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Cheap flights from Dublin to St. Louis from $433

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 4/15. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
12:30 pm - 9:02 pmDUB-STL
38h 32m2 stops
Scandinavian Airlines Logo
11:40 am - 11:45 amSTL-DUB
42h 05m2 stops
$651Scandinavian Airlines
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Thu, Dec 4 - Mon, Dec 8
Scandinavian Airlines Logo
12:30 pm - 9:02 pmDUB-STL
38h 32m2 stops
Scandinavian Airlines Logo
11:40 am - 11:45 amSTL-DUB
42h 05m2 stops
$652Scandinavian Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Aer Lingus Logo
10:00 am - 9:44 pmDUB-STL
17h 44m2 stops
Aer Lingus Logo
11:18 am - 11:15 amSTL-DUB
18h 57m2 stops
$833Aer Lingus
Find Deal
Sat, Mar 7 - Tue, Mar 17
Multiple Airlines Logo
6:05 pm - 11:57 pmDUB-STL
35h 52m2 stops
Multiple Airlines Logo
3:43 pm - 9:00 amSTL-DUB
11h 17m1 stop
$886Multiple Airlines
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Wed, Nov 19 - Sun, Nov 23
Multiple Airlines Logo
5:10 am - 1:55 pmDUB-STL
14h 45m1 stop
Multiple Airlines Logo
11:41 am - 7:30 amSTL-DUB
13h 49m1 stop
$889Multiple Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
Multiple Airlines Logo
5:10 am - 1:55 pmDUB-STL
14h 45m1 stop
Multiple Airlines Logo
11:50 am - 7:30 amSTL-DUB
13h 40m1 stop
$907Multiple Airlines
Find Deal
Fri, Nov 21 - Thu, Dec 4
Lufthansa Logo
5:10 am - 1:55 pmDUB-STL
14h 45m1 stop
Lufthansa Logo
11:50 am - 7:30 amSTL-DUB
13h 40m1 stop
$909Lufthansa
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Fri, Nov 21 - Thu, Dec 4
Lufthansa Logo
5:10 am - 9:40 pmDUB-STL
22h 30m2 stops
Lufthansa Logo
1:00 pm - 8:10 amSTL-DUB
13h 10m1 stop
$913Lufthansa
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Fri, Nov 21 - Thu, Dec 4
American Airlines Logo
10:55 am - 10:51 amDUB-STL
29h 56m2 stops
American Airlines Logo
3:20 pm - 5:00 pmSTL-DUB
19h 40m2 stops
$914American Airlines
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Tue, Jan 20 - Tue, Feb 3
American Airlines Logo
12:55 pm - 10:25 pmDUB-STL
15h 30m1 stop
American Airlines Logo
2:54 pm - 10:00 amSTL-DUB
13h 06m2 stops
$929American Airlines
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Sun, Dec 14 - Fri, Jan 16

Delta flights from Dublin to St. Louis

Our best Delta deals on Dublin to St. Louis flight tickets
Delta
Nov 21
DUB5:55 amDublin
20h 51m
2 stops
STL8:46 pmLambert-St Louis
Dec 4
STL4:32 pmLambert-St Louis
17h 13m
2 stops
DUB3:45 pmDublin
$921
Find similar
Delta
Nov 21
DUB5:55 amDublin
20h 51m
2 stops
STL8:46 pmLambert-St Louis
Dec 4
STL4:32 pmLambert-St Louis
17h 13m
2 stops
DUB3:45 pmDublin
$922
Find similar
Delta
Nov 21
DUB5:55 amDublin
20h 51m
2 stops
STL8:46 pmLambert-St Louis
Nov 29
STL6:00 amLambert-St Louis
20h 45m
2 stops
DUB8:45 amDublin
$924
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Air Canada flights from Dublin to St. Louis

Our best Air Canada deals on Dublin to St. Louis flight tickets
Air Canada
Mar 9
DUB8:00 amDublin
42h 50m
2 stops
STL9:50 pmLambert-St Louis
Mar 18
STL8:00 amLambert-St Louis
41h 10m
2 stops
DUB6:10 amDublin
$955
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Air Canada
Mar 6
DUB9:00 amDublin
12h 29m
1 stop
STL3:29 pmLambert-St Louis
Mar 19
STL8:00 amLambert-St Louis
17h 10m
2 stops
DUB6:10 amDublin
$968
Find similar
Air Canada
Mar 8
DUB8:00 amDublin
43h 49m
2 stops
STL10:49 pmLambert-St Louis
Mar 19
STL5:00 amLambert-St Louis
20h 10m
2 stops
DUB6:10 amDublin
$1,087
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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 November 3, 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

Thu 12/4

12:30 pm-9:02 pm

2 stops38h 32m

Lambert-St Louis

Mon 12/8

11:40 am-11:45 am

2 stops42h 05m

$651

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 12/4

12:30 pm-9:02 pm

2 stops38h 32m

Lambert-St Louis

Mon 12/8

11:40 am-11:45 am

2 stops42h 05m

$652

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 3/7

10:00 am-9:44 pm

2 stops17h 44m

Lambert-St Louis

Tue 3/17

11:18 am-11:15 am

2 stops18h 57m

$833

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 11/19

6:05 pm-11:57 pm

2 stops35h 52m

Lambert-St Louis

Sun 11/23

3:43 pm-9:00 am

1 stop11h 17m

$886

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 11/19

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

Sun 11/23

11:41 am-7:30 am

1 stop13h 49m

$889

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 11/21

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

Thu 12/4

11:50 am-7:30 am

1 stop13h 40m

$907

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 11/21

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

Thu 12/4

11:50 am-7:30 am

1 stop13h 40m

$909

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 11/21

5:10 am-9:40 pm

2 stops22h 30m

Lambert-St Louis

Thu 12/4

1:00 pm-8:10 am

1 stop13h 10m

$913

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 1/20

10:55 am-10:51 am

2 stops29h 56m

Lambert-St Louis

Tue 2/3

3:20 pm-5:00 pm

2 stops19h 40m

$914

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 12/14

12:55 pm-10:25 pm

1 stop15h 30m

Lambert-St Louis

Fri 1/16

2:54 pm-10:00 am

2 stops13h 06m

$929

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 $847.

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

You could potentially save up to 37% 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 November 2025, prices for Dublin to St. Louis flights are approximately 25% 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

Direct flights

None
There are no direct flights from Dublin to St. Louis. There are no popular flight routes from Dublin to St. Louis.
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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 24m.

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