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Cheap flights from St. Louis to Dublin from $302

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 5/9. 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

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Find the cheapest flights from St. Louis to Dublin

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:24 pm - 11:10 am
STL
-
DUB
11h 46m
1 stop
United Airlines Logo
9:50 am - 10:28 pm
DUB
-
STL
42h 38m
2 stops
$533United Airlines
Tue, Apr 14 - Tue, Apr 21
British Airways Logo
9:35 pm - 6:50 pm
STL
-
DUB
15h 15m
1 stop
British Airways Logo
8:25 pm - 7:30 pm
DUB
-
STL
29h 05m
1 stop
$540British Airways
Tue, Apr 21 - Tue, Apr 28
British Airways Logo
2:33 pm - 9:40 am
STL
-
DUB
13h 07m
2 stops
British Airways Logo
12:50 pm - 7:30 pm
DUB
-
STL
12h 40m
1 stop
$543British Airways
Tue, Apr 14 - Wed, Apr 22
United Airlines Logo
8:30 am - 7:20 am
STL
-
DUB
16h 50m
1 stop
United Airlines Logo
9:50 am - 3:25 pm
DUB
-
STL
11h 35m
1 stop
$546United Airlines
Tue, Apr 14 - Wed, Apr 22
British Airways Logo
2:33 pm - 9:40 am
STL
-
DUB
13h 07m
2 stops
British Airways Logo
12:50 pm - 7:30 pm
DUB
-
STL
12h 40m
1 stop
$550British Airways
Tue, Apr 14 - Wed, Apr 22
United Airlines Logo
10:00 am - 7:20 am
STL
-
DUB
15h 20m
2 stops
United Airlines Logo
9:50 am - 3:25 pm
DUB
-
STL
11h 35m
1 stop
$551United Airlines
Wed, Apr 8 - Thu, Apr 16
American Airlines Logo
1:29 pm - 6:30 am
STL
-
DUB
11h 01m
1 stop
American Airlines Logo
11:45 am - 7:30 pm
DUB
-
STL
13h 45m
1 stop
$552American Airlines
Wed, Apr 22 - Tue, May 5
Multiple Airlines Logo
1:00 pm - 8:15 am
STL
-
DUB
37h 15m
2 stops
Multiple Airlines Logo
5:55 am - 1:25 pm
DUB
-
STL
13h 30m
1 stop
$553Multiple Airlines
Sat, May 2 - Wed, May 13
Delta Logo
7:03 am - 7:45 am
STL
-
DUB
19h 42m
1 stop
Delta Logo
9:45 am - 5:05 pm
DUB
-
STL
12h 20m
1 stop
$554Delta
Tue, Mar 17 - Wed, Mar 25
Air Canada Logo
10:00 am - 8:15 am
STL
-
DUB
16h 15m
2 stops
Air Canada Logo
9:50 am - 9:13 pm
DUB
-
STL
17h 23m
2 stops
$556Air Canada
Tue, Apr 21 - Tue, Apr 28

Air Canada flights from St. Louis to Dublin

Our best Air Canada deals on St. Louis to Dublin flight tickets
Air Canada
Aug 16
STL9:16 amLambert-St Louis
16h 29m
2 stops
DUB7:45 amDublin
Aug 25
DUB9:50 amDublin
16h 12m
2 stops
STL8:02 pmLambert-St Louis
$500
Air Canada
Apr 21
STL10:00 amLambert-St Louis
16h 15m
2 stops
DUB8:15 amDublin
Apr 28
DUB9:50 amDublin
17h 23m
2 stops
STL9:13 pmLambert-St Louis
$556
Air Canada
Apr 13
STL4:05 pmLambert-St Louis
10h 10m
1 stop
DUB8:15 amDublin
Apr 20
DUB9:50 amDublin
11h 35m
1 stop
STL3:25 pmLambert-St Louis
$575

United Airlines flights from St. Louis to Dublin

Our best United Airlines deals on St. Louis to Dublin flight tickets
United Airlines
Aug 11
STL5:10 amLambert-St Louis
20h 35m
2 stops
DUB7:45 amDublin
Aug 19
DUB9:20 amDublin
32h 53m
2 stops
STL12:13 pmLambert-St Louis
$480
United Airlines
Aug 11
STL6:00 amLambert-St Louis
21h 45m
1 stop
DUB9:45 amDublin
Aug 19
DUB9:20 amDublin
32h 53m
2 stops
STL12:13 pmLambert-St Louis
$484
United Airlines
Aug 16
STL12:10 pmLambert-St Louis
13h 35m
1 stop
DUB7:45 amDublin
Aug 25
DUB9:50 amDublin
14h 42m
1 stop
STL6:32 pmLambert-St Louis
$491

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 March 4, 2026.
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

Tue 4/14

5:24 pm-11:10 am

1 stop11h 46m

Dublin

Tue 4/21

9:50 am-10:28 pm

2 stops42h 38m

$533

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 4/21

9:35 pm-6:50 pm

1 stop15h 15m

Dublin

Tue 4/28

8:25 pm-7:30 pm

1 stop29h 05m

$540

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 4/14

2:33 pm-9:40 am

2 stops13h 07m

Dublin

Wed 4/22

12:50 pm-7:30 pm

1 stop12h 40m

$543

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 4/14

8:30 am-7:20 am

1 stop16h 50m

Dublin

Wed 4/22

9:50 am-3:25 pm

1 stop11h 35m

$546

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 4/14

2:33 pm-9:40 am

2 stops13h 07m

Dublin

Wed 4/22

12:50 pm-7:30 pm

1 stop12h 40m

$550

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 4/8

10:00 am-7:20 am

2 stops15h 20m

Dublin

Thu 4/16

9:50 am-3:25 pm

1 stop11h 35m

$551

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 4/22

1:29 pm-6:30 am

1 stop11h 01m

Dublin

Tue 5/5

11:45 am-7:30 pm

1 stop13h 45m

$552

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 5/2

1:00 pm-8:15 am

2 stops37h 15m

Dublin

Wed 5/13

5:55 am-1:25 pm

1 stop13h 30m

$553

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 3/17

7:03 am-7:45 am

1 stop19h 42m

Dublin

Wed 3/25

9:45 am-5:05 pm

1 stop12h 20m

$554

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 4/21

10:00 am-8:15 am

2 stops16h 15m

Dublin

Tue 4/28

9:50 am-9:13 pm

2 stops17h 23m

$556

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 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, January 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 $523. If you’re not able to fly to Dublin in January, then November is your next best option. Flight prices from St. Louis to Dublin during November average around $557.

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 $740 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 $576 on momondo.

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

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

Fastest flight time

11h 01m

Direct flights

None
The fastest flight from St. Louis to Dublin takes 11h 01m
There are no direct flights from St. Louis to Dublin. There are no popular flight routes from St. Louis to Dublin.
Search flight deals

  • 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 11h 01m.

  • 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
KLMPriceFrom $412Free CancellationRating
7.7
1,461 reviews
Search KLM flights
British AirwaysPriceFrom $418Free CancellationRating
6.7
7,774 reviews
Search British Airways flights
LufthansaPriceFrom $430Free CancellationRating
6.8
7,821 reviews
Search Lufthansa flights
Air CanadaPriceFrom $462Free CancellationRating
7.1
10,770 reviews
Search Air Canada flights
IberiaPriceFrom $466Free CancellationRating
7.0
3,131 reviews
Search Iberia flights
United AirlinesPriceFrom $468Free CancellationRating
7.4
9,380 reviews
Search United Airlines flights
DeltaPriceFrom $483Free CancellationRating
7.9
8,242 reviews
Search Delta flights
American AirlinesPriceFrom $488Free CancellationRating
7.1
11,375 reviews
Search American Airlines flights
Aer LingusPriceFrom $662Free CancellationRating
7.2
1,464 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
Swords
Athlone
Dundalk
Mullingar
Kildare
Wicklow
Bray
Drogheda
Portmarnock
Arklow
Castleknock
Malahide
Leixlip
Carlingford
Cavan
Maynooth
Naas
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.

An easier way to manage your Dublin trip

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