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Cheap flights from Dublin to St. Louis from $453

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 9/24. 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
11:30 am - 10:10 pmDUB  Dublin-STL Lambert-St Louis
16h 40m2 stops Reykjavik Keflavik Intl Baltimore/Washington
Multiple Airlines Logo
10:35 am - 10:15 amSTL  Lambert-St Louis-DUB Dublin
17h 40m2 stops Baltimore/Washington Reykjavik Keflavik Intl
$837Multiple Airlines
Tue, Nov 3 - Sat, Nov 14
Multiple Airlines Logo
5:25 pm - 4:34 pmDUB  Dublin-STL Lambert-St Louis
53h 09m2 stops London Gatwick Orlando
Multiple Airlines Logo
11:32 am - 5:15 amSTL  Lambert-St Louis-DUB Dublin
11h 43m1 stop Chicago O'Hare Intl
$984Multiple Airlines
Sat, Sep 26 - Tue, Nov 3
Multiple Airlines Logo
5:25 pm - 4:34 pmDUB  Dublin-STL Lambert-St Louis
53h 09m2 stops London Gatwick Orlando
Multiple Airlines Logo
11:32 am - 5:15 amSTL  Lambert-St Louis-DUB Dublin
11h 43m1 stop Chicago O'Hare Intl
$984Multiple Airlines
Sat, Sep 26 - Wed, Nov 4
Multiple Airlines Logo
5:25 pm - 4:34 pmDUB  Dublin-STL Lambert-St Louis
53h 09m2 stops London Gatwick Orlando
Multiple Airlines Logo
11:32 am - 5:15 amSTL  Lambert-St Louis-DUB Dublin
11h 43m1 stop Chicago O'Hare Intl
$984Multiple Airlines
Sat, Sep 26 - Mon, Nov 2
Lufthansa Logo
5:10 am - 9:52 pmDUB  Dublin-STL Lambert-St Louis
22h 42m2 stops Frankfurt am Main Newark
Lufthansa Logo
11:28 am - 7:30 amSTL  Lambert-St Louis-DUB Dublin
14h 02m1 stop Newark
$1,016Lufthansa
Tue, Nov 3 - Sat, Nov 14
Iberia Logo
1:00 pm - 8:19 pmDUB  Dublin-STL Lambert-St Louis
13h 19m1 stop Dallas/Fort Worth
Iberia Logo
7:24 am - 7:15 amSTL  Lambert-St Louis-DUB Dublin
17h 51m1 stop Dallas/Fort Worth
$1,023Iberia
Tue, Nov 3 - Sat, Nov 14
Multiple Airlines Logo
6:30 am - 5:54 pmDUB  Dublin-STL Lambert-St Louis
41h 24m2 stops London Stansted Orlando
Multiple Airlines Logo
11:32 am - 5:15 amSTL  Lambert-St Louis-DUB Dublin
11h 43m1 stop Chicago O'Hare Intl
$1,029Multiple Airlines
Wed, Sep 23 - Wed, Nov 4
Multiple Airlines Logo
6:30 am - 5:54 pmDUB  Dublin-STL Lambert-St Louis
41h 24m2 stops London Stansted Orlando
Multiple Airlines Logo
11:32 am - 5:15 amSTL  Lambert-St Louis-DUB Dublin
11h 43m1 stop Chicago O'Hare Intl
$1,029Multiple Airlines
Wed, Sep 23 - Mon, Nov 2
Multiple Airlines Logo
6:30 am - 5:54 pmDUB  Dublin-STL Lambert-St Louis
41h 24m2 stops London Stansted Orlando
Multiple Airlines Logo
11:32 am - 5:15 amSTL  Lambert-St Louis-DUB Dublin
11h 43m1 stop Chicago O'Hare Intl
$1,029Multiple Airlines
Wed, Sep 23 - Tue, Nov 3
Multiple Airlines Logo
7:05 am - 4:34 pmDUB  Dublin-STL Lambert-St Louis
39h 29m2 stops London Luton Orlando
Multiple Airlines Logo
11:32 am - 5:15 amSTL  Lambert-St Louis-DUB Dublin
11h 43m1 stop Chicago O'Hare Intl
$1,044Multiple Airlines
Sun, Sep 20 - Tue, Nov 3

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Lufthansa flights from Dublin to St. Louis

Our best Lufthansa deals on Dublin to St. Louis flight tickets
Lufthansa
Nov 3
DUB5:10 amDublin
22h 42m
2 stops
STL9:52 pmLambert-St Louis
Nov 14
STL11:28 amLambert-St Louis
14h 02m
1 stop
DUB7:30 amDublin
$1,016
Lufthansa
Feb 10
DUB5:10 amDublin
14h 35m
1 stop
STL1:45 pmLambert-St Louis
Feb 18
STL1:08 pmLambert-St Louis
13h 02m
1 stop
DUB8:10 amDublin
$1,056
Lufthansa
Feb 10
DUB5:10 amDublin
14h 35m
1 stop
STL1:45 pmLambert-St Louis
Feb 18
STL1:00 pmLambert-St Louis
15h 05m
2 stops
DUB10:05 amDublin
$1,060

United Airlines flights from Dublin to St. Louis

Our best United Airlines deals on Dublin to St. Louis flight tickets
United Airlines
Feb 8
DUB9:00 amDublin
12h 26m
1 stop
STL3:26 pmLambert-St Louis
Feb 15
STL8:33 amLambert-St Louis
17h 37m
1 stop
DUB8:10 amDublin
$1,071
United Airlines
Jan 21
DUB9:00 amDublin
12h 26m
1 stop
STL3:26 pmLambert-St Louis
Jan 24
STL11:45 amLambert-St Louis
13h 45m
1 stop
DUB7:30 amDublin
$1,072
United Airlines
Jan 21
DUB9:00 amDublin
12h 26m
1 stop
STL3:26 pmLambert-St Louis
Jan 24
STL7:33 amLambert-St Louis
18h 37m
1 stop
DUB8:10 amDublin
$1,074

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 August 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 Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Tue 11/3

11:30 am-10:10 pm

2 stops16h 40m

Lambert-St Louis

Sat 11/14

10:35 am-10:15 am

2 stops17h 40m

$837

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Sat 9/26

5:25 pm-4:34 pm

2 stops53h 09m

Lambert-St Louis

Tue 11/3

11:32 am-5:15 am

1 stop11h 43m

$984

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Sat 9/26

5:25 pm-4:34 pm

2 stops53h 09m

Lambert-St Louis

Wed 11/4

11:32 am-5:15 am

1 stop11h 43m

$984

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Sat 9/26

5:25 pm-4:34 pm

2 stops53h 09m

Lambert-St Louis

Mon 11/2

11:32 am-5:15 am

1 stop11h 43m

$984

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Tue 11/3

5:10 am-9:52 pm

2 stops22h 42m

Lambert-St Louis

Sat 11/14

11:28 am-7:30 am

1 stop14h 02m

$1,016
Quickest round-trip

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Tue 11/3

1:00 pm-8:19 pm

1 stop13h 19m

Lambert-St Louis

Sat 11/14

7:24 am-7:15 am

1 stop17h 51m

$1,023

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Wed 9/23

6:30 am-5:54 pm

2 stops41h 24m

Lambert-St Louis

Wed 11/4

11:32 am-5:15 am

1 stop11h 43m

$1,029

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Wed 9/23

6:30 am-5:54 pm

2 stops41h 24m

Lambert-St Louis

Mon 11/2

11:32 am-5:15 am

1 stop11h 43m

$1,029

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Wed 9/23

6:30 am-5:54 pm

2 stops41h 24m

Lambert-St Louis

Tue 11/3

11:32 am-5:15 am

1 stop11h 43m

$1,029

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Sun 9/20

7:05 am-4:34 pm

2 stops39h 29m

Lambert-St Louis

Tue 11/3

11:32 am-5:15 am

1 stop11h 43m

$1,044

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,224 to $1,335.
The lowest price recently found on this route was $837.

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 April is another great option to travel to St. Louis, with average flight prices from Dublin averaging around $979.

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

You could potentially save up to 36% 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

Best Price Found

$453

Fastest flight time

12h 26m

Direct flights

None
The best one-way flight to St. Louis from Dublin in the past 72 hours is $453. The best round-trip flight deal from Dublin to St. Louis found on momondo in the last 72 hours is $837.
The fastest flight from Dublin to St. Louis takes 12h 26m
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 12h 26m.

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