Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Dublin to St. Louis from $424

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 12/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Dublin to St. Louis

Cheap round-trip flights

Scandinavian Airlines Logo
12:30 pm - 10:04 pmDUB-STL
38h 34m2 stops
Scandinavian Airlines Logo
3:59 pm - 9:25 amSTL-DUB
35h 26m2 stops
$598Scandinavian Airlines
Find Deal
vie., oct. 31 - vie., nov. 7
Scandinavian Airlines Logo
12:30 pm - 11:41 pmDUB-STL
41h 11m2 stops
Scandinavian Airlines Logo
11:40 am - 11:45 amSTL-DUB
42h 05m2 stops
$614Scandinavian Airlines
Find Deal
jue., dic. 4 - lun., dic. 8
United Airlines Logo
12:05 pm - 11:42 pmDUB-STL
16h 37m2 stops
United Airlines Logo
11:49 am - 7:30 amSTL-DUB
13h 41m1 stop
$825United Airlines
Find Deal
vie., oct. 31 - vie., nov. 7
Multiple Airlines Logo
4:30 pm - 10:46 pmDUB-STL
36h 16m2 stops
Multiple Airlines Logo
1:55 pm - 7:45 amSTL-DUB
11h 50m1 stop
$827Multiple Airlines
Find Deal
jue., dic. 4 - mié., dic. 10
United Airlines Logo
9:30 am - 11:42 pmDUB-STL
19h 12m1 stop
United Airlines Logo
11:49 am - 7:30 amSTL-DUB
13h 41m1 stop
$829United Airlines
Find Deal
vie., oct. 31 - vie., nov. 7
Multiple Airlines Logo
6:30 am - 10:46 pmDUB-STL
22h 16m2 stops
Multiple Airlines Logo
4:32 pm - 8:45 amSTL-DUB
10h 13m1 stop
$837Multiple Airlines
Find Deal
vie., dic. 5 - mié., dic. 10
Lufthansa Logo
5:10 am - 1:55 pmDUB-STL
14h 45m1 stop
Lufthansa Logo
12:55 pm - 10:20 amSTL-DUB
15h 25m1 stop
$881Lufthansa
Find Deal
mié., nov. 26 - vie., dic. 5
KLM Logo
5:55 am - 5:09 pmDUB-STL
17h 14m2 stops
KLM Logo
1:55 pm - 7:45 amSTL-DUB
11h 50m1 stop
$887KLM
Find Deal
mié., nov. 26 - vie., dic. 5
Lufthansa Logo
5:00 am - 11:44 pmDUB-STL
24h 44m2 stops
Lufthansa Logo
11:49 am - 7:30 amSTL-DUB
13h 41m1 stop
$889Lufthansa
Find Deal
jue., nov. 13 - mar., nov. 18
KLM Logo
8:50 am - 8:46 pmDUB-STL
17h 56m2 stops
KLM Logo
4:32 pm - 12:40 pmSTL-DUB
14h 08m2 stops
$890KLM
Find Deal
mié., nov. 26 - vie., dic. 5

Lufthansa flights from Dublin to St. Louis

Our best Lufthansa deals on Dublin to St. Louis flight tickets
Lufthansa
Nov 26
DUB5:10 amDublin
14h 45m
1 stop
STL1:55 pmLambert-St Louis
Dec 5
STL12:55 pmLambert-St Louis
15h 25m
1 stop
DUB10:20 amDublin
$881
Find similar
Lufthansa
Nov 13
DUB5:00 amDublin
24h 44m
2 stops
STL11:44 pmLambert-St Louis
Nov 18
STL11:49 amLambert-St Louis
13h 41m
1 stop
DUB7:30 amDublin
$889
Find similar

British Airways flights from Dublin to St. Louis

Our best British Airways deals on Dublin to St. Louis flight tickets
British Airways
Dec 5
DUB8:35 pmDublin
30h 16m
2 stops
STL8:51 pmLambert-St Louis
Dec 14
STL4:49 pmLambert-St Louis
15h 31m
2 stops
DUB2:20 pmDublin
$895
Find similar
British Airways
Nov 24
DUB1:00 pmDublin
16h 56m
2 stops
STL11:56 pmLambert-St Louis
Dec 3
STL4:01 pmLambert-St Louis
18h 59m
2 stops
DUB5:00 pmDublin
$896
Find similar
British Airways
Nov 13
DUB8:50 amDublin
16h 37m
2 stops
STL7:27 pmLambert-St Louis
Nov 18
STL3:38 pmLambert-St Louis
14h 32m
2 stops
DUB12:10 pmDublin
$899
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 septiembre 17, 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

vie. 10/31

12:30 pm-10:04 pm

2 stops38h 34m

Lambert-St Louis

vie. 11/7

3:59 pm-9:25 am

2 stops35h 26m

$598

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

jue. 12/4

12:30 pm-11:41 pm

2 stops41h 11m

Lambert-St Louis

lun. 12/8

11:40 am-11:45 am

2 stops42h 05m

$614

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

vie. 10/31

12:05 pm-11:42 pm

2 stops16h 37m

Lambert-St Louis

vie. 11/7

11:49 am-7:30 am

1 stop13h 41m

$825

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

jue. 12/4

4:30 pm-10:46 pm

2 stops36h 16m

Lambert-St Louis

mié. 12/10

1:55 pm-7:45 am

1 stop11h 50m

$827

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

vie. 10/31

9:30 am-11:42 pm

1 stop19h 12m

Lambert-St Louis

vie. 11/7

11:49 am-7:30 am

1 stop13h 41m

$829

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

vie. 12/5

6:30 am-10:46 pm

2 stops22h 16m

Lambert-St Louis

mié. 12/10

4:32 pm-8:45 am

1 stop10h 13m

$837

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

mié. 11/26

5:10 am-1:55 pm

1 stop14h 45m

Lambert-St Louis

vie. 12/5

12:55 pm-10:20 am

1 stop15h 25m

$881

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

mié. 11/26

5:55 am-5:09 pm

2 stops17h 14m

Lambert-St Louis

vie. 12/5

1:55 pm-7:45 am

1 stop11h 50m

$887

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

jue. 11/13

5:00 am-11:44 pm

2 stops24h 44m

Lambert-St Louis

mar. 11/18

11:49 am-7:30 am

1 stop13h 41m

$889

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

mié. 11/26

8:50 am-8:46 pm

2 stops17h 56m

Lambert-St Louis

vie. 12/5

4:32 pm-12:40 pm

2 stops14h 08m

$890

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, 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 $835.

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

As of September 2025, prices for Dublin to St. Louis flights are approximately 24% 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.
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 12h 35m.

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

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
vie. 10/17
vie. 10/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States