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

Flights via Newark (EWR) offer the lowest average round-trip price of $463.

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

Chicago (ORD) was the most common stop: 47% of momondo users choosing 1-stop flights on this route connected there.

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.

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

Flights connecting via Toronto (YYZ) have the shortest average one-way travel time: 10h 11m.

What airlines fly to Dublin?

United Airlines, American Airlines and Air Canada are the top three most popular airlines that fly to Dublin from St. Louis according to our data. United Airlines is the first choice among our users, with 42% 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 November 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.

$319 Cheap Flights from St. Louis to Dublin in 2025/26

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Cheap round-trip flights

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11:50 am - 7:30 amSTL-DUB

13h 40m1 stop

9:30 am - 11:57 pmDUB-STL

20h 27m1 stop

$392Austrian Airlines

Find Deal

Wed, Dec 10 - Wed, Dec 24

11:50 am - 7:30 amSTL-DUB

13h 40m1 stop

9:30 am - 11:42 pmDUB-STL

20h 12m1 stop

$430Austrian Airlines

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Tue, Dec 9 - Tue, Dec 16

11:50 am - 7:30 amSTL-DUB

13h 40m1 stop

10:40 am - 5:03 pmDUB-STL

12h 23m1 stop

$431Lufthansa

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Wed, Dec 3 - Wed, Dec 10

1:00 pm - 8:10 amSTL-DUB

13h 10m1 stop

10:40 am - 5:03 pmDUB-STL

12h 23m1 stop

$432Lufthansa

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Fri, Dec 5 - Wed, Dec 10

8:00 am - 8:10 amSTL-DUB

18h 10m1 stop

9:00 am - 4:28 pmDUB-STL

37h 28m2 stops

$455United Airlines

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Thu, Dec 4 - Mon, Dec 8

11:50 am - 7:30 amSTL-DUB

13h 40m1 stop

9:30 am - 11:42 pmDUB-STL

20h 12m1 stop

$458Austrian Airlines

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Fri, Dec 5 - Tue, Dec 9

4:05 pm - 5:45 pmSTL-DUB

19h 40m2 stops

9:00 am - 3:29 pmDUB-STL

12h 29m1 stop

$459Multiple Airlines

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Wed, Dec 3 - Wed, Dec 10

3:19 pm - 10:20 amSTL-DUB

13h 01m2 stops

9:00 am - 9:58 pmDUB-STL

42h 58m2 stops

$460United Airlines

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Fri, Dec 5 - Wed, Dec 10

6:42 pm - 7:10 amSTL-DUB

30h 28m2 stops

9:00 am - 2:23 pmDUB-STL

35h 23m2 stops

$462Air Canada

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Wed, Dec 3 - Sun, Dec 7

11:40 am - 7:45 amSTL-DUB

14h 05m1 stop

10:45 am - 8:47 pmDUB-STL

16h 02m2 stops

$463Delta

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Fri, Dec 5 - Tue, Dec 9

American Airlines flights from St. Louis to Dublin

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

American Airlines

Feb 5

STL2:54 pmLambert-St Louis

13h 21m

2 stops

DUB10:15 amDublin

Feb 14

DUB6:40 amDublin

17h 23m

2 stops

STL6:03 pmLambert-St Louis

$480

Find similar

American Airlines

Nov 22

STL11:42 amLambert-St Louis

13h 28m

1 stop

DUB7:10 amDublin

Nov 29

DUB11:30 amDublin

17h 20m

1 stop

STL10:50 pmLambert-St Louis

$980

Find similar

American Airlines

Nov 22

STL2:08 pmLambert-St Louis

12h 32m

2 stops

DUB8:40 amDublin

Nov 29

DUB11:30 amDublin

17h 20m

1 stop

STL10:50 pmLambert-St Louis

$985

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British Airways flights from St. Louis to Dublin

Our best British Airways deals on St. Louis to Dublin flight tickets

British Airways

Apr 8

STL2:43 pmLambert-St Louis

13h 02m

2 stops

DUB9:45 amDublin

Apr 16

DUB10:40 amDublin

18h 44m

2 stops

STL11:24 pmLambert-St Louis

$494

Find similar

British Airways

Apr 26

STL10:00 pmLambert-St Louis

15h 35m

1 stop

DUB7:35 pmDublin

May 4

DUB8:55 pmDublin

28h 35m

1 stop

STL7:30 pmLambert-St Louis

$521

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British Airways

Apr 8

STL4:39 pmLambert-St Louis

13h 16m

2 stops

DUB11:55 amDublin

Apr 16

DUB10:40 amDublin

17h 08m

2 stops

STL9:48 pmLambert-St Louis

$535

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Fly from

Fly to

Route

Depart

Return

Price

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 12/10

11:50 am-7:30 am

1 stop13h 40m

Dublin

Wed 12/24

9:30 am-11:57 pm

1 stop20h 27m

$392

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 12/9

11:50 am-7:30 am

1 stop13h 40m

Dublin

Tue 12/16

9:30 am-11:42 pm

1 stop20h 12m

$430

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 12/3

11:50 am-7:30 am

1 stop13h 40m

Dublin

Wed 12/10

10:40 am-5:03 pm

1 stop12h 23m

$431

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 12/5

1:00 pm-8:10 am

1 stop13h 10m

Dublin

Wed 12/10

10:40 am-5:03 pm

1 stop12h 23m

$432

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 12/4

8:00 am-8:10 am

1 stop18h 10m

Dublin

Mon 12/8

9:00 am-4:28 pm

2 stops37h 28m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 12/5

11:50 am-7:30 am

1 stop13h 40m

Dublin

Tue 12/9

9:30 am-11:42 pm

1 stop20h 12m

$458

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 12/3

4:05 pm-5:45 pm

2 stops19h 40m

Dublin

Wed 12/10

9:00 am-3:29 pm

1 stop12h 29m

$459

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 12/5

3:19 pm-10:20 am

2 stops13h 01m

Dublin

Wed 12/10

9:00 am-9:58 pm

2 stops42h 58m

$460

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 12/3

6:42 pm-7:10 am

2 stops30h 28m

Dublin

Sun 12/7

9:00 am-2:23 pm

2 stops35h 23m

$462

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 12/5

11:40 am-7:45 am

1 stop14h 05m

Dublin

Tue 12/9

10:45 am-8:47 pm

2 stops16h 02m

$463

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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 cheapest month to fly to Dublin?

In general, November 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 $600. If you’re not able to fly to Dublin in November, then September is your next best option. Flight prices from St. Louis to Dublin during September average around $702.

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 $850 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 $622 on momondo.

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

As of November 2025, prices for St. Louis to Dublin flights are approximately 17% 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

Direct flights	None

There are no direct flights from St. Louis to Dublin. There are no popular flight routes from St. Louis to Dublin.

Search flight deals

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 10h 10m.
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 November 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 (34% of total bookings). The next most popular airlines are American Airlines (20%), Air Canada (18%), and Iberia (7%).

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 $412	Free Cancellation	Rating 7.7 1,412 reviews	Search KLM flights
Air Canada	PriceFrom $462	Free Cancellation	Rating 7.1 10,462 reviews	Search Air Canada flights
British Airways	PriceFrom $463	Free Cancellation	Rating 6.7 7,534 reviews	Search British Airways flights
Iberia	PriceFrom $482	Free Cancellation	Rating 7.0 3,027 reviews	Search Iberia flights
United Airlines	PriceFrom $507	Free Cancellation	Rating 7.4 9,027 reviews	Search United Airlines flights
Lufthansa	PriceFrom $526	Free Cancellation	Rating 6.8 7,579 reviews	Search Lufthansa flights
Delta	PriceFrom $532	Free Cancellation	Rating 7.9 8,002 reviews	Search Delta flights
American Airlines	PriceFrom $560	Free Cancellation	Rating 7.2 11,045 reviews	Search American Airlines flights
Aer Lingus	PriceFrom $736	Free Cancellation	Rating 7.2 1,377 reviews	Search Aer Lingus flights

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Swords

Dundalk

Malahide

Maynooth

Bray

Mullingar

Naas

Arklow

Castleknock

Cavan

Drogheda

Wicklow

Leixlip

Kildare

Thurles

Slane

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.

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.

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Cheap flights from St. Louis to Dublin from $319

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 2/22. 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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American Airlines flights from St. Louis to Dublin

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

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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 cheapest month to fly to Dublin?

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

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

How far in advance should I book a flight to Dublin?

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

As of November 2025, prices for St. Louis to Dublin flights are approximately 17% cheaper when compared to flights at the same time last year.

What airlines fly to Dublin?

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

Chicago (ORD) was the most common stop: 47% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Newark (EWR) offer the lowest average round-trip price of $463.

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

Flights connecting via Toronto (YYZ) have the shortest average one-way travel time: 10h 11m.

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.

When to book flights from St. Louis to Dublin

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

Direct flights

How far is Lambert-St Louis to Dublin by plane?

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

How many operators does momondo search 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?

What documentation or ID do you need to fly to Dublin Airport?

What is the most popular airline 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?

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

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

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

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

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