Cheap flights from St. Louis to Dublin from $351
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 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Find the cheapest flights from St. Louis to Dublin
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
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.Air Canada flights from St. Louis to Dublin
Our best Air Canada deals on St. Louis to Dublin flight tickets
British Airways flights from St. Louis to Dublin
Our best British Airways deals on St. Louis to Dublin flight tickets
momondo Fare Finder
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
St. LouisDublin
STL Lambert-St Louis - DUB Dublin
STLDUB
Lambert-St Louis
Mon 11/2
2:25 pm-7:45 am
1 stop11h 20m
Dublin
Wed 11/18
10:45 am-11:56 pm
2 stops19h 11m
St. LouisDublin
STL Lambert-St Louis - DUB Dublin
STLDUB
Lambert-St Louis
Wed 12/2
10:06 am-7:45 am
1 stop15h 39m
Dublin
Thu 12/10
9:55 am-9:38 pm
1 stop17h 43m
St. LouisDublin
STL Lambert-St Louis - DUB Dublin
STLDUB
Lambert-St Louis
Wed 11/18
2:31 pm-7:45 am
1 stop11h 14m
Dublin
Thu 11/26
9:55 am-10:53 pm
1 stop18h 58m
St. LouisDublin
STL Lambert-St Louis - DUB Dublin
STLDUB
Lambert-St Louis
Tue 12/1
2:17 pm-9:45 am
2 stops13h 28m
Dublin
Tue 12/8
10:45 am-9:38 pm
2 stops16h 53m
St. LouisDublin
STL Lambert-St Louis - DUB Dublin
STLDUB
Lambert-St Louis
Wed 2/17
3:40 pm-7:45 am
1 stop10h 05m
Dublin
Thu 2/25
9:55 am-6:01 pm
1 stop14h 06m
St. LouisDublin
STL Lambert-St Louis - DUB Dublin
STLDUB
Lambert-St Louis
Mon 2/15
7:04 pm-8:10 am
1 stop31h 06m
Dublin
Thu 2/18
9:00 am-3:57 pm
2 stops36h 57m
St. LouisDublin
STL Lambert-St Louis - DUB Dublin
STLDUB
Lambert-St Louis
Mon 2/15
5:00 am-8:10 am
1 stop21h 10m
Dublin
Thu 2/18
9:00 am-3:57 pm
2 stops36h 57m
St. LouisDublin
STL Lambert-St Louis - DUB Dublin
STLDUB
Lambert-St Louis
Wed 1/13
3:40 pm-4:30 pm
1 stop18h 50m
Dublin
Wed 1/20
5:10 am-1:45 pm
1 stop14h 35m
St. LouisDublin
STL Lambert-St Louis - DUB Dublin
STLDUB
Lambert-St Louis
Wed 1/20
3:40 pm-4:30 pm
1 stop18h 50m
Dublin
Wed 1/27
5:10 am-1:45 pm
1 stop14h 35m
St. LouisDublin
STL Lambert-St Louis - DUB Dublin
STLDUB
Lambert-St Louis
Tue 3/9
10:00 am-9:45 am
2 stops17h 45m
Dublin
Wed 3/17
5:45 am-12:36 am
2 stops23h 51m
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 $575 to $847.The lowest price recently found on this route was $546.
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 $364. 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 $498.
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 $746 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 $503 on momondo.
What is the cheapest airline that flies from Lambert-St Louis to Dublin?
United Airlines, Delta, and KLM are the most popular carriers operating from Lambert-St Louis to Dublin
What airlines fly to Dublin?
Aer Lingus, United Airlines and American Airlines are the top three most popular airlines that fly to Dublin from St. Louis according to our data. Aer Lingus is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 8 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between St. Louis and Dublin?
Toronto (YYZ) was the most common stop: 55% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from St. Louis to Dublin?
Flights via Toronto (YYZ) offer the lowest average round-trip price of $412.
Which layover airport has the shortest travel time from St. Louis to Dublin?
Flights connecting via Newark (EWR) have the shortest average one-way travel time: 11h 11m.
Which layover airport has the shortest connection time from St. Louis to Dublin?
Newark (EWR) has the shortest average layover time for this route: 1h 52m.
When to book flights from St. Louis to Dublin
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
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 10h 05m.
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?
As of October 2026, there are 8 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Dublin is Aer Lingus (35% of total bookings). The next most popular airlines are United Airlines (24%), American Airlines (16%), and Delta (8%).
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 | ||
|---|---|---|---|---|---|
| PriceFrom $325 | Free Cancellation | Rating 7.3 1,817 reviews | |||
| PriceFrom $429 | Free Cancellation | Rating 6.7 8,256 reviews | |||
| PriceFrom $430 | Free Cancellation | Rating 6.8 8,269 reviews | |||
| PriceFrom $474 | Free Cancellation | Rating 7.1 11,748 reviews | |||
| PriceFrom $482 | Free Cancellation | Rating 7.0 12,150 reviews | |||
| PriceFrom $484 | Free Cancellation | Rating 7.8 8,651 reviews | |||
| PriceFrom $489 | Free Cancellation | Rating 7.4 10,331 reviews | |||
| PriceFrom $538 | Free Cancellation | Rating 7.8 1,580 reviews |
Traveling to a place near Dublin?
Book flights to Dublin if you plan to visit one of these locationsWhy 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.