STL

€289 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 26/5. 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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
€798
Typical prices: €848-€654
Aer Lingus
Tue 1/9Wed 9/9
DUB - STL • 1 stop
Cheapest one-way flight
€289
Typical prices: €533-€703
Multiple Airlines
Tue 26/5
DUB - STL • 3 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

Tue, 1 Sep - Wed, 9 Sep
Multiple Airlines Logo
06:30 - 19:30
DUB
-
STL
19h 00m
1 stop
Multiple Airlines Logo
08:55 - 16:05
STL
-
DUB
25h 10m
2 stops
€798Multiple 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
€818Finnair
Tue, 1 Sep - Wed, 9 Sep
Aer Lingus Logo
12:30 - 19:30
DUB
-
STL
13h 00m
1 stop
Aer Lingus Logo
21:35 - 15:45
STL
-
DUB
12h 10m
1 stop
€830Aer Lingus
Tue, 1 Sep - Wed, 9 Sep
Multiple Airlines Logo
11:10 - 19:30
DUB
-
STL
14h 20m
1 stop
Multiple Airlines Logo
08:55 - 21:20
STL
-
DUB
30h 25m
3 stops
€834Multiple Airlines
Thu, 30 Apr - Wed, 13 May
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
17:21 - 11:50
STL
-
DUB
12h 29m
1 stop
€838Finnair
Tue, 28 Apr - Sat, 9 May
Multiple Airlines Logo
19:25 - 23:19
DUB
-
STL
33h 54m
2 stops
Multiple Airlines Logo
16:15 - 09:15
STL
-
DUB
11h 00m
1 stop
€850Multiple 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
€859Finnair
Fri, 29 May - Fri, 5 Jun
Multiple Airlines Logo
13:50 - 23:57
DUB
-
STL
16h 07m
1 stop
Multiple Airlines Logo
11:24 - 10:35
STL
-
DUB
17h 11m
2 stops
€860Multiple Airlines
Wed, 27 May - Wed, 3 Jun
Finnair Logo
09:30 - 23:54
DUB
-
STL
20h 24m
1 stop
Finnair Logo
17:00 - 11:50
STL
-
DUB
12h 50m
1 stop
€864Finnair
Mon, 27 Apr - Sat, 9 May
British Airways Logo
12:40 - 19:29
DUB
-
STL
12h 49m
1 stop
British Airways Logo
07:00 - 09:35
STL
-
DUB
20h 35m
1 stop
€869British Airways
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 16h 51m.

Good to know – Book Cheap St. Louis Plane Tickets

Low seasonAugust
Cheapest flight€289
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 11580 reviews
6.9Entertainment
7.2Comfort
7.5Boarding
6.4Food
7.9Crew
Airline reviews

Flight was fine, but not having WiFi was a major negative

6.0 GoodJosephine, Apr 2026
CHS - LGA
Read more American Airlines reviews

Flight was fine, but not having WiFi was a major negative

When I booked my flight a month ago - I selected a seat. That seat was NOT the one I ended up with when I checked into my flight the day before. This is the second time this has occurred. So, I checked my next flight on Wednesday and Thursday and no seat was assigned. Poor, very poor customer service.

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

Incredibly delayed. First delay was due to plane coming in being late. Resulted in 30 minute delay. Boarded and then had multiple mechanical issues. Was on plane for an hour until they told people they could get off if they wanted but couldn't come back. Then gate agent rushed in and said they had lost control of who went off and we would all have to deplane and then get back on. They said flight had not been cancelled. Then while sitting waiting to board again they announced it would take two hours to get new plane and to wait at new gate. New plane arrived, reboarded only to find out that pilots had timed out. Waited for new pilots. In that time one of the flight attendants timed out. Never received food or water while waiting. Was confusing mess as to what was happening. Even flight attendants and gate agents were getting frustrated. Almost 6 hours delayed. Called American to received flight credit but can't get anywhere as Kayak reservation and don't have a ticket number. Reached out to Kayak but never heard back.

American flight was diverted and delayed but app didn’t show that information so I wasn’t able to change my connection until the last min.

Wifi was spotty. Tray table was very dirty when I sat down.

Very disappointing. Flight was delayed by 1.5 hours and food options are very underwhelming even for first class seats (same food given to economy seats)

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

The plane was very creaky and lots of ringing. Plane was dirty and dingy. I couldn't hear the captain's announcements from the flight deck. Not sure if it was the captain or the audio equipment, but good thing there wasn't an emergency where we needed clear instructions. The overhead compartments were clearly full, but the flight crew allowed people to stand in the back with their carry on luggage. Then after everyone boarded, they had to go to the front to gate check their luggage because there was no room for their bags and then they returned to their seats...such a waste of time when clearly the overhead compartments were full when they originally boarded.

The new planes (American Eagle) are beautiful and especially comfortable. The flight attendants are consistently professional and courteous. And, while it may seem inconsequential, the new liquid tube of coffee creamer—in contrast to the powdered coffee creamer—makes all the difference in a cup of coffee.

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