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Cheap flights from St. Louis to Dublin from €345

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 19/5. 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
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Find the cheapest flights from St. Louis to Dublin

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
17:32 - 07:45
STL
-
DUB
32h 13m
2 stops
United Airlines Logo
09:20 - 23:50
DUB
-
STL
44h 30m
2 stops
€588United Airlines
Tue, 1 Sep - Wed, 9 Sep
Air Canada Logo
12:10 - 07:45
STL
-
DUB
13h 35m
1 stop
Air Canada Logo
09:50 - 18:42
DUB
-
STL
14h 52m
1 stop
€591Air Canada
Sun, 16 Aug - Tue, 25 Aug
Air Canada Logo
08:00 - 07:45
STL
-
DUB
17h 45m
2 stops
Air Canada Logo
09:50 - 18:42
DUB
-
STL
14h 52m
1 stop
€595Air Canada
Sun, 16 Aug - Tue, 25 Aug
Air Canada Logo
08:55 - 08:15
STL
-
DUB
17h 20m
1 stop
Air Canada Logo
09:20 - 18:41
DUB
-
STL
15h 21m
1 stop
€596Air Canada
Wed, 2 Sep - Tue, 15 Sep
United Airlines Logo
09:16 - 09:45
STL
-
DUB
18h 29m
1 stop
United Airlines Logo
09:20 - 14:02
DUB
-
STL
10h 42m
1 stop
€597United Airlines
Tue, 11 Aug - Wed, 19 Aug
Air Canada Logo
09:16 - 07:45
STL
-
DUB
16h 29m
2 stops
Air Canada Logo
09:50 - 20:07
DUB
-
STL
16h 17m
2 stops
€598Air Canada
Sun, 16 Aug - Tue, 25 Aug
Air Canada Logo
08:55 - 08:15
STL
-
DUB
17h 20m
1 stop
Air Canada Logo
09:20 - 20:07
DUB
-
STL
16h 47m
1 stop
€599Air Canada
Tue, 11 Aug - Wed, 19 Aug
Multiple Airlines Logo
13:18 - 07:45
STL
-
DUB
12h 27m
2 stops
Multiple Airlines Logo
09:20 - 18:42
DUB
-
STL
15h 22m
2 stops
€602Multiple Airlines
Mon, 17 Aug - Tue, 25 Aug
Air Canada Logo
14:40 - 07:45
STL
-
DUB
35h 05m
2 stops
Air Canada Logo
09:20 - 14:02
DUB
-
STL
10h 42m
1 stop
€603Air Canada
Tue, 11 Aug - Wed, 19 Aug
Delta Logo
09:00 - 08:45
STL
-
DUB
17h 45m
1 stop
Delta Logo
05:55 - 16:45
DUB
-
STL
16h 50m
2 stops
€605Delta
Tue, 11 Aug - Wed, 19 Aug

United Airlines flights from St. Louis to Dublin

Our best United Airlines deals on St. Louis to Dublin flight tickets
United Airlines
1 Sept
STL17:32Lambert-St Louis
32h 13m
2 stops
DUB07:45Dublin
9 Sept
DUB09:20Dublin
44h 30m
2 stops
STL23:50Lambert-St Louis
€588
United Airlines
11 Aug
STL09:16Lambert-St Louis
18h 29m
1 stop
DUB09:45Dublin
19 Aug
DUB09:20Dublin
10h 42m
1 stop
STL14:02Lambert-St Louis
€597
United Airlines
5 May
STL17:28Lambert-St Louis
10h 17m
1 stop
DUB09:45Dublin
12 May
DUB09:50Dublin
42h 40m
2 stops
STL22:30Lambert-St Louis
€634

Lufthansa flights from St. Louis to Dublin

Our best Lufthansa deals on St. Louis to Dublin flight tickets
Lufthansa
16 Aug
STL12:10Lambert-St Louis
13h 35m
1 stop
DUB07:45Dublin
25 Aug
DUB09:20Dublin
15h 22m
2 stops
STL18:42Lambert-St Louis
€624
Lufthansa
16 Aug
STL12:10Lambert-St Louis
14h 05m
2 stops
DUB08:15Dublin
25 Aug
DUB09:20Dublin
15h 22m
2 stops
STL18:42Lambert-St Louis
€631
Lufthansa
6 Sept
STL18:55Lambert-St Louis
21h 20m
2 stops
DUB22:15Dublin
13 Sept
DUB05:55Dublin
21h 27m
2 stops
STL21:22Lambert-St Louis
€686

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 10 April 2026.
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

Cheapest return flight

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 1/9

17:32-07:45

2 stops32h 13m

Dublin

Wed 9/9

09:20-23:50

2 stops44h 30m

€588

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 16/8

12:10-07:45

1 stop13h 35m

Dublin

Tue 25/8

09:50-18:42

1 stop14h 52m

€591

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 16/8

08:00-07:45

2 stops17h 45m

Dublin

Tue 25/8

09:50-18:42

1 stop14h 52m

€595

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 2/9

08:55-08:15

1 stop17h 20m

Dublin

Tue 15/9

09:20-18:41

1 stop15h 21m

€596

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 11/8

09:16-09:45

1 stop18h 29m

Dublin

Wed 19/8

09:20-14:02

1 stop10h 42m

€597

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 16/8

09:16-07:45

2 stops16h 29m

Dublin

Tue 25/8

09:50-20:07

2 stops16h 17m

€598

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 11/8

08:55-08:15

1 stop17h 20m

Dublin

Wed 19/8

09:20-20:07

1 stop16h 47m

€599
Fastest return journey

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 17/8

13:18-07:45

2 stops12h 27m

Dublin

Tue 25/8

09:20-18:42

2 stops15h 22m

€602

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 11/8

14:40-07:45

2 stops35h 05m

Dublin

Wed 19/8

09:20-14:02

1 stop10h 42m

€603

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 11/8

09:00-08:45

1 stop17h 45m

Dublin

Wed 19/8

05:55-16:45

2 stops16h 50m

€605

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 January, then book flights to Dublin from St. Louis during February instead. Flights to Dublin in February, while not as cheap as those in January, still average around €465.

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 €622 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 €508 on momondo.

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

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

Fastest flight time

10h 50m

Direct flights

None
The fastest flight from St. Louis to Dublin takes 10h 50m
There are no direct flights from St. Louis to Dublin. There are no popular flight routes from St. Louis to Dublin.
Search flight deals

Frequently asked questions about flying from St. Louis to Dublin

  • 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 50m.

  • 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
Cavan
Wicklow
Dundalk
Naas
Tullamore
Kildare
Bray
Swords
Gorey
Mullingar
Leixlip
Malahide
Maynooth
Carlingford
Castleknock
Enniscorthy
Arklow
Thurles

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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