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Shannon

$260+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SNN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$522
(United Airlines)

One-way from

$260
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$869

Good round-trip deal

$612 or less

Good one-way deal

$489 or less
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. 3% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/1. 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 8/56:05 pmORD - SNN
Nonstop7h 25mUnited Airlines
Wed 8/209:30 amSNN - ORD
Nonstop8h 15mUnited Airlines
Deal found 7/1$522
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Mon 8/116:15 amSTL - SNN
2 stops19h 15mUnited Airlines
Wed 8/209:30 amSNN - STL
1 stop12h 14mUnited Airlines
Deal found 7/2$528
This American Airlines deal was found by Cheapflights users on 7/3. 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 8/139:15 pmORD - SNN
1 stop17h 20mAmerican Airlines
Tue 8/199:15 pmSNN - ORD
1 stop20h 40mAmerican Airlines
Deal found 7/3$536
This American Airlines deal was found by Cheapflights users on 7/1. 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 9/152:11 pmSTL - SNN
2 stops15h 09mAmerican Airlines
Wed 9/247:40 amSNN - STL
2 stops18h 35mAmerican Airlines
Deal found 7/1$560
This Air France deal was found by Cheapflights users on 7/1. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/156:20 pmORD - SNN
1 stop10h 50mAir France
Fri 8/221:05 pmSNN - ORD
1 stop14h 48mAir France
Deal found 7/1$580
This KLM deal was found by Cheapflights users on 7/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/151:30 pmORD - SNN
1 stop15h 40mMultiple Airlines
Tue 7/291:05 pmSNN - ORD
1 stop14h 38mMultiple Airlines
Deal found 7/1$597
This Delta deal was found by Cheapflights users on 7/3. 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.
Sun 8/106:24 pmORD - SNN
1 stop10h 46mDelta
Tue 8/191:05 pmSNN - ORD
1 stop14h 48mDelta
Deal found 7/3$611
This Delta deal was found by Cheapflights users on 7/2. 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.
Mon 8/113:40 pmSTL - SNN
2 stops13h 30mDelta
Wed 8/201:05 pmSNN - STL
2 stops14h 57mDelta
Deal found 7/2$622
This KLM deal was found by Cheapflights users on 7/3. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/281:30 pmORD - SNN
1 stop15h 40mKLM
Thu 8/71:05 pmSNN - ORD
2 stops17h 04mKLM
Deal found 7/3$622
This lastminute.com deal was found by Cheapflights users on 7/3. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/107:07 pmMDW - SNN
2 stops34h 03mAir France
Tue 8/191:05 pmSNN - MDW
2 stops35h 32mAir France
Deal found 7/3$646
This Air France deal was found by Cheapflights users on 7/2. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/161:08 pmMDW - SNN
2 stops16h 02mMultiple Airlines
Sat 8/231:05 pmSNN - MDW
2 stops38h 44mMultiple Airlines
Deal found 7/2$786
This Air Canada deal was found by Cheapflights users on 7/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/91:30 pmSTL - SNN
2 stops25h 05mAir Canada
Thu 10/239:15 pmSNN - STL
2 stops24h 03mAir Canada
Deal found 7/1$807

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 July 3, 2025.
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

Tue 8/5

6:05 pm-7:30 am

Nonstop7h 25m

Shannon

Wed 8/20

9:30 am-11:45 am

Nonstop8h 15m

$522

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 8/11

1:20 pm-7:30 am

1 stop12h 10m

Shannon

Wed 8/20

9:30 am-3:44 pm

1 stop12h 14m

$528

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Wed 8/13

9:15 pm-8:35 pm

1 stop17h 20m

Shannon

Tue 8/19

9:15 pm-11:55 am

1 stop20h 40m

$536

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 9/15

2:11 pm-11:20 am

2 stops15h 09m

Shannon

Wed 9/24

7:40 am-8:15 pm

2 stops18h 35m

$560

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Fri 8/15

6:20 pm-11:10 am

1 stop10h 50m

Shannon

Fri 8/22

1:05 pm-9:53 pm

1 stop14h 48m

$580

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 7/15

1:30 pm-11:10 am

1 stop15h 40m

Shannon

Tue 7/29

1:05 pm-9:43 pm

1 stop14h 38m

$597

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sun 8/10

11:01 am-11:10 am

2 stops18h 09m

Shannon

Tue 8/19

1:05 pm-10:04 am

2 stops26h 59m

$613

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Mon 7/28

1:30 pm-11:10 am

1 stop15h 40m

Shannon

Thu 8/7

1:05 pm-12:09 am

2 stops17h 04m

$622

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 8/11

3:40 pm-11:10 am

2 stops13h 30m

Shannon

Wed 8/20

1:05 pm-10:02 pm

2 stops14h 57m

$622

ChicagoShannon

MDW - SNN

MDWSNN

Chicago Midway

Sun 8/10

7:07 pm-11:10 am

2 stops34h 03m

Shannon

Tue 8/19

1:05 pm-6:37 pm

2 stops35h 32m

$646

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 24 results
1
2
3

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, 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 $938). 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 July 3, 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.

Weekly flight availability from Illinois to Shannon, Clare

Explore weekly flight availability from Illinois to Shannon. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

The most flights from USIL to SNN are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 July 3, 2025.
Read through reviews of airlines operating flights from Illinois to Shannon, such as Delta, KLM, and Air France. 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
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.3
Good
2,916 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 cheapest airlines to fly from Illinois to Shannon, Clare one-way?

    For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as $356. Users have also found prices from $438 and $439 on American Airlines and United Airlines, respectively.

  • 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, Chicago Midway - Shannon or Lambert-St Louis - 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 $595, our data shows the cheapest flight currently is $449. When looking at the most popular route, (Chicago O'Hare Intl - Shannon), you can expect to pay $521 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 $938). 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 Illinois?

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$489Average$748FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$530Average$841FlexibilityNo cancel feeOn-time69%

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