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Cheap flights from Dublin to St. Louis from $596

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 5/14. 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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:45 am - 11:19 pm
DUB
-
STL
21h 34m2 stops
Multiple Airlines Logo
4:50 pm - 11:00 am
STL
-
DUB
13h 10m1 stop
$833Multiple Airlines
Fri, Mar 6 - Sun, Mar 8
Lufthansa Logo
5:10 am - 1:55 pm
DUB
-
STL
14h 45m1 stop
Lufthansa Logo
5:41 pm - 9:55 am
STL
-
DUB
11h 14m1 stop
$913Lufthansa
Fri, Mar 6 - Sun, Mar 8
British Airways Logo
7:35 am - 6:34 pm
DUB
-
STL
16h 59m2 stops
British Airways Logo
1:35 pm - 11:15 am
STL
-
DUB
15h 40m2 stops
$924British Airways
Thu, Jan 29 - Thu, Feb 5
Lufthansa Logo
5:10 am - 1:55 pm
DUB
-
STL
14h 45m1 stop
Lufthansa Logo
1:15 pm - 8:10 am
STL
-
DUB
12h 55m1 stop
$926Lufthansa
Fri, Jan 30 - Fri, Feb 6
Lufthansa Logo
5:10 am - 1:55 pm
DUB
-
STL
14h 45m1 stop
Lufthansa Logo
1:15 pm - 8:10 am
STL
-
DUB
12h 55m1 stop
$927Lufthansa
Fri, Jan 23 - Thu, Feb 5
Multiple Airlines Logo
9:45 am - 10:23 am
DUB
-
STL
30h 38m2 stops
Multiple Airlines Logo
1:35 pm - 10:20 am
STL
-
DUB
14h 45m1 stop
$928Multiple Airlines
Thu, Jan 29 - Thu, Feb 5
Lufthansa Logo
10:40 am - 5:43 pm
DUB
-
STL
13h 03m1 stop
Lufthansa Logo
1:15 pm - 8:10 am
STL
-
DUB
12h 55m1 stop
$936Lufthansa
Thu, Jan 29 - Thu, Feb 5
Multiple Airlines Logo
5:10 am - 1:55 pm
DUB
-
STL
14h 45m1 stop
Multiple Airlines Logo
4:05 pm - 5:45 pm
STL
-
DUB
19h 40m2 stops
$943Multiple Airlines
Fri, Jan 23 - Thu, Feb 5
Multiple Airlines Logo
7:05 am - 11:33 pm
DUB
-
STL
22h 28m2 stops
Multiple Airlines Logo
1:35 pm - 10:20 am
STL
-
DUB
14h 45m1 stop
$949Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
American Airlines Logo
10:30 am - 11:28 pm
DUB
-
STL
18h 58m2 stops
American Airlines Logo
2:32 pm - 5:05 pm
STL
-
DUB
21h 33m2 stops
$952American Airlines
Thu, Mar 5 - Mon, Mar 9

Lufthansa flights from Dublin to St. Louis

Our best Lufthansa deals on Dublin to St. Louis flight tickets
Lufthansa
Jan 30
DUB5:10 amDublin
14h 45m
1 stop
STL1:55 pmLambert-St Louis
Feb 6
STL1:15 pmLambert-St Louis
12h 55m
1 stop
DUB8:10 amDublin
$926
Find similar
Lufthansa
Jan 23
DUB5:10 amDublin
24h 49m
2 stops
STL11:59 pmLambert-St Louis
Feb 5
STL6:40 pmLambert-St Louis
16h 30m
2 stops
DUB5:10 pmDublin
$956
Find similar

American Airlines flights from Dublin to St. Louis

Our best American Airlines deals on Dublin to St. Louis flight tickets
American Airlines
Mar 5
DUB10:30 amDublin
18h 58m
2 stops
STL11:28 pmLambert-St Louis
Mar 9
STL2:32 pmLambert-St Louis
21h 33m
2 stops
DUB5:05 pmDublin
$952
Find similar
American Airlines
Mar 5
DUB10:30 amDublin
29h 04m
2 stops
STL9:34 amLambert-St Louis
Mar 9
STL2:00 pmLambert-St Louis
13h 40m
1 stop
DUB8:40 amDublin
$969
Find similar
American Airlines
Jan 23
DUB1:40 pmDublin
31h 56m
2 stops
STL3:36 pmLambert-St Louis
Feb 5
STL9:33 amLambert-St Louis
17h 07m
1 stop
DUB8:40 amDublin
$970
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 December 18, 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

Fri 3/6

7:45 am-11:19 pm

2 stops21h 34m

Lambert-St Louis

Sun 3/8

4:50 pm-11:00 am

1 stop13h 10m

$833

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 3/6

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

Sun 3/8

5:41 pm-9:55 am

1 stop11h 14m

$913

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 1/29

7:35 am-6:34 pm

2 stops16h 59m

Lambert-St Louis

Thu 2/5

1:35 pm-11:15 am

2 stops15h 40m

$924

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 1/30

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

Fri 2/6

1:15 pm-8:10 am

1 stop12h 55m

$926

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 1/23

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

Thu 2/5

1:15 pm-8:10 am

1 stop12h 55m

$927

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 1/29

9:45 am-10:23 am

2 stops30h 38m

Lambert-St Louis

Thu 2/5

1:35 pm-10:20 am

1 stop14h 45m

$928

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 1/29

10:40 am-5:43 pm

1 stop13h 03m

Lambert-St Louis

Thu 2/5

1:15 pm-8:10 am

1 stop12h 55m

$936

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 1/23

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

Thu 2/5

4:05 pm-5:45 pm

2 stops19h 40m

$943

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 1/30

7:05 am-11:33 pm

2 stops22h 28m

Lambert-St Louis

Fri 2/6

1:35 pm-10:20 am

1 stop14h 45m

$949

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 3/5

10:30 am-11:28 pm

2 stops18h 58m

Lambert-St Louis

Mon 3/9

2:32 pm-5:05 pm

2 stops21h 33m

$952

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, February 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 $801. The month of August is another great option to travel to St. Louis, with average flight prices from Dublin averaging around $821.

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

You could potentially save up to 24% on your flight if you consider stops on a Dublin to St. Louis flight.

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

As of December 2025, prices for Dublin to St. Louis flights are approximately 27% 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

Fastest flight time

17h 14m

Direct flights

None
The fastest flight from Dublin to St. Louis takes 17h 14m
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 17h 14m.

  • 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
Fenton
Wentzville
St. Peters
Collinsville
Alton
Clayton
Festus
Glencoe
Farmington
Eureka
Edwardsville
Litchfield
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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