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Cheap flights from St. Louis to Shannon from €446

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Shannon departing on 17/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Shannon

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:20 - 10:15
STL
-
SNN
15h 55m
1 stop
United Airlines Logo
12:30 - 21:25
SNN
-
STL
14h 55m
1 stop
€658United Airlines
Mon, 12 Oct - Wed, 21 Oct
United Airlines Logo
06:15 - 10:15
STL
-
SNN
22h 00m
2 stops
United Airlines Logo
12:30 - 12:13
SNN
-
STL
29h 43m
3 stops
€662United Airlines
Mon, 12 Oct - Wed, 21 Oct
United Airlines Logo
08:00 - 07:30
STL
-
SNN
17h 30m
1 stop
United Airlines Logo
12:30 - 23:38
SNN
-
STL
17h 08m
1 stop
€719United Airlines
Wed, 9 Sep - Tue, 22 Sep
United Airlines Logo
12:59 - 07:30
STL
-
SNN
12h 31m
1 stop
United Airlines Logo
12:30 - 20:47
SNN
-
STL
14h 17m
1 stop
€720United Airlines
Thu, 10 Sep - Thu, 17 Sep
United Airlines Logo
08:35 - 10:15
STL
-
SNN
19h 40m
2 stops
United Airlines Logo
12:30 - 22:00
SNN
-
STL
15h 30m
2 stops
€723United Airlines
Wed, 9 Sep - Tue, 22 Sep
Delta Logo
10:29 - 11:10
STL
-
SNN
18h 41m
2 stops
Delta Logo
13:05 - 09:00
SNN
-
STL
25h 55m
2 stops
€723Delta
Thu, 10 Sep - Thu, 17 Sep
United Airlines Logo
12:59 - 07:30
STL
-
SNN
12h 31m
1 stop
United Airlines Logo
12:30 - 20:47
SNN
-
STL
14h 17m
1 stop
€724United Airlines
Thu, 10 Sep - Thu, 17 Sep
United Airlines Logo
08:35 - 10:15
STL
-
SNN
19h 40m
2 stops
United Airlines Logo
12:30 - 22:00
SNN
-
STL
15h 30m
2 stops
€727United Airlines
Wed, 9 Sep - Tue, 22 Sep
United Airlines Logo
12:59 - 10:15
STL
-
SNN
15h 16m
2 stops
United Airlines Logo
09:30 - 15:38
SNN
-
STL
12h 08m
1 stop
€728United Airlines
Thu, 10 Sep - Thu, 17 Sep
United Airlines Logo
17:30 - 07:30
STL
-
SNN
32h 00m
1 stop
United Airlines Logo
09:30 - 17:06
SNN
-
STL
13h 36m
1 stop
€729United Airlines
Wed, 2 Sep - Wed, 9 Sep

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American Airlines flights from St. Louis to Shannon, Clare

Our best American Airlines deals on St. Louis to Shannon, Clare flight tickets
American Airlines
10 Nov
STL13:20Lambert-St Louis
16h 10m
2 stops
SNN11:30Shannon
1 Dec
SNN14:45Shannon
26h 29m
1 stop
STL11:14Lambert-St Louis
€844
American Airlines
10 Nov
STL13:20Lambert-St Louis
16h 10m
2 stops
SNN11:30Shannon
1 Dec
SNN14:45Shannon
26h 29m
1 stop
STL11:14Lambert-St Louis
€849
American Airlines
10 Nov
STL09:50Lambert-St Louis
14h 30m
1 stop
SNN06:20Shannon
1 Dec
SNN14:45Shannon
26h 29m
1 stop
STL11:14Lambert-St Louis
€856

Delta flights from St. Louis to Shannon, Clare

Our best Delta deals on St. Louis to Shannon, Clare flight tickets
Delta
10 Sept
STL10:29Lambert-St Louis
18h 41m
2 stops
SNN11:10Shannon
17 Sept
SNN13:05Shannon
25h 55m
2 stops
STL09:00Lambert-St Louis
€723
Delta
17 Aug
STL07:00Lambert-St Louis
22h 10m
2 stops
SNN11:10Shannon
31 Aug
SNN13:05Shannon
16h 53m
2 stops
STL23:58Lambert-St Louis
€806
Delta
17 Sept
STL06:15Lambert-St Louis
22h 55m
2 stops
SNN11:10Shannon
20 Sept
SNN13:05Shannon
25h 55m
2 stops
STL09:00Lambert-St Louis
€822

momondo Fare Finder

 
Customise your flight search to find flights from St. Louis to Shannon, Clare that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 1 August 2026.
Use the filters below to find and compare flights from St. Louis to Shannon, Clare that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 12/10

12:20-10:15

1 stop15h 55m

Shannon

Wed 21/10

12:30-21:25

1 stop14h 55m

€658

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 12/10

06:15-10:15

2 stops22h 00m

Shannon

Wed 21/10

12:30-12:13

3 stops29h 43m

€662

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 9/9

08:00-07:30

1 stop17h 30m

Shannon

Tue 22/9

12:30-23:38

1 stop17h 08m

€719
Fastest return journey

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 10/9

12:59-07:30

1 stop12h 31m

Shannon

Thu 17/9

12:30-20:47

1 stop14h 17m

€720

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 9/9

08:35-10:15

2 stops19h 40m

Shannon

Tue 22/9

12:30-22:00

2 stops15h 30m

€723

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 10/9

10:29-11:10

2 stops18h 41m

Shannon

Thu 17/9

13:05-09:00

2 stops25h 55m

€723

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 10/9

12:59-07:30

1 stop12h 31m

Shannon

Thu 17/9

12:30-20:47

1 stop14h 17m

€724

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 9/9

08:35-10:15

2 stops19h 40m

Shannon

Tue 22/9

12:30-22:00

2 stops15h 30m

€727

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 10/9

12:59-10:15

2 stops15h 16m

Shannon

Thu 17/9

09:30-15:38

1 stop12h 08m

€728

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 2/9

17:30-07:30

1 stop32h 00m

Shannon

Wed 9/9

09:30-17:06

1 stop13h 36m

€729

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Shannon from

How to get the cheapest flight ticket from St. Louis to Shannon, Clare

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Shannon, Clare?

Prices are currently typical for flights on this route.

Typical prices usually range from €528 to €813.
The lowest price recently found on this route was €658.

What is the cheapest month to fly to Shannon, Clare?

The month of January is another great option to travel to Shannon, Clare, with average flight prices from St. Louis averaging around €0.

When to book flights from St. Louis to Shannon, Clare

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Shannon, Clare according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap St. Louis to Shannon, Clare (STL to SNN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Shannon, Clare

Fastest flight time

11h 25m

Direct flights

None
The fastest flight from St. Louis to Shannon, Clare takes 11h 25m
There are no direct flights from St. Louis to Shannon, Clare. There are no popular flight routes from St. Louis to Shannon, Clare.
Search flight deals

Frequently asked questions about flying from St. Louis to Shannon, Clare

  • How far is Lambert-St Louis to Shannon by plane?

    Shannon is 6155.2 km away from Lambert-St Louis. 11h 25m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Shannon Airport?

    Prices for flights from Lambert-St Louis Airport to Shannon Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Lambert-St Louis Airport to Shannon Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Shannon Airport.

  • What documentation or ID do you need to fly to Shannon Airport?

    The travel and health documents required for your trip to Shannon Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Shannon Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Limerick
Ennis
Tipperary
Nenagh
Killaloe
Lahinch
Adare
Bunratty

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Shannon?

Finding the right flight to Shannon from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Shannon quick and easy, saving you time and money.

Can I find flights from St. Louis to Shannon with flexible booking policies on momondo?

momondo does allow users to show only those flights to Shannon from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Shannon?

momondo provides multiple filters to help you find the best flight to Shannon from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Shannon right now. Can momondo alert me if prices change?

Price alerts on flights to Shannon from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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