21:25Lambert-St Louis
€661
United Airlines
9 Sept
STL08:00Lambert-St Louis
17h 30m
1 stop
SNN07:30Shannon
22 Sept
SNN12:30Shannon
17h 08m
1 stop
STL23:38Lambert-St Louis
€718

momondo Fare Finder

 
Customise 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, momondo users made 13,528 searches. Data last updated 3 August 2026.
Use the filters below to find and compare flights from St. Louis to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 9/1

16:05-05:10

1 stop31h 05m

Dublin

Tue 19/1

13:00-15:26

1 stop32h 26m

€293

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 9/1

16:05-05:10

1 stop31h 05m

Dublin

Tue 19/1

13:00-15:26

1 stop32h 26m

€294

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 7/9

08:55-05:10

1 stop14h 15m

Dublin

Wed 16/9

13:20-14:00

1 stop30h 40m

€297
Fastest return journey

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 8/9

08:55-05:10

1 stop14h 15m

Dublin

Tue 15/9

13:20-20:20

1 stop13h 00m

€297

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 1/9

08:55-05:10

1 stop14h 15m

Dublin

Thu 10/9

13:20-20:20

1 stop13h 00m

€323

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 8/9

08:55-05:10

1 stop14h 15m

Dublin

Tue 15/9

13:20-14:00

1 stop30h 40m

€324

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 7/9

08:55-05:10

1 stop14h 15m

Dublin

Wed 16/9

13:20-20:20

1 stop13h 00m

€325

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 2/9

08:55-05:10

1 stop14h 15m

Dublin

Fri 11/9

13:20-20:20

1 stop13h 00m

€330

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 1/9

08:55-05:10

1 stop14h 15m

Dublin

Wed 9/9

13:20-20:20

1 stop13h 00m

€331

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 28/10

16:05-05:10

1 stop32h 05m

Dublin

Thu 19/11

13:00-15:26

1 stop32h 26m

€336

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from St. Louis to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from St. Louis averaging around €437.

How far in advance should I book a flight from St. Louis to Ireland?

You are more likely to see cheaper flights to Ireland from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €658 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from St. Louis for as low as €504 on momondo.

Cheap St. Louis to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Ireland

Fastest flight time

11h 25m

Direct flights

None
The fastest flight from St. Louis to Ireland takes 11h 25m
There are no direct flights from St. Louis to Ireland. There are no popular flight routes from St. Louis to Ireland.
Search flight deals

Frequently asked questions about flying from St. Louis to Ireland

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Ireland?

    Prices for flights from Lambert-St Louis Airport to Ireland are updated daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Ireland for you.

Can I find flights from St. Louis to Ireland with flexible booking policies on momondo?

Yes. All flights to Ireland from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Ireland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Ireland.

I’m not ready to book a flight from St. Louis to Ireland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ireland and let you know when they change.

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