STL

€335 Find Cheap Flights to St. Louis – Compare and Save

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 26/9. 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
€760
Typical prices: €1,094-€1,170
Multiple Airlines
Mon 24/8Sun 30/8
DUB - STL • 2 stops
Cheapest one-way flight
€335
Typical prices: €521-€945
Multiple Airlines
Sat 26/9
DUB - STL • 2 stops
Start a new search
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

Mon, 24 Aug - Sun, 30 Aug
Multiple Airlines Logo
09:40 - 14:02
DUB
-
STL
34h 22m
2 stops
Multiple Airlines Logo
12:10 - 07:45
STL
-
DUB
13h 35m
1 stop
€760Multiple Airlines
Mon, 24 Aug - Sun, 30 Aug
Multiple Airlines Logo
09:40 - 14:02
DUB
-
STL
34h 22m
2 stops
Multiple Airlines Logo
14:40 - 18:30
STL
-
DUB
21h 50m
2 stops
€795Multiple Airlines
Thu, 20 Aug - Sun, 30 Aug
Multiple Airlines Logo
09:40 - 14:02
DUB
-
STL
34h 22m
2 stops
Multiple Airlines Logo
14:40 - 08:15
STL
-
DUB
11h 35m
1 stop
€806Multiple Airlines
Thu, 20 Aug - Sun, 30 Aug
Multiple Airlines Logo
09:40 - 14:02
DUB
-
STL
34h 22m
2 stops
Multiple Airlines Logo
14:40 - 18:30
STL
-
DUB
21h 50m
2 stops
€836Multiple Airlines
Fri, 14 Aug - Fri, 21 Aug
Multiple Airlines Logo
12:15 - 20:24
DUB
-
STL
14h 09m
1 stop
Multiple Airlines Logo
12:10 - 07:45
STL
-
DUB
13h 35m
1 stop
€916Multiple Airlines
Mon, 24 Aug - Sun, 30 Aug
Multiple Airlines Logo
06:30 - 20:24
DUB
-
STL
19h 54m
2 stops
Multiple Airlines Logo
14:00 - 13:15
STL
-
DUB
17h 15m
3 stops
€954Multiple Airlines
Thu, 20 Aug - Sun, 30 Aug
Multiple Airlines Logo
13:15 - 20:24
DUB
-
STL
13h 09m
1 stop
Multiple Airlines Logo
14:40 - 11:30
STL
-
DUB
14h 50m
1 stop
€957Multiple Airlines
Mon, 20 Jul - Mon, 27 Jul
Finnair Logo
09:30 - 00:16
DUB
-
STL
20h 46m
1 stop
Finnair Logo
17:58 - 11:50
STL
-
DUB
11h 52m
1 stop
€976Finnair
Thu, 20 Aug - Sun, 30 Aug
Multiple Airlines Logo
18:50 - 20:24
DUB
-
STL
31h 34m
2 stops
Multiple Airlines Logo
14:00 - 13:15
STL
-
DUB
17h 15m
3 stops
€978Multiple Airlines
Sat, 25 Jul - Sat, 1 Aug
Iberia Logo
09:30 - 00:15
DUB
-
STL
20h 45m
1 stop
Iberia Logo
13:14 - 09:45
STL
-
DUB
14h 31m
1 stop
€988Iberia
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 15h 21m.

Good to know – Book Cheap St. Louis Plane Tickets

Low seasonSeptember
Cheapest flight€335
Best time to beat the crowds (13% 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.
7.4
United AirlinesOverall score based on 9901 reviews
7.3Comfort
8.1Crew
7.1Entertainment
7.7Boarding
6.6Food
Airline reviews

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

6.0 GoodBridgette, Jun 2026
EWR - MCI
Read more United Airlines reviews

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airport terminal was outdated, flight was on a small jet with no wifi

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

The flight was canceled the day of the flight. United says it was FAA issue, with some 35 flights canceled and more delayed.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

Slight delay but not bad. UA app worked well! Got regular updates of gate changes, etc. Don't have any complaints.

We boarded and buckled and then deplaned due to no pilot. Had to wait over 3 hours for a new pilot. Not weather related, just poor management.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Travelling to a place near St. Louis?

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

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

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