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Cheap flights from Dublin to St. Louis from $382

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 9/26. 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

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
9:40 am - 2:02 pm
DUB
-
STL
34h 22m
2 stops
Multiple Airlines Logo
12:10 pm - 7:45 am
STL
-
DUB
13h 35m
1 stop
$867Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Multiple Airlines Logo
9:40 am - 2:02 pm
DUB
-
STL
34h 22m
2 stops
Multiple Airlines Logo
2:40 pm - 6:30 pm
STL
-
DUB
21h 50m
2 stops
$907Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Multiple Airlines Logo
9:40 am - 8:42 pm
DUB
-
STL
17h 02m
2 stops
Multiple Airlines Logo
4:09 pm - 9:20 am
STL
-
DUB
35h 11m
1 stop
$928Multiple Airlines
Sat, Aug 8 - Sat, Aug 15
American Airlines Logo
12:40 pm - 8:26 pm
DUB
-
STL
13h 46m
1 stop
American Airlines Logo
12:41 pm - 9:35 am
STL
-
DUB
14h 54m
1 stop
$973American Airlines
Wed, Sep 2 - Sun, Sep 6
Multiple Airlines Logo
9:40 am - 8:42 pm
DUB
-
STL
17h 02m
2 stops
Multiple Airlines Logo
12:59 pm - 9:55 am
STL
-
DUB
14h 56m
2 stops
$1,014Multiple Airlines
Sat, Aug 8 - Sat, Aug 15
Finnair Logo
9:30 am - 12:14 am
DUB
-
STL
20h 44m
1 stop
Finnair Logo
4:54 pm - 11:50 am
STL
-
DUB
12h 56m
1 stop
$1,045Finnair
Mon, Aug 10 - Tue, Aug 25
Finnair Logo
9:30 am - 12:16 am
DUB
-
STL
20h 46m
1 stop
Finnair Logo
5:58 pm - 11:50 am
STL
-
DUB
11h 52m
1 stop
$1,050Finnair
Thu, Jul 16 - Wed, Jul 29
Multiple Airlines Logo
6:30 am - 8:24 pm
DUB
-
STL
19h 54m
2 stops
Multiple Airlines Logo
2:00 pm - 1:15 pm
STL
-
DUB
17h 15m
3 stops
$1,088Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Multiple Airlines Logo
5:35 pm - 1:25 pm
DUB
-
STL
25h 50m
1 stop
Multiple Airlines Logo
12:27 pm - 7:30 am
STL
-
DUB
13h 03m
1 stop
$1,092Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Air Canada Logo
9:20 am - 2:02 pm
DUB
-
STL
10h 42m
1 stop
Air Canada Logo
12:59 pm - 7:45 am
STL
-
DUB
12h 46m
2 stops
$1,103Air Canada
Wed, Sep 2 - Sun, Sep 6

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Iberia flights from Dublin to St. Louis

Our best Iberia deals on Dublin to St. Louis flight tickets
Iberia
Aug 15
DUB12:40 pmDublin
17h 02m
1 stop
STL11:42 pmLambert-St Louis
Sep 4
STL8:07 pmLambert-St Louis
9h 43m
1 stop
DUB11:50 amDublin
$1,121
Iberia
Jul 4
DUB9:30 amDublin
20h 45m
1 stop
STL12:15 amLambert-St Louis
Jul 11
STL5:19 pmLambert-St Louis
12h 31m
1 stop
DUB11:50 amDublin
$1,127
Iberia
Jul 4
DUB12:40 pmDublin
13h 41m
1 stop
STL8:21 pmLambert-St Louis
Jul 11
STL8:06 pmLambert-St Louis
54h 59m
2 stops
DUB9:05 amDublin
$1,153

United Airlines flights from Dublin to St. Louis

Our best United Airlines deals on Dublin to St. Louis flight tickets
United Airlines
Aug 15
DUB9:20 amDublin
10h 44m
1 stop
STL2:04 pmLambert-St Louis
Sep 4
STL4:50 pmLambert-St Louis
12h 20m
1 stop
DUB11:10 amDublin
$1,215
United Airlines
Jul 25
DUB9:50 amDublin
14h 23m
2 stops
STL6:13 pmLambert-St Louis
Aug 1
STL11:25 amLambert-St Louis
14h 05m
2 stops
DUB7:30 amDublin
$1,218
United Airlines
Aug 15
DUB9:20 amDublin
15h 56m
2 stops
STL7:16 pmLambert-St Louis
Sep 4
STL4:50 pmLambert-St Louis
12h 20m
1 stop
DUB11:10 amDublin
$1,221

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 June 29, 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

Mon 8/24

9:40 am-2:02 pm

2 stops34h 22m

Lambert-St Louis

Sun 8/30

12:10 pm-7:45 am

1 stop13h 35m

$867

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 8/24

9:40 am-2:02 pm

2 stops34h 22m

Lambert-St Louis

Sun 8/30

2:40 pm-6:30 pm

2 stops21h 50m

$907

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 8/8

9:40 am-8:42 pm

2 stops17h 02m

Lambert-St Louis

Sat 8/15

4:09 pm-9:20 am

1 stop35h 11m

$928

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 9/2

12:40 pm-8:26 pm

1 stop13h 46m

Lambert-St Louis

Sun 9/6

12:41 pm-9:35 am

1 stop14h 54m

$973

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 8/8

9:40 am-8:42 pm

2 stops17h 02m

Lambert-St Louis

Sat 8/15

12:59 pm-9:55 am

2 stops14h 56m

$1,014

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 8/10

9:30 am-12:14 am

1 stop20h 44m

Lambert-St Louis

Tue 8/25

4:54 pm-11:50 am

1 stop12h 56m

$1,045

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 7/16

9:30 am-12:16 am

1 stop20h 46m

Lambert-St Louis

Wed 7/29

5:58 pm-11:50 am

1 stop11h 52m

$1,050

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 8/24

6:30 am-8:24 pm

2 stops19h 54m

Lambert-St Louis

Sun 8/30

2:00 pm-1:15 pm

3 stops17h 15m

$1,088

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 8/24

5:35 pm-1:25 pm

1 stop25h 50m

Lambert-St Louis

Sun 8/30

12:27 pm-7:30 am

1 stop13h 03m

$1,092
Quickest round-trip

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 9/2

9:20 am-2:02 pm

1 stop10h 42m

Lambert-St Louis

Sun 9/6

12:59 pm-7:45 am

2 stops12h 46m

$1,103

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, November 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 $0. The month of September is another great option to travel to St. Louis, with average flight prices from Dublin averaging around $973.

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

You could potentially save up to 48% 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

10h 44m

Direct flights

None
The fastest flight from Dublin to St. Louis takes 10h 44m
There are no direct flights from Dublin to St. Louis. There are no popular flight routes from Dublin to St. Louis.
Search flight deals

Frequently asked questions about flying from Dublin to St. Louis

  • 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 10h 44m.

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

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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