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

Aer Lingus, American Airlines, and Air Canada are the most popular carriers operating from Ireland to Lambert-St Louis

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

Prices for flights from Ireland to Lambert-St Louis Airport were last updated today.

How old do you have to be to fly from Ireland to Lambert-St Louis Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$553 Cheap Flights from Ireland to St. Louis in 2025

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Ireland to St. Louis

Round-trip

One-way

Recent round-trip flight deals from Ireland to St. Louis

11:35 am - 10:05 pmDUB-STL

16h 30m1 stop

6:00 am - 8:10 amSTL-DUB

20h 10m1 stop

$624Aer Lingus

Find Deal

Fri, Sep 5 - Thu, Sep 18

12:30 pm - 11:39 pmDUB-STL

41h 09m2 stops

1:30 pm - 11:45 amSTL-DUB

40h 15m2 stops

$726Scandinavian Airlines

Find Deal

Thu, Dec 4 - Mon, Dec 8

11:30 am - 11:44 pmDUB-STL

18h 14m2 stops

7:00 am - 10:15 amSTL-DUB

21h 15m2 stops

$770

Find Deal

Tue, Nov 4 - Sun, Nov 9

11:30 am - 9:43 pmDUB-STL

16h 13m2 stops

10:30 am - 10:15 amSTL-DUB

17h 45m2 stops

$880

Find Deal

Fri, Dec 26 - Sat, Jan 10

10:55 am - 10:02 pmDUB-STL

17h 07m2 stops

3:36 pm - 12:05 pmSTL-DUB

14h 29m2 stops

$893British Airways

Find Deal

Sat, Dec 20 - Fri, Jan 9

10:45 am - 10:02 pmDUB-STL

17h 17m2 stops

4:41 pm - 12:45 pmSTL-DUB

14h 04m2 stops

$911British Airways

Find Deal

Fri, Dec 26 - Sat, Jan 3

5:10 am - 1:55 pmDUB-STL

14h 45m1 stop

1:10 pm - 10:20 amSTL-DUB

15h 10m1 stop

$913Lufthansa

Find Deal

Fri, Nov 21 - Sat, Nov 29

9:00 am - 3:29 pmDUB-STL

12h 29m1 stop

3:14 pm - 10:20 amSTL-DUB

13h 06m2 stops

$918United Airlines

Find Deal

Fri, Nov 21 - Sat, Nov 29

9:00 am - 5:39 pmDUB-STL

14h 39m2 stops

3:14 pm - 10:20 amSTL-DUB

13h 06m2 stops

$923United Airlines

Find Deal

Fri, Nov 21 - Sat, Nov 29

11:45 am - 11:44 pmDUB-STL

17h 59m2 stops

3:50 pm - 11:00 amSTL-DUB

13h 10m1 stop

$925Lufthansa

Find Deal

Tue, Nov 4 - Sun, Nov 9

Scandinavian Airlines flights from Ireland to St. Louis

Our best Scandinavian Airlines deals on Ireland to St. Louis flight tickets

Scandinavian Airlines

Dec 4

DUB12:30 pmDublin

41h 09m

2 stops

STL11:39 pmLambert-St Louis

Dec 8

STL1:30 pmLambert-St Louis

40h 15m

2 stops

DUB11:45 amDublin

$726

Find similar

Scandinavian Airlines

Sep 22

DUB12:40 pmDublin

39h 20m

2 stops

STL10:00 pmLambert-St Louis

Oct 1

STL3:36 pmLambert-St Louis

38h 14m

2 stops

DUB11:50 amDublin

$775

Find similar

Scandinavian Airlines

Dec 4

DUB12:30 pmDublin

38h 19m

2 stops

STL8:49 pmLambert-St Louis

Dec 8

STL1:30 pmLambert-St Louis

22h 50m

2 stops

DUB6:20 pmDublin

$844

Find similar

British Airways flights from Ireland to St. Louis

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

British Airways

Dec 20

DUB10:55 amDublin

17h 07m

2 stops

STL10:02 pmLambert-St Louis

Jan 9

STL3:36 pmLambert-St Louis

14h 29m

2 stops

DUB12:05 pmDublin

$893

Find similar

British Airways

Dec 26

DUB10:45 amDublin

17h 17m

2 stops

STL10:02 pmLambert-St Louis

Jan 3

STL4:41 pmLambert-St Louis

14h 04m

2 stops

DUB12:45 pmDublin

$911

Find similar

British Airways

Nov 21

DUB10:45 amDublin

17h 44m

2 stops

STL10:29 pmLambert-St Louis

Nov 29

STL4:48 pmLambert-St Louis

15h 27m

2 stops

DUB2:15 pmDublin

$932

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 9/5

11:35 am-10:05 pm

1 stop16h 30m

Lambert-St Louis

Thu 9/18

6:00 am-8:10 am

1 stop20h 10m

$624

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 12/4

12:30 pm-11:39 pm

2 stops41h 09m

Lambert-St Louis

Mon 12/8

1:30 pm-11:45 am

2 stops40h 15m

$726

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 11/4

11:30 am-11:44 pm

2 stops18h 14m

Lambert-St Louis

Sun 11/9

7:00 am-10:15 am

2 stops21h 15m

$770

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 12/26

11:30 am-9:43 pm

2 stops16h 13m

Lambert-St Louis

Sat 1/10

10:30 am-10:15 am

2 stops17h 45m

$880

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 12/20

10:55 am-10:02 pm

2 stops17h 07m

Lambert-St Louis

Fri 1/9

3:36 pm-12:05 pm

2 stops14h 29m

$893

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 12/26

10:45 am-10:02 pm

2 stops17h 17m

Lambert-St Louis

Sat 1/3

4:41 pm-12:45 pm

2 stops14h 04m

$911

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 11/21

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

Sat 11/29

1:10 pm-10:20 am

1 stop15h 10m

$913

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 11/21

9:00 am-3:29 pm

1 stop12h 29m

Lambert-St Louis

Sat 11/29

3:14 pm-10:20 am

2 stops13h 06m

$918

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 11/21

9:00 am-5:39 pm

2 stops14h 39m

Lambert-St Louis

Sat 11/29

3:14 pm-10:20 am

2 stops13h 06m

$923

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 11/4

11:45 am-11:44 pm

2 stops17h 59m

Lambert-St Louis

Sun 11/9

3:50 pm-11:00 am

1 stop13h 10m

$925

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 Ireland to St. Louis

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 cheapest month to fly to St. Louis?

In general, August is the cheapest month to fly from Ireland to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $821. The month of February is another great option to travel to St. Louis, with average flight prices from Ireland averaging around $835.

Cheap Ireland to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to St. Louis

Best Price Found	$553
Fastest flight time	11h 39m
Direct flights	None
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Ireland in the past 72 hours is $553. The best round-trip flight deal from Ireland to St. Louis found on momondo in the last 72 hours is $624.

The fastest flight from Ireland to St. Louis takes 11h 39m

There are no direct flights from Ireland to St. Louis. Popular non-direct route for this connection is Dublin Airport - Lambert-St Louis Airport.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Ireland to Lambert-St Louis Airport?
Prices for flights from Ireland to Lambert-St Louis Airport were last updated today.
How old do you have to be to fly from Ireland to Lambert-St Louis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

St. Charles

Chesterfield

Fairview Heights

Hermann

Maryland Heights

Florissant

Fenton

O'Fallon

Collinsville

Alton

Wentzville

St. Peters

Farmington

Festus

Glencoe

Eureka

Edwardsville

Clayton

Litchfield

Shrewsbury

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to St. Louis from Ireland which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Ireland to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Ireland to St. Louis flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.