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Cheap flights from St. Louis to Dublin 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 Dublin 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 Dublin

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
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Wed, 26 Nov - Fri, 5 Dec
United Airlines Logo
06:15 - 10:20STL-DUB
22h 05m2 stops
United Airlines Logo
09:00 - 21:58DUB-STL
42h 58m2 stops
€436United Airlines
Find Deal
Wed, 26 Nov - Fri, 5 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
Logo
16:05 - 08:15STL-DUB
10h 10m1 stop
Logo
05:10 - 13:55DUB-STL
14h 45m1 stop
€449
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
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Wed, 25 Feb - Thu, 5 Mar
American Airlines Logo
16:44 - 11:15STL-DUB
12h 31m2 stops
American Airlines Logo
11:30 - 23:32DUB-STL
18h 02m2 stops
€458American Airlines
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Tue, 17 Feb - Tue, 24 Feb
Air Canada Logo
20:20 - 06:10STL-DUB
28h 50m1 stop
Air Canada Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
€487Air Canada
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Sat, 25 Oct - Mon, 3 Nov
Air Canada Logo
05:00 - 08:15STL-DUB
21h 15m2 stops
Air Canada Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
€491Air Canada
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Sun, 19 Oct - Mon, 3 Nov
British Airways Logo
12:58 - 09:50STL-DUB
14h 52m2 stops
British Airways Logo
10:30 - 21:44DUB-STL
17h 14m2 stops
€497British Airways
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Thu, 26 Feb - Thu, 5 Mar

United Airlines flights from St. Louis to Dublin

Our best United Airlines deals on St. Louis to Dublin 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
STL06:15Lambert-St Louis
22h 05m
2 stops
DUB10:20Dublin
5 Dec
DUB09:00Dublin
42h 58m
2 stops
STL21:58Lambert-St Louis
€436
Find similar
United Airlines
31 Jan
STL18:40Lambert-St Louis
31h 30m
1 stop
DUB08:10Dublin
12 Feb
DUB10:40Dublin
12h 34m
1 stop
STL17:14Lambert-St Louis
€460
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American Airlines flights from St. Louis to Dublin

Our best American Airlines deals on St. Louis to Dublin flight tickets
American Airlines
17 Feb
STL16:44Lambert-St Louis
12h 31m
2 stops
DUB11:15Dublin
24 Feb
DUB11:30Dublin
14h 48m
1 stop
STL20:18Lambert-St Louis
€453
Find similar
American Airlines
17 Feb
STL16:44Lambert-St Louis
12h 31m
2 stops
DUB11:15Dublin
24 Feb
DUB11:30Dublin
18h 02m
2 stops
STL23:32Lambert-St Louis
€458
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from St. Louis to Dublin 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 31 August 2025.
Use the filters below to find and compare flights from St. Louis to Dublin 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

06:15-10:20

2 stops22h 05m

Dublin

Fri 5/12

09:00-21:58

2 stops42h 58m

€436

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

05:10-13:55

1 stop14h 45m

€449

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

Tue 17/2

16:44-11:15

2 stops12h 31m

Dublin

Tue 24/2

11:30-23:32

2 stops18h 02m

€458

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 25/10

20:20-06:10

1 stop28h 50m

Dublin

Mon 3/11

09:00-15:29

1 stop12h 29m

€487

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 19/10

05:00-08:15

2 stops21h 15m

Dublin

Mon 3/11

09:00-15:29

1 stop12h 29m

€491

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

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 Dublin from

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

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 typical price of a round-trip flight between St. Louis and Dublin?

What is the cheapest month to fly to Dublin?

If you aren’t able to travel during the month of February, then book flights to Dublin from St. Louis during November instead. Flights to Dublin in November, while not as cheap as those in February, still average around €601.

How far in advance should I book a flight to Dublin?

You are more likely to see cheaper flights to Dublin from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around €757 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from St. Louis for as low as €542 on momondo.

How have St. Louis to Dublin flight prices changed over time?

As of August 2025, prices for St. Louis to Dublin flights are approximately 33% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap St. Louis to Dublin (STL to DUB) flight deals and tips

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

Direct flights

None
There are no direct flights from St. Louis to Dublin. There are no popular flight routes from St. Louis to Dublin.
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  • How far is Lambert-St Louis to Dublin by plane?

    A flight from Lambert-St Louis to Dublin will travel around 6292.4 km. By plane, this route typically takes 10h 10m.

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

    Prices for flights from Lambert-St Louis Airport to Dublin Airport were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The required travel and health documents for your Dublin Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Dublin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Athlone
Wicklow
Swords
Cavan
Dundalk
Enniscorthy
Tullamore
Kildare
Naas
Mullingar
Maynooth
Arklow
Bray
Drogheda
Gorey
Malahide
Carlingford
Portmarnock
Leixlip

Why use momondo?

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

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 Dublin for you.

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

All flight searches from St. Louis to Dublin on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between St. Louis and Dublin by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Dublin from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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