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

Lufthansa, Austrian Airlines, and United Airlines are the most popular carriers operating from Lambert-St Louis to Dublin

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 offers the lowest fares from St. Louis to Dublin?

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

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.

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 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.

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.

$423 Cheap Flights from St. Louis to Dublin in 2025/26

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 $535 to $730. The lowest price recently found on this route was $423.

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Find the cheapest flights from St. Louis to Dublin

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:40 am - 9:20 amSTL-DUB

20h 40m2 stops

10:45 am - 8:24 amDUB-STL

27h 39m1 stop

$423Delta

Find Deal

Sun, Nov 9 - Tue, Nov 25

4:30 pm - 8:45 amSTL-DUB

10h 15m1 stop

9:45 am - 4:49 pmDUB-STL

13h 04m1 stop

$426KLM

Find Deal

Sun, Nov 9 - Tue, Nov 25

4:32 pm - 8:45 amSTL-DUB

10h 13m1 stop

9:45 am - 10:16 pmDUB-STL

18h 31m1 stop

$433Delta

Find Deal

Wed, Dec 3 - Tue, Dec 23

6:40 am - 9:20 amSTL-DUB

20h 40m2 stops

5:55 am - 4:07 pmDUB-STL

16h 12m2 stops

$443Delta

Find Deal

Sun, Nov 9 - Tue, Nov 25

5:24 pm - 8:10 amSTL-DUB

32h 46m1 stop

9:00 am - 4:28 pmDUB-STL

37h 28m2 stops

$455United Airlines

Find Deal

Mon, Dec 1 - Mon, Dec 8

3:14 pm - 10:20 amSTL-DUB

13h 06m2 stops

9:00 am - 6:47 pmDUB-STL

39h 47m2 stops

$460United Airlines

Find Deal

Tue, Nov 11 - Mon, Nov 17

12:06 pm - 9:50 amSTL-DUB

15h 44m2 stops

1:10 pm - 11:30 pmDUB-STL

16h 20m2 stops

$470British Airways

Find Deal

Sat, Jan 31 - Thu, Feb 12

12:06 pm - 12:45 pmSTL-DUB

18h 39m2 stops

5:55 pm - 4:30 pmDUB-STL

28h 35m2 stops

$567British Airways

Find Deal

Sat, Jan 10 - Sat, Jan 17

9:33 am - 8:40 amSTL-DUB

17h 07m1 stop

11:30 am - 10:44 pmDUB-STL

17h 14m1 stop

$583Iberia

Find Deal

Sat, Jan 10 - Sat, Jan 17

4:05 pm - 1:35 pmSTL-DUB

15h 30m2 stops

10:00 am - 10:00 pmDUB-STL

18h 00m3 stops

$689Air Canada

Find Deal

Sat, Jan 31 - Thu, Feb 12

Delta flights from St. Louis to Dublin

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

Delta

Nov 9

STL6:40 amLambert-St Louis

20h 40m

2 stops

DUB9:20 amDublin

Nov 25

DUB10:45 amDublin

27h 39m

1 stop

STL8:24 amLambert-St Louis

$423

Find similar

Delta

Dec 3

STL4:32 pmLambert-St Louis

10h 13m

1 stop

DUB8:45 amDublin

Dec 23

DUB9:45 amDublin

18h 31m

1 stop

STL10:16 pmLambert-St Louis

$433

Find similar

Delta

Nov 9

STL6:40 amLambert-St Louis

20h 40m

2 stops

DUB9:20 amDublin

Nov 25

DUB5:55 amDublin

16h 12m

2 stops

STL4:07 pmLambert-St Louis

$443

Find similar

KLM flights from St. Louis to Dublin

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

KLM

Nov 9

STL4:30 pmLambert-St Louis

10h 15m

1 stop

DUB8:45 amDublin

Nov 25

DUB9:45 amDublin

13h 04m

1 stop

STL4:49 pmLambert-St Louis

$426

Find similar

KLM

Dec 3

STL4:32 pmLambert-St Louis

14h 08m

2 stops

DUB12:40 pmDublin

Dec 10

DUB11:30 amDublin

16h 27m

2 stops

STL9:57 pmLambert-St Louis

$454

Find similar

KLM

Jan 2

STL3:41 pmLambert-St Louis

10h 04m

1 stop

DUB7:45 amDublin

Jan 17

DUB5:55 amDublin

16h 43m

2 stops

STL4:38 pmLambert-St Louis

$581

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 11/9

6:40 am-9:20 am

2 stops20h 40m

Dublin

Tue 11/25

10:45 am-8:24 am

1 stop27h 39m

$423

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 11/9

4:30 pm-8:45 am

1 stop10h 15m

Dublin

Tue 11/25

9:45 am-4:49 pm

1 stop13h 04m

$426

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 12/3

4:32 pm-8:45 am

1 stop10h 13m

Dublin

Tue 12/23

9:45 am-10:16 pm

1 stop18h 31m

$433

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 11/9

6:40 am-9:20 am

2 stops20h 40m

Dublin

Tue 11/25

5:55 am-4:07 pm

2 stops16h 12m

$443

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 12/1

5:24 pm-8:10 am

1 stop32h 46m

Dublin

Mon 12/8

9:00 am-4:28 pm

2 stops37h 28m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 11/11

3:14 pm-10:20 am

2 stops13h 06m

Dublin

Mon 11/17

9:00 am-6:47 pm

2 stops39h 47m

$460

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 1/31

12:06 pm-9:50 am

2 stops15h 44m

Dublin

Thu 2/12

1:10 pm-11:30 pm

2 stops16h 20m

$470

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 1/10

12:06 pm-12:45 pm

2 stops18h 39m

Dublin

Sat 1/17

5:55 pm-4:30 pm

2 stops28h 35m

$567

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 1/10

9:33 am-8:40 am

1 stop17h 07m

Dublin

Sat 1/17

11:30 am-10:44 pm

1 stop17h 14m

$583

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 1/31

4:05 pm-1:35 pm

2 stops15h 30m

Dublin

Thu 2/12

10:00 am-10:00 pm

3 stops18h 00m

$689

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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?

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 $563. 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 $849 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 04m.
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 1,405 reviews	Search KLM flights
Air Canada	PriceFrom $462	Free Cancellation	Rating 7.1 10,397 reviews	Search Air Canada flights
British Airways	PriceFrom $463	Free Cancellation	Rating 6.7 7,494 reviews	Search British Airways flights
Iberia	PriceFrom $482	Free Cancellation	Rating 7.0 3,006 reviews	Search Iberia flights
United Airlines	PriceFrom $507	Free Cancellation	Rating 7.4 8,996 reviews	Search United Airlines flights
Lufthansa	PriceFrom $526	Free Cancellation	Rating 6.8 7,544 reviews	Search Lufthansa flights
Delta	PriceFrom $532	Free Cancellation	Rating 7.9 8,001 reviews	Search Delta flights
American Airlines	PriceFrom $560	Free Cancellation	Rating 7.2 11,033 reviews	Search American Airlines flights
Aer Lingus	PriceFrom $736	Free Cancellation	Rating 7.2 1,365 reviews	Search Aer Lingus flights

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Athlone

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 $423

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Dublin departing on 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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Delta flights from St. Louis to Dublin

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

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Our best KLM 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 typical price of a round-trip flight between St. Louis and Dublin?

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

Lufthansa, Austrian Airlines, and United Airlines are the most popular carriers operating 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?

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