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Cheap flights from St. Louis to Dublin from $314

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 3/11. 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.
British Airways Logo
11:05 am - 10:15 am
STL
-
DUB
17h 10m2 stops
British Airways Logo
6:40 am - 6:16 pm
DUB
-
STL
17h 36m2 stops
$412British Airways
Tue, Jan 13 - Tue, Jan 20
British Airways Logo
11:05 am - 9:35 am
STL
-
DUB
16h 30m2 stops
British Airways Logo
8:45 am - 8:13 pm
DUB
-
STL
17h 28m2 stops
$413British Airways
Tue, Feb 3 - Tue, Feb 10
American Airlines Logo
3:20 pm - 11:15 am
STL
-
DUB
13h 55m2 stops
American Airlines Logo
11:30 am - 10:44 pm
DUB
-
STL
17h 14m1 stop
$425American Airlines
Tue, Jan 13 - Tue, Jan 20
British Airways Logo
6:44 pm - 3:40 pm
STL
-
DUB
14h 56m2 stops
British Airways Logo
6:40 am - 6:16 pm
DUB
-
STL
17h 36m2 stops
$435British Airways
Mon, Jan 12 - Tue, Jan 20
American Airlines Logo
6:00 am - 8:40 am
STL
-
DUB
20h 40m1 stop
American Airlines Logo
4:45 pm - 9:03 am
DUB
-
STL
22h 18m1 stop
$436American Airlines
Mon, Jan 12 - Thu, Jan 29
British Airways Logo
6:44 pm - 3:40 pm
STL
-
DUB
14h 56m2 stops
British Airways Logo
8:45 am - 7:29 pm
DUB
-
STL
16h 44m2 stops
$437British Airways
Mon, Jan 12 - Thu, Jan 29
American Airlines Logo
3:20 pm - 10:20 am
STL
-
DUB
13h 00m1 stop
American Airlines Logo
11:30 am - 9:15 pm
DUB
-
STL
15h 45m2 stops
$439American Airlines
Tue, Feb 3 - Tue, Feb 10
British Airways Logo
11:59 am - 10:15 am
STL
-
DUB
17h 16m2 stops
British Airways Logo
7:45 pm - 5:13 pm
DUB
-
STL
26h 28m2 stops
$440British Airways
Wed, Mar 11 - Tue, Mar 24
American Airlines Logo
6:00 am - 8:40 am
STL
-
DUB
20h 40m1 stop
American Airlines Logo
11:30 am - 9:15 pm
DUB
-
STL
15h 45m2 stops
$441American Airlines
Mon, Jan 12 - Thu, Jan 29
American Airlines Logo
2:54 pm - 10:15 am
STL
-
DUB
13h 21m2 stops
American Airlines Logo
11:30 am - 11:04 pm
DUB
-
STL
17h 34m1 stop
$450American Airlines
Thu, Feb 5 - Thu, Feb 12

British Airways flights from St. Louis to Dublin

Our best British Airways deals on St. Louis to Dublin flight tickets
British Airways
Apr 28
STL10:00 pmLambert-St Louis
13h 05m
1 stop
DUB5:05 pmDublin
May 5
DUB10:30 amDublin
15h 00m
1 stop
STL7:30 pmLambert-St Louis
$401
Find similar
British Airways
Apr 28
STL2:29 pmLambert-St Louis
13h 46m
2 stops
DUB10:15 amDublin
May 5
DUB1:30 pmDublin
12h 00m
1 stop
STL7:30 pmLambert-St Louis
$406
Find similar
British Airways
Feb 2
STL3:37 pmLambert-St Louis
18h 03m
2 stops
DUB3:40 pmDublin
Feb 9
DUB7:45 pmDublin
26h 29m
2 stops
STL4:14 pmLambert-St Louis
$412
Find similar

American Airlines flights from St. Louis to Dublin

Our best American Airlines deals on St. Louis to Dublin flight tickets
American Airlines
Feb 4
STL2:54 pmLambert-St Louis
13h 21m
2 stops
DUB10:15 amDublin
Feb 11
DUB11:30 amDublin
17h 14m
1 stop
STL10:44 pmLambert-St Louis
$425
Find similar
American Airlines
Jan 12
STL6:00 amLambert-St Louis
20h 40m
1 stop
DUB8:40 amDublin
Jan 29
DUB4:45 pmDublin
22h 18m
1 stop
STL9:03 amLambert-St Louis
$436
Find similar
American Airlines
Mar 11
STL6:00 amLambert-St Louis
18h 05m
1 stop
DUB5:05 amDublin
Mar 24
DUB11:15 amDublin
15h 11m
2 stops
STL9:26 pmLambert-St Louis
$439
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 January 6, 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 1/13

11:05 am-10:15 am

2 stops17h 10m

Dublin

Tue 1/20

6:40 am-6:16 pm

2 stops17h 36m

$412

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 2/3

11:05 am-9:35 am

2 stops16h 30m

Dublin

Tue 2/10

8:45 am-8:13 pm

2 stops17h 28m

$413

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 1/13

3:20 pm-11:15 am

2 stops13h 55m

Dublin

Tue 1/20

11:30 am-10:44 pm

1 stop17h 14m

$425

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 1/12

6:44 pm-3:40 pm

2 stops14h 56m

Dublin

Tue 1/20

6:40 am-6:16 pm

2 stops17h 36m

$435

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 1/12

6:00 am-8:40 am

1 stop20h 40m

Dublin

Thu 1/29

4:45 pm-9:03 am

1 stop22h 18m

$436

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 1/12

6:44 pm-3:40 pm

2 stops14h 56m

Dublin

Thu 1/29

8:45 am-7:29 pm

2 stops16h 44m

$437

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 2/3

3:20 pm-10:20 am

1 stop13h 00m

Dublin

Tue 2/10

11:30 am-9:15 pm

2 stops15h 45m

$439

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 3/11

11:59 am-10:15 am

2 stops17h 16m

Dublin

Tue 3/24

7:45 pm-5:13 pm

2 stops26h 28m

$440

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 1/12

6:00 am-8:40 am

1 stop20h 40m

Dublin

Thu 1/29

11:30 am-9:15 pm

2 stops15h 45m

$441

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 2/5

2:54 pm-10:15 am

2 stops13h 21m

Dublin

Thu 2/12

11:30 am-11:04 pm

1 stop17h 34m

$450

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 cheapest month to fly to Dublin?

In general, November 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 $563. If you’re not able to fly to Dublin in November, then January is your next best option. Flight prices from St. Louis to Dublin during January average around $639.

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 $807 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 $614 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

13h 32m

Direct flights

None
The fastest flight from St. Louis to Dublin takes 13h 32m
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 13h 32m.

  • 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
1,434 reviews
Search KLM flights
Air CanadaPriceFrom $462Free CancellationRating
7.1
10,598 reviews
Search Air Canada flights
British AirwaysPriceFrom $463Free CancellationRating
6.7
7,657 reviews
Search British Airways flights
LufthansaPriceFrom $465Free CancellationRating
6.8
7,683 reviews
Search Lufthansa flights
United AirlinesPriceFrom $481Free CancellationRating
7.4
9,134 reviews
Search United Airlines flights
IberiaPriceFrom $482Free CancellationRating
7.0
3,074 reviews
Search Iberia flights
DeltaPriceFrom $483Free CancellationRating
7.9
8,017 reviews
Search Delta flights
American AirlinesPriceFrom $547Free CancellationRating
7.2
11,083 reviews
Search American Airlines flights
Aer LingusPriceFrom $760Free CancellationRating
7.2
1,425 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
Malahide
Mullingar
Bray
Kildare
Wicklow
Drogheda
Maynooth
Portmarnock
Arklow
Cavan
Castleknock
Naas
Leixlip
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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