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Cheap flights from St. Louis to Ireland from €247

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 5/10. 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
0 bags

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Find the cheapest flights from St. Louis to Ireland

Cheap return flights

United Airlines Logo
08:25 - 10:20STL-DUB
19h 55m1 stop
United Airlines Logo
09:00 - 12:15DUB-STL
33h 15m2 stops
€431United Airlines
Find Deal
Wed, 26 Nov - Fri, 5 Dec
United Airlines Logo
06:30 - 09:55STL-DUB
21h 25m2 stops
United Airlines Logo
09:00 - 21:58DUB-STL
42h 58m2 stops
€435United Airlines
Find Deal
Wed, 26 Nov - Fri, 5 Dec
Air Canada Logo
08:00 - 07:10STL-DUB
17h 10m2 stops
Air Canada Logo
09:00 - 12:15DUB-STL
33h 15m2 stops
€437Air Canada
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Sun, 23 Nov - Wed, 3 Dec
Logo
11:49 - 09:55STL-DUB
16h 06m1 stop
Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
€442
Find Deal
Wed, 26 Nov - Fri, 5 Dec
Air Canada Logo
16:05 - 08:15STL-DUB
10h 10m1 stop
Air Canada Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
€444Air Canada
Find Deal
Tue, 21 Oct - Wed, 5 Nov
Logo
12:25 - 08:15STL-DUB
13h 50m2 stops
Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
€448
Find Deal
Tue, 21 Oct - Wed, 5 Nov
American Airlines Logo
16:44 - 11:15STL-DUB
12h 31m2 stops
American Airlines Logo
11:30 - 20:18DUB-STL
14h 48m1 stop
€453American Airlines
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Tue, 17 Feb - Tue, 24 Feb
British Airways Logo
12:58 - 09:40STL-DUB
14h 42m2 stops
British Airways Logo
10:30 - 21:44DUB-STL
17h 14m2 stops
€454British Airways
Find Deal
Wed, 25 Feb - Thu, 5 Mar
British Airways Logo
12:58 - 09:50STL-DUB
14h 52m2 stops
British Airways Logo
10:30 - 21:44DUB-STL
17h 14m2 stops
€497British Airways
Find Deal
Thu, 26 Feb - Thu, 5 Mar
American Airlines Logo
14:15 - 11:20STL-SNN
15h 05m2 stops
American Airlines Logo
07:40 - 23:54SNN-STL
22h 14m2 stops
€559American Airlines
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Wed, 8 Oct - Tue, 14 Oct

United Airlines flights from St. Louis to Ireland

Our best United Airlines deals on St. Louis to Ireland flight tickets
United Airlines
26 Nov
STL08:25Lambert-St Louis
19h 55m
1 stop
DUB10:20Dublin
5 Dec
DUB09:00Dublin
33h 15m
2 stops
STL12:15Lambert-St Louis
€431
Find similar
United Airlines
26 Nov
STL06:30Lambert-St Louis
21h 25m
2 stops
DUB09:55Dublin
5 Dec
DUB09:00Dublin
42h 58m
2 stops
STL21:58Lambert-St Louis
€435
Find similar
United Airlines
23 Nov
STL10:00Lambert-St Louis
18h 20m
2 stops
DUB10:20Dublin
3 Dec
DUB09:00Dublin
12h 29m
1 stop
STL15:29Lambert-St Louis
€447
Find similar

Air Canada flights from St. Louis to Ireland

Our best Air Canada deals on St. Louis to Ireland flight tickets
Air Canada
23 Nov
STL08:00Lambert-St Louis
17h 10m
2 stops
DUB07:10Dublin
3 Dec
DUB09:00Dublin
33h 15m
2 stops
STL12:15Lambert-St Louis
€437
Find similar
Air Canada
21 Oct
STL16:05Lambert-St Louis
10h 10m
1 stop
DUB08:15Dublin
5 Nov
DUB09:00Dublin
12h 29m
1 stop
STL15:29Lambert-St Louis
€444
Find similar
Air Canada
2 Jan
STL18:35Lambert-St Louis
54h 35m
2 stops
DUB07:10Dublin
16 Jan
DUB09:00Dublin
12h 29m
1 stop
STL15:29Lambert-St Louis
€458
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 1 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

Wed 26/11

08:25-10:20

1 stop19h 55m

Dublin

Fri 5/12

09:00-12:15

2 stops33h 15m

€431

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 26/11

06:30-09:55

2 stops21h 25m

Dublin

Fri 5/12

09:00-21:58

2 stops42h 58m

€435

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 23/11

08:00-07:10

2 stops17h 10m

Dublin

Wed 3/12

09:00-12:15

2 stops33h 15m

€437

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 26/11

11:49-09:55

1 stop16h 06m

Dublin

Fri 5/12

09:00-15:29

1 stop12h 29m

€442

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 21/10

16:05-08:15

1 stop10h 10m

Dublin

Wed 5/11

09:00-15:29

1 stop12h 29m

€444

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 21/10

12:25-08:15

2 stops13h 50m

Dublin

Wed 5/11

09:00-15:29

1 stop12h 29m

€448

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 17/2

16:44-11:15

2 stops12h 31m

Dublin

Tue 24/2

11:30-20:18

1 stop14h 48m

€453

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 25/2

12:58-09:40

2 stops14h 42m

Dublin

Thu 5/3

10:30-21:44

2 stops17h 14m

€454

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 26/2

12:58-09:50

2 stops14h 52m

Dublin

Thu 5/3

10:30-21:44

2 stops17h 14m

€497

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 8/10

14:15-11:20

2 stops15h 05m

Shannon

Tue 14/10

07:40-23:54

2 stops22h 14m

€559

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 November is another great option to travel to Ireland, with average flight prices from St. Louis averaging around €601.

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 €758 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 €542 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 €802Free 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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Find better results for your trip to Ireland

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