STL

€359 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 15/12. 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

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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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, 4 Dec - Mon, 8 Dec
Scandinavian Airlines Logo
12:30 - 23:41DUB-STL
41h 11m2 stops
Scandinavian Airlines Logo
11:40 - 11:45STL-DUB
42h 05m2 stops
€519Scandinavian Airlines
Find Deal
Wed, 3 Dec - Sat, 13 Dec
Scandinavian Airlines Logo
12:30 - 21:03DUB-STL
38h 33m2 stops
Scandinavian Airlines Logo
13:33 - 11:45STL-DUB
40h 12m2 stops
€549Scandinavian Airlines
Find Deal
Thu, 4 Dec - Sat, 13 Dec
Scandinavian Airlines Logo
12:30 - 23:41DUB-STL
41h 11m2 stops
Scandinavian Airlines Logo
13:33 - 11:45STL-DUB
40h 12m2 stops
€550Scandinavian Airlines
Find Deal
Thu, 4 Dec - Wed, 10 Dec
Multiple Airlines Logo
21:30 - 22:46DUB-STL
31h 16m2 stops
Multiple Airlines Logo
16:32 - 08:45STL-DUB
10h 13m1 stop
€671Multiple Airlines
Find Deal
Fri, 5 Dec - Wed, 10 Dec
Multiple Airlines Logo
06:30 - 22:46DUB-STL
22h 16m2 stops
Multiple Airlines Logo
16:32 - 08:45STL-DUB
10h 13m1 stop
€682Multiple Airlines
Find Deal
Wed, 26 Nov - Fri, 5 Dec
KLM Logo
05:55 - 17:09DUB-STL
17h 14m2 stops
KLM Logo
13:55 - 07:45STL-DUB
11h 50m1 stop
€750KLM
Find Deal
Thu, 13 Nov - Tue, 18 Nov
Lufthansa Logo
05:00 - 23:44DUB-STL
24h 44m2 stops
Lufthansa Logo
11:49 - 07:30STL-DUB
13h 41m1 stop
€752Lufthansa
Find Deal
Tue, 2 Dec - Sat, 13 Dec
American Airlines Logo
10:55 - 23:56DUB-STL
19h 01m2 stops
American Airlines Logo
14:54 - 12:45STL-DUB
15h 51m2 stops
€755American Airlines
Find Deal
Mon, 1 Dec - Sat, 13 Dec
American Airlines Logo
10:45 - 23:56DUB-STL
19h 11m2 stops
American Airlines Logo
14:54 - 12:45STL-DUB
15h 51m2 stops
€756American Airlines
Find Deal
Tue, 2 Dec - Fri, 12 Dec
KLM Logo
08:50 - 20:46DUB-STL
17h 56m2 stops
KLM Logo
09:30 - 07:45STL-DUB
16h 15m1 stop
€762KLM
Find Deal

Everything you should know

When to travel
August
Cheapest • 15% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
€519
Typical prices: €737-894
Scandinavian Airlines
Thu 4/12Mon 8/12
DUB - STL • 2 stops
Cheapest one-way flight
€359
Typical prices: €649-717
Multiple Airlines
Mon 15/12
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!
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.

What is the cheapest month to fly to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to St. Louis is August, where tickets cost €695 on average for return flights. On the other hand, the most expensive months are July and May, where the average cost of tickets from Ireland is €959 and €925 respectively. For one-way flights, the best month to travel is August with an average price of €695.

Find deals

Good to know – Book Cheap St. Louis Plane Tickets

Low seasonAugust
Cheapest flight€359
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly and prices are also 7% 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.

  • What is the cheapest day to fly to St. Louis?

    Based on KAYAK data, the cheapest day to fly to St. Louis is Thursday where round-trip tickets can be as cheap as €721. On the other hand, the most expensive day to fly is Tuesday, where round-trip prices are €897 on average.

  • 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.

  • What is the cheapest time of day to fly to St. Louis?

    The cheapest time of day to fly to St. Louis is generally in the afternoon, when round-trip flights cost €797 on average. The most expensive time of day to fly to St. Louis is generally in the morning, which is peak travel time and where the average cost of a ticket is €979.

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.

Prefer to fly direct to Lambert-St Louis?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop to Lambert-St Louis.
Find which airlines fly direct to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

Ireland to Lambert-St Louis

Monday

ANA, Aer Lingus, Aeromexico, +38 more

ANA, Aer Lingus, +39 more

Tuesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Wednesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Thursday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Friday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Saturday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Sunday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

See more direct flights

Direct returns

Lambert-St Louis to Ireland

Monday

ANA, Aer Lingus, Aeromexico, +38 more

ANA, Aer Lingus, +39 more

Tuesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Wednesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Thursday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Friday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Saturday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Sunday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

See more direct flights

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.
7.2
American AirlinesOverall score based on 10000 reviews
7.2Comfort
6.4Food
8.0Crew
7.5Boarding
6.9Entertainment
Airline reviews

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

10.0 ExcellentDouglas, Sept 2025SLC - CLT
Read more American Airlines reviews

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

The delayed flight was awful and moving the departure gate twice was annoying

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The flight was on time and crew were nice, seats were tight and there was entertainment available

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Fairview Heights
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)

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