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

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

What airlines fly to Dublin?

American Airlines, United Airlines and Air Canada are the top three most popular airlines that fly to Dublin from St. Louis according to our data. American Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 9 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 July 2025, there are 9 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.

$281 Cheap Flights from St. Louis to Dublin in 2025

Q: 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 $885 to $1,225. The lowest price recently found on this route was $384.

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Find the cheapest flights from St. Louis to Dublin

Round-trip

One-way

Last minute

Cheap round-trip flights

5:28 pm - 9:45 amSTL-DUB

10h 17m1 stop

9:00 am - 2:20 pmDUB-STL

35h 20m2 stops

$384United Airlines

Find Deal

Tue, Oct 21 - Wed, Nov 5

9:20 am - 8:15 amSTL-DUB

16h 55m2 stops

9:00 am - 3:29 pmDUB-STL

36h 29m2 stops

$391Air Canada

Find Deal

Tue, Oct 21 - Wed, Nov 5

12:25 pm - 9:45 amSTL-DUB

15h 20m1 stop

9:00 am - 3:29 pmDUB-STL

12h 29m1 stop

$397United Airlines

Find Deal

Tue, Oct 21 - Wed, Nov 5

9:15 am - 7:45 amSTL-DUB

16h 30m2 stops

9:20 am - 7:45 pmDUB-STL

40h 25m2 stops

$404Air Canada

Find Deal

Wed, Aug 13 - Tue, Aug 19

7:20 am - 9:15 amSTL-DUB

19h 55m2 stops

10:45 am - 9:59 pmDUB-STL

17h 14m2 stops

$417Delta

Find Deal

Tue, Oct 21 - Wed, Nov 5

11:20 am - 10:15 amSTL-DUB

16h 55m2 stops

10:55 am - 8:43 amDUB-STL

27h 48m2 stops

$432Iberia

Find Deal

Tue, Nov 4 - Wed, Nov 12

1:26 pm - 8:45 amSTL-DUB

13h 19m1 stop

5:55 am - 11:24 pmDUB-STL

23h 29m2 stops

$437Delta

Find Deal

Tue, Aug 12 - Tue, Aug 19

11:49 am - 7:30 amSTL-DUB

13h 41m1 stop

5:10 am - 1:55 pmDUB-STL

14h 45m1 stop

$441Lufthansa

Find Deal

Tue, Nov 4 - Fri, Nov 14

1:03 pm - 6:30 amSTL-DUB

11h 27m1 stop

1:45 pm - 9:53 pmDUB-STL

14h 08m1 stop

$478Iberia

Find Deal

Mon, Sep 8 - Fri, Sep 19

12:25 pm - 4:55 pmSTL-DUB

22h 30m2 stops

10:50 am - 10:47 pmDUB-STL

16h 57m2 stops

$513Lufthansa

Find Deal

Mon, Oct 20 - Wed, Oct 29

Delta flights from St. Louis to Dublin

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

Delta

Oct 21

STL7:20 amLambert-St Louis

19h 55m

2 stops

DUB9:15 amDublin

Nov 5

DUB10:45 amDublin

17h 14m

2 stops

STL9:59 pmLambert-St Louis

$417

Find similar

Delta

Aug 12

STL1:26 pmLambert-St Louis

13h 19m

1 stop

DUB8:45 amDublin

Aug 19

DUB5:55 amDublin

23h 29m

2 stops

STL11:24 pmLambert-St Louis

$437

Find similar

Delta

Aug 12

STL10:45 amLambert-St Louis

15h 30m

2 stops

DUB8:15 amDublin

Aug 19

DUB5:55 amDublin

23h 29m

2 stops

STL11:24 pmLambert-St Louis

$457

Find similar

United Airlines flights from St. Louis to Dublin

Our best United Airlines deals on St. Louis to Dublin flight tickets

United Airlines

Oct 21

STL5:28 pmLambert-St Louis

10h 17m

1 stop

DUB9:45 amDublin

Nov 5

DUB9:00 amDublin

35h 20m

2 stops

STL2:20 pmLambert-St Louis

$384

Find similar

United Airlines

Oct 21

STL12:25 pmLambert-St Louis

15h 20m

1 stop

DUB9:45 amDublin

Nov 5

DUB9:00 amDublin

12h 29m

1 stop

STL3:29 pmLambert-St Louis

$397

Find similar

United Airlines

Oct 21

STL9:15 amLambert-St Louis

17h 00m

1 stop

DUB8:15 amDublin

Nov 5

DUB9:00 amDublin

12h 29m

1 stop

STL3:29 pmLambert-St Louis

$399

Find similar

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

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

What is the cheapest month to fly to Dublin?

In general, February 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 $698. If you’re not able to fly to Dublin in February, then November is your next best option. Flight prices from St. Louis to Dublin during November average around $708.

What is the cheapest day to depart on your flight to Dublin?

The cheapest day to depart from St. Louis to Dublin is on a Wednesday. Travelers who choose to depart for Dublin on a Wednesday will often find tickets for as low as $865. Flights from St. Louis to Dublin on a Saturday will generally be more expensive and average around $972. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Dublin?

In the evening is the cheapest time of day to fly from St. Louis to Dublin when you can find flight prices for as low as $556. Flying to Dublin in the evening is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $1,057.

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 $900 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 $692 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 5% 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 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	$281
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 $281. The best round-trip flight deal from St. Louis to Dublin found on momondo in the last 72 hours is $384.

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)

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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 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 many operators does momondo search for flights from Lambert-St Louis Airport to Dublin Airport?
As of July 2025, there are 9 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 United Airlines (29% of total bookings). The next most popular airlines are American Airlines (28%), Air Canada (17%), and Iberia (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
KLM	PriceFrom $482	Free Cancellation	Rating 7.8 1,372 reviews	Search KLM flights
Air Canada	PriceFrom $485	Free Cancellation	Rating 7.1 9,695 reviews	Search Air Canada flights
Iberia	PriceFrom $485	Free Cancellation	Rating 7.0 2,828 reviews	Search Iberia flights
British Airways	PriceFrom $499	Free Cancellation	Rating 6.6 7,109 reviews	Search British Airways flights
United Airlines	PriceFrom $505	Free Cancellation	Rating 7.4 8,846 reviews	Search United Airlines flights
Lufthansa	PriceFrom $560	Free Cancellation	Rating 6.8 7,199 reviews	Search Lufthansa flights
American Airlines	PriceFrom $568	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $569	Free Cancellation	Rating 8.0 7,951 reviews	Search Delta flights
Aer Lingus	PriceFrom $736	Free Cancellation	Rating 7.1 1,152 reviews	Search Aer Lingus flights

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Maynooth

Athlone

Dundalk

Malahide

Mullingar

Leixlip

Naas

Castleknock

Cavan

Kildare

Drogheda

Arklow

Bray

Enniscorthy

Wicklow

Tullamore

Slane

Thurles

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.