STL

€337 Find Cheap Flights to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 30/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
€729
Typical prices: €685-€793
Aer Lingus, Air Canada
Tue 25/8Sat 5/9
DUB - STL • 1 stop
Cheapest one-way flight
€337
Typical prices: €564-€665
Multiple Airlines
Thu 30/4
DUB - STL • 3 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to St. Louis

Tue, 25 Aug - Sat, 5 Sep
Multiple Airlines Logo
12:00 - 19:30
DUB
-
STL
13h 30m
1 stop
Multiple Airlines Logo
14:40 - 07:45
STL
-
DUB
35h 05m
2 stops
€729Multiple Airlines
Tue, 25 Aug - Sat, 5 Sep
Multiple Airlines Logo
12:30 - 19:30
DUB
-
STL
13h 00m
1 stop
Multiple Airlines Logo
08:55 - 08:15
STL
-
DUB
17h 20m
1 stop
€776Multiple Airlines
Wed, 29 Apr - Wed, 6 May
Aer Lingus Logo
09:40 - 19:30
DUB
-
STL
15h 50m
1 stop
Aer Lingus Logo
21:35 - 15:45
STL
-
DUB
12h 10m
1 stop
€838Aer Lingus
Wed, 29 Apr - Wed, 6 May
Multiple Airlines Logo
07:50 - 23:19
DUB
-
STL
21h 29m
2 stops
Multiple Airlines Logo
14:53 - 08:15
STL
-
DUB
11h 22m
1 stop
€844Multiple Airlines
Sat, 9 May - Sun, 24 May
Finnair Logo
09:30 - 22:19
DUB
-
STL
18h 49m
1 stop
Finnair Logo
17:00 - 11:50
STL
-
DUB
12h 50m
1 stop
€860Finnair
Sat, 11 Apr - Sat, 18 Apr
Multiple Airlines Logo
09:30 - 17:21
DUB
-
STL
13h 51m
1 stop
Multiple Airlines Logo
09:34 - 09:45
STL
-
DUB
18h 11m
1 stop
€866Multiple Airlines
Mon, 27 Apr - Mon, 4 May
Multiple Airlines Logo
07:25 - 23:19
DUB
-
STL
21h 54m
2 stops
Multiple Airlines Logo
17:21 - 10:35
STL
-
DUB
11h 14m
1 stop
€871Multiple Airlines
Thu, 23 Apr - Sun, 26 Apr
American Airlines Logo
12:40 - 19:29
DUB
-
STL
12h 49m
1 stop
American Airlines Logo
13:29 - 06:30
STL
-
DUB
11h 01m
1 stop
€872American Airlines
Thu, 23 Apr - Sun, 26 Apr
British Airways Logo
20:20 - 19:30
DUB
-
STL
29h 10m
1 stop
British Airways Logo
14:33 - 09:40
STL
-
DUB
13h 07m
2 stops
€876British Airways
Thu, 23 Apr - Sun, 26 Apr
American Airlines Logo
11:45 - 19:30
DUB
-
STL
13h 45m
1 stop
American Airlines Logo
12:27 - 09:45
STL
-
DUB
15h 18m
1 stop
€878American Airlines
Booking Insights

KAYAK's insights & trends for flights to St. Louis

Get data-powered insights and trends into flights to St. Louis to help you find the cheapest flights, the best time to fly and much more.

How long is the flight to St. Louis?

The duration of your flight to St. Louis depends on your departure and arrival airports. Obviously, any flights that include a stopover will also be longer. The most popular route to St. Louis on KAYAK is from Dublin, which takes 13h 30m.

Find deals

Good to know – Book Cheap St. Louis Plane Tickets

Low seasonAugust
Cheapest flight€337
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly and prices are also 13% lower on average.
Flight from Dublin to St. Louis

When to book flights to St. Louis

Are your dates flexible? Find out the best times to travel to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to St. Louis based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    There are 20 km between St. Louis city centre and Lambert-St Louis Airport.

  • What is the name of St. Louis’s airport?

    St. Louis is served by Lambert-St Louis Airport, also commonly referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl. The airport code is STL.

  • How does KAYAK find such low prices on flights to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Reviews of the top airline flying to St. Louis

 
See real verified KAYAK customer reviews for airlines flying to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to St. Louis. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11468 reviews
7.5Boarding
6.4Food
7.2Comfort
6.9Entertainment
7.9Crew
Airline reviews

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

4.0 OkaySean, Mar 2026
PSP - DFW
Read more American Airlines reviews

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

Movie selections were very limited. Meals were not f So good.

Older airplane with worn out seats. No entertainment system at all. Connecting to Wi-Fi was problematic and hit and miss.

AA is flying sub par aging 787's to Tokyo. I fly other 787's long haul and these are at the bottom. Seats don't work well, tray tables don't work well and were dirty. The flight was great, the plane was not.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Wentzville

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

St. Louis (STL)