$330 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 2/9. 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$842
Typical prices: $948-$1,022
Multiple Airlines
Sat 1/24Sat 1/31
DUB - STL • 1 stop
Cheapest one-way
$330
Typical prices: $592-$657
Multiple Airlines
Mon 2/9
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 100s 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 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

Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
1:45 pm - 11:33 pm
DUB
-
STL
15h 48m1 stop
Multiple Airlines Logo
12:12 pm - 9:00 am
STL
-
DUB
14h 48m1 stop
$842Multiple Airlines
Sat, Dec 27 - Tue, Jan 20
United Airlines Logo
10:40 am - 5:54 pm
DUB
-
STL
13h 14m1 stop
United Airlines Logo
3:11 pm - 8:10 am
STL
-
DUB
10h 59m1 stop
$854United Airlines
Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
1:25 pm - 1:55 pm
DUB
-
STL
30h 30m2 stops
Multiple Airlines Logo
4:05 pm - 5:55 pm
STL
-
DUB
19h 50m3 stops
$877Multiple Airlines
Sat, Dec 27 - Wed, Jan 14
United Airlines Logo
10:40 am - 5:54 pm
DUB
-
STL
13h 14m1 stop
United Airlines Logo
3:11 pm - 8:10 am
STL
-
DUB
10h 59m1 stop
$879United Airlines
Mon, Dec 29 - Sun, Jan 18
United Airlines Logo
10:40 am - 5:54 pm
DUB
-
STL
13h 14m1 stop
United Airlines Logo
3:11 pm - 8:10 am
STL
-
DUB
10h 59m1 stop
$888United Airlines
Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
1:25 pm - 1:55 pm
DUB
-
STL
30h 30m3 stops
Multiple Airlines Logo
4:05 pm - 5:55 pm
STL
-
DUB
19h 50m3 stops
$889Multiple Airlines
Mon, Dec 29 - Wed, Jan 14
United Airlines Logo
10:40 am - 5:54 pm
DUB
-
STL
13h 14m1 stop
United Airlines Logo
3:11 pm - 8:10 am
STL
-
DUB
10h 59m1 stop
$913United Airlines
Sat, Jan 24 - Sat, Jan 31
British Airways Logo
7:35 am - 6:34 pm
DUB
-
STL
16h 59m2 stops
British Airways Logo
1:40 pm - 9:50 am
STL
-
DUB
14h 10m2 stops
$919British Airways
Sat, Dec 27 - Thu, Jan 15
United Airlines Logo
10:40 am - 4:27 pm
DUB
-
STL
11h 47m1 stop
United Airlines Logo
11:20 am - 8:10 am
STL
-
DUB
14h 50m1 stop
$925United Airlines
Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
9:00 am - 3:29 pm
DUB
-
STL
12h 29m1 stop
Multiple Airlines Logo
12:44 pm - 10:05 am
STL
-
DUB
15h 21m2 stops
$929Multiple Airlines
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 February, where tickets cost $801 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 $1,133 and $1,117 respectively. For return trips, the best month to travel is February with an average price of $801.

Find deals

Good to know

Low seasonAugust
Cheapest flight$330
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 9% 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 2,451 direct flights from within Ireland to St. Louis. The most common day for departures is Monday, 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)