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Cheap flights from Illinois to Shannon from $317

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Shannon departing on 3/8. 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

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Find the cheapest flights from Illinois to Shannon

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:35 pm - 10:15 am
ORD
-
SNN
12h 40m
1 stop
United Airlines Logo
12:30 pm - 6:21 pm
SNN
-
ORD
11h 51m
1 stop
$490United Airlines
Sun, Apr 19 - Fri, May 8
United Airlines Logo
11:15 am - 10:15 am
ORD
-
SNN
17h 00m
2 stops
United Airlines Logo
12:30 pm - 6:21 pm
SNN
-
ORD
11h 51m
1 stop
$494United Airlines
Sun, Apr 19 - Tue, May 5
British Airways Logo
1:34 pm - 11:30 am
STL
-
SNN
16h 56m
2 stops
British Airways Logo
7:50 am - 10:50 pm
SNN
-
STL
20h 00m
2 stops
$684British Airways
Thu, Mar 19 - Thu, Mar 26
Air Canada Logo
4:05 pm - 11:30 am
STL
-
SNN
37h 25m
2 stops
Air Canada Logo
7:50 am - 3:29 pm
SNN
-
STL
37h 39m
2 stops
$689Air Canada
Wed, Feb 25 - Sun, Mar 1
Air Canada Logo
4:05 pm - 11:30 am
STL
-
SNN
13h 25m
2 stops
Air Canada Logo
5:30 pm - 3:29 pm
SNN
-
STL
51h 59m
2 stops
$690Air Canada
Wed, Feb 25 - Sun, Mar 1
Multiple Airlines Logo
7:30 am - 6:00 am
MDW
-
SNN
16h 30m
1 stop
Multiple Airlines Logo
9:15 pm - 1:00 pm
SNN
-
MDW
45h 45m
2 stops
$731Multiple Airlines
Wed, Apr 29 - Fri, May 8
British Airways Logo
1:34 pm - 11:30 am
STL
-
SNN
16h 56m
2 stops
British Airways Logo
5:25 pm - 5:13 pm
SNN
-
STL
29h 48m
2 stops
$735British Airways
Wed, Mar 25 - Sat, Apr 4
KLM Logo
4:26 pm - 11:10 am
STL
-
SNN
12h 44m
1 stop
KLM Logo
1:05 pm - 4:40 pm
SNN
-
STL
33h 35m
1 stop
$750KLM
Sat, May 30 - Sun, Jun 14
KLM Logo
1:27 pm - 11:10 am
STL
-
SNN
15h 43m
2 stops
KLM Logo
1:05 pm - 4:40 pm
SNN
-
STL
33h 35m
1 stop
$755KLM
Sat, May 30 - Sun, Jun 14
Multiple Airlines Logo
8:53 am - 3:50 pm
STL
-
SNN
24h 57m
2 stops
Multiple Airlines Logo
9:15 pm - 7:30 pm
SNN
-
STL
28h 15m
1 stop
$762Multiple Airlines
Fri, May 1 - Mon, May 11

Lufthansa flights from Illinois to Shannon, Clare

Our best Lufthansa deals on Illinois to Shannon, Clare flight tickets
Lufthansa
May 1
ORD4:05 pmChicago O'Hare Intl
13h 10m
1 stop
SNN11:15 amShannon
May 8
SNN12:30 pmShannon
17h 07m
1 stop
ORD11:37 pmChicago O'Hare Intl
$577
Lufthansa
Apr 24
ORD4:05 pmChicago O'Hare Intl
13h 10m
1 stop
SNN11:15 amShannon
May 2
SNN12:00 pmShannon
13h 55m
1 stop
ORD7:55 pmChicago O'Hare Intl
$582
Lufthansa
May 1
ORD4:05 pmChicago O'Hare Intl
13h 10m
1 stop
SNN11:15 amShannon
May 9
SNN12:00 pmShannon
13h 55m
1 stop
ORD7:55 pmChicago O'Hare Intl
$584

United Airlines flights from Illinois to Shannon, Clare

Our best United Airlines deals on Illinois to Shannon, Clare flight tickets
United Airlines
Apr 19
ORD3:35 pmChicago O'Hare Intl
12h 40m
1 stop
SNN10:15 amShannon
May 8
SNN12:30 pmShannon
11h 51m
1 stop
ORD6:21 pmChicago O'Hare Intl
$490
United Airlines
Apr 19
ORD11:15 amChicago O'Hare Intl
17h 00m
2 stops
SNN10:15 amShannon
May 5
SNN12:30 pmShannon
11h 51m
1 stop
ORD6:21 pmChicago O'Hare Intl
$494
United Airlines
Apr 21
ORD4:30 pmChicago O'Hare Intl
11h 45m
1 stop
SNN10:15 amShannon
Apr 30
SNN12:30 pmShannon
14h 57m
2 stops
ORD9:27 pmChicago O'Hare Intl
$495

momondo Fare Finder

 
Customize your flight search to find flights from Illinois 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 832,500 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Illinois to Shannon, Clare that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sun 4/19

3:35 pm-10:15 am

1 stop12h 40m

Shannon

Fri 5/8

12:30 pm-6:21 pm

1 stop11h 51m

$490

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sun 4/19

11:15 am-10:15 am

2 stops17h 00m

Shannon

Tue 5/5

12:30 pm-6:21 pm

1 stop11h 51m

$494

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 3/19

1:34 pm-11:30 am

2 stops16h 56m

Shannon

Thu 3/26

7:50 am-10:50 pm

2 stops20h 00m

$684

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 2/25

4:05 pm-11:30 am

2 stops37h 25m

Shannon

Sun 3/1

7:50 am-3:29 pm

2 stops37h 39m

$689

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 2/25

4:05 pm-11:30 am

2 stops13h 25m

Shannon

Sun 3/1

5:30 pm-3:29 pm

2 stops51h 59m

$690

ChicagoShannon

MDW - SNN

MDWSNN

Chicago Midway

Wed 4/29

7:30 am-6:00 am

1 stop16h 30m

Shannon

Fri 5/8

9:15 pm-1:00 pm

2 stops45h 45m

$731

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 3/25

1:34 pm-11:30 am

2 stops16h 56m

Shannon

Sat 4/4

5:25 pm-5:13 pm

2 stops29h 48m

$735

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sat 5/30

4:26 pm-11:10 am

1 stop12h 44m

Shannon

Sun 6/14

1:05 pm-4:40 pm

1 stop33h 35m

$750

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sat 5/30

1:27 pm-11:10 am

2 stops15h 43m

Shannon

Sun 6/14

1:05 pm-4:40 pm

1 stop33h 35m

$755

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Fri 5/1

8:53 am-3:50 pm

2 stops24h 57m

Shannon

Mon 5/11

9:15 pm-7:30 pm

1 stop28h 15m

$762

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Shannon from

How to get the cheapest flight ticket from Illinois 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 day to depart on your flight to Shannon, Clare?

The cheapest day to depart from Illinois to Shannon, Clare is on a Monday when prices can be found for as low as $726. The most expensive day to fly to Shannon, Clare is Friday, with ticket prices averaging around $923.

What is the cheapest Illinois to Shannon flight route?

Fly from Chicago O'Hare Intl to Shannon for the best Illinois - Shannon flight prices

How far in advance should I book a flight to Shannon, Clare?

You are more likely to see cheaper flights to Shannon, Clare from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Shannon, Clare for around $831 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Shannon, Clare from Illinois for as low as $701 on momondo.

What cabin class options are available on Illinois to Shannon flights?

There are 3 cabin classes available to choose from on Illinois to Shannon flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Shannon, Clare flights?

You could potentially save up to 12% on your flight if you consider stops on a Illinois to Shannon, Clare flight.

Cheap Illinois to Shannon, Clare flight deals and tips

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

Best Price Found

$514

Fastest flight time

7h 25m

Direct flights

Every day

Airports in Shannon, Clare

1 airport
The best one-way flight to Shannon, Clare from Illinois in the past 72 hours is $514. The best round-trip flight deal from Illinois to Shannon, Clare found on momondo in the last 72 hours is $524.
The fastest flight from Illinois to Shannon, Clare takes 7h 25m
Direct flights go from Illinois to Shannon, Clare every day.
There is 1 airport in Shannon, Clare. From Illinois there are direct flights to Shannon (SNN).
Search flight deals

  • When did momondo last update prices for flights from Illinois to Shannon Airport?

    Prices for flights from Illinois to Shannon Airport refresh daily.

  • How many operators does momondo search for flights from Illinois to Shannon Airport?

  • How old do you have to be to fly from Illinois to Shannon Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Shannon Airport.

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

    The required travel and health documents for your Shannon Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Shannon Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Illinois to Shannon, Clare?

Best airlines flying from Illinois to Shannon, Clare

Compare and see reviews for airlines that fly from Illinois to Shannon, Clare with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $469Free CancellationRating
7.2
11,216 reviews
Search American Airlines flights
United AirlinesPriceFrom $584Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights

Traveling to a place near Shannon?

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

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Shannon?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Shannon for you.

Can I find flights from Illinois to Shannon with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to Shannon flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to Shannon?

momondo helps you find the best flight between Illinois and Shannon by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Illinois to Shannon flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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