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

Aer Lingus and WestJet 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.

$481 Cheap Flights from Ireland to St. Louis in 2025/26

1 adult

0 bags

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Find the cheapest flights from Ireland to St. Louis

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

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10:10 am - 11:37 pm

DUB

STL

43h 27m2 stops

1:00 pm - 11:45 am

STL

DUB

40h 45m2 stops

$646Scandinavian Airlines

dom., ene. 25 - sáb., feb. 7

12:30 pm - 11:37 pm

DUB

STL

41h 07m2 stops

3:45 pm - 11:45 am

STL

DUB

38h 00m2 stops

$655Scandinavian Airlines

jue., ene. 22 - lun., ene. 26

12:30 pm - 11:37 pm

DUB

STL

41h 07m2 stops

12:00 pm - 11:45 am

STL

DUB

41h 45m2 stops

$656Scandinavian Airlines

jue., ene. 22 - lun., ene. 26

5:10 am - 1:55 pm

DUB

STL

14h 45m1 stop

11:22 am - 7:30 am

STL

DUB

14h 08m1 stop

$856Lufthansa

vie., ene. 23 - jue., feb. 5

1:45 pm - 10:34 pm

DUB

STL

14h 49m1 stop

12:12 pm - 9:00 am

STL

DUB

14h 48m1 stop

$857Multiple Airlines

sáb., ene. 17 - sáb., ene. 24

5:10 am - 1:55 pm

DUB

STL

14h 45m1 stop

11:22 am - 10:05 am

STL

DUB

16h 43m2 stops

$860Lufthansa

vie., ene. 23 - jue., feb. 5

5:10 am - 11:59 pm

DUB

STL

24h 49m2 stops

1:15 pm - 8:10 am

STL

DUB

12h 55m1 stop

$861Lufthansa

sáb., ene. 17 - sáb., ene. 24

5:10 am - 11:59 pm

DUB

STL

24h 49m2 stops

12:44 pm - 10:05 am

STL

DUB

15h 21m2 stops

$865Lufthansa

sáb., ene. 17 - sáb., ene. 24

8:45 am - 7:30 pm

DUB

STL

16h 45m2 stops

1:30 pm - 7:45 am

STL

DUB

12h 15m1 stop

$870Multiple Airlines

mié., may. 6 - mié., may. 20

9:20 am - 1:55 pm

DUB

STL

34h 35m1 stop

1:15 pm - 8:10 am

STL

DUB

12h 55m1 stop

$877Lufthansa

jue., ene. 22 - lun., ene. 26

Lufthansa flights from Ireland to St. Louis

Our best Lufthansa deals on Ireland to St. Louis flight tickets

Lufthansa

Jan 23

DUB5:10 amDublin

14h 45m

1 stop

STL1:55 pmLambert-St Louis

Feb 5

STL11:22 amLambert-St Louis

14h 08m

1 stop

DUB7:30 amDublin

$856

Find similar

Lufthansa

Jan 23

DUB5:10 amDublin

14h 45m

1 stop

STL1:55 pmLambert-St Louis

Feb 5

STL11:22 amLambert-St Louis

16h 43m

2 stops

DUB10:05 amDublin

$860

Find similar

Lufthansa

Jan 17

DUB5:10 amDublin

24h 49m

2 stops

STL11:59 pmLambert-St Louis

Jan 24

STL1:15 pmLambert-St Louis

12h 55m

1 stop

DUB8:10 amDublin

$861

Find similar

United Airlines flights from Ireland to St. Louis

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

United Airlines

Jan 22

DUB10:40 amDublin

13h 03m

1 stop

STL5:43 pmLambert-St Louis

Jan 26

STL10:07 amLambert-St Louis

15h 23m

2 stops

DUB7:30 amDublin

$882

Find similar

United Airlines

Mar 5

DUB10:40 amDublin

14h 39m

1 stop

STL7:19 pmLambert-St Louis

Mar 9

STL3:23 pmLambert-St Louis

11h 47m

1 stop

DUB8:10 amDublin

$943

Find similar

United Airlines

Jan 8

DUB9:30 amDublin

17h 28m

2 stops

STL8:58 pmLambert-St Louis

Jan 13

STL3:11 pmLambert-St Louis

10h 59m

1 stop

DUB8:10 amDublin

$1,010

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

dom. 1/25

10:10 am-11:37 pm

2 stops43h 27m

Lambert-St Louis

sáb. 2/7

1:00 pm-11:45 am

2 stops40h 45m

$646

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

jue. 1/22

12:30 pm-11:37 pm

2 stops41h 07m

Lambert-St Louis

lun. 1/26

3:45 pm-11:45 am

2 stops38h 00m

$655

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

jue. 1/22

12:30 pm-11:37 pm

2 stops41h 07m

Lambert-St Louis

lun. 1/26

12:00 pm-11:45 am

2 stops41h 45m

$656

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

vie. 1/23

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

jue. 2/5

11:22 am-7:30 am

1 stop14h 08m

$856

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

sáb. 1/17

1:45 pm-10:34 pm

1 stop14h 49m

Lambert-St Louis

sáb. 1/24

12:12 pm-9:00 am

1 stop14h 48m

$857

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

vie. 1/23

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

jue. 2/5

11:22 am-10:05 am

2 stops16h 43m

$860

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

sáb. 1/17

5:10 am-11:59 pm

2 stops24h 49m

Lambert-St Louis

sáb. 1/24

1:15 pm-8:10 am

1 stop12h 55m

$861

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

sáb. 1/17

5:10 am-11:59 pm

2 stops24h 49m

Lambert-St Louis

sáb. 1/24

12:44 pm-10:05 am

2 stops15h 21m

$865

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

mié. 5/6

8:45 am-7:30 pm

2 stops16h 45m

Lambert-St Louis

mié. 5/20

1:30 pm-7:45 am

1 stop12h 15m

$870

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

jue. 1/22

9:20 am-1:55 pm

1 stop34h 35m

Lambert-St Louis

lun. 1/26

1:15 pm-8:10 am

1 stop12h 55m

$877

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.

Can stopping save me money on Ireland to St. Louis flights?

You could potentially save up to 37% on your flight if you consider stops on a Ireland to St. Louis flight.

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

Fastest flight time	13h 30m
Direct flights	None

The fastest flight from Ireland to St. Louis takes 13h 30m

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

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

Hermann

Fairview Heights

Maryland Heights

O'Fallon

Florissant

Fenton

Wentzville

Collinsville

St. Peters

Alton

Farmington

Clayton

Festus

Glencoe

Edwardsville

Eureka

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.