STL

€321 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 12/1. 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
€560
Typical prices: €784-€917
Scandinavian Airlines
Fri 16/1Thu 29/1
DUB - STL • 2 stops
Cheapest one-way flight
€321
Typical prices: €647-€750
Multiple Airlines
Mon 12/1
DUB - STL • 2 stops
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
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, 16 Jan - Thu, 29 Jan
Scandinavian Airlines Logo
12:30 - 23:39DUB-STL
41h 09m2 stops
Scandinavian Airlines Logo
12:00 - 09:25STL-DUB
39h 25m2 stops
€560Scandinavian Airlines
Find Deal
Thu, 22 Jan - Mon, 26 Jan
Scandinavian Airlines Logo
12:30 - 23:37DUB-STL
41h 07m2 stops
Scandinavian Airlines Logo
15:45 - 11:45STL-DUB
38h 00m2 stops
€564Scandinavian Airlines
Find Deal
Thu, 22 Jan - Mon, 26 Jan
Scandinavian Airlines Logo
12:30 - 23:37DUB-STL
41h 07m2 stops
Scandinavian Airlines Logo
15:45 - 11:45STL-DUB
38h 00m2 stops
€565Scandinavian Airlines
Find Deal
Fri, 16 Jan - Thu, 29 Jan
Multiple Airlines Logo
07:30 - 22:34DUB-STL
21h 04m2 stops
Multiple Airlines Logo
13:35 - 10:20STL-DUB
14h 45m1 stop
€748Multiple Airlines
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Thu, 8 Jan - Thu, 15 Jan
Iberia Logo
11:30 - 22:44DUB-STL
17h 14m1 stop
Iberia Logo
09:33 - 08:40STL-DUB
17h 07m1 stop
€788Iberia
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Thu, 8 Jan - Thu, 15 Jan
American Airlines Logo
11:30 - 21:51DUB-STL
16h 21m2 stops
American Airlines Logo
12:11 - 08:40STL-DUB
14h 29m2 stops
€791American Airlines
Find Deal
Fri, 16 Jan - Thu, 29 Jan
British Airways Logo
10:00 - 21:15DUB-STL
17h 15m2 stops
British Airways Logo
14:54 - 11:15STL-DUB
14h 21m2 stops
€793British Airways
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Fri, 16 Jan - Thu, 29 Jan
Lufthansa Logo
10:40 - 22:58DUB-STL
18h 18m1 stop
Lufthansa Logo
13:15 - 08:10STL-DUB
12h 55m1 stop
€797Lufthansa
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Fri, 16 Jan - Thu, 29 Jan
United Airlines Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
United Airlines Logo
06:00 - 07:30STL-DUB
19h 30m2 stops
€800United Airlines
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Thu, 22 Jan - Mon, 26 Jan
Lufthansa Logo
11:45 - 13:55DUB-STL
32h 10m1 stop
Lufthansa Logo
13:15 - 08:10STL-DUB
12h 55m1 stop
€804Lufthansa
Find Deal
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 €712 on average for one-way flights. On the other hand, the most expensive months are July and May, where the average cost of tickets from Ireland is €991 and €948 respectively. For return trips, the best month to travel is August with an average price of €712.

Good to know – Book Cheap St. Louis Plane Tickets

Low seasonAugust
Cheapest flight€321
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly and prices are also 8% 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 €739. On the other hand, the most expensive day to fly is Tuesday, where prices are €920 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 €692 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 €850.

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, +38 more

ANA, Aer Lingus, +39 more

Wednesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Thursday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 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, +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, +38 more

ANA, Aer Lingus, +39 more

Wednesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Thursday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 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, +41 more

ANA, Aer Lingus, +42 more

See more direct flights

Reviews of the top airlines 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.
7.4
United AirlinesOverall score based on 9044 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

8.0 ExcellentTommy, Nov 2025YYZ - EWR
Read more United Airlines reviews

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

We boarded late. The crew at the airport was dismissive. The seat cushion on the plane was uncomfortable.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

United has come a long way, it’s been a fantastic experience traveling with them.

Even though we were delayed, we were able to make our connection

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Great crew, excellent landing, good food. Over all great experience. Thank you!

Older aircraft, no meal, only food was for purchase. Not impressed United.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

The inflight staff is never the issue always the extra and charges american charges! Literally 30 bucks for WiFi! Is insane and then it’s choppy and slow. If you pay for it once you don’t need to pay again for switching aircraft especially when there is flight delays

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

We were told the flight was delayed 5 times, then it was moved to the next day.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

flight was good until we arrived at cmh ten minutes early but then sat on tarmac for twenty minutes because a plane was at our gate, so we had to wait despite the pilot tellling us that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

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