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Cheap flights from Dublin to St. Louis from $412

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to St. Louis departing on 9/5. 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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Find the cheapest flights from Dublin to St. Louis

Cheap round-trip flights

Aer Lingus Logo
4:40 pm - 11:48 pmDUB-STL
13h 08m1 stop
Aer Lingus Logo
6:00 am - 8:10 amSTL-DUB
20h 10m1 stop
$619Aer Lingus
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Sun, Sep 7 - Thu, Sep 18
Aer Lingus Logo
3:25 pm - 11:48 pmDUB-STL
38h 23m2 stops
Aer Lingus Logo
7:23 am - 10:40 amSTL-DUB
21h 17m1 stop
$630Aer Lingus
Find Deal
Sun, Sep 7 - Thu, Sep 18
Scandinavian Airlines Logo
12:30 pm - 11:39 pmDUB-STL
41h 09m2 stops
Scandinavian Airlines Logo
1:30 pm - 11:45 amSTL-DUB
40h 15m2 stops
$732Scandinavian Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Scandinavian Airlines Logo
12:30 pm - 8:49 pmDUB-STL
38h 19m2 stops
Scandinavian Airlines Logo
1:30 pm - 11:45 amSTL-DUB
40h 15m2 stops
$843Scandinavian Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Lufthansa Logo
5:10 am - 5:39 pmDUB-STL
18h 29m2 stops
Lufthansa Logo
1:10 pm - 10:20 amSTL-DUB
15h 10m1 stop
$894Lufthansa
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Fri, Nov 21 - Sat, Nov 29
Lufthansa Logo
5:10 am - 1:55 pmDUB-STL
14h 45m1 stop
Lufthansa Logo
12:31 pm - 8:10 amSTL-DUB
13h 39m1 stop
$911Lufthansa
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Fri, Nov 21 - Sat, Nov 29
Delta Logo
5:55 am - 11:02 pmDUB-STL
23h 07m2 stops
Delta Logo
5:45 pm - 3:45 pmSTL-DUB
16h 00m2 stops
$922Delta
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Mon, Nov 3 - Tue, Nov 11
United Airlines Logo
9:00 am - 3:29 pmDUB-STL
12h 29m1 stop
United Airlines Logo
11:20 am - 9:55 amSTL-DUB
16h 35m2 stops
$924United Airlines
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Mon, Nov 3 - Tue, Nov 11
United Airlines Logo
9:00 am - 3:29 pmDUB-STL
12h 29m1 stop
United Airlines Logo
3:14 pm - 9:55 amSTL-DUB
12h 41m2 stops
$928United Airlines
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Fri, Nov 21 - Sat, Nov 29
Delta Logo
8:55 am - 8:34 pmDUB-STL
17h 39m2 stops
Delta Logo
6:00 pm - 3:00 pmSTL-DUB
15h 00m2 stops
$984Delta
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Mon, Sep 22 - Wed, Oct 1

Scandinavian Airlines flights from Dublin to St. Louis

Our best Scandinavian Airlines deals on Dublin 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
$732
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Scandinavian Airlines
Dec 4
DUB12:30 pmDublin
38h 19m
2 stops
STL8:49 pmLambert-St Louis
Dec 8
STL1:30 pmLambert-St Louis
40h 15m
2 stops
DUB11:45 amDublin
$843
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Scandinavian Airlines
Oct 7
DUB7:05 pmDublin
32h 59m
2 stops
STL10:04 pmLambert-St Louis
Oct 14
STL1:30 pmLambert-St Louis
40h 20m
2 stops
DUB11:50 amDublin
$921
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Lufthansa flights from Dublin to St. Louis

Our best Lufthansa deals on Dublin to St. Louis flight tickets
Lufthansa
Nov 21
DUB5:10 amDublin
18h 29m
2 stops
STL5:39 pmLambert-St Louis
Nov 29
STL1:10 pmLambert-St Louis
15h 10m
1 stop
DUB10:20 amDublin
$894
Find similar
Lufthansa
Nov 21
DUB5:10 amDublin
14h 45m
1 stop
STL1:55 pmLambert-St Louis
Nov 29
STL12:31 pmLambert-St Louis
13h 39m
1 stop
DUB8:10 amDublin
$911
Find similar
Lufthansa
Nov 21
DUB5:10 amDublin
14h 45m
1 stop
STL1:55 pmLambert-St Louis
Nov 29
STL5:11 pmLambert-St Louis
10h 44m
1 stop
DUB9:55 amDublin
$915
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Dublin to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Dublin to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 9/7

4:40 pm-11:48 pm

1 stop13h 08m

Lambert-St Louis

Thu 9/18

6:00 am-8:10 am

1 stop20h 10m

$619

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 9/7

3:25 pm-11:48 pm

2 stops38h 23m

Lambert-St Louis

Thu 9/18

7:23 am-10:40 am

1 stop21h 17m

$630

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

$732

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 12/4

12:30 pm-8:49 pm

2 stops38h 19m

Lambert-St Louis

Mon 12/8

1:30 pm-11:45 am

2 stops40h 15m

$843

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 11/21

5:10 am-5:39 pm

2 stops18h 29m

Lambert-St Louis

Sat 11/29

1:10 pm-10:20 am

1 stop15h 10m

$894

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 11/21

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

Sat 11/29

12:31 pm-8:10 am

1 stop13h 39m

$911

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 11/3

5:55 am-11:02 pm

2 stops23h 07m

Lambert-St Louis

Tue 11/11

5:45 pm-3:45 pm

2 stops16h 00m

$922

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 11/3

9:00 am-3:29 pm

1 stop12h 29m

Lambert-St Louis

Tue 11/11

11:20 am-9:55 am

2 stops16h 35m

$924

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-9:55 am

2 stops12h 41m

$928

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 9/22

8:55 am-8:34 pm

2 stops17h 39m

Lambert-St Louis

Wed 10/1

6:00 pm-3:00 pm

2 stops15h 00m

$984

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Dublin 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

What is the cheapest month to fly to St. Louis?

In general, August is the cheapest month to fly from Dublin 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 Dublin averaging around $835.

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

As of July 2025, prices for Dublin to St. Louis flights are approximately 24% cheaper when compared to flights at the same time last year.

When to book flights from Dublin to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Dublin to St. Louis (DUB to STL) flight deals and tips

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

Best Price Found

$412

Fastest flight time

11h 28m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Dublin in the past 72 hours is $412. The best round-trip flight deal from Dublin to St. Louis found on momondo in the last 72 hours is $619.
The fastest flight from Dublin to St. Louis takes 11h 28m
There are no direct flights from Dublin 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)
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  • How far is Dublin to Lambert-St Louis by plane?

    The straight-line distance from Dublin to Lambert-St Louis is 3909.9 mi. A reasonable flight in good conditions will take 11h 28m.

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

    Prices for flights from Dublin Airport to Lambert-St Louis Airport are updated daily.

  • How old do you have to be to fly from Dublin Airport 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 Dublin Airport 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.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
Fenton
Collinsville
O'Fallon
Alton
St. Peters
Farmington
Wentzville
Festus
Glencoe
Eureka
Edwardsville
Clayton
Shrewsbury
Grafton

Why use momondo?

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

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

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

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

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

Once all potential Dublin to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to St. Louis from Dublin are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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