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

British Airways is the most popular carrier operating from Lambert-St Louis to Dublin

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 travel time from St. Louis to Dublin?

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

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 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.

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.

$251 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.

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

9:37 am - 8:10 amSTL Lambert-St Louis-DUB Dublin

16h 33m1 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 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

9:40 am - 7:10 amSTL Lambert-St Louis-DUB Dublin

15h 30m2 stops Chicago O'Hare Intl Toronto Pearson Intl

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

12h 26m1 stop Toronto Pearson Intl

$684Multiple Airlines

Wed, Jan 20 - Thu, Jan 28

11:51 am - 8:45 amSTL Lambert-St Louis-DUB Dublin

14h 54m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

5:45 am - 4:54 pmDUB Dublin-STL Lambert-St Louis

17h 09m2 stops Amsterdam Schiphol Minneapolis St Paul

$699KLM

Tue, Feb 2 - Fri, Feb 12

11:51 am - 8:45 amSTL Lambert-St Louis-DUB Dublin

14h 54m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

1:25 pm - 11:39 pmDUB Dublin-STL Lambert-St Louis

16h 14m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$699KLM

Wed, Feb 3 - Thu, Feb 11

9:40 am - 7:10 amSTL Lambert-St Louis-DUB Dublin

39h 30m2 stops Chicago O'Hare Intl Toronto Pearson Intl

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

12h 26m1 stop Toronto Pearson Intl

$701Air Canada

Sat, Jan 30 - Thu, Feb 11

9:40 am - 7:10 amSTL Lambert-St Louis-DUB Dublin

15h 30m2 stops Chicago O'Hare Intl Toronto Pearson Intl

9:00 am - 9:13 pmDUB Dublin-STL Lambert-St Louis

18h 13m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$707Air Canada

Sun, Jan 31 - Thu, Feb 11

7:03 am - 8:45 amSTL Lambert-St Louis-DUB Dublin

19h 42m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

8:50 am - 8:32 pmDUB Dublin-STL Lambert-St Louis

17h 42m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$707Delta

Tue, Dec 8 - Tue, Dec 15

6:32 am - 8:45 amSTL Lambert-St Louis-DUB Dublin

20h 13m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl

5:45 am - 6:13 pmDUB Dublin-STL Lambert-St Louis

18h 28m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$707Delta

Tue, Dec 8 - Tue, Dec 15

Cheap last minute flights

Enter your travel dates to find the best prices.

8:55 am - 8:15 amSTL Lambert-St Louis-DUB Dublin

17h 20m1 stop Toronto Pearson Intl

6:05 am - 1:25 pmDUB Dublin-STL Lambert-St Louis

13h 20m1 stop Frankfurt am Main

$1,071Multiple Airlines

Thu, Aug 27 - Mon, Sep 7

12:10 pm - 7:45 amSTL Lambert-St Louis-DUB Dublin

13h 35m1 stop Montreal Pierre Elliott Trudeau Intl

9:50 am - 11:31 pmDUB Dublin-STL Lambert-St Louis

19h 41m2 stops Vancouver Intl Denver Intl

$1,090United Airlines

Fri, Aug 28 - Sun, Aug 30

8:40 am - 11:10 amSTL Lambert-St Louis-DUB Dublin

20h 30m2 stops Washington, D.C. Dulles Intl Newark

6:05 am - 1:25 pmDUB Dublin-STL Lambert-St Louis

13h 20m1 stop Frankfurt am Main

$1,092Multiple Airlines

Thu, Aug 27 - Mon, Sep 7

8:50 am - 7:45 amSTL Lambert-St Louis-DUB Dublin

16h 55m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

9:50 am - 11:31 pmDUB Dublin-STL Lambert-St Louis

19h 41m2 stops Vancouver Intl Denver Intl

$1,094United Airlines

Fri, Aug 28 - Sun, Aug 30

12:10 pm - 7:45 amSTL Lambert-St Louis-DUB Dublin

13h 35m1 stop Montreal Pierre Elliott Trudeau Intl

9:20 am - 2:02 pmDUB Dublin-STL Lambert-St Louis

10h 42m1 stop Toronto Pearson Intl

$1,107Air Canada

Wed, Aug 26 - Fri, Aug 28

12:10 pm - 7:45 amSTL Lambert-St Louis-DUB Dublin

13h 35m1 stop Montreal Pierre Elliott Trudeau Intl

9:20 am - 6:42 pmDUB Dublin-STL Lambert-St Louis

39h 22m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,141Air Canada

Fri, Aug 28 - Sun, Aug 30

9:15 am - 8:45 amSTL Lambert-St Louis-DUB Dublin

17h 30m1 stop Atlanta Hartsfield-Jackson

8:55 am - 11:26 pmDUB Dublin-STL Lambert-St Louis

20h 31m2 stops Amsterdam Schiphol Minneapolis St Paul

$1,151Delta

Wed, Aug 26 - Fri, Aug 28

6:30 am - 7:55 amSTL Lambert-St Louis-DUB Dublin

19h 25m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

8:55 am - 11:26 pmDUB Dublin-STL Lambert-St Louis

20h 31m2 stops Amsterdam Schiphol Minneapolis St Paul

$1,155Delta

Wed, Aug 26 - Fri, Aug 28

8:07 pm - 6:20 pmSTL Lambert-St Louis-DUB Dublin

16h 13m2 stops Chicago O'Hare Intl London Heathrow

7:00 pm - 10:55 pmDUB Dublin-STL Lambert-St Louis

33h 55m2 stops London Heathrow Charlotte Douglas

$1,258British Airways

Thu, Aug 27 - Mon, Sep 7

4:54 pm - 2:50 pmSTL Lambert-St Louis-DUB Dublin

15h 56m2 stops Chicago O'Hare Intl London Heathrow

8:40 am - 7:27 pmDUB Dublin-STL Lambert-St Louis

16h 47m2 stops London Heathrow Chicago O'Hare Intl

$8,681British Airways

Wed, Aug 26 - Wed, Sep 2

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Delta flights from St. Louis to Dublin

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

Delta

Dec 8

STL7:03 amLambert-St Louis

19h 42m

2 stops

DUB8:45 amDublin

Dec 15

DUB8:50 amDublin

17h 42m

2 stops

STL8:32 pmLambert-St Louis

$707

Delta

Feb 16

STL7:20 amLambert-St Louis

18h 25m

1 stop

DUB7:45 amDublin

Feb 23

DUB5:45 amDublin

20h 52m

2 stops

STL8:37 pmLambert-St Louis

$708

Delta

Jan 11

STL6:00 amLambert-St Louis

20h 45m

2 stops

DUB8:45 amDublin

Jan 21

DUB8:50 amDublin

20h 49m

2 stops

STL11:39 pmLambert-St Louis

$712

United Airlines flights from St. Louis to Dublin

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

United Airlines

Dec 8

STL7:00 pmLambert-St Louis

31h 10m

1 stop

DUB8:10 amDublin

Dec 15

DUB9:00 amDublin

31h 10m

2 stops

STL10:10 amLambert-St Louis

$679

United Airlines

Jan 11

STL5:34 pmLambert-St Louis

32h 36m

1 stop

DUB8:10 amDublin

Jan 21

DUB9:00 amDublin

32h 09m

3 stops

STL11:09 amLambert-St Louis

$680

United Airlines

Dec 8

STL11:05 amLambert-St Louis

14h 25m

1 stop

DUB7:30 amDublin

Dec 15

DUB9:00 amDublin

12h 26m

1 stop

STL3:26 pmLambert-St Louis

$692

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

9:37 am-8:10 am

1 stop16h 33m

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

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 1/20

9:40 am-7:10 am

2 stops15h 30m

Dublin

Thu 1/28

9:00 am-3:26 pm

1 stop12h 26m

$684

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 2/2

11:51 am-8:45 am

2 stops14h 54m

Dublin

Fri 2/12

5:45 am-4:54 pm

2 stops17h 09m

$699

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Wed 2/3

11:51 am-8:45 am

2 stops14h 54m

Dublin

Thu 2/11

1:25 pm-11:39 pm

2 stops16h 14m

$699

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sat 1/30

9:40 am-7:10 am

2 stops39h 30m

Dublin

Thu 2/11

9:00 am-3:26 pm

1 stop12h 26m

$701

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sun 1/31

9:40 am-7:10 am

2 stops15h 30m

Dublin

Thu 2/11

9:00 am-9:13 pm

2 stops18h 13m

$707

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 12/8

7:03 am-8:45 am

2 stops19h 42m

Dublin

Tue 12/15

8:50 am-8:32 pm

2 stops17h 42m

$707

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 12/8

6:32 am-8:45 am

2 stops20h 13m

Dublin

Tue 12/15

5:45 am-6:13 pm

2 stops18h 28m

$707

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 typical for flights on this route.

Typical prices usually range from $384 to $750.
The lowest price recently found on this route was $679.

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 $375. 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 $467.

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 $703 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 $503 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	$251
Fastest flight time	13h 35m
Direct flights	None

The best one-way flight to Dublin from St. Louis in the past 72 hours is $251. The best round-trip flight deal from St. Louis to Dublin found on momondo in the last 72 hours is $679.

The fastest flight from St. Louis to Dublin takes 13h 35m

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 13h 35m.
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 1,723 reviews	Search Aer Lingus flights
British Airways	PriceFrom $429	Free Cancellation	Rating 6.7 8,188 reviews	Search British Airways flights
Lufthansa	PriceFrom $430	Free Cancellation	Rating 6.8 8,217 reviews	Search Lufthansa flights
Air Canada	PriceFrom $474	Free Cancellation	Rating 7.1 11,529 reviews	Search Air Canada flights
American Airlines	PriceFrom $482	Free Cancellation	Rating 7.1 11,988 reviews	Search American Airlines flights
Delta	PriceFrom $484	Free Cancellation	Rating 7.8 8,529 reviews	Search Delta flights
United Airlines	PriceFrom $489	Free Cancellation	Rating 7.4 10,121 reviews	Search United Airlines flights
KLM	PriceFrom $532	Free Cancellation	Rating 7.8 1,565 reviews	Search KLM flights

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Bray

Portmarnock

Leixlip

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Carlingford

Drogheda

Naas

Arklow

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.

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 $251

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 10/19. 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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Delta flights from St. Louis to Dublin

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

United Airlines flights from St. Louis to Dublin

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

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See travel insights to Dublin from

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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Popular flights according to clicks in the last 7 days on momondo

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