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Cheap flights from Dublin to St. Louis from $387

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 4/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Dublin to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:00 pm - 7:30 pm
DUB
-
STL
13h 30m
1 stop
Multiple Airlines Logo
2:40 pm - 7:45 am
STL
-
DUB
35h 05m
2 stops
$836Multiple Airlines
Tue, Aug 25 - Sat, Sep 5
Multiple Airlines Logo
12:30 pm - 7:30 pm
DUB
-
STL
13h 00m
1 stop
Multiple Airlines Logo
8:55 am - 8:15 am
STL
-
DUB
17h 20m
1 stop
$890Multiple Airlines
Tue, Aug 25 - Sat, Sep 5
Aer Lingus Logo
9:40 am - 7:30 pm
DUB
-
STL
15h 50m
1 stop
Aer Lingus Logo
9:35 pm - 3:45 pm
STL
-
DUB
12h 10m
1 stop
$961Aer Lingus
Wed, Apr 29 - Wed, May 6
Multiple Airlines Logo
7:50 am - 11:19 pm
DUB
-
STL
21h 29m
2 stops
Multiple Airlines Logo
2:53 pm - 8:15 am
STL
-
DUB
11h 22m
1 stop
$968Multiple Airlines
Wed, Apr 29 - Wed, May 6
Finnair Logo
9:30 am - 10:19 pm
DUB
-
STL
18h 49m
1 stop
Finnair Logo
5:00 pm - 11:50 am
STL
-
DUB
12h 50m
1 stop
$987Finnair
Sat, May 9 - Sun, May 24
Multiple Airlines Logo
9:30 am - 5:21 pm
DUB
-
STL
13h 51m
1 stop
Multiple Airlines Logo
9:34 am - 9:45 am
STL
-
DUB
18h 11m
1 stop
$994Multiple Airlines
Sat, Apr 11 - Sat, Apr 18
Multiple Airlines Logo
7:25 am - 11:19 pm
DUB
-
STL
21h 54m
2 stops
Multiple Airlines Logo
5:21 pm - 10:35 am
STL
-
DUB
11h 14m
1 stop
$999Multiple Airlines
Mon, Apr 27 - Mon, May 4
American Airlines Logo
11:45 am - 6:04 pm
DUB
-
STL
12h 19m
1 stop
American Airlines Logo
9:10 am - 9:35 am
STL
-
DUB
18h 25m
1 stop
$1,001American Airlines
Thu, Apr 23 - Sun, Apr 26
British Airways Logo
8:20 pm - 7:30 pm
DUB
-
STL
29h 10m
1 stop
British Airways Logo
2:33 pm - 9:40 am
STL
-
DUB
13h 07m
2 stops
$1,005British Airways
Thu, Apr 23 - Sun, Apr 26
American Airlines Logo
11:45 am - 7:30 pm
DUB
-
STL
13h 45m
1 stop
American Airlines Logo
12:27 pm - 9:45 am
STL
-
DUB
15h 18m
1 stop
$1,007American Airlines
Thu, Apr 23 - Sun, Apr 26

Aer Lingus flights from Dublin to St. Louis

Our best Aer Lingus deals on Dublin to St. Louis flight tickets
Aer Lingus
Apr 29
DUB9:40 amDublin
15h 50m
1 stop
STL7:30 pmLambert-St Louis
May 6
STL9:35 pmLambert-St Louis
12h 10m
1 stop
DUB3:45 pmDublin
$961
Aer Lingus
Apr 13
DUB7:30 amDublin
22h 16m
2 stops
STL11:46 pmLambert-St Louis
Apr 28
STL12:25 pmLambert-St Louis
16h 55m
2 stops
DUB11:20 amDublin
$1,043

Delta flights from Dublin to St. Louis

Our best Delta deals on Dublin to St. Louis flight tickets
Delta
Mar 27
DUB9:45 amDublin
18h 40m
1 stop
STL11:25 pmLambert-St Louis
Mar 30
STL5:59 pmLambert-St Louis
15h 26m
2 stops
DUB3:25 pmDublin
$1,070
Delta
May 9
DUB5:55 amDublin
17h 21m
2 stops
STL5:16 pmLambert-St Louis
May 24
STL11:25 amLambert-St Louis
16h 35m
2 stops
DUB10:00 amDublin
$1,095
Delta
Mar 27
DUB8:45 amDublin
20h 13m
2 stops
STL11:58 pmLambert-St Louis
Mar 30
STL5:59 pmLambert-St Louis
15h 26m
2 stops
DUB3:25 pmDublin
$1,163

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 March 17, 2026.
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

Cheapest round-trip

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 8/25

12:00 pm-7:30 pm

1 stop13h 30m

Lambert-St Louis

Sat 9/5

2:40 pm-7:45 am

2 stops35h 05m

$836

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 8/25

12:30 pm-7:30 pm

1 stop13h 00m

Lambert-St Louis

Sat 9/5

8:55 am-8:15 am

1 stop17h 20m

$890
Quickest round-trip

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 4/29

9:40 am-7:30 pm

1 stop15h 50m

Lambert-St Louis

Wed 5/6

9:35 pm-3:45 pm

1 stop12h 10m

$961

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 4/29

7:50 am-11:19 pm

2 stops21h 29m

Lambert-St Louis

Wed 5/6

2:53 pm-8:15 am

1 stop11h 22m

$968

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 5/9

9:30 am-10:19 pm

1 stop18h 49m

Lambert-St Louis

Sun 5/24

5:00 pm-11:50 am

1 stop12h 50m

$987

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 4/11

9:30 am-5:21 pm

1 stop13h 51m

Lambert-St Louis

Sat 4/18

9:34 am-9:45 am

1 stop18h 11m

$994

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 4/27

7:25 am-11:19 pm

2 stops21h 54m

Lambert-St Louis

Mon 5/4

5:21 pm-10:35 am

1 stop11h 14m

$999

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 4/23

11:45 am-6:04 pm

1 stop12h 19m

Lambert-St Louis

Sun 4/26

9:10 am-9:35 am

1 stop18h 25m

$1,001

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 4/23

8:20 pm-7:30 pm

1 stop29h 10m

Lambert-St Louis

Sun 4/26

2:33 pm-9:40 am

2 stops13h 07m

$1,005

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 4/23

11:45 am-7:30 pm

1 stop13h 45m

Lambert-St Louis

Sun 4/26

12:27 pm-9:45 am

1 stop15h 18m

$1,007

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

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

You could potentially save up to 35% on your flight if you consider stops on a Dublin to St. Louis flight.

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

Fastest flight time

13h 30m

Direct flights

None
The fastest flight from Dublin to St. Louis takes 13h 30m
There are no direct flights from Dublin to St. Louis. There are no popular flight routes from Dublin to St. Louis.
Search flight deals

  • 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 13h 30m.

  • 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
Florissant
Maryland Heights
O'Fallon
Collinsville
Alton
St. Peters
Wentzville
Fenton
Farmington
Clayton
Edwardsville
Festus
Eureka
Litchfield
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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