STL

€508 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 14/5. 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
€789
Typical prices: €807-€914
Lufthansa
Fri 30/1Fri 6/2
DUB - STL • 1 stop
Cheapest one-way flight
€508
Typical prices: €535-€706
Aer Lingus
Thu 14/5
DUB - STL • 1 stop
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, 30 Jan - Fri, 6 Feb
Lufthansa Logo
05:10 - 13:55
DUB
-
STL
14h 45m1 stop
Lufthansa Logo
13:15 - 08:10
STL
-
DUB
12h 55m1 stop
€789Lufthansa
Fri, 23 Jan - Thu, 5 Feb
Multiple Airlines Logo
05:10 - 13:55
DUB
-
STL
14h 45m1 stop
Multiple Airlines Logo
11:22 - 07:30
STL
-
DUB
14h 08m1 stop
€791Multiple Airlines
Fri, 23 Jan - Thu, 5 Feb
Multiple Airlines Logo
07:45 - 23:33
DUB
-
STL
21h 48m2 stops
Multiple Airlines Logo
13:35 - 10:20
STL
-
DUB
14h 45m1 stop
€805Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
07:05 - 23:33
DUB
-
STL
22h 28m2 stops
Multiple Airlines Logo
13:35 - 10:20
STL
-
DUB
14h 45m1 stop
€809Multiple Airlines
Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
10:30 - 23:28
DUB
-
STL
18h 58m2 stops
American Airlines Logo
14:32 - 17:05
STL
-
DUB
21h 33m2 stops
€811American Airlines
Fri, 30 Jan - Fri, 6 Feb
British Airways Logo
07:35 - 18:34
DUB
-
STL
16h 59m2 stops
British Airways Logo
13:35 - 11:15
STL
-
DUB
15h 40m2 stops
€812British Airways
Fri, 23 Jan - Thu, 5 Feb
British Airways Logo
08:45 - 18:34
DUB
-
STL
15h 49m2 stops
British Airways Logo
13:35 - 11:15
STL
-
DUB
15h 40m2 stops
€813British Airways
Fri, 23 Jan - Thu, 5 Feb
Lufthansa Logo
05:10 - 23:59
DUB
-
STL
24h 49m2 stops
Lufthansa Logo
18:40 - 17:10
STL
-
DUB
16h 30m2 stops
€815Lufthansa
Fri, 23 Jan - Thu, 5 Feb
Multiple Airlines Logo
11:55 - 15:29
DUB
-
STL
33h 34m2 stops
Multiple Airlines Logo
16:05 - 17:45
STL
-
DUB
19h 40m2 stops
€819Multiple Airlines
Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
10:30 - 09:34
DUB
-
STL
29h 04m2 stops
American Airlines Logo
14:00 - 08:40
STL
-
DUB
13h 40m1 stop
€826American 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 €683 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 €966 and €952 respectively. For return trips, the best month to travel is February with an average price of €683.

Find deals

Good to know – Book Cheap St. Louis Plane Tickets

Low seasonAugust
Cheapest flight€508
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 €726. On the other hand, the most expensive day to fly is Tuesday, where prices are €904 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 €679 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 €834.

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 11055 reviews
6.9Entertainment
7.5Boarding
7.2Comfort
8.0Crew
6.5Food
Airline reviews

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

6.0 GoodRush, Dec 2025
EWN - CLT
Read more American Airlines reviews

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

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.

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)