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Cheap flights from St. Louis to Ireland from €337

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 5/11. 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
0 bags

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Find the cheapest flights from St. Louis to Ireland

Cheap return flights

Multiple Airlines Logo
11:49 - 09:55STL-DUB
16h 06m1 stop
Multiple Airlines Logo
09:00 - 12:15DUB-STL
33h 15m2 stops
€401Multiple Airlines
Find Deal
Mon, 17 Nov - Wed, 3 Dec
Multiple Airlines Logo
08:00 - 07:30STL-DUB
17h 30m2 stops
Multiple Airlines Logo
09:00 - 12:15DUB-STL
33h 15m2 stops
€405Multiple Airlines
Find Deal
Mon, 17 Nov - Wed, 3 Dec
Air Canada Logo
18:43 - 07:10STL-DUB
30h 27m2 stops
Air Canada Logo
09:00 - 12:15DUB-STL
33h 15m2 stops
€407Air Canada
Find Deal
Mon, 17 Nov - Wed, 3 Dec
United Airlines Logo
08:00 - 08:10STL-DUB
18h 10m1 stop
United Airlines Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
€412United Airlines
Find Deal
Mon, 17 Nov - Fri, 5 Dec
Air Canada Logo
18:43 - 07:10STL-DUB
30h 27m2 stops
Air Canada Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
€414Air Canada
Find Deal
Mon, 17 Nov - Wed, 3 Dec
United Airlines Logo
09:00 - 07:30STL-DUB
16h 30m2 stops
United Airlines Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
€416United Airlines
Find Deal
Tue, 11 Nov - Wed, 3 Dec
American Airlines Logo
18:21 - 13:35STL-DUB
13h 14m2 stops
American Airlines Logo
11:30 - 20:18DUB-STL
14h 48m1 stop
€423American Airlines
Find Deal
Tue, 10 Feb - Tue, 24 Feb
British Airways Logo
17:49 - 17:00STL-DUB
17h 11m2 stops
British Airways Logo
20:40 - 17:57DUB-STL
26h 17m2 stops
€424British Airways
Find Deal
Tue, 3 Mar - Mon, 9 Mar
American Airlines Logo
18:21 - 13:35STL-DUB
13h 14m2 stops
American Airlines Logo
11:30 - 21:44DUB-STL
16h 14m2 stops
€427American Airlines
Find Deal
Tue, 10 Feb - Tue, 24 Feb
British Airways Logo
08:39 - 19:25STL-SNN
28h 46m2 stops
British Airways Logo
17:30 - 20:24SNN-STL
32h 54m2 stops
€618British Airways
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Sun, 30 Nov - Mon, 15 Dec

United Airlines flights from St. Louis to Ireland

Our best United Airlines deals on St. Louis to Ireland flight tickets
United Airlines
17 Nov
STL08:00Lambert-St Louis
18h 10m
1 stop
DUB08:10Dublin
5 Dec
DUB09:00Dublin
12h 29m
1 stop
STL15:29Lambert-St Louis
€412
Find similar
United Airlines
11 Nov
STL09:00Lambert-St Louis
16h 30m
2 stops
DUB07:30Dublin
3 Dec
DUB09:00Dublin
12h 29m
1 stop
STL15:29Lambert-St Louis
€416
Find similar
United Airlines
15 Nov
STL18:43Lambert-St Louis
31h 27m
1 stop
DUB08:10Dublin
3 Dec
DUB09:00Dublin
12h 29m
1 stop
STL15:29Lambert-St Louis
€421
Find similar

American Airlines flights from St. Louis to Ireland

Our best American Airlines deals on St. Louis to Ireland flight tickets
American Airlines
10 Feb
STL18:21Lambert-St Louis
13h 14m
2 stops
DUB13:35Dublin
24 Feb
DUB11:30Dublin
14h 48m
1 stop
STL20:18Lambert-St Louis
€423
Find similar
American Airlines
10 Feb
STL18:21Lambert-St Louis
13h 14m
2 stops
DUB13:35Dublin
24 Feb
DUB11:30Dublin
16h 14m
2 stops
STL21:44Lambert-St Louis
€427
Find similar
American Airlines
25 Jan
STL15:36Lambert-St Louis
13h 39m
2 stops
DUB11:15Dublin
1 Feb
DUB11:30Dublin
14h 53m
1 stop
STL20:23Lambert-St Louis
€465
Find similar

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 17 September 2025.
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

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 17/11

11:49-09:55

1 stop16h 06m

Dublin

Wed 3/12

09:00-12:15

2 stops33h 15m

€401

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 17/11

08:00-07:30

2 stops17h 30m

Dublin

Wed 3/12

09:00-12:15

2 stops33h 15m

€405

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 17/11

18:43-07:10

2 stops30h 27m

Dublin

Wed 3/12

09:00-12:15

2 stops33h 15m

€407

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 17/11

08:00-08:10

1 stop18h 10m

Dublin

Fri 5/12

09:00-15:29

1 stop12h 29m

€412

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 17/11

18:43-07:10

2 stops30h 27m

Dublin

Wed 3/12

09:00-15:29

1 stop12h 29m

€414

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 11/11

09:00-07:30

2 stops16h 30m

Dublin

Wed 3/12

09:00-15:29

1 stop12h 29m

€416

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 10/2

18:21-13:35

2 stops13h 14m

Dublin

Tue 24/2

11:30-20:18

1 stop14h 48m

€423

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 3/3

17:49-17:00

2 stops17h 11m

Dublin

Mon 9/3

20:40-17:57

2 stops26h 17m

€424

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 10/2

18:21-13:35

2 stops13h 14m

Dublin

Tue 24/2

11:30-21:44

2 stops16h 14m

€427

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sun 30/11

08:39-19:25

2 stops28h 46m

Shannon

Mon 15/12

17:30-20:24

2 stops32h 54m

€618

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 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 October is another great option to travel to Ireland, with average flight prices from St. Louis averaging around €618.

How far in advance should I book a flight 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 €740 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 €526 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

Direct flights

None
There are no direct flights from St. Louis to Ireland. There are no popular flight routes from St. Louis to Ireland.
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  • 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.

Best airlines flying from St. Louis to Ireland

Compare and see reviews for airlines that fly from St. Louis to Ireland with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom €793Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

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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