$412 Find Cheap Flights from Ireland 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 9/5. 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

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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Flights Deals

Cheap Flights from Ireland to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ireland 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 round-trip flight deals from Ireland to St. Louis

Sun, Sep 7 - Thu, Sep 18
Aer Lingus Logo
4:40 pm - 11:48 pmDUB-STL
13h 08m1 stop
Aer Lingus Logo
6:00 am - 8:10 amSTL-DUB
20h 10m1 stop
$619Aer Lingus
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Sun, Sep 7 - Thu, Sep 18
Aer Lingus Logo
3:25 pm - 11:48 pmDUB-STL
38h 23m2 stops
Aer Lingus Logo
7:23 am - 10:40 amSTL-DUB
21h 17m1 stop
$630Aer Lingus
Find Deal
Thu, Dec 4 - Mon, Dec 8
Scandinavian Airlines Logo
12:30 pm - 11:39 pmDUB-STL
41h 09m2 stops
Scandinavian Airlines Logo
1:30 pm - 11:45 amSTL-DUB
40h 15m2 stops
$732Scandinavian Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Scandinavian Airlines Logo
12:30 pm - 8:49 pmDUB-STL
38h 19m2 stops
Scandinavian Airlines Logo
1:30 pm - 11:45 amSTL-DUB
40h 15m2 stops
$843Scandinavian Airlines
Find Deal
Fri, Nov 21 - Sat, Nov 29
Lufthansa Logo
5:10 am - 5:39 pmDUB-STL
18h 29m2 stops
Lufthansa Logo
1:10 pm - 10:20 amSTL-DUB
15h 10m1 stop
$894Lufthansa
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Fri, Nov 21 - Sat, Nov 29
Lufthansa Logo
5:10 am - 1:55 pmDUB-STL
14h 45m1 stop
Lufthansa Logo
5:11 pm - 9:55 amSTL-DUB
10h 44m1 stop
$915Lufthansa
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Mon, Nov 3 - Tue, Nov 11
Delta Logo
5:55 am - 11:02 pmDUB-STL
23h 07m2 stops
Delta Logo
5:45 pm - 3:45 pmSTL-DUB
16h 00m2 stops
$922Delta
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Mon, Nov 3 - Tue, Nov 11
United Airlines Logo
9:00 am - 3:29 pmDUB-STL
12h 29m1 stop
United Airlines Logo
11:20 am - 9:55 amSTL-DUB
16h 35m2 stops
$924United Airlines
Find Deal
Fri, Nov 21 - Sat, Nov 29
United Airlines Logo
9:00 am - 3:29 pmDUB-STL
12h 29m1 stop
United Airlines Logo
3:14 pm - 9:55 amSTL-DUB
12h 41m2 stops
$928United Airlines
Find Deal
Mon, Sep 22 - Wed, Oct 1
Delta Logo
8:55 am - 8:34 pmDUB-STL
17h 39m2 stops
Delta Logo
6:00 pm - 3:00 pmSTL-DUB
15h 00m2 stops
$984Delta
Find Deal
Booking Insights

KAYAK's insights & trends for flights to St. Louis

Get data-powered insights and trends for 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 $821 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 $1,134 and $1,093 respectively. For one-way flights, the best month to travel is August with an average price of $821.


Good to know

Low seasonAugust
Cheapest flight$412
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Dublin to St. Louis

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    Lambert-St Louis Airport is 13 miles from the center of St. Louis.

  • What is the name of St. Louis’s airport?

    There is only 1 airport in St. Louis, called Lambert-St Louis Airport (STL). It can also be referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • 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 travelers 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 morning, when round-trip flights cost $1,057 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 $1,057.

  • How many direct flights to St. Louis are there each week?

    Each week there are around 1,509 direct flights from within Ireland to St. Louis. The most common day for departures is Sunday, with 17% of flights taking off on this day.

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.

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

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