Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Dublin from $225

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 9/22. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Dublin

Cheap round-trip flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
4:05 pm - 5:10 amSTL  Lambert-St Louis-DUB Dublin
31h 05m1 stop Toronto Pearson Intl
Aer Lingus Logo
1:00 pm - 3:26 pmDUB  Dublin-STL Lambert-St Louis
32h 26m1 stop Toronto Pearson Intl
$338Aer Lingus
Sat, Jan 9 - Tue, Jan 19
Aer Lingus Logo
4:05 pm - 5:10 amSTL  Lambert-St Louis-DUB Dublin
31h 05m1 stop Toronto Pearson Intl
Aer Lingus Logo
1:00 pm - 3:26 pmDUB  Dublin-STL Lambert-St Louis
32h 26m1 stop Toronto Pearson Intl
$338Aer Lingus
Sat, Jan 9 - Fri, Feb 12
United Airlines Logo
1:08 pm - 8:10 amSTL  Lambert-St Louis-DUB Dublin
13h 02m1 stop Chicago O'Hare Intl
United Airlines Logo
9:00 am - 12:06 pmDUB  Dublin-STL Lambert-St Louis
33h 06m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$679United Airlines
Tue, Dec 8 - Tue, Dec 15
Iberia Logo
9:33 am - 8:30 amSTL  Lambert-St Louis-DUB Dublin
16h 57m1 stop Philadelphia
Iberia Logo
11:30 am - 10:44 pmDUB  Dublin-STL Lambert-St Louis
17h 14m1 stop Philadelphia
$685Iberia
Wed, Feb 3 - Wed, Feb 10
Multiple Airlines Logo
7:04 pm - 7:10 amSTL  Lambert-St Louis-DUB Dublin
30h 06m2 stops Chicago O'Hare Intl Toronto Pearson Intl
Multiple Airlines Logo
9:10 am - 7:40 pmDUB  Dublin-STL Lambert-St Louis
16h 30m2 stops Frankfurt am Main Newark
$688Multiple Airlines
Sat, Jan 9 - Fri, Feb 12
United Airlines Logo
11:45 am - 7:30 amSTL  Lambert-St Louis-DUB Dublin
13h 45m1 stop Newark
United Airlines Logo
9:00 am - 3:26 pmDUB  Dublin-STL Lambert-St Louis
12h 26m1 stop Toronto Pearson Intl
$692United Airlines
Tue, Dec 8 - Tue, Dec 15
Lufthansa Logo
6:50 pm - 5:10 pmSTL  Lambert-St Louis-DUB Dublin
17h 20m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
5:10 am - 1:45 pmDUB  Dublin-STL Lambert-St Louis
14h 35m1 stop Frankfurt am Main
$700Lufthansa
Sun, Oct 25 - Fri, Nov 6
Lufthansa Logo
6:50 pm - 5:10 pmSTL  Lambert-St Louis-DUB Dublin
16h 20m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
9:10 am - 9:52 pmDUB  Dublin-STL Lambert-St Louis
18h 42m2 stops Frankfurt am Main Newark
$701Lufthansa
Sun, Nov 1 - Tue, Nov 10
Delta Logo
6:00 am - 7:45 amSTL  Lambert-St Louis-DUB Dublin
19h 45m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:45 am - 6:13 pmDUB  Dublin-STL Lambert-St Louis
18h 28m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$702Delta
Mon, Nov 9 - Wed, Nov 18
Delta Logo
12:20 pm - 9:00 amSTL  Lambert-St Louis-DUB Dublin
14h 40m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
5:45 am - 4:34 pmDUB  Dublin-STL Lambert-St Louis
16h 49m2 stops Amsterdam Schiphol Minneapolis St Paul
$707Delta
Tue, Dec 8 - Tue, Dec 15

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

Iberia flights from St. Louis to Dublin

Our best Iberia deals on St. Louis to Dublin flight tickets
Iberia
Feb 3
STL9:33 amLambert-St Louis
16h 57m
1 stop
DUB8:30 amDublin
Feb 10
DUB11:30 amDublin
17h 14m
1 stop
STL10:44 pmLambert-St Louis
$685
Iberia
Feb 3
STL12:01 pmLambert-St Louis
23h 49m
2 stops
DUB5:50 pmDublin
Feb 10
DUB9:50 amDublin
44h 08m
2 stops
STL11:58 pmLambert-St Louis
$703

Air Canada flights from St. Louis to Dublin

Our best Air Canada deals on St. Louis to Dublin flight tickets
Air Canada
Sep 21
STL12:10 pmLambert-St Louis
13h 35m
1 stop
DUB7:45 amDublin
Oct 6
DUB9:50 amDublin
14h 51m
2 stops
STL6:41 pmLambert-St Louis
$719
Air Canada
Aug 16
STL8:55 amLambert-St Louis
16h 50m
2 stops
DUB7:45 amDublin
Aug 25
DUB9:50 amDublin
16h 34m
2 stops
STL8:24 pmLambert-St Louis
$894
Air Canada
Aug 17
STL12:10 pmLambert-St Louis
13h 35m
1 stop
DUB7:45 amDublin
Aug 29
DUB9:50 amDublin
14h 52m
1 stop
STL6:42 pmLambert-St Louis
$928

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 August 12, 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 Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sat 1/9

4:05 pm-5:10 am

1 stop31h 05m

Dublin

Tue 1/19

1:00 pm-3:26 pm

1 stop32h 26m

$338

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sat 1/9

4:05 pm-5:10 am

1 stop31h 05m

Dublin

Fri 2/12

1:00 pm-3:26 pm

1 stop32h 26m

$338

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 12/8

1:08 pm-8:10 am

1 stop13h 02m

Dublin

Tue 12/15

9:00 am-12:06 pm

2 stops33h 06m

$679

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Wed 2/3

9:33 am-8:30 am

1 stop16h 57m

Dublin

Wed 2/10

11:30 am-10:44 pm

1 stop17h 14m

$685

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sat 1/9

7:04 pm-7:10 am

2 stops30h 06m

Dublin

Fri 2/12

9:10 am-7:40 pm

2 stops16h 30m

$688
Quickest round-trip

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 12/8

11:45 am-7:30 am

1 stop13h 45m

Dublin

Tue 12/15

9:00 am-3:26 pm

1 stop12h 26m

$692

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sun 10/25

6:50 pm-5:10 pm

2 stops17h 20m

Dublin

Fri 11/6

5:10 am-1:45 pm

1 stop14h 35m

$700

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sun 11/1

6:50 pm-5:10 pm

2 stops16h 20m

Dublin

Tue 11/10

9:10 am-9:52 pm

2 stops18h 42m

$701

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 11/9

6:00 am-7:45 am

1 stop19h 45m

Dublin

Wed 11/18

5:45 am-6:13 pm

2 stops18h 28m

$702

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 12/8

12:20 pm-9:00 am

2 stops14h 40m

Dublin

Tue 12/15

5:45 am-4:34 pm

2 stops16h 49m

$707

Flights are sorted by cheapest round-trip flights first.

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

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?

Prices are currently low for flights on this route.

Typical prices usually range from $428 to $827.
The lowest price recently found on this route was $338.

What is the cheapest month to fly to Dublin?

In general, September 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 $379. If you’re not able to fly to Dublin in September, then January is your next best option. Flight prices from St. Louis to Dublin during January average around $489.

How far in advance should I book a flight from St. Louis 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 $710 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 $581 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

14h 15m

Direct flights

None
The fastest flight from St. Louis to Dublin takes 14h 15m
There are no direct flights from St. Louis to Dublin. There are no popular flight routes from St. Louis to Dublin.
Search flight deals

Frequently asked questions about flying from St. Louis to Dublin

  • 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 14h 15m.

  • 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
Aer LingusPriceFrom $325Free CancellationRating
7.3
1,697 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $429Free CancellationRating
6.7
8,159 reviews
Search British Airways flights
LufthansaPriceFrom $430Free CancellationRating
6.8
8,181 reviews
Search Lufthansa flights
American AirlinesPriceFrom $482Free CancellationRating
7.1
11,908 reviews
Search American Airlines flights
DeltaPriceFrom $484Free CancellationRating
7.8
8,505 reviews
Search Delta flights
United AirlinesPriceFrom $487Free CancellationRating
7.4
10,109 reviews
Search United Airlines flights
Air CanadaPriceFrom $523Free CancellationRating
7.1
11,462 reviews
Search Air Canada flights
KLMPriceFrom $532Free CancellationRating
7.8
1,556 reviews
Search KLM flights

Traveling to a place near Dublin?

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

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

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
Fri 9/11
Fri 9/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland