Cheap Flights from Dublin to St Louis

Compare Dublin to St Louis flight deals

Find the cheapest month or even day of the year to fly to St Louis

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Flight deals from Dublin to St Louis

Looking for a cheap last-minute deal or the best return flight from Dublin to St Louis? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Dublin to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Dublin to St Louis flights are currently cheapest in June.

Dublin to St Louis: Alternative routes

Compare routes from Dublin to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Dublin to St Louis: Flight information

The things to know before you go.
Cheapest flight found$1,367
Cheapest month to flyJune

Finding cheap flights from Dublin to St Louis: Frequently asked questions

The best price we found for a return flight from Dublin to St Louis is $1,367. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Dublin to St Louis. But we found flights with one or more stops from $1,367.
As of February 2026, there are no flights flying from Dublin to St Louis.
The cheapest month to fly from Dublin to St Louis is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dublin Airport to St Louis Airport on Thursday, 4 June 2026.
No airlines currently offer direct flights between Dublin Airport and St Louis Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Finnair offers the cheapest flight tickets to St Louis.

Travelling from Dublin Airport (DUB) to Lambert-St. Louis International Airport (STL): what you need to know

  • The timezone in St Louis is UTC-5, which is five hours behind Dublin.

  • Your DUB to STL flight won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • During popular months like August, it's best to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead for international flights whenever you're flying during a high season in general.

  • Think about adding a stopover when booking your ticket from Dublin Airport to Lambert-St. Louis International Airport. Just uncheck 'Direct flights only' to break up your journey, or maybe even explore a new city along the way. Here's where you can stop between DUB and STL:

    • O'Hare International Airport

    • Logan International Airport

    • Pearson International Airport

How to find the cheapest flights from Dublin Airport (DUB) to Lambert-St. Louis International Airport (STL)

  • The cheapest price we've seen for a one-way Dublin Airport to Lambert-St. Louis International Airport flight is $832. A round-trip ticket right now is $1,367. Depending on the availability when you book, these fares may change.

  • It's usually smart to book ahead of time if you're hoping to get cheap tickets from DUB to STL. That's because flight prices are based on demand, which tends to increase closer to departure.

  • The 'Whole month' search tool shows you the cheapest flights from Dublin Airport to Lambert-St. Louis International Airport across every month. It's an easy way to find a bargain if your plans are flexible.

  • Spend less time searching for cheap flights from DUB to STL by setting up a Price Alert. We'll send you an email or push notification on the app when a lower fare pops up.

  • Choose your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Dublin Airport to Lambert-St. Louis International Airport.

Handy information about Dublin Airport (DUB)

  • Of all flights departing from Dublin Airport, 72.87% land on time at their destination.

  • Dublin Airport is about 21 kilometres from central Dublin. If you're ride-sharing, catching a cab or driving from the centre, it'll take 30 minutes or so to get there, depending on the traffic.

  • Expect a journey time of about 2 hours 10 minutes when using public transport.

  • Get your travels off to a relaxed start by staying near DUB. Whether you have an early flight from Dublin Airport to Lambert-St. Louis International Airport or want to avoid feeling rushed, these stays are perfect:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • You'll find STL at 10701 Lambert International Blvd..

  • From Lambert-St. Louis International Airport, St Louis is approximately 26 kilometres away. It takes around 20 minutes to reach the centre by car.

  • It takes around 35 minutes if you're travelling on public transport.

When to fly to Lambert-St. Louis International Airport (STL)

  • It's time to plan your trip dates for your flight from Dublin Airport to Lambert-St. Louis International Airport. July is the busiest month to visit St Louis. If you want a quieter vibe, go in April.

  • The warmest month in St Louis is July, with the temperature ranging between 17ºC and 33ºC. Lock in your flights from Dublin Airport to Lambert-St. Louis International Airport in this month if you like this kind of weather.

  • If you'd rather travel in cooler conditions, look for a cheap ticket from DUB to STL in January. Temperatures average between -8ºC and 7ºC then.

Explore more of United States

  • St Louis has its own special appeal, but there are so many other corners of United States just waiting to be explored. About 418 kilometres north-east of St Louis, a visit to Chicago will keep you busy. Start with attractions like Millennium Park, Art Institute of Chicago and LandShark Beer Garden at Navy Pier.

  • If you're interested in discovering another corner of United States, head for Indianapolis, about 370 kilometres east of St Louis. The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.