STL

€462 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 25/5. 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
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Everything you should know

Cheapest return fare
€705
Typical prices: €842-€895
Aer Lingus
Wed 22/4Wed 29/4
DUB - STL • 1 stop
Cheapest one-way flight
€462
Typical prices: €543-€716
WestJet
Mon 25/5
DUB - STL • 2 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

Wed, 22 Apr - Wed, 29 Apr
Aer Lingus Logo
09:40 - 19:30
DUB
-
STL
15h 50m
1 stop
Aer Lingus Logo
21:35 - 14:50
STL
-
DUB
11h 15m
1 stop
€705Aer Lingus
Tue, 5 May - Mon, 11 May
American Airlines Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
American Airlines Logo
16:30 - 11:50
STL
-
DUB
13h 20m
1 stop
€714American Airlines
Wed, 6 May - Sun, 10 May
American Airlines Logo
12:40 - 19:31
DUB
-
STL
12h 51m
1 stop
American Airlines Logo
15:38 - 09:45
STL
-
DUB
12h 07m
1 stop
€731American Airlines
Wed, 22 Apr - Wed, 29 Apr
Aer Lingus Logo
08:40 - 19:30
DUB
-
STL
16h 50m
1 stop
Aer Lingus Logo
21:35 - 14:50
STL
-
DUB
11h 15m
1 stop
€736Aer Lingus
Tue, 21 Apr - Tue, 28 Apr
Aer Lingus Logo
12:00 - 19:30
DUB
-
STL
13h 30m
1 stop
Aer Lingus Logo
21:35 - 15:45
STL
-
DUB
12h 10m
1 stop
€748Aer Lingus
Fri, 8 May - Wed, 13 May
American Airlines Logo
12:40 - 22:59
DUB
-
STL
16h 19m
1 stop
American Airlines Logo
16:30 - 11:50
STL
-
DUB
13h 20m
1 stop
€749American Airlines
Mon, 4 May - Mon, 11 May
American Airlines Logo
09:30 - 17:21
DUB
-
STL
13h 51m
1 stop
American Airlines Logo
13:29 - 06:30
STL
-
DUB
11h 01m
1 stop
€753American Airlines
Fri, 8 May - Sat, 9 May
Multiple Airlines Logo
10:40 - 23:19
DUB
-
STL
18h 39m
2 stops
Multiple Airlines Logo
20:12 - 11:45
STL
-
DUB
33h 33m
1 stop
€778Multiple Airlines
Fri, 8 May - Sat, 9 May
American Airlines Logo
09:30 - 16:41
DUB
-
STL
13h 11m
1 stop
American Airlines Logo
17:21 - 11:50
STL
-
DUB
12h 29m
1 stop
€781American Airlines
Thu, 7 May - Sat, 9 May
American Airlines Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
American Airlines Logo
13:16 - 06:30
STL
-
DUB
11h 14m
1 stop
€787American 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 12h 19m.

Good to know – Book Cheap St. Louis Plane Tickets

Low seasonAugust
Cheapest flight€462
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 11403 reviews
6.9Entertainment
7.5Boarding
8.0Crew
6.4Food
7.2Comfort
Airline reviews

I understand that there is a catering issue - water should be the minimum stock. During the flight, not once that the attendants came through with water. The conversations in the kitchen were very loud and they were swearing. I do not expect any white glove service, at the minimum, we should be cordial. It was almost an inconveniece that we were on the flight. And it made us feel if you even dare question us, we'll make you deplane.

2.0 MediocreDoreen, Mar 2026
LHR - ORD
Read more American Airlines reviews

I understand that there is a catering issue - water should be the minimum stock. During the flight, not once that the attendants came through with water. The conversations in the kitchen were very loud and they were swearing. I do not expect any white glove service, at the minimum, we should be cordial. It was almost an inconveniece that we were on the flight. And it made us feel if you even dare question us, we'll make you deplane.

I didn't end up taking this flight. I got up at 4am for a flight that was supposed to board at 6am - at 5:55am you delayed the flight to 10am. The airport is under construction so I switched to a later flight as I wasn't going to sit in the airport for 4 hours. They said the delay was due to the crew needing rest from a flight coming in late the night before - if that was the case then I think you should have delayed the flight much sooner so that passengers wouldn't get up so early and get to the airport to sit and wait.

Never had such a lazy first class attendant. Literally spent 60%+ of the flight playing games on her personal phone making up excuses of why she was unavailable.

The flight attendants and the service is getting worse by the day.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Like all of the flights I took to get down to Dallas. They were delayed

Other than nearly three hour delay for maintenance issues, everything went smooth

Plane from partner PSA was filthy. Plastic needs to be thoroughly cleaned. Really disgusting to look at and wonder about cleanliness of parts less visible.

Meals were not so good. Snack between the meals was very bad. Like Japan Airlines, they could eliminate the snack and make the second meal much better.

The baggage claim experience was poor. The plane crew and the AA app said that checked baggage in CLT would be at carousel 7 but the sign at Baggage Claim said carousel 1. The carousel 1 sign had the correct flight # listed above the belt. But the luggage never came. I went to an AA baggage claim office after about 1 hour and the clerk directed me to another AA room that was poorly marked, with a closed door and no obvious way to know what to do. Finally someone opened the door and my bag was inside. The clerk was totally unable to explain why.

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