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Shannon

$387+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SNN
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Illinois to Shannon

Keep the following information in mind while searching for Illinois to Shannon flight deals. Data was last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$518
(American Airlines)

One-way from

$387
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$630

Good round-trip deal

$733 or less

Good one-way deal

$493 or less
Provider with most accurate pricing for Chicago (CHI)-Shannon flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Shannon flights.
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From Illinois to Shannon
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One-way flight from Illinois to Shannon
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Highest demand for flights based on searches. 21% potential increase in price ($224 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Illinois to Shannon.
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Price to beat on a one-way flight from Illinois to Shannon.
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Find 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 febrero 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/20. 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.
lun. 3/247:30 pmORD - SNN
1 stop18h 55mAmerican Airlines
lun. 3/319:15 pmSNN - ORD
1 stop23h 30mAmerican Airlines
Deal found 2/20$568
This United deal was found by Cheapflights users on 2/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/56:05 pmORD - SNN
Nonstop7h 25mUnited Airlines
mié. 8/209:30 amSNN - ORD
Nonstop8h 15mUnited Airlines
Deal found 2/19$721
This SmartFares deal was found by Cheapflights users on 2/20. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/244:00 pmORD - SNN
2 stops14h 30mAir Canada
lun. 3/319:15 pmSNN - ORD
2 stops23h 35mAir Canada
Deal found 2/20$735
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/65:10 pmORD - SNN
2 stops16h 30mMultiple Airlines
dom. 4/133:10 pmSNN - ORD
2 stops29h 00mMultiple Airlines
Deal found 2/20$744
This American Airlines deal was found by Cheapflights users on 2/18. 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.
mié. 5/71:59 pmSTL - SNN
2 stops15h 21mAmerican Airlines
jue. 5/227:40 amSNN - STL
2 stops16h 27mAmerican Airlines
Deal found 2/18$753
This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/244:55 pmORD - SNN
2 stops13h 35mAer Lingus
mar. 4/19:15 pmSNN - ORD
2 stops22h 45mAer Lingus
Deal found 2/20$753
This United deal was found by Cheapflights users on 2/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/26:30 amSTL - SNN
1 stop19h 00mUnited Airlines
mié. 6/119:30 amSNN - STL
1 stop11h 23mUnited Airlines
Deal found 2/19$803
This Ovago deal was found by Cheapflights users on 2/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/247:30 pmORD - SNN
1 stop11h 00mBritish Airways
mar. 4/17:40 amSNN - ORD
1 stop16h 35mBritish Airways
Deal found 2/20$905
This Gotogate deal was found by Cheapflights users on 2/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/71:30 pmSTL - SNN
2 stops15h 50mMultiple Airlines
jue. 5/2212:30 pmSNN - STL
1 stop14h 55mMultiple Airlines
Deal found 2/18$925
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/163:30 pmSTL - SNN
2 stops18h 40mAir Canada
mié. 4/309:15 pmSNN - STL
2 stops28h 46mAir Canada
Deal found 2/19$995
This Aeromexico deal was found by Cheapflights users on 2/20. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/221:16 pmORD - SNN
2 stops15h 54mAir France
jue. 7/31:05 pmSNN - ORD
2 stops33h 29mAir France
Deal found 2/20$1,032
This Gurufare deal was found by Cheapflights users on 2/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1712:24 pmSTL - SNN
1 stop15h 51mLufthansa
mié. 10/812:30 pmSNN - STL
1 stop14h 40mLufthansa
Deal found 2/20$1,081

Find flights from Illinois to Shannon within your budget

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 febrero 20, 2025.

Fly from

Illinois

Fly to

Shannon

Route

Depart

Return

Price

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

lun. 3/24

7:30 pm-7:25 pm

1 stop18h 55m

Shannon

lun. 3/31

9:15 pm-2:45 pm

1 stop23h 30m

$568

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

lun. 3/24

4:00 pm-11:30 am

2 stops14h 30m

Shannon

lun. 3/31

9:15 pm-2:50 pm

2 stops23h 35m

$735

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

dom. 4/6

5:10 pm-3:40 pm

2 stops16h 30m

Shannon

dom. 4/13

3:10 pm-2:10 pm

2 stops29h 00m

$744

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

lun. 3/24

4:55 pm-11:30 am

2 stops13h 35m

Shannon

mar. 4/1

9:15 pm-2:00 pm

2 stops22h 45m

$753

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

mié. 5/7

1:59 pm-11:20 am

2 stops15h 21m

Shannon

jue. 5/22

7:40 am-6:07 pm

2 stops16h 27m

$753

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

mar. 5/20

8:50 am-10:15 am

2 stops19h 25m

Shannon

jue. 5/29

9:30 am-11:45 am

Nonstop8h 15m

$785

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

lun. 6/2

6:30 am-7:30 am

1 stop19h 00m

Shannon

mié. 6/11

9:30 am-2:53 pm

1 stop11h 23m

$803

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

lun. 6/2

6:00 am-11:10 am

2 stops23h 10m

Shannon

mié. 6/11

1:05 pm-10:38 am

2 stops27h 33m

$808

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

lun. 3/24

7:30 pm-11:30 am

1 stop11h 00m

Shannon

mar. 4/1

7:40 am-6:15 pm

1 stop16h 35m

$905

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

mié. 5/7

1:30 pm-11:20 am

2 stops15h 50m

Shannon

jue. 5/22

12:30 pm-9:25 pm

1 stop14h 55m

$925

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 15 results
1
2

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.

Travel insights for flights from Illinois to Shannon

Get recent, data-driven insights about flights from Illinois to Shannon including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Illinois to Shannon, Clare (average of $533). Flying from Illinois to Shannon, Clare in June is currently the most expensive (average of $1,007). 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.

What is the cheapest time of day to fly from IL to SNN?

Find hourly flight availability from Illinois to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Shannon, Clare as you normally would.

Rainfall in Shannon by month

Plan your trip to Shannon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Shannon, Clare ranges from 2.3 - 4.1 inches per month. October is typically the wettest month, when rainfall can reach 4.1 in. April is typically the driest time to visit Shannon, Clare when rainfall is around 2.3 in.

Temperature in Shannon by month

Plan your trip to Shannon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Shannon, Clare, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Shannon. Reviews last updated febrero 20, 2025.
Read reviews from past customers who have flown Delta, Air France and United Airlines from Illinois to Shannon. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,765 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aer Lingus
7.0
Good
1,070 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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 $672, our data shows the cheapest flight currently is $493. When looking at the most popular route, (Chicago O'Hare Intl - Shannon), you can expect to pay $569 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, February is the cheapest month in which you can book a flight from Illinois to Shannon, Clare (average of $533). Flying from Illinois to Shannon, Clare in June is currently the most expensive (average of $1,007). 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

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Alternative routes for Illinois to Shannon

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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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$509Average$714FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$526Average$860FlexibilityNo cancel feeOn-time69%
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