STL - SNN

€639 Find Cheap Flights from St. Louis to Shannon

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Shannon departing on 15/9. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Shannon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Shannon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Shannon, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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

Free to useThere are no hidden charges or fees.

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

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Shannon (STL-SNN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from St. Louis to Shannon 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 from St. Louis to Shannon

Mon, 15 Sep - Wed, 24 Sep
United Airlines Logo
09:17 - 07:30STL-SNN
16h 13m1 stop
United Airlines Logo
09:30 - 18:23SNN-STL
14h 53m1 stop
€639United Airlines
Find Deal
Mon, 15 Sep - Wed, 24 Sep
United Airlines Logo
13:39 - 10:15STL-SNN
14h 36m2 stops
United Airlines Logo
09:30 - 18:23SNN-STL
14h 53m1 stop
€642United Airlines
Find Deal
Thu, 2 Oct - Thu, 9 Oct
United Airlines Logo
17:24 - 10:15STL-SNN
10h 51m1 stop
United Airlines Logo
12:30 - 22:00SNN-STL
15h 30m2 stops
€693United Airlines
Find Deal
Mon, 15 Sep - Wed, 24 Sep
Logo
16:05 - 16:10STL-SNN
18h 05m2 stops
Logo
07:40 - 22:35SNN-STL
20h 55m3 stops
€828
Find Deal
Thu, 2 Oct - Thu, 9 Oct
Lufthansa Logo
11:39 - 10:15STL-SNN
16h 36m1 stop
Lufthansa Logo
12:30 - 23:44SNN-STL
17h 14m1 stop
€850Lufthansa
Find Deal
Mon, 15 Sep - Wed, 24 Sep
Logo
16:05 - 20:35STL-SNN
22h 30m2 stops
Logo
07:40 - 22:35SNN-STL
20h 55m3 stops
€871
Find Deal
Thu, 2 Oct - Thu, 9 Oct
Logo
16:05 - 20:35STL-SNN
22h 30m2 stops
Logo
21:15 - 18:17SNN-STL
27h 02m3 stops
€922
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from St. Louis to Shannon to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from St. Louis to Shannon?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Shannon, 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 from St. Louis to Shannon is December, where tickets cost €441 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is €947 and €880 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight€639
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (35% more expensive on average)
Flight from St. Louis to Shannon

When to book flights from St. Louis to Shannon

Are your dates flexible? Find out the best times to travel from St. Louis to Shannon 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. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Shannon

  • What is the cheapest flight from St. Louis to Shannon?

    In the last 3 days, the lowest price for a flight from St. Louis to Shannon was €746 for a return ticket.

  • Which aircraft models fly most regularly from St. Louis to Shannon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Shannon?

    Star Alliance is the only airline alliance operating flights between St. Louis and Shannon.

  • How does KAYAK find such low prices on flights from St. Louis to Shannon?

    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 from St. Louis to Shannon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Shannon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Shannon from 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 from St. Louis to Shannon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Shannon with an airline and back to St. Louis with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Shannon?

    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 Shannon from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

Information on your arrival and departure airports

St. Louis (STL)
Shannon (SNN)

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.