Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from St. Louis to Dublin from €240

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 27/7. 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
Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Dublin

Cheap return flights

United Airlines Logo
17:28 - 09:45STL-DUB
10h 17m1 stop
United Airlines Logo
09:00 - 14:20DUB-STL
35h 20m2 stops
€329United Airlines
Find Deal
Tue, 21 Oct - Wed, 5 Nov
United Airlines Logo
12:25 - 09:45STL-DUB
15h 20m1 stop
United Airlines Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
€340United Airlines
Find Deal
Tue, 21 Oct - Wed, 5 Nov
Air Canada Logo
16:05 - 08:15STL-DUB
10h 10m1 stop
Air Canada Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
€341Air Canada
Find Deal
Tue, 21 Oct - Wed, 5 Nov
Air Canada Logo
09:15 - 07:45STL-DUB
16h 30m2 stops
Air Canada Logo
09:20 - 19:45DUB-STL
40h 25m2 stops
€345Air Canada
Find Deal
Wed, 13 Aug - Tue, 19 Aug
KLM Logo
13:30 - 07:45STL-DUB
13h 15m1 stop
KLM Logo
09:45 - 15:58DUB-STL
12h 13m1 stop
€353KLM
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Delta Logo
07:20 - 09:15STL-DUB
19h 55m2 stops
Delta Logo
10:45 - 21:59DUB-STL
17h 14m2 stops
€357Delta
Find Deal
Tue, 21 Oct - Wed, 5 Nov
Delta Logo
13:26 - 08:45STL-DUB
13h 19m1 stop
Delta Logo
05:55 - 23:24DUB-STL
23h 29m2 stops
€374Delta
Find Deal
Tue, 12 Aug - Tue, 19 Aug
Lufthansa Logo
11:49 - 07:30STL-DUB
13h 41m1 stop
Lufthansa Logo
05:10 - 13:55DUB-STL
14h 45m1 stop
€377Lufthansa
Find Deal
Tue, 4 Nov - Fri, 14 Nov
KLM Logo
13:30 - 09:15STL-DUB
13h 45m2 stops
KLM Logo
09:45 - 23:02DUB-STL
18h 17m1 stop
€413KLM
Find Deal
Mon, 20 Oct - Tue, 28 Oct
Lufthansa Logo
12:25 - 16:55STL-DUB
22h 30m2 stops
Lufthansa Logo
10:50 - 22:47DUB-STL
16h 57m2 stops
€439Lufthansa
Find Deal
Mon, 20 Oct - Wed, 29 Oct

United Airlines flights from St. Louis to Dublin

Our best United Airlines deals on St. Louis to Dublin flight tickets
United Airlines
21 Oct
STL17:28Lambert-St Louis
10h 17m
1 stop
DUB09:45Dublin
5 Nov
DUB09:00Dublin
35h 20m
2 stops
STL14:20Lambert-St Louis
€329
Find similar
United Airlines
21 Oct
STL12:25Lambert-St Louis
15h 20m
1 stop
DUB09:45Dublin
5 Nov
DUB09:00Dublin
12h 29m
1 stop
STL15:29Lambert-St Louis
€340
Find similar
United Airlines
21 Oct
STL12:25Lambert-St Louis
15h 55m
2 stops
DUB10:20Dublin
5 Nov
DUB09:00Dublin
12h 29m
1 stop
STL15:29Lambert-St Louis
€344
Find similar

Air Canada flights from St. Louis to Dublin

Our best Air Canada deals on St. Louis to Dublin flight tickets
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
€341
Find similar
Air Canada
13 Aug
STL09:15Lambert-St Louis
16h 30m
2 stops
DUB07:45Dublin
19 Aug
DUB09:20Dublin
40h 25m
2 stops
STL19:45Lambert-St Louis
€345
Find similar
Air Canada
21 Oct
STL17:28Lambert-St Louis
32h 47m
2 stops
DUB08:15Dublin
5 Nov
DUB09:00Dublin
35h 20m
2 stops
STL14:20Lambert-St Louis
€347
Find similar

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 €606.

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 €770 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 €592 on momondo.

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

As of July 2025, prices for St. Louis to Dublin flights are approximately 4% 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

Best price found

€240

Fastest flight time

9h 56m

Direct flights

None

Airports in Dublin

1 airport
The best one-way flight to Dublin from St. Louis in the past 72 hours is €240. The best return flight deal from St. Louis to Dublin found on momondo in the last 72 hours is €329.
The fastest flight from St. Louis to Dublin takes 9h 56m
There are no direct flights from St. Louis to Dublin. Popular non-direct route for this connection is Lambert-St Louis Airport - Dublin Airport.
There is 1 airport near Dublin: Dublin (DUB)
Search flight deals

  • 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 9h 56m.

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

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.

An easier way to manage your Dublin trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 17/7
Thu 24/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland