Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Dublin from $393

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 7/30. 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
0 bags

Discover deals from 900+ travel sites with momondo.

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.

Find the cheapest flights from St. Louis to Dublin

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Dublin that have been recently found on momondo from popular airlines, departing in the coming months.
 Logo
1:54 pm - 9:45 amSTL-DUB
13h 51m1 stop
 Logo
11:30 am - 8:16 pmDUB-STL
14h 46m1 stop
Wed, Oct 22 - Wed, Nov 5
American Airlines Logo
12:50 pm - 5:30 amSTL-DUB
10h 40m1 stop
American Airlines Logo
11:30 am - 9:12 pmDUB-STL
15h 42m2 stops
$496American Airlines
Find Deal
Wed, Oct 22 - Wed, Nov 5
United Airlines Logo
9:20 am - 9:45 amSTL-DUB
18h 25m1 stop
United Airlines Logo
9:00 am - 12:20 pmDUB-STL
33h 20m2 stops
$504United Airlines
Find Deal
Wed, Oct 22 - Wed, Nov 5
Iberia Logo
12:03 pm - 9:45 amSTL-DUB
15h 42m1 stop
Iberia Logo
2:05 pm - 10:29 pmDUB-STL
14h 24m1 stop
$510Iberia
Find Deal
Wed, Oct 22 - Wed, Nov 5
Air Canada Logo
5:18 pm - 6:10 amSTL-DUB
31h 52m2 stops
Air Canada Logo
9:00 am - 12:20 pmDUB-STL
33h 20m2 stops
$511Air Canada
Find Deal
Mon, Oct 27 - Wed, Nov 12
United Airlines Logo
8:25 am - 10:05 amSTL-DUB
20h 40m1 stop
United Airlines Logo
9:00 am - 3:26 pmDUB-STL
12h 26m1 stop
$517United Airlines
Find Deal
Mon, Oct 27 - Wed, Nov 12
Air Canada Logo
12:28 pm - 8:15 amSTL-DUB
13h 47m2 stops
Air Canada Logo
9:00 am - 3:21 pmDUB-STL
36h 21m2 stops
$525Air Canada
Find Deal
Wed, Oct 22 - Wed, Nov 5
Delta Logo
12:00 pm - 9:20 amSTL-DUB
16h 20m2 stops
Delta Logo
10:45 am - 8:35 pmDUB-STL
15h 50m2 stops
$576Delta
Find Deal
Sun, Oct 26 - Fri, Nov 14
Iberia Logo
12:07 pm - 9:45 amSTL-DUB
15h 38m1 stop
Iberia Logo
9:15 am - 7:08 pmDUB-STL
39h 53m2 stops
$612Iberia
Find Deal
Mon, Sep 8 - Mon, Sep 22
Delta Logo
3:30 pm - 7:45 amSTL-DUB
11h 15m1 stop
Delta Logo
9:45 am - 8:10 amDUB-STL
28h 25m1 stop
$628Delta
Find Deal
Mon, Oct 27 - Sun, Nov 9

United Airlines flights from St. Louis to Dublin

Our best United Airlines deals on St. Louis to Dublin flight tickets
United Airlines
Oct 22
STL9:20 amLambert-St Louis
18h 25m
1 stop
DUB9:45 amDublin
Nov 5
DUB9:00 amDublin
33h 20m
2 stops
STL12:20 pmLambert-St Louis
United Airlines
Oct 27
STL8:25 amLambert-St Louis
20h 40m
1 stop
DUB10:05 amDublin
Nov 12
DUB9:00 amDublin
12h 26m
1 stop
STL3:26 pmLambert-St Louis
United Airlines
Oct 27
STL1:27 pmLambert-St Louis
15h 38m
2 stops
DUB10:05 amDublin
Nov 14
DUB9:00 amDublin
12h 26m
1 stop
STL3:26 pmLambert-St Louis

British Airways flights from St. Louis to Dublin

Our best British Airways deals on St. Louis to Dublin flight tickets
British Airways
Oct 22
STL4:52 pmLambert-St Louis
15h 43m
2 stops
DUB2:35 pmDublin
Nov 5
DUB10:25 amDublin
15h 35m
2 stops
STL8:00 pmLambert-St Louis
British Airways
Aug 21
STL1:15 pmLambert-St Louis
22h 30m
2 stops
DUB5:45 pmDublin
Aug 25
DUB8:55 pmDublin
32h 56m
2 stops
STL11:51 pmLambert-St Louis
British Airways
Oct 26
STL7:23 amLambert-St Louis
21h 27m
2 stops
DUB9:50 amDublin
Nov 10
DUB8:30 pmDublin
29h 30m
2 stops
STL8:00 pmLambert-St Louis

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, 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 $659. If you’re not able to fly to Dublin in November, then February is your next best option. Flight prices from St. Louis to Dublin during February average around $723.

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 22 weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $914 when searching 22 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 $753 on momondo.

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

As of May 2025, prices for St. Louis to Dublin flights are approximately 31% 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

Best Price Found

$393

Fastest flight time

9h 35m

Direct flights

None

Airports in Dublin

1 airport
The best one-way flight to Dublin from St. Louis in the past 72 hours is $393. The best round-trip flight deal from St. Louis to Dublin found on momondo in the last 72 hours is $495.
The fastest flight from St. Louis to Dublin takes 9h 35m
There are no direct flights from St. Louis to Dublin. Popular non-direct route for this connection is Lambert-St Louis Airport - Dublin Airport.
There is 1 airport near Dublin: Dublin (DUB)

  • 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 35m.

  • 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 $451Free CancellationRating
6.6
6,845 reviews
Search British Airways flights
IberiaPriceFrom $491Free CancellationRating
7.0
2,701 reviews
Search Iberia flights
DeltaPriceFrom $498Free CancellationRating
8.0
7,934 reviews
Search Delta flights
United AirlinesPriceFrom $501Free CancellationRating
7.4
8,696 reviews
Search United Airlines flights
Air CanadaPriceFrom $505Free CancellationRating
7.0
9,252 reviews
Search Air Canada flights
KLMPriceFrom $532Free CancellationRating
7.8
1,334 reviews
Search KLM flights
LufthansaPriceFrom $560Free CancellationRating
6.7
7,045 reviews
Search Lufthansa flights
American AirlinesPriceFrom $569Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Aer LingusPriceFrom $740Free CancellationRating
7.0
1,076 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
Maynooth
Swords
Malahide
Leixlip
Naas
Mullingar
Castleknock
Kildare
Drogheda
Dundalk
Arklow
Cavan
Enniscorthy
Wicklow
Tullamore
Carlingford
Bray
Gorey

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 5/6
Tue 5/13

Find better results for your trip to Ireland