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Cheap flights from St. Louis to Dublin from $327

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Dublin departing on 12/14. 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 St. Louis to Dublin

Cheap round-trip flights

Air Canada Logo
5:24 pm - 6:10 amSTL-DUB
31h 46m2 stops
Air Canada Logo
9:00 am - 9:40 pmDUB-STL
18h 40m2 stops
$470Air Canada
Find Deal
lun., oct. 27 - mié., nov. 12
Air Canada Logo
6:43 pm - 6:10 amSTL-DUB
30h 27m2 stops
Air Canada Logo
9:00 am - 3:29 pmDUB-STL
12h 29m1 stop
$473Air Canada
Find Deal
lun., oct. 27 - mié., nov. 12
United Airlines Logo
8:20 am - 7:30 amSTL-DUB
17h 10m2 stops
United Airlines Logo
9:00 am - 8:06 pmDUB-STL
41h 06m2 stops
$479United Airlines
Find Deal
mié., nov. 19 - mié., nov. 26
United Airlines Logo
3:14 pm - 8:10 amSTL-DUB
11h 56m1 stop
United Airlines Logo
9:00 am - 3:29 pmDUB-STL
12h 29m1 stop
$481United Airlines
Find Deal
lun., oct. 27 - mié., nov. 12
Logo
9:15 am - 8:15 amSTL-DUB
17h 00m1 stop
Logo
5:10 am - 1:55 pmDUB-STL
14h 45m1 stop
$482
Find Deal
mar., oct. 21 - mié., nov. 5
Delta Logo
6:45 am - 8:45 amSTL-DUB
21h 00m2 stops
Delta Logo
10:45 am - 8:39 pmDUB-STL
14h 54m2 stops
$507Delta
Find Deal
lun., mar. 9 - mié., mar. 25
Lufthansa Logo
4:50 pm - 11:00 amSTL-DUB
13h 10m1 stop
Lufthansa Logo
5:10 am - 2:55 pmDUB-STL
14h 45m1 stop
$514Lufthansa
Find Deal
dom., mar. 8 - mié., mar. 18
Delta Logo
10:00 am - 7:45 amSTL-DUB
16h 45m1 stop
Delta Logo
9:45 am - 11:10 pmDUB-STL
18h 25m1 stop
$517Delta
Find Deal
lun., mar. 9 - vie., mar. 27
Lufthansa Logo
4:50 pm - 11:00 amSTL-DUB
13h 10m1 stop
Lufthansa Logo
10:50 am - 9:40 pmDUB-STL
16h 50m2 stops
$536Lufthansa
Find Deal
mié., oct. 29 - mar., nov. 4
Iberia Logo
11:42 am - 7:10 amSTL-DUB
13h 28m1 stop
Iberia Logo
11:30 am - 8:21 pmDUB-STL
14h 51m1 stop
$551Iberia
Find Deal
jue., nov. 13 - jue., dic. 4

Scandinavian Airlines flights from St. Louis to Dublin

Our best Scandinavian Airlines deals on St. Louis to Dublin flight tickets
Scandinavian Airlines
Oct 27
STL3:59 pmLambert-St Louis
38h 46m
2 stops
DUB11:45 amDublin
Nov 8
DUB10:10 amDublin
43h 30m
2 stops
STL11:40 pmLambert-St Louis
$524
Find similar
Scandinavian Airlines
Oct 28
STL3:59 pmLambert-St Louis
38h 46m
2 stops
DUB11:45 amDublin
Nov 8
DUB10:10 amDublin
43h 30m
2 stops
STL11:40 pmLambert-St Louis
$554
Find similar

KLM flights from St. Louis to Dublin

Our best KLM deals on St. Louis to Dublin flight tickets
KLM
Oct 29
STL11:21 amLambert-St Louis
15h 24m
1 stop
DUB7:45 amDublin
Nov 4
DUB10:45 amDublin
11h 58m
1 stop
STL4:43 pmLambert-St Louis
$534
Find similar
KLM
Oct 30
STL12:14 pmLambert-St Louis
14h 31m
1 stop
DUB7:45 amDublin
Nov 6
DUB9:45 amDublin
11h 46m
1 stop
STL3:31 pmLambert-St Louis
$544
Find similar
KLM
Feb 25
STL11:51 amLambert-St Louis
13h 54m
1 stop
DUB7:45 amDublin
Mar 1
DUB9:45 amDublin
16h 54m
1 stop
STL8:39 pmLambert-St Louis
$552
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Dublin 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 11, 2025.
Use the filters below to find and compare flights from St. Louis to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

lun. 10/27

5:24 pm-6:10 am

2 stops31h 46m

Dublin

mié. 11/12

9:00 am-9:40 pm

2 stops18h 40m

$470

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

lun. 10/27

6:43 pm-6:10 am

2 stops30h 27m

Dublin

mié. 11/12

9:00 am-3:29 pm

1 stop12h 29m

$473

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mié. 11/19

8:20 am-7:30 am

2 stops17h 10m

Dublin

mié. 11/26

9:00 am-8:06 pm

2 stops41h 06m

$479

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

lun. 10/27

3:14 pm-8:10 am

1 stop11h 56m

Dublin

mié. 11/12

9:00 am-3:29 pm

1 stop12h 29m

$481

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mar. 10/21

9:15 am-8:15 am

1 stop17h 00m

Dublin

mié. 11/5

5:10 am-1:55 pm

1 stop14h 45m

$482

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

lun. 3/9

6:45 am-8:45 am

2 stops21h 00m

Dublin

mié. 3/25

10:45 am-8:39 pm

2 stops14h 54m

$507

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

dom. 3/8

4:50 pm-11:00 am

1 stop13h 10m

Dublin

mié. 3/18

5:10 am-2:55 pm

1 stop14h 45m

$514

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

lun. 3/9

10:00 am-7:45 am

1 stop16h 45m

Dublin

vie. 3/27

9:45 am-11:10 pm

1 stop18h 25m

$517

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mié. 10/29

4:50 pm-11:00 am

1 stop13h 10m

Dublin

mar. 11/4

10:50 am-9:40 pm

2 stops16h 50m

$536

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

jue. 11/13

11:42 am-7:10 am

1 stop13h 28m

Dublin

jue. 12/4

11:30 am-8:21 pm

1 stop14h 51m

$551

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Dublin from

How to get the cheapest flight ticket from St. Louis to Dublin

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 St. Louis and Dublin?

What is the cheapest month to fly to Dublin?

In general, February is the cheapest month to fly from St. Louis to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $698. If you’re not able to fly to Dublin in February, then November is your next best option. Flight prices from St. Louis to Dublin during November average around $703.

What is the cheapest day to depart on your flight to Dublin?

The cheapest day to depart from St. Louis to Dublin is on a Wednesday. Travelers who choose to depart for Dublin on a Wednesday will often find tickets for as low as $865. Flights from St. Louis to Dublin on a Saturday will generally be more expensive and average around $972. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Dublin?

In the evening is the cheapest time of day to fly from St. Louis to Dublin when you can find flight prices for as low as $556. Flying to Dublin in the evening is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $1,057.

How far in advance should I book a flight to Dublin?

You are more likely to see cheaper flights to Dublin from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $885 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from St. Louis for as low as $634 on momondo.

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

As of September 2025, prices for St. Louis to Dublin flights are approximately 34% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Dublin (STL to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Dublin

Direct flights

None
There are no direct flights from St. Louis to Dublin. There are no popular flight routes from St. Louis to Dublin.
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  • How far is Lambert-St Louis to Dublin by plane?

    The straight-line distance from Lambert-St Louis to Dublin is 3909.9 mi. A reasonable flight in good conditions will take 9h 46m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Dublin Airport?

    Prices for flights from Lambert-St Louis Airport to Dublin Airport were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Dublin Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Dublin Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The necessary travel and health documents for your Dublin Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Dublin?

Best airlines flying from St. Louis to Dublin

Compare and see reviews for airlines that fly from St. Louis to Dublin with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $383Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
KLMPriceFrom $412Free CancellationRating
7.8
1,385 reviews
Search KLM flights
Air CanadaPriceFrom $462Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
IberiaPriceFrom $482Free CancellationRating
7.0
2,929 reviews
Search Iberia flights
United AirlinesPriceFrom $491Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
DeltaPriceFrom $532Free CancellationRating
7.9
7,960 reviews
Search Delta flights
American AirlinesPriceFrom $572Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $627Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
Aer LingusPriceFrom $736Free CancellationRating
7.2
1,271 reviews
Search Aer Lingus flights

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Athlone
Swords
Dundalk
Malahide
Maynooth
Bray
Leixlip
Castleknock
Kildare
Naas
Mullingar
Arklow
Cavan
Drogheda
Enniscorthy
Wicklow
Thurles
Slane

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Dublin?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Dublin from St. Louis.

Can I find flights from St. Louis to Dublin with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Dublin flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Dublin?

momondo helps you find the best flight between St. Louis and Dublin by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Dublin right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Dublin now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Dublin and let you know when they change.

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