STL

€368 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 1/6. 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
€668
Overall average: €959
Multiple Airlines
Fri 23/1Fri 30/1
DUB - STL • 2 stops
Cheapest one-way flight
€494
Typical prices: €568-€747
Multiple Airlines
Mon 1/6
DUB - STL • 3 stops
When to travel
February
Cheapest • 18% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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

Fri, 23 Jan - Fri, 30 Jan
Multiple Airlines Logo
07:45 - 23:33
DUB
-
STL
21h 48m2 stops
Multiple Airlines Logo
15:50 - 11:10
STL
-
DUB
13h 20m1 stop
€668Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
Multiple Airlines Logo
13:45 - 23:33
DUB
-
STL
15h 48m1 stop
Multiple Airlines Logo
12:12 - 09:00
STL
-
DUB
14h 48m1 stop
€723Multiple Airlines
Sat, 27 Dec - Tue, 20 Jan
United Airlines Logo
10:40 - 17:54
DUB
-
STL
13h 14m1 stop
United Airlines Logo
15:11 - 08:10
STL
-
DUB
10h 59m1 stop
€733United Airlines
Sat, 24 Jan - Sat, 31 Jan
Multiple Airlines Logo
13:25 - 13:55
DUB
-
STL
30h 30m2 stops
Multiple Airlines Logo
16:05 - 17:55
STL
-
DUB
19h 50m3 stops
€753Multiple Airlines
Sat, 27 Dec - Wed, 14 Jan
United Airlines Logo
10:40 - 17:54
DUB
-
STL
13h 14m1 stop
United Airlines Logo
15:11 - 08:10
STL
-
DUB
10h 59m1 stop
€755United Airlines
Mon, 29 Dec - Sun, 18 Jan
United Airlines Logo
10:40 - 17:54
DUB
-
STL
13h 14m1 stop
United Airlines Logo
15:11 - 08:10
STL
-
DUB
10h 59m1 stop
€762United Airlines
Sat, 24 Jan - Sat, 31 Jan
Multiple Airlines Logo
13:25 - 13:55
DUB
-
STL
30h 30m3 stops
Multiple Airlines Logo
16:05 - 17:55
STL
-
DUB
19h 50m3 stops
€763Multiple Airlines
Mon, 29 Dec - Wed, 14 Jan
United Airlines Logo
10:40 - 17:54
DUB
-
STL
13h 14m1 stop
United Airlines Logo
15:11 - 08:10
STL
-
DUB
10h 59m1 stop
€784United Airlines
Sat, 24 Jan - Sat, 31 Jan
British Airways Logo
07:35 - 18:34
DUB
-
STL
16h 59m2 stops
British Airways Logo
13:40 - 09:50
STL
-
DUB
14h 10m2 stops
€789British Airways
Sat, 27 Dec - Thu, 15 Jan
United Airlines Logo
10:40 - 16:27
DUB
-
STL
11h 47m1 stop
United Airlines Logo
11:20 - 08:10
STL
-
DUB
14h 50m1 stop
€794United 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.

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 February, where tickets cost €688 on average for one-way flights. On the other hand, the most expensive months are May and January, where the average cost of tickets from Ireland is €973 and €959 respectively. For return trips, the best month to travel is February with an average price of €688.

Good to know – Book Cheap St. Louis Plane Tickets

Low seasonAugust
Cheapest flight€494
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly and prices are also 9% 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 tickets can be as cheap as €732. On the other hand, the most expensive day to fly is Tuesday, where prices are €911 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 flights cost €684 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 €841.

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, +39 more

ANA, Aer Lingus, +40 more

Tuesday

ANA, Aer Lingus, Aeromexico, +36 more

ANA, Aer Lingus, +37 more

Wednesday

ANA, Aeromexico, Air Canada, +39 more

ANA, Aeromexico, +40 more

Thursday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Friday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Saturday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Sunday

ANA, Aer Lingus, Aeromexico, +41 more

ANA, Aer Lingus, +42 more

See more direct flights

Direct returns

Lambert-St Louis to Ireland

Monday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Tuesday

ANA, Aer Lingus, Aeromexico, +36 more

ANA, Aer Lingus, +37 more

Wednesday

ANA, Aeromexico, Air Canada, +39 more

ANA, Aeromexico, +40 more

Thursday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Friday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Saturday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Sunday

ANA, Aer Lingus, Aeromexico, +41 more

ANA, Aer Lingus, +42 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 11048 reviews
6.9Entertainment
7.2Comfort
6.5Food
8.0Crew
7.5Boarding
Airline reviews

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

8.0 ExcellentConnie, Dec 2025
PHX - MKE
Read more American Airlines reviews

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

A little late at the start but all worked out well.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

I liked the humor of the captain and crew on the flight from Flagstaff to Dallas. They were humorous.

AA delayed the flight for 3 hours and 50 minutes, but delayed the last 2 hours, 30 minutes at a time, so if we knew before, could have stayed at home and worked instead of being at the airport wasting time... The plane's crew was excellent, not their fault.

After arriving in Dallas, the aircraft taxied for an unusually long time and was unable to park at the gate, which caused a significant delay and made me miss my connecting flight. I then had to wait in a very long line to be rebooked, and I was told that no hotel or meal accommodations would be provided. What is even more unacceptable is that my luggage was mishandled and has still not been located. My suitcase contains important medications that I urgently need, and I have been unable to access them due to the airline’s mishandling. This situation has caused me considerable stress and inconvenience, and I need this issue to be resolved immediately.

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