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Cheap flights from Illinois to Shannon from $291

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 4/21. 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

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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
6:05 pm - 7:30 am
ORD
-
SNN
7h 25mnonstop
United Airlines Logo
9:30 am - 11:50 am
SNN
-
ORD
8h 20mnonstop
$643United Airlines
Tue, Aug 11 - Wed, Aug 26
United Airlines Logo
6:05 pm - 7:30 am
ORD
-
SNN
7h 25mnonstop
United Airlines Logo
9:30 am - 11:50 am
SNN
-
ORD
8h 20mnonstop
$644United Airlines
Tue, Aug 11 - Wed, Aug 26
United Airlines Logo
3:55 pm - 10:15 am
ORD
-
SNN
12h 20m
1 stop
United Airlines Logo
9:30 am - 11:50 am
SNN
-
ORD
8h 20mnonstop
$648United Airlines
Sat, Aug 15 - Sat, Aug 29
Lufthansa Logo
4:05 pm - 10:10 am
ORD
-
SNN
12h 05m
1 stop
Lufthansa Logo
10:55 am - 7:55 pm
SNN
-
ORD
15h 00m
1 stop
$650Lufthansa
Wed, Sep 2 - Thu, Sep 10
KLM Logo
4:13 pm - 11:10 am
STL
-
SNN
12h 57m
1 stop
KLM Logo
1:05 pm - 11:37 pm
SNN
-
STL
16h 32m
2 stops
$662KLM
Sun, Aug 16 - Fri, Aug 28
KLM Logo
4:13 pm - 11:10 am
STL
-
SNN
12h 57m
1 stop
KLM Logo
1:05 pm - 2:38 pm
SNN
-
STL
31h 33m
2 stops
$663KLM
Sun, Aug 16 - Fri, Aug 28
Multiple Airlines Logo
1:00 pm - 11:10 am
MDW
-
SNN
16h 10m
2 stops
Multiple Airlines Logo
1:05 pm - 9:46 pm
SNN
-
MDW
14h 41m
2 stops
$921Multiple Airlines
Mon, Aug 10 - Fri, Aug 28
Delta Logo
1:16 pm - 11:10 am
MDW
-
SNN
15h 54m
2 stops
Delta Logo
1:05 pm - 9:46 pm
SNN
-
MDW
14h 41m
2 stops
$1,066Delta
Mon, Jul 27 - Wed, Aug 12
Multiple Airlines Logo
1:00 pm - 11:10 am
MDW
-
SNN
16h 10m
2 stops
Multiple Airlines Logo
1:05 pm - 4:27 pm
SNN
-
MDW
33h 22m
2 stops
$1,329Multiple Airlines
Wed, Aug 19 - Sun, Aug 30
Delta Logo
1:00 pm - 11:10 am
MDW
-
SNN
16h 10m
2 stops
Delta Logo
1:05 pm - 9:46 pm
SNN
-
MDW
14h 41m
2 stops
$1,446Delta
Sat, Aug 22 - Sat, Aug 29

United Airlines flights from Illinois to Shannon, Clare

Our best United Airlines deals on Illinois to Shannon, Clare flight tickets
United Airlines
Aug 11
ORD6:05 pmChicago O'Hare Intl
7h 25m
SNN7:30 amShannon
Aug 26
SNN9:30 amShannon
8h 20m
ORD11:50 amChicago O'Hare Intl
$643
United Airlines
Aug 11
ORD6:05 pmChicago O'Hare Intl
7h 25m
SNN7:30 amShannon
Aug 26
SNN9:30 amShannon
8h 20m
ORD11:50 amChicago O'Hare Intl
$644
United Airlines
Aug 15
ORD3:55 pmChicago O'Hare Intl
12h 20m
1 stop
SNN10:15 amShannon
Aug 29
SNN9:30 amShannon
8h 20m
ORD11:50 amChicago O'Hare Intl
$648

Air Canada flights from Illinois to Shannon, Clare

Our best Air Canada deals on Illinois to Shannon, Clare flight tickets
Air Canada
Aug 16
STL12:10 pmLambert-St Louis
22h 00m
2 stops
SNN4:10 pmShannon
Aug 28
SNN7:30 amShannon
19h 52m
3 stops
STL9:22 pmLambert-St Louis
$862
Air Canada
Mar 25
STL4:05 pmLambert-St Louis
19h 40m
2 stops
SNN4:45 pmShannon
Apr 4
SNN5:25 pmShannon
28h 00m
2 stops
STL3:25 pmLambert-St Louis
$956
Air Canada
Aug 18
STL12:10 pmLambert-St Louis
17h 10m
2 stops
SNN11:20 amShannon
Aug 25
SNN7:30 amShannon
23h 00m
3 stops
STL12:30 amLambert-St Louis
$962

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 March 24, 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

Cheapest round-trip
Quickest round-trip

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 8/11

6:05 pm-7:30 am

Nonstop7h 25m

Shannon

Wed 8/26

9:30 am-11:50 am

Nonstop8h 20m

$643

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 8/11

6:05 pm-7:30 am

Nonstop7h 25m

Shannon

Wed 8/26

9:30 am-11:50 am

Nonstop8h 20m

$644

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sat 8/15

3:55 pm-10:15 am

1 stop12h 20m

Shannon

Sat 8/29

9:30 am-11:50 am

Nonstop8h 20m

$648

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Wed 9/2

4:05 pm-10:10 am

1 stop12h 05m

Shannon

Thu 9/10

10:55 am-7:55 pm

1 stop15h 00m

$650

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sun 8/16

4:13 pm-11:10 am

1 stop12h 57m

Shannon

Fri 8/28

1:05 pm-11:37 pm

2 stops16h 32m

$662

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sun 8/16

4:13 pm-11:10 am

1 stop12h 57m

Shannon

Fri 8/28

1:05 pm-2:38 pm

2 stops31h 33m

$663

ChicagoShannon

MDW - SNN

MDWSNN

Chicago Midway

Mon 8/10

1:00 pm-11:10 am

2 stops16h 10m

Shannon

Fri 8/28

1:05 pm-9:46 pm

2 stops14h 41m

$921

ChicagoShannon

MDW - SNN

MDWSNN

Chicago Midway

Mon 7/27

1:16 pm-11:10 am

2 stops15h 54m

Shannon

Wed 8/12

1:05 pm-9:46 pm

2 stops14h 41m

$1,066

ChicagoShannon

MDW - SNN

MDWSNN

Chicago Midway

Wed 8/19

1:00 pm-11:10 am

2 stops16h 10m

Shannon

Sun 8/30

1:05 pm-4:27 pm

2 stops33h 22m

$1,329

ChicagoShannon

MDW - SNN

MDWSNN

Chicago Midway

Sat 8/22

1:00 pm-11:10 am

2 stops16h 10m

Shannon

Sat 8/29

1:05 pm-9:46 pm

2 stops14h 41m

$1,446

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 Wednesday when prices can be found for as low as $698. The most expensive day to fly to Shannon, Clare is Friday, with ticket prices averaging around $907.

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 $856 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 $643 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.

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

$464

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 $464. The best round-trip flight deal from Illinois to Shannon, Clare found on momondo in the last 72 hours is $763.
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
7.1
11,492 reviews
Search American Airlines flights
United AirlinesPriceFrom $580Free CancellationRating
7.4
9,469 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
Ennis
Adare
Lahinch
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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