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Shannon

$282+ Cheap flights from Illinois to Shannon (SNN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SNN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Illinois to Shannon

Cheapest flights from Illinois to Shannon
Explore the most affordable flight options available from Illinois to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/78:35 pm
ORD
-
SNN
1 stop18h 00m
American Airlines
Fri 4/177:30 am
SNN
-
ORD
1 stop13h 30m
American Airlines
Deal found 1/26$471
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:00 pm
ORD
-
SNN
1 stop20h 35m
American Airlines
Wed 5/69:15 pm
SNN
-
ORD
1 stop21h 15m
American Airlines
Deal found 1/27$472
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:05 pm
ORD
-
SNN
Nonstop7h 25m
United Airlines
Tue 8/259:30 am
SNN
-
ORD
Nonstop8h 20m
United Airlines
Deal found 1/27$475
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:45 pm
ORD
-
SNN
1 stop17h 50m
American Airlines
Wed 8/267:30 am
SNN
-
ORD
2 stops17h 38m
American Airlines
Deal found 1/27$482
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:00 pm
ORD
-
SNN
2 stops13h 15m
United Airlines
Tue 8/259:30 am
SNN
-
ORD
Nonstop8h 20m
United Airlines
Deal found 1/27$484
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:30 pm
ORD
-
SNN
1 stop11h 45m
United Airlines
Fri 4/1712:30 pm
SNN
-
ORD
1 stop11h 55m
United Airlines
Deal found 1/27$490
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:00 pm
ORD
-
SNN
2 stops15h 15m
United Airlines
Tue 5/512:30 pm
SNN
-
ORD
2 stops14h 57m
United Airlines
Deal found 1/27$494
This KAYAK deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/89:00 am
ORD
-
SNN
1 stop19h 15m
Lufthansa
Fri 4/1712:30 pm
SNN
-
ORD
1 stop11h 55m
Lufthansa
Deal found 1/27$510
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:15 pm
ORD
-
SNN
1 stop17h 20m
American Airlines
Tue 11/37:50 am
SNN
-
ORD
1 stop12h 00m
American Airlines
Deal found 1/27$511
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:35 pm
ORD
-
SNN
1 stop12h 40m
United Airlines
Fri 5/112:30 pm
SNN
-
ORD
1 stop11h 51m
United Airlines
Deal found 1/27$515
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:45 pm
STL
-
SNN
2 stops14h 35m
American Airlines
Tue 9/227:30 am
SNN
-
STL
2 stops18h 33m
American Airlines
Deal found 1/27$584
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:00 am
MDW
-
SNN
2 stops23h 10m
Delta
Wed 8/261:05 pm
SNN
-
MDW
2 stops25h 37m
Delta
Deal found 1/27$592

Find flight deals from Illinois to Shannon

Keep the following information in mind while searching for Illinois to Shannon flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$471
(American Airlines)

One-way from

$282
(Kiwi.com)

Popular in

January

Cheapest in

September

Average price

$1,065

Good round-trip deal

$540 or less
Provider with most accurate pricing for Chicago (CHI)-Shannon flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Shannon flights.
Search Deals
From Illinois to Shannon
Search Deals
One-way flight from Illinois to Shannon
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Shannon.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Shannon 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Illinois to Shannon that are best for you.

Fly from

Illinois

Fly to

Shannon

Route

Depart

Return

Price

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Mon 4/27

6:00 pm-8:35 pm

1 stop20h 35m

Shannon

Wed 5/6

9:15 pm-12:30 pm

1 stop21h 15m

$472

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Mon 4/27

3:36 pm-10:15 am

1 stop12h 39m

Shannon

Wed 5/6

12:30 pm-8:18 pm

1 stop13h 48m

$490

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 4/7

4:30 pm-10:15 am

1 stop11h 45m

Shannon

Fri 4/17

12:30 pm-6:25 pm

1 stop11h 55m

$490

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 4/7

4:30 pm-10:15 am

1 stop11h 45m

Shannon

Wed 4/15

12:30 pm-7:22 pm

2 stops12h 52m

$494

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 4/21

4:30 pm-10:15 am

1 stop11h 45m

Shannon

Fri 5/1

12:30 pm-9:27 pm

2 stops14h 57m

$494

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 4/21

1:00 pm-10:15 am

2 stops15h 15m

Shannon

Tue 5/5

12:30 pm-6:21 pm

1 stop11h 51m

$494

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Wed 4/8

1:00 pm-10:15 am

2 stops15h 15m

Shannon

Fri 4/17

12:30 pm-6:25 pm

1 stop11h 55m

$594

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 5/25

8:15 am-7:30 am

1 stop17h 15m

Shannon

Wed 6/3

9:30 am-3:46 pm

1 stop12h 16m

$612

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 5/27

9:23 am-7:30 am

1 stop16h 07m

Shannon

Thu 6/4

9:30 am-3:46 pm

1 stop12h 16m

$612

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 5/27

9:23 am-7:30 am

1 stop16h 07m

Shannon

Tue 6/2

9:30 am-6:13 pm

1 stop14h 43m

$612

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 42 results
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Best time to book a flight from Illinois to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Shannon

What is the cheapest month to book a flight from Illinois to Shannon, Clare?

Currently, January is the cheapest month in which you can book a flight from Illinois to Shannon, Clare (average of $470). Flying from Illinois to Shannon, Clare in June is currently the most expensive (average of $759). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Illinois to Shannon, Clare?

Related info for your journey

Find useful and relevant information for your journey from Illinois to Shannon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Shannon from Illinois?

    Most people fly into Shannon (SNN) if they book a flight to Shannon from Illinois. Shannon is conveniently located just 2.1 mi from Shannon’s city center.

  • How long is the flight from Illinois to Shannon, Clare?

    Departing from Illinois to Shannon, Clare will take you 12h 39m. The distance from Illinois to Shannon, Clare is about 3578 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Illinois to Shannon, Clare?

    When deciding which route to take from Illinois to Shannon, Clare consider Chicago O'Hare Intl - Shannon, Lambert-St Louis - Shannon or Chicago Midway - Shannon as they are the most popular.

  • What are the cheapest flights from Illinois to Shannon, Clare?

    While on average a flight from Illinois to Shannon, Clare is generally $772, our data shows the cheapest flight currently is $473. When looking at the most popular route, (Chicago O'Hare Intl - Shannon), you can expect to pay $490 for that flight.

  • Can I find deals for flights from Illinois to Shannon that include hotel bookings?

    Yes. In addition to deals on Illinois to Shannon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Shannon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Shannon.

  • Can I find deals for business class flights from Illinois to Shannon?

    Yes. Cheapflights offers flight deals from Illinois to Shannon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Shannon, Clare?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Shannon, Clare (average of $470). Flying from Illinois to Shannon, Clare in June is currently the most expensive (average of $759). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Ennis

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Alternative routes for Illinois to Shannon

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Illinois to Shannon

Discover the top 2 airlines that operate flights from Illinois to Shannon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$470Average$820FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$590Average$812FlexibilityNo cancel feeOn-time69%

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