Which layover airport offers the lowest fares from St. Louis to Dublin?

Flights via Toronto (YYZ) offer the lowest average round-trip price of $412.

Which layover airport has the shortest connection time from St. Louis to Dublin?

Newark (EWR) has the shortest average layover time for this route: 1h 52m.

What is the cheapest airline that flies from Lambert-St Louis to Dublin?

Aer Lingus, British Airways, and Lufthansa are the most popular carriers operating from Lambert-St Louis to Dublin

Which airport is the most popular layover for flights between St. Louis and Dublin?

Toronto (YYZ) was the most common stop: 53% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from St. Louis to Dublin?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 10h 54m.

What airlines fly to Dublin?

Aer Lingus, United Airlines and American Airlines are the top three most popular airlines that fly to Dublin from St. Louis according to our data. Aer Lingus is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 8 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

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 many operators does momondo search for flights from Lambert-St Louis Airport to Dublin Airport?

As of August 2026, there are 8 operators available to choose from for flights from Lambert-St Louis Airport to Dublin Airport.

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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 necessary travel and health documents for your Dublin 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 license 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.

$248 Cheap Flights from St. Louis to Dublin in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Dublin

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:05 pm - 5:10 amSTL Lambert-St Louis-DUB Dublin

31h 05m1 stop Toronto Pearson Intl

1:00 pm - 3:26 pmDUB Dublin-STL Lambert-St Louis

32h 26m1 stop Toronto Pearson Intl

$338Aer Lingus

Mon, Jan 11 - Thu, Jan 21

4:05 pm - 5:10 amSTL Lambert-St Louis-DUB Dublin

31h 05m1 stop Toronto Pearson Intl

1:00 pm - 3:26 pmDUB Dublin-STL Lambert-St Louis

32h 26m1 stop Toronto Pearson Intl

$338Aer Lingus

Sat, Jan 9 - Tue, Jan 19

7:00 pm - 8:10 amSTL Lambert-St Louis-DUB Dublin

31h 10m1 stop Chicago O'Hare Intl

9:00 am - 10:10 amDUB Dublin-STL Lambert-St Louis

31h 10m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$679United Airlines

Tue, Dec 8 - Tue, Dec 15

6:30 am - 7:30 amSTL Lambert-St Louis-DUB Dublin

19h 00m1 stop Newark

9:00 am - 12:06 pmDUB Dublin-STL Lambert-St Louis

33h 06m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$679United Airlines

Tue, Dec 1 - Tue, Dec 15

4:05 pm - 11:20 amSTL Lambert-St Louis-DUB Dublin

37h 15m2 stops Toronto Pearson Intl Zurich

9:00 am - 3:26 pmDUB Dublin-STL Lambert-St Louis

12h 26m1 stop Toronto Pearson Intl

$683Multiple Airlines

Mon, Dec 7 - Thu, Dec 17

10:21 am - 7:15 amSTL Lambert-St Louis-DUB Dublin

14h 54m1 stop Dallas/Fort Worth

1:00 pm - 8:17 pmDUB Dublin-STL Lambert-St Louis

13h 17m1 stop Dallas/Fort Worth

$685Iberia

Wed, Nov 18 - Wed, Nov 25

7:04 pm - 7:10 amSTL Lambert-St Louis-DUB Dublin

30h 06m2 stops Chicago O'Hare Intl Toronto Pearson Intl

9:00 am - 12:06 pmDUB Dublin-STL Lambert-St Louis

33h 06m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$687Air Canada

Tue, Dec 8 - Tue, Dec 15

7:04 pm - 7:10 amSTL Lambert-St Louis-DUB Dublin

30h 06m2 stops Chicago O'Hare Intl Toronto Pearson Intl

9:00 am - 12:06 pmDUB Dublin-STL Lambert-St Louis

33h 06m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$687Air Canada

Tue, Dec 1 - Tue, Dec 15

11:29 am - 11:00 amSTL Lambert-St Louis-DUB Dublin

17h 31m2 stops Newark Frankfurt am Main

5:10 am - 1:45 pmDUB Dublin-STL Lambert-St Louis

14h 35m1 stop Frankfurt am Main

$689Lufthansa

Wed, Nov 18 - Wed, Nov 25

11:29 am - 11:00 amSTL Lambert-St Louis-DUB Dublin

17h 31m2 stops Newark Frankfurt am Main

5:10 am - 10:24 pmDUB Dublin-STL Lambert-St Louis

23h 14m2 stops Frankfurt am Main Chicago O'Hare Intl

$702Lufthansa

Wed, Nov 18 - Wed, Nov 25

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Iberia flights from St. Louis to Dublin

Our best Iberia deals on St. Louis to Dublin flight tickets

Iberia

Nov 18

STL10:21 amLambert-St Louis

14h 54m

1 stop

DUB7:15 amDublin

Nov 25

DUB1:00 pmDublin

13h 17m

1 stop

STL8:17 pmLambert-St Louis

$685

Iberia

Nov 4

STL1:15 pmLambert-St Louis

13h 15m

1 stop

DUB8:30 amDublin

Nov 11

DUB1:00 pmDublin

13h 19m

1 stop

STL8:19 pmLambert-St Louis

$704

Iberia

Sep 3

STL8:07 pmLambert-St Louis

9h 43m

1 stop

DUB11:50 amDublin

Sep 8

DUB9:50 amDublin

28h 30m

2 stops

STL8:20 amLambert-St Louis

$998

Lufthansa flights from St. Louis to Dublin

Our best Lufthansa deals on St. Louis to Dublin flight tickets

Lufthansa

Nov 18

STL11:29 amLambert-St Louis

17h 31m

2 stops

DUB11:00 amDublin

Nov 25

DUB5:10 amDublin

14h 35m

1 stop

STL1:45 pmLambert-St Louis

$689

Lufthansa

Nov 18

STL11:29 amLambert-St Louis

17h 31m

2 stops

DUB11:00 amDublin

Nov 25

DUB5:10 amDublin

23h 14m

2 stops

STL10:24 pmLambert-St Louis

$702

Lufthansa

Nov 9

STL6:50 pmLambert-St Louis

21h 55m

2 stops

DUB10:45 pmDublin

Nov 18

DUB5:10 amDublin

14h 35m

1 stop

STL1:45 pmLambert-St Louis

$708

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 1/11

4:05 pm-5:10 am

1 stop31h 05m

Dublin

Thu 1/21

1:00 pm-3:26 pm

1 stop32h 26m

$338

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sat 1/9

4:05 pm-5:10 am

1 stop31h 05m

Dublin

Tue 1/19

1:00 pm-3:26 pm

1 stop32h 26m

$338

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 12/8

7:00 pm-8:10 am

1 stop31h 10m

Dublin

Tue 12/15

9:00 am-10:10 am

2 stops31h 10m

$679

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 12/1

6:30 am-7:30 am

1 stop19h 00m

Dublin

Tue 12/15

9:00 am-12:06 pm

2 stops33h 06m

$679

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 12/7

4:05 pm-11:20 am

2 stops37h 15m

Dublin

Thu 12/17

9:00 am-3:26 pm

1 stop12h 26m

$683

Quickest round-trip

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Wed 11/18

10:21 am-7:15 am

1 stop14h 54m

Dublin

Wed 11/25

1:00 pm-8:17 pm

1 stop13h 17m

$685

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 12/8

7:04 pm-7:10 am

2 stops30h 06m

Dublin

Tue 12/15

9:00 am-12:06 pm

2 stops33h 06m

$687

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 12/1

7:04 pm-7:10 am

2 stops30h 06m

Dublin

Tue 12/15

9:00 am-12:06 pm

2 stops33h 06m

$687

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Wed 11/18

11:29 am-11:00 am

2 stops17h 31m

Dublin

Wed 11/25

5:10 am-1:45 pm

1 stop14h 35m

$689

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Wed 11/18

11:29 am-11:00 am

2 stops17h 31m

Dublin

Wed 11/25

5:10 am-10:24 pm

2 stops23h 14m

$702

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

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

Prices are currently low for flights on this route.

Typical prices usually range from $386 to $770.
The lowest price recently found on this route was $338.

What is the cheapest month to fly to Dublin?

In general, September is the cheapest month to fly from St. Louis to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $395. If you’re not able to fly to Dublin in September, then January is your next best option. Flight prices from St. Louis to Dublin during January average around $489.

How far in advance should I book a flight from St. Louis 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 $714 when searching weeks out. 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 $568 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 round-trip 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	$248
Fastest flight time	11h 20m
Direct flights	None

The best one-way flight to Dublin from St. Louis in the past 72 hours is $248. The best round-trip flight deal from St. Louis to Dublin found on momondo in the last 72 hours is $338.

The fastest flight from St. Louis to Dublin takes 11h 20m

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?
The straight-line distance from Lambert-St Louis to Dublin is 3909.9 mi. A reasonable flight in good conditions will take 11h 20m.
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 many operators does momondo search for flights from Lambert-St Louis Airport to Dublin Airport?
As of August 2026, there are 8 operators available to choose from for flights from Lambert-St Louis Airport to Dublin Airport.
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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 necessary travel and health documents for your Dublin 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 license 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.
What is the most popular airline from St. Louis to Dublin?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Dublin is Aer Lingus (34% of total bookings). The next most popular airlines are United Airlines (24%), American Airlines (16%), and Air Canada (9%).

Best airlines flying from St. Louis to Dublin

Compare and see reviews for airlines that fly from St. Louis to Dublin with momondo

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom $325	Free Cancellation	Rating 7.3 1,713 reviews	Search Aer Lingus flights
British Airways	PriceFrom $429	Free Cancellation	Rating 6.7 8,183 reviews	Search British Airways flights
Lufthansa	PriceFrom $430	Free Cancellation	Rating 6.8 8,203 reviews	Search Lufthansa flights
American Airlines	PriceFrom $482	Free Cancellation	Rating 7.1 11,989 reviews	Search American Airlines flights
Delta	PriceFrom $484	Free Cancellation	Rating 7.8 8,517 reviews	Search Delta flights
United Airlines	PriceFrom $489	Free Cancellation	Rating 7.4 10,110 reviews	Search United Airlines flights
Air Canada	PriceFrom $523	Free Cancellation	Rating 7.1 11,514 reviews	Search Air Canada flights
KLM	PriceFrom $532	Free Cancellation	Rating 7.8 1,562 reviews	Search KLM flights

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Bray

Portmarnock

Leixlip

Dundalk

Carlingford

Drogheda

Arklow

Naas

Slane

Castleknock

Gorey

Cavan

Maynooth

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Dublin from St. Louis.

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

Yes. momondo allows you to filter the results for St. Louis to Dublin flights to just show those with 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?

If you are not ready to book a flight from St. Louis to Dublin now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Dublin and let you know when they change.

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Cheap flights from St. Louis to Dublin from $248

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 9/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Iberia flights from St. Louis to Dublin

Our best Iberia deals on St. Louis to Dublin flight tickets

Lufthansa flights from St. Louis to Dublin

Our best Lufthansa deals on St. Louis to Dublin flight tickets

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

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

What is the cheapest month to fly to Dublin?

How far in advance should I book a flight from St. Louis to Dublin?

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

What is the cheapest airline that flies from Lambert-St Louis to Dublin?

What airlines fly to Dublin?

Which airport is the most popular layover for flights between St. Louis and Dublin?

Which layover airport offers the lowest fares from St. Louis to Dublin?

Which layover airport has the shortest travel time from St. Louis to Dublin?

Which layover airport has the shortest connection time from St. Louis to Dublin?

When to book flights from St. Louis to Dublin

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from St. Louis to Dublin

Best airlines flying from St. Louis to Dublin

Compare and see reviews for airlines that fly from St. Louis to Dublin with momondo

Traveling to a place near Dublin?

Why use momondo?

An easier way to manage your Dublin trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ireland

Airports servicing Ireland

Fly your favorite airline to Dublin

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Dublin

List of cabin classes available on flights landing in Dublin. Availability may vary depending on flight origin and airline.

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