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Cheap flights from Dublin to St. Louis from $557

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 7/3. 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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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
10:00 am - 5:23 pm
DUB
-
STL
13h 23m
1 stop
Multiple Airlines Logo
10:51 am - 8:45 am
STL
-
DUB
15h 54m
1 stop
$933Multiple Airlines
Fri, Jun 12 - Tue, Jun 23
KLM Logo
10:00 am - 5:23 pm
DUB
-
STL
13h 23m
1 stop
KLM Logo
3:57 pm - 8:45 am
STL
-
DUB
10h 48m
1 stop
$953KLM
Fri, Jun 12 - Tue, Jun 30
Delta Logo
8:55 am - 11:23 pm
DUB
-
STL
20h 28m
2 stops
Delta Logo
1:59 pm - 10:00 am
STL
-
DUB
14h 01m
1 stop
$960Delta
Fri, Jun 12 - Tue, Jun 23
Delta Logo
5:55 am - 2:31 pm
DUB
-
STL
14h 36m
2 stops
Delta Logo
9:21 am - 10:00 am
STL
-
DUB
18h 39m
2 stops
$962Delta
Fri, Jun 5 - Sun, Jun 7
Delta Logo
10:00 am - 5:16 pm
DUB
-
STL
13h 16m
1 stop
Delta Logo
9:21 am - 10:00 am
STL
-
DUB
18h 39m
2 stops
$970Delta
Sun, May 31 - Sun, Jun 7
Delta Logo
11:00 am - 11:59 pm
DUB
-
STL
18h 59m
1 stop
Delta Logo
3:57 pm - 7:55 am
STL
-
DUB
9h 58m
1 stop
$973Delta
Fri, Jun 5 - Sun, Jun 7
Delta Logo
5:55 am - 5:23 pm
DUB
-
STL
17h 28m
2 stops
Delta Logo
7:20 am - 8:45 am
STL
-
DUB
19h 25m
1 stop
$1,048Delta
Tue, Jun 23 - Tue, Sep 15
Delta Logo
6:00 am - 5:16 pm
DUB
-
STL
17h 16m
2 stops
Delta Logo
1:39 pm - 10:00 am
STL
-
DUB
14h 21m
2 stops
$1,055Delta
Sun, May 31 - Sun, Jun 7
Multiple Airlines Logo
5:55 am - 3:16 pm
DUB
-
STL
15h 21m
2 stops
Multiple Airlines Logo
4:13 pm - 9:15 am
STL
-
DUB
11h 02m
1 stop
$1,056Multiple Airlines
Wed, Jun 24 - Tue, Sep 15
Delta Logo
10:00 am - 5:23 pm
DUB
-
STL
13h 23m
1 stop
Delta Logo
3:42 pm - 8:45 am
STL
-
DUB
11h 03m
1 stop
$1,059Delta
Tue, Jun 23 - Tue, Sep 15

Delta flights from Dublin to St. Louis

Our best Delta deals on Dublin to St. Louis flight tickets
Delta
May 14
DUB8:55 amDublin
20h 26m
2 stops
STL11:21 pmLambert-St Louis
May 27
STL1:32 pmLambert-St Louis
14h 28m
2 stops
DUB10:00 amDublin
$955
Delta
Jun 12
DUB8:55 amDublin
20h 28m
2 stops
STL11:23 pmLambert-St Louis
Jun 23
STL1:59 pmLambert-St Louis
14h 01m
1 stop
DUB10:00 amDublin
$960
Delta
Jun 5
DUB5:55 amDublin
14h 36m
2 stops
STL2:31 pmLambert-St Louis
Jun 7
STL9:21 amLambert-St Louis
18h 39m
2 stops
DUB10:00 amDublin
$962

Finnair flights from Dublin to St. Louis

Our best Finnair deals on Dublin to St. Louis flight tickets
Finnair
May 16
DUB9:30 amDublin
18h 49m
1 stop
STL10:19 pmLambert-St Louis
May 29
STL5:00 pmLambert-St Louis
12h 50m
1 stop
DUB11:50 amDublin
$965
Finnair
Jul 13
DUB9:30 amDublin
20h 46m
1 stop
STL12:16 amLambert-St Louis
Jul 22
STL5:58 pmLambert-St Louis
11h 52m
1 stop
DUB11:50 amDublin
$1,143

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 May 11, 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

Fri 6/12

10:00 am-5:23 pm

1 stop13h 23m

Lambert-St Louis

Tue 6/23

10:51 am-8:45 am

1 stop15h 54m

$933
Quickest round-trip

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 6/12

10:00 am-5:23 pm

1 stop13h 23m

Lambert-St Louis

Tue 6/30

3:57 pm-8:45 am

1 stop10h 48m

$953

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 6/12

8:55 am-11:23 pm

2 stops20h 28m

Lambert-St Louis

Tue 6/23

1:59 pm-10:00 am

1 stop14h 01m

$960

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 6/5

5:55 am-2:31 pm

2 stops14h 36m

Lambert-St Louis

Sun 6/7

9:21 am-10:00 am

2 stops18h 39m

$962

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 5/31

10:00 am-5:16 pm

1 stop13h 16m

Lambert-St Louis

Sun 6/7

9:21 am-10:00 am

2 stops18h 39m

$970

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 6/5

11:00 am-11:59 pm

1 stop18h 59m

Lambert-St Louis

Sun 6/7

3:57 pm-7:55 am

1 stop9h 58m

$973

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 6/23

5:55 am-5:23 pm

2 stops17h 28m

Lambert-St Louis

Tue 9/15

7:20 am-8:45 am

1 stop19h 25m

$1,048

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 5/31

6:00 am-5:16 pm

2 stops17h 16m

Lambert-St Louis

Sun 6/7

1:39 pm-10:00 am

2 stops14h 21m

$1,055

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 6/24

5:55 am-3:16 pm

2 stops15h 21m

Lambert-St Louis

Tue 9/15

4:13 pm-9:15 am

1 stop11h 02m

$1,056

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 6/23

10:00 am-5:23 pm

1 stop13h 23m

Lambert-St Louis

Tue 9/15

3:42 pm-8:45 am

1 stop11h 03m

$1,059

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?

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 February is another great option to travel to St. Louis, with average flight prices from Dublin averaging around $948.

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

You could potentially save up to 47% 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

14h 36m

Direct flights

None
The fastest flight from Dublin to St. Louis takes 14h 36m
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 14h 36m.

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