STL

€411 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 20/6. 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
€693
Typical prices: €1,000-€885
Scandinavian Airlines
Thu 21/5Thu 28/5
DUB - STL • 2 stops
Cheapest one-way flight
€411
Typical prices: €679-€747
Multiple Airlines
Sat 20/6
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

Thu, 21 May - Thu, 28 May
Scandinavian Airlines Logo
19:05 - 21:29
DUB
-
STL
32h 24m
2 stops
Scandinavian Airlines Logo
10:49 - 09:25
STL
-
DUB
40h 36m
2 stops
€693Scandinavian Airlines
Sat, 9 May - Sun, 24 May
Multiple Airlines Logo
20:00 - 20:09
DUB
-
STL
30h 09m
3 stops
Multiple Airlines Logo
07:05 - 18:30
STL
-
DUB
29h 25m
3 stops
€814Multiple 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
€815Finnair
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
€821Finnair
Thu, 21 May - Thu, 28 May
Multiple Airlines Logo
09:40 - 20:09
DUB
-
STL
16h 29m
2 stops
Multiple Airlines Logo
07:05 - 09:20
STL
-
DUB
20h 15m
1 stop
€844Multiple Airlines
Thu, 21 May - Thu, 28 May
Multiple Airlines Logo
10:40 - 20:09
DUB
-
STL
15h 29m
1 stop
Multiple Airlines Logo
07:05 - 09:20
STL
-
DUB
20h 15m
1 stop
€847Multiple Airlines
Sat, 9 May - Sun, 24 May
Multiple Airlines Logo
09:40 - 12:06
DUB
-
STL
32h 26m
3 stops
Multiple Airlines Logo
07:05 - 08:20
STL
-
DUB
19h 15m
2 stops
€864Multiple Airlines
Fri, 1 May - Sun, 17 May
Iberia Logo
09:30 - 22:59
DUB
-
STL
19h 29m
1 stop
Iberia Logo
14:33 - 11:50
STL
-
DUB
15h 17m
1 stop
€865Iberia
Sat, 9 May - Sun, 24 May
Iberia Logo
12:40 - 22:59
DUB
-
STL
16h 19m
1 stop
Iberia Logo
14:33 - 11:50
STL
-
DUB
15h 17m
1 stop
€868Iberia
Sat, 9 May - Sun, 24 May
American Airlines Logo
12:40 - 19:30
DUB
-
STL
12h 50m
1 stop
American Airlines Logo
19:20 - 09:45
STL
-
DUB
32h 25m
1 stop
€877American 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 25h 50m.

Good to know – Book Cheap St. Louis Plane Tickets

Low seasonAugust
Cheapest flight€411
Best time to beat the crowds (21% 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 11564 reviews
7.2Comfort
7.9Crew
6.4Food
7.5Boarding
6.8Entertainment
Airline reviews

Boarding was quick and efficient. We arrived at our destination early.

10.0 ExcellentRuth, Apr 2026
DFW - CMI
Read more American Airlines reviews

Boarding was quick and efficient. We arrived at our destination early.

I'm not sure American is capable of on-time arrivals and departures. When you land at ORD, you almost always get held on the tarmac because your gate is still occupied. I may have missed my connection, but that ended up up being significantly delayed as well. Once again, I finally got home well after midnight.

Same plane as RDU to LGA — internet not working. Pilot issue of some sort at end of prior flight - I was on same plane for my connection. Late/delayed —

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

Didn't make it back on American Airlines due to a maintenance issue. The communication and updates were terrible. I ended up returning on Aero Mexico which had a much nicer aircraft with a large entertainment screen with movies and shows AND they had a nice inflight meal. That was a treat after being delayed 26 hours! I think some additional flight miles, or something should be offered for that long of a delay ---it was not pleasant at all---very physical and emotional experience.

Message about flight cancelation was received late due to being in the air. No explanation, just canceled and booked on morning flight. We had to stay in the airport overnight because there was no transportation offered to get to the hotel that AA had available. Actual inflight was fine.

Buying ticket from kayak instant booking was a huge mistake, never to be repeated again! The Kayak didn’t book the tickets directly, it handed it off to a third party Underpricer, that booked a code shared American Airlines flight operated by Cathay Pacific!! When managing the booking American Airlines would recognize the itinerary but wouldn’t let me do anything stating, the flight is operated by Cathay Pacific so go to their website. Cathay Pacific would recognize the itinerary, neither by reservation ID or ticket number…asking to reach out to the third party Underpricer….calling Underpricer resulted in no help like seat requests, mileage number or upgrade request, 15hr layover accommodation voucher guidance…so net in net avoid booking through three layers of intermediaries

I didn't go from Reno to Phoenix I ended up going from Reno to Dallas to Tucson because my flight rebooked because my Amtrak was late I tried notifying you guys I also don't know what you ask me about my flight because you guys didn't book my flight

A chaotic and uncomfortable experience from start to finish. The boarding process was a disaster; despite group numbers, it was a free-for-all that the staff failed to manage (especially after group 5). Once on board, the "entertainment" was non-existent. There are no seatback screens, and the mobile app selection is incredibly thin. The hardware is severely dated. My seat had zero cushioning left—it felt like sitting on a hard board for the entire flight—and the legroom was cramped. To make matters worse, the bathroom was repulsive, with toilet paper, soiled paper towels and liquid/pee all over the floor. When I did interact with the crew, they provided the absolute bare minimum and made me feel like an inconvenience for asking for anything. Avoid this flight if you can.

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

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