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Cheap flights from St. Louis to Dublin from $316

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 3/30. 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

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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.
Multiple Airlines Logo
12:10 pm - 7:45 am
STL
-
DUB
13h 35m
1 stop
Multiple Airlines Logo
6:00 am - 1:25 pm
DUB
-
STL
13h 25m
1 stop
$525Multiple Airlines
Sun, Aug 16 - Tue, Aug 25
Multiple Airlines Logo
12:10 pm - 8:15 am
STL
-
DUB
14h 05m
2 stops
Multiple Airlines Logo
6:00 am - 1:25 pm
DUB
-
STL
13h 25m
1 stop
$528Multiple Airlines
Sun, Aug 16 - Tue, Aug 25
United Airlines Logo
6:55 pm - 9:45 am
STL
-
DUB
32h 50m
1 stop
United Airlines Logo
9:50 am - 12:49 pm
DUB
-
STL
32h 59m
2 stops
$529United Airlines
Sat, Aug 15 - Tue, Aug 25
United Airlines Logo
5:32 pm - 7:45 am
STL
-
DUB
32h 13m
2 stops
United Airlines Logo
9:50 am - 12:49 pm
DUB
-
STL
32h 59m
2 stops
$532United Airlines
Sat, Aug 15 - Tue, Aug 25
Air Canada Logo
9:16 am - 7:45 am
STL
-
DUB
16h 29m
2 stops
Air Canada Logo
9:50 am - 6:32 pm
DUB
-
STL
14h 42m
1 stop
$541Air Canada
Sun, Aug 16 - Tue, Aug 25
United Airlines Logo
12:30 pm - 7:30 am
STL
-
DUB
13h 00m
1 stop
United Airlines Logo
9:20 am - 6:41 pm
DUB
-
STL
15h 21m
1 stop
$542United Airlines
Tue, Sep 1 - Tue, Sep 15
United Airlines Logo
5:10 am - 7:45 am
STL
-
DUB
20h 35m
2 stops
United Airlines Logo
9:20 am - 8:02 pm
DUB
-
STL
16h 42m
1 stop
$543United Airlines
Tue, Aug 11 - Wed, Aug 19
Air Canada Logo
5:00 am - 7:45 am
STL
-
DUB
20h 45m
2 stops
Air Canada Logo
9:20 am - 6:41 pm
DUB
-
STL
15h 21m
1 stop
$546Air Canada
Wed, Sep 2 - Tue, Sep 15
United Airlines Logo
1:18 pm - 9:45 am
STL
-
DUB
14h 27m
1 stop
United Airlines Logo
9:20 am - 2:02 pm
DUB
-
STL
10h 42m
1 stop
$547United Airlines
Tue, Aug 11 - Wed, Aug 19
United Airlines Logo
6:55 pm - 9:45 am
STL
-
DUB
32h 50m
1 stop
United Airlines Logo
9:50 am - 6:32 pm
DUB
-
STL
14h 42m
1 stop
$548United Airlines
Sat, Aug 15 - Tue, Aug 25

United Airlines flights from St. Louis to Dublin

Our best United Airlines deals on St. Louis to Dublin flight tickets
United Airlines
Aug 15
STL6:55 pmLambert-St Louis
32h 50m
1 stop
DUB9:45 amDublin
Aug 25
DUB9:50 amDublin
32h 59m
2 stops
STL12:49 pmLambert-St Louis
$529
United Airlines
Aug 15
STL5:32 pmLambert-St Louis
32h 13m
2 stops
DUB7:45 amDublin
Aug 25
DUB9:50 amDublin
32h 59m
2 stops
STL12:49 pmLambert-St Louis
$532
United Airlines
Sep 1
STL12:30 pmLambert-St Louis
13h 00m
1 stop
DUB7:30 amDublin
Sep 15
DUB9:20 amDublin
15h 21m
1 stop
STL6:41 pmLambert-St Louis
$542

British Airways flights from St. Louis to Dublin

Our best British Airways deals on St. Louis to Dublin flight tickets
British Airways
Aug 16
STL9:40 pmLambert-St Louis
12h 40m
1 stop
DUB4:20 pmDublin
Aug 25
DUB10:30 amDublin
15h 00m
1 stop
STL7:30 pmLambert-St Louis
$541
British Airways
Apr 21
STL9:35 pmLambert-St Louis
15h 15m
1 stop
DUB6:50 pmDublin
Apr 28
DUB7:30 pmDublin
30h 00m
1 stop
STL7:30 pmLambert-St Louis
$590
British Airways
Apr 8
STL5:21 pmLambert-St Louis
15h 14m
2 stops
DUB2:35 pmDublin
Apr 16
DUB8:35 amDublin
16h 58m
2 stops
STL7:33 pmLambert-St Louis
$609

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 10, 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

Cheapest round-trip

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 8/16

12:10 pm-7:45 am

1 stop13h 35m

Dublin

Tue 8/25

6:00 am-1:25 pm

1 stop13h 25m

$525

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 8/16

12:10 pm-8:15 am

2 stops14h 05m

Dublin

Tue 8/25

6:00 am-1:25 pm

1 stop13h 25m

$528

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 8/15

6:55 pm-9:45 am

1 stop32h 50m

Dublin

Tue 8/25

9:50 am-12:49 pm

2 stops32h 59m

$529

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 8/15

5:32 pm-7:45 am

2 stops32h 13m

Dublin

Tue 8/25

9:50 am-12:49 pm

2 stops32h 59m

$532

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 8/16

9:16 am-7:45 am

2 stops16h 29m

Dublin

Tue 8/25

9:50 am-6:32 pm

1 stop14h 42m

$541

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 9/1

12:30 pm-7:30 am

1 stop13h 00m

Dublin

Tue 9/15

9:20 am-6:41 pm

1 stop15h 21m

$542

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 8/11

5:10 am-7:45 am

2 stops20h 35m

Dublin

Wed 8/19

9:20 am-8:02 pm

1 stop16h 42m

$543

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 9/2

5:00 am-7:45 am

2 stops20h 45m

Dublin

Tue 9/15

9:20 am-6:41 pm

1 stop15h 21m

$546
Quickest round-trip

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 8/11

1:18 pm-9:45 am

1 stop14h 27m

Dublin

Wed 8/19

9:20 am-2:02 pm

1 stop10h 42m

$547

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 8/15

6:55 pm-9:45 am

1 stop32h 50m

Dublin

Tue 8/25

9:50 am-6:32 pm

1 stop14h 42m

$548

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 February is your next best option. Flight prices from St. Louis to Dublin during February average around $543.

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 $731 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 $571 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 00m

Direct flights

None
The fastest flight from St. Louis to Dublin takes 11h 00m
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 00m.

  • 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
7.8
1,468 reviews
Search KLM flights
British AirwaysPriceFrom $418Free CancellationRating
6.7
7,781 reviews
Search British Airways flights
LufthansaPriceFrom $430Free CancellationRating
6.8
7,840 reviews
Search Lufthansa flights
Air CanadaPriceFrom $462Free CancellationRating
7.1
10,800 reviews
Search Air Canada flights
IberiaPriceFrom $466Free CancellationRating
7.0
3,133 reviews
Search Iberia flights
United AirlinesPriceFrom $468Free CancellationRating
7.4
9,409 reviews
Search United Airlines flights
DeltaPriceFrom $483Free CancellationRating
7.9
8,276 reviews
Search Delta flights
American AirlinesPriceFrom $488Free CancellationRating
7.1
11,414 reviews
Search American Airlines flights
Aer LingusPriceFrom $714Free CancellationRating
7.2
1,473 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
Kildare
Mullingar
Wicklow
Bray
Drogheda
Portmarnock
Arklow
Castleknock
Leixlip
Carlingford
Cavan
Malahide
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.

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