Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from St. Louis to Shannon from €264

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 29/5. 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
0 bags
Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Shannon

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
15:20 - 11:30
STL
-
SNN
14h 10m
2 stops
British Airways Logo
20:05 - 18:52
SNN
-
STL
28h 47m
2 stops
€382British Airways
Wed, 11 Feb - Mon, 16 Feb
United Airlines Logo
10:00 - 10:15
STL
-
SNN
18h 15m
2 stops
United Airlines Logo
12:30 - 22:30
SNN
-
STL
16h 00m
2 stops
€400United Airlines
Tue, 5 May - Wed, 13 May
British Airways Logo
14:19 - 16:45
STL
-
SNN
20h 26m
2 stops
British Airways Logo
07:50 - 19:30
SNN
-
STL
17h 40m
2 stops
€416British Airways
Wed, 25 Feb - Sun, 1 Mar
British Airways Logo
11:46 - 11:30
STL
-
SNN
18h 44m
2 stops
British Airways Logo
07:40 - 19:30
SNN
-
STL
17h 50m
2 stops
€424British Airways
Wed, 25 Mar - Sat, 4 Apr
United Airlines Logo
06:00 - 10:15
STL
-
SNN
22h 15m
2 stops
United Airlines Logo
12:30 - 16:01
SNN
-
STL
33h 31m
2 stops
€425United Airlines
Tue, 5 May - Tue, 12 May
British Airways Logo
18:57 - 16:45
STL
-
SNN
16h 48m
2 stops
British Airways Logo
17:25 - 17:13
SNN
-
STL
29h 48m
2 stops
€429British Airways
Wed, 25 Mar - Sat, 4 Apr
British Airways Logo
18:57 - 16:45
STL
-
SNN
16h 48m
2 stops
British Airways Logo
17:25 - 17:13
SNN
-
STL
29h 48m
2 stops
€438British Airways
Wed, 25 Mar - Sat, 4 Apr
British Airways Logo
18:33 - 16:45
STL
-
SNN
17h 12m
2 stops
British Airways Logo
20:05 - 19:29
SNN
-
STL
28h 24m
2 stops
€455British Airways
Sun, 8 Mar - Sun, 15 Mar
British Airways Logo
18:57 - 19:35
STL
-
SNN
43h 38m
2 stops
British Airways Logo
17:30 - 17:13
SNN
-
STL
29h 43m
2 stops
€476British Airways
Fri, 27 Mar - Sat, 4 Apr
United Airlines Logo
10:14 - 10:15
STL
-
SNN
18h 01m
2 stops
United Airlines Logo
12:30 - 16:57
SNN
-
STL
34h 27m
2 stops
€482United Airlines
Sat, 2 May - Thu, 7 May

British Airways flights from St. Louis to Shannon, Clare

Our best British Airways deals on St. Louis to Shannon, Clare flight tickets
British Airways
11 Feb
STL15:20Lambert-St Louis
14h 10m
2 stops
SNN11:30Shannon
16 Feb
SNN20:05Shannon
28h 47m
2 stops
STL18:52Lambert-St Louis
€382
British Airways
25 Feb
STL14:19Lambert-St Louis
20h 26m
2 stops
SNN16:45Shannon
1 Mar
SNN07:50Shannon
17h 40m
2 stops
STL19:30Lambert-St Louis
€416
British Airways
25 Mar
STL11:46Lambert-St Louis
18h 44m
2 stops
SNN11:30Shannon
4 Apr
SNN07:40Shannon
17h 50m
2 stops
STL19:30Lambert-St Louis
€424

American Airlines flights from St. Louis to Shannon, Clare

Our best American Airlines deals on St. Louis to Shannon, Clare flight tickets
American Airlines
25 Mar
STL11:59Lambert-St Louis
13h 21m
1 stop
SNN06:20Shannon
4 Apr
SNN07:30Shannon
18h 00m
2 stops
STL19:30Lambert-St Louis
€513
American Airlines
25 Mar
STL11:59Lambert-St Louis
13h 21m
1 stop
SNN06:20Shannon
4 Apr
SNN13:45Shannon
26h 24m
1 stop
STL10:09Lambert-St Louis
€530
American Airlines
25 Mar
STL11:59Lambert-St Louis
13h 21m
1 stop
SNN06:20Shannon
4 Apr
SNN13:45Shannon
26h 24m
1 stop
STL10:09Lambert-St Louis
€584

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 22 January 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

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 11/2

15:20-11:30

2 stops14h 10m

Shannon

Mon 16/2

20:05-18:52

2 stops28h 47m

€382

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Tue 5/5

10:00-10:15

2 stops18h 15m

Shannon

Wed 13/5

12:30-22:30

2 stops16h 00m

€400

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 25/2

14:19-16:45

2 stops20h 26m

Shannon

Sun 1/3

07:50-19:30

2 stops17h 40m

€416

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 25/3

11:46-11:30

2 stops18h 44m

Shannon

Sat 4/4

07:40-19:30

2 stops17h 50m

€424

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Tue 5/5

06:00-10:15

2 stops22h 15m

Shannon

Tue 12/5

12:30-16:01

2 stops33h 31m

€425

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 25/3

18:57-16:45

2 stops16h 48m

Shannon

Sat 4/4

17:25-17:13

2 stops29h 48m

€429

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 25/3

18:57-16:45

2 stops16h 48m

Shannon

Sat 4/4

17:25-17:13

2 stops29h 48m

€438

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sun 8/3

18:33-16:45

2 stops17h 12m

Shannon

Sun 15/3

20:05-19:29

2 stops28h 24m

€455

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Fri 27/3

18:57-19:35

2 stops43h 38m

Shannon

Sat 4/4

17:30-17:13

2 stops29h 43m

€476

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sat 2/5

10:14-10:15

2 stops18h 01m

Shannon

Thu 7/5

12:30-16:57

2 stops34h 27m

€482

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 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 cheapest airline that flies from Lambert-St Louis to Shannon?

British Airways, American Airlines, and United Airlines are the most popular carriers operating from Lambert-St Louis to Shannon

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

14h 10m

Direct flights

None
The fastest flight from St. Louis to Shannon, Clare takes 14h 10m
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

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

    Shannon is 6155.2 km away from Lambert-St Louis. 14h 10m 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
Adare
Killaloe
Lahinch
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.

An easier way to manage your Shannon, Clare trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 21/2
Sat 28/2
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland