STL

€308 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 18/2. 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
€549
Overall average: €949
Multiple Airlines
Mon 26/1Mon 2/2
DUB - STL • 1 stop
Cheapest one-way flight
€308
Typical prices: €503-€558
Multiple Airlines
Wed 18/2
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

Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
13:45 - 23:33
DUB
-
STL
15h 48m1 stop
Multiple Airlines Logo
10:16 - 09:00
STL
-
DUB
16h 44m1 stop
€549Multiple Airlines
Mon, 12 Jan - Sun, 25 Jan
Multiple Airlines Logo
13:45 - 22:33
DUB
-
STL
14h 48m1 stop
Multiple Airlines Logo
17:42 - 21:20
STL
-
DUB
45h 38m2 stops
€692Multiple Airlines
Mon, 12 Jan - Sun, 25 Jan
Multiple Airlines Logo
10:45 - 23:12
DUB
-
STL
18h 27m2 stops
Multiple Airlines Logo
14:54 - 12:15
STL
-
DUB
15h 21m2 stops
€735Multiple Airlines
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
07:50 - 23:33
DUB
-
STL
21h 43m2 stops
Multiple Airlines Logo
13:35 - 10:20
STL
-
DUB
14h 45m1 stop
€738Multiple Airlines
Fri, 23 Jan - Sun, 25 Jan
American Airlines Logo
11:30 - 21:51
DUB
-
STL
16h 21m2 stops
American Airlines Logo
13:35 - 16:50
STL
-
DUB
21h 15m2 stops
€753American Airlines
Fri, 23 Jan - Thu, 5 Feb
Multiple Airlines Logo
11:30 - 11:36
DUB
-
STL
30h 06m1 stop
Multiple Airlines Logo
14:54 - 19:50
STL
-
DUB
22h 56m2 stops
€760Multiple Airlines
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
10:45 - 21:15
DUB
-
STL
16h 30m2 stops
Multiple Airlines Logo
11:55 - 15:20
STL
-
DUB
21h 25m2 stops
€763Multiple Airlines
Mon, 12 Jan - Sun, 25 Jan
Multiple Airlines Logo
11:30 - 11:41
DUB
-
STL
30h 11m1 stop
Multiple Airlines Logo
06:00 - 08:40
STL
-
DUB
20h 40m1 stop
€766Multiple Airlines
Mon, 12 Jan - Sun, 25 Jan
American Airlines Logo
10:45 - 10:20
DUB
-
STL
29h 35m2 stops
American Airlines Logo
08:13 - 08:40
STL
-
DUB
18h 27m2 stops
€767American Airlines
Fri, 27 Feb - Tue, 3 Mar
American Airlines Logo
11:30 - 23:35
DUB
-
STL
18h 05m2 stops
American Airlines Logo
14:21 - 08:40
STL
-
DUB
12h 19m2 stops
€769American 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 €681 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 €963 and €949 respectively. For return trips, the best month to travel is February with an average price of €681.

Good to know – Book Cheap St. Louis Plane Tickets

Low seasonAugust
Cheapest flight€308
Best time to beat the crowds (17% 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.

  • 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.

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, +37 more

ANA, Aer Lingus, +38 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, +37 more

ANA, Aer Lingus, +38 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 11073 reviews
8.0Crew
7.5Boarding
6.4Food
7.2Comfort
6.9Entertainment
Airline reviews

Original flight was canceled and rescheduled for the next day. Cancelation notice was sent in the middle of the night (only saw it in the morning), leaving no room to find other options. No offers to reimburse for the extra expenses or compensations. My flight to Rio on 12/12 was also delayed for 16 hours. This seems to be the new normal for AA.

6.0 GoodRonald, Dec 2025
GIG - MIA
Read more American Airlines reviews

Original flight was canceled and rescheduled for the next day. Cancelation notice was sent in the middle of the night (only saw it in the morning), leaving no room to find other options. No offers to reimburse for the extra expenses or compensations. My flight to Rio on 12/12 was also delayed for 16 hours. This seems to be the new normal for AA.

Better service. No food options, but we did get drinks and a cookie.

Boarding was organized and timely. Food was mediocre, especially for first class travel.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

WiFi didn’t work the entire flight. Very disappointing. Minimal food and options - sadly the state of current affairs. All other aspects of the flight were fine.

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

For whatever reason, the flight was not catered -we were told it would be a 45 minute delay waiting for catering - so no food. There were opened candy and peanuts in the seatback pocket. Flight landed early in DFW but due to the assigned gate not being available, we sat on the ground for 30 minutes waiting for the gate to open - making the flight actually arrive at the gate late.

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