$435 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 4/15. 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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Flight 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

Thu, Dec 4 - Mon, Dec 8
Scandinavian Airlines Logo
12:30 pm - 11:42 pmDUB-STL
41h 12m2 stops
Scandinavian Airlines Logo
1:57 pm - 11:45 amSTL-DUB
39h 48m2 stops
$691Scandinavian Airlines
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Thu, Dec 4 - Mon, Dec 8
Scandinavian Airlines Logo
12:30 pm - 11:42 pmDUB-STL
41h 12m2 stops
Scandinavian Airlines Logo
1:57 pm - 11:45 amSTL-DUB
39h 48m2 stops
$692Scandinavian Airlines
Find Deal
Wed, Nov 26 - Wed, Dec 3
Aer Lingus Logo
7:35 am - 11:56 pmDUB-STL
22h 21m2 stops
Aer Lingus Logo
11:04 am - 4:35 pmSTL-DUB
23h 31m2 stops
$797Aer Lingus
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Mon, Nov 24 - Tue, Dec 9
Aer Lingus Logo
7:35 am - 11:56 pmDUB-STL
22h 21m2 stops
Aer Lingus Logo
1:43 pm - 10:15 amSTL-DUB
14h 32m2 stops
$875Aer Lingus
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Fri, Nov 21 - Sat, Nov 29
Multiple Airlines Logo
11:30 am - 7:29 pmDUB-STL
13h 59m2 stops
Multiple Airlines Logo
10:44 am - 8:40 amSTL-DUB
15h 56m1 stop
$907Multiple Airlines
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Mon, Nov 24 - Tue, Dec 9
Multiple Airlines Logo
9:00 am - 3:29 pmDUB-STL
12h 29m1 stop
Multiple Airlines Logo
6:42 pm - 8:10 amSTL-DUB
31h 28m1 stop
$915Multiple Airlines
Find Deal
Wed, Nov 26 - Wed, Dec 3
Lufthansa Logo
5:10 am - 1:55 pmDUB-STL
14h 45m1 stop
Lufthansa Logo
1:00 pm - 8:10 amSTL-DUB
13h 10m1 stop
$917Lufthansa
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Mon, Nov 24 - Tue, Dec 9
Lufthansa Logo
11:45 am - 11:44 pmDUB-STL
17h 59m2 stops
Lufthansa Logo
1:00 pm - 8:10 amSTL-DUB
13h 10m1 stop
$922Lufthansa
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Fri, Nov 21 - Sat, Nov 29
United Airlines Logo
9:00 am - 3:29 pmDUB-STL
12h 29m1 stop
United Airlines Logo
8:25 am - 10:20 amSTL-DUB
19h 55m1 stop
$929United Airlines
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Fri, Dec 12 - Fri, Dec 19
United Airlines Logo
9:00 am - 3:29 pmDUB-STL
12h 29m1 stop
United Airlines Logo
8:05 am - 7:10 amSTL-DUB
17h 05m2 stops
$1,099United Airlines
Find Deal

Everything you should know

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
Cheapest round-trip
$691
Typical prices: $903-$1,114
Scandinavian Airlines
Thu 12/4Mon 12/8
DUB - STL • 2 stops
Cheapest one-way
$435
Typical prices: $666-$698
Aer Lingus
Wed 4/15
DUB - STL • 2 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
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 one-way 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 return trips, the best month to travel is August with an average price of $821.

Find deals

Good to know

Low seasonAugust
Cheapest flight$435
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 8% lower on average.
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 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 1,935 direct flights from within Ireland to St. Louis. The most common day for departures is Thursday, with 16% 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.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

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)

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