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Cheap flights from Ireland to St. Louis from €362

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to St. Louis departing on 28/9. 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 Ireland to St. Louis

Recent return flight deals from Ireland to St. Louis

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
19:05 - 23:39
DUB
-
STL
33h 34m
2 stops
Scandinavian Airlines Logo
13:30 - 11:45
STL
-
DUB
40h 15m
2 stops
€700Scandinavian Airlines
Tue, 27 Oct - Mon, 2 Nov
WestJet Logo
09:40 - 09:31
DUB
-
STL
29h 51m
2 stops
WestJet Logo
18:09 - 08:20
STL
-
DUB
32h 11m
2 stops
€798WestJet
Mon, 13 Jul - Mon, 27 Jul
Scandinavian Airlines Logo
12:30 - 23:39
DUB
-
STL
41h 09m
2 stops
Scandinavian Airlines Logo
11:51 - 18:20
STL
-
DUB
24h 29m
2 stops
€814Scandinavian Airlines
Thu, 3 Dec - Sun, 6 Dec
Scandinavian Airlines Logo
19:05 - 23:39
DUB
-
STL
34h 34m
2 stops
Scandinavian Airlines Logo
11:51 - 18:20
STL
-
DUB
24h 29m
2 stops
€816Scandinavian Airlines
Thu, 3 Dec - Sun, 6 Dec
WestJet Logo
09:40 - 20:39
DUB
-
STL
16h 59m
2 stops
WestJet Logo
18:09 - 08:20
STL
-
DUB
32h 11m
2 stops
€821WestJet
Thu, 2 Jul - Mon, 13 Jul
Delta Logo
05:45 - 23:18
DUB
-
STL
22h 33m
2 stops
Delta Logo
12:30 - 09:00
STL
-
DUB
14h 30m
2 stops
€836Delta
Mon, 26 Oct - Wed, 4 Nov
Delta Logo
05:45 - 23:18
DUB
-
STL
22h 33m
2 stops
Delta Logo
07:20 - 07:45
STL
-
DUB
18h 25m
1 stop
€838Delta
Mon, 26 Oct - Wed, 4 Nov
British Airways Logo
20:40 - 20:08
DUB
-
STL
28h 28m
2 stops
British Airways Logo
16:48 - 17:00
STL
-
DUB
18h 12m
2 stops
€840British Airways
Wed, 28 Oct - Tue, 3 Nov
KLM Logo
05:45 - 16:50
DUB
-
STL
16h 05m
2 stops
KLM Logo
15:42 - 07:45
STL
-
DUB
10h 03m
1 stop
€844KLM
Tue, 27 Oct - Wed, 4 Nov
Delta Logo
09:45 - 20:49
DUB
-
STL
16h 04m
1 stop
Delta Logo
16:13 - 14:30
STL
-
DUB
16h 17m
2 stops
€845Delta
Sun, 25 Oct - Tue, 3 Nov

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Scandinavian Airlines flights from Ireland to St. Louis

Our best Scandinavian Airlines deals on Ireland to St. Louis flight tickets
Scandinavian Airlines
27 Oct
DUB19:05Dublin
33h 34m
2 stops
STL23:39Lambert-St Louis
2 Nov
STL13:30Lambert-St Louis
40h 15m
2 stops
DUB11:45Dublin
€700
Scandinavian Airlines
3 Dec
DUB12:30Dublin
41h 09m
2 stops
STL23:39Lambert-St Louis
6 Dec
STL11:51Lambert-St Louis
24h 29m
2 stops
DUB18:20Dublin
€814
Scandinavian Airlines
3 Dec
DUB19:05Dublin
34h 34m
2 stops
STL23:39Lambert-St Louis
6 Dec
STL11:51Lambert-St Louis
24h 29m
2 stops
DUB18:20Dublin
€816

WestJet flights from Ireland to St. Louis

Our best WestJet deals on Ireland to St. Louis flight tickets
WestJet
13 Jul
DUB09:40Dublin
29h 51m
2 stops
STL09:31Lambert-St Louis
27 Jul
STL18:09Lambert-St Louis
32h 11m
2 stops
DUB08:20Dublin
€798
WestJet
2 Jul
DUB09:40Dublin
16h 59m
2 stops
STL20:39Lambert-St Louis
13 Jul
STL18:09Lambert-St Louis
32h 11m
2 stops
DUB08:20Dublin
€821

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to St. Louis 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 15 June 2026.
Use the filters below to find and compare flights from Ireland to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 27/10

19:05-23:39

2 stops33h 34m

Lambert-St Louis

Mon 2/11

13:30-11:45

2 stops40h 15m

€700

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 13/7

09:40-09:31

2 stops29h 51m

Lambert-St Louis

Mon 27/7

18:09-08:20

2 stops32h 11m

€798

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 3/12

12:30-23:39

2 stops41h 09m

Lambert-St Louis

Sun 6/12

11:51-18:20

2 stops24h 29m

€814

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 3/12

19:05-23:39

2 stops34h 34m

Lambert-St Louis

Sun 6/12

11:51-18:20

2 stops24h 29m

€816

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 2/7

09:40-20:39

2 stops16h 59m

Lambert-St Louis

Mon 13/7

18:09-08:20

2 stops32h 11m

€821

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 26/10

05:45-23:18

2 stops22h 33m

Lambert-St Louis

Wed 4/11

12:30-09:00

2 stops14h 30m

€836

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 26/10

05:45-23:18

2 stops22h 33m

Lambert-St Louis

Wed 4/11

07:20-07:45

1 stop18h 25m

€838

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 28/10

20:40-20:08

2 stops28h 28m

Lambert-St Louis

Tue 3/11

16:48-17:00

2 stops18h 12m

€840
Fastest return journey

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 27/10

05:45-16:50

2 stops16h 05m

Lambert-St Louis

Wed 4/11

15:42-07:45

1 stop10h 03m

€844

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 25/10

09:45-20:49

1 stop16h 04m

Lambert-St Louis

Tue 3/11

16:13-14:30

2 stops16h 17m

€845

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to St. Louis from

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

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 St. Louis?

The cheapest month to fly to St. Louis from Ireland is in November. Flight prices, which tend to average around €0, are often lower during this time because this is during the off-season. The month of September is another great option to travel to St. Louis, with average flight prices from Ireland averaging around €538.

Cheap Ireland to St. Louis flight deals and tips

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

Fastest flight time

13h 20m

Direct flights

None
The fastest flight from Ireland to St. Louis takes 13h 20m
There are no direct flights from Ireland to St. Louis. There are no popular flight routes from Ireland to St. Louis.
Search flight deals

Frequently asked questions about flying from Ireland to St. Louis

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

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

  • How many operators does momondo search for flights from Ireland to Lambert-St Louis Airport?

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

    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 Ireland to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ireland to St. Louis

Compare and see reviews for airlines that fly from Ireland to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom €649Free CancellationRating
7.1
11,660 reviews
Search American Airlines flights
United AirlinesPriceFrom €775Free CancellationRating
7.4
9,830 reviews
Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ireland to St. Louis. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to St. Louis from Ireland which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to St. Louis from Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Ireland to St. Louis flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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