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Illinois

$418+ Cheap flights from Shannon (SNN) to Illinois

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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Shannon to Illinois

Keep the following information in mind while searching for Shannon to Illinois flight deals. Data was last updated June 12, 2025.

Round-trip from

$462
(United Airlines)

One-way from

$418
(Gurufare)

Good round-trip deal

$751 or less

Good one-way deal

$1,239 or less
From Shannon to Illinois
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One-way flight from Shannon to Illinois
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Price to beat on a one-way flight from Shannon to Illinois.
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Find flight deals from Shannon to Illinois

Cheapest flights from Shannon to Illinois
Explore the most affordable flight options available from Shannon to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 9/59:30 amSNN - ORD
Nonstop8h 15mUnited Airlines
Mon 9/1512:50 pmORD - SNN
2 stops15h 25mUnited Airlines
Deal found 6/10$462
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 6/197:40 amSNN - ORD
2 stops31h 13mAmerican Airlines
Mon 6/2311:15 amORD - SNN
2 stops18h 05mAmerican Airlines
Deal found 6/10$613
This Aer Lingus deal was found by Cheapflights users on 6/11. 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:40 amSNN - ORD
1 stop16h 35mMultiple Airlines
Tue 10/283:14 pmORD - SNN
1 stop10h 06mMultiple Airlines
Deal found 6/11$629
This Delta deal was found by Cheapflights users on 6/12. 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.
Thu 7/101:05 pmSNN - ORD
1 stop14h 38mDelta
Sat 7/196:24 pmORD - SNN
1 stop10h 46mDelta
Deal found 6/12$643
This KLM deal was found by Cheapflights users on 6/12. 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 7/81:05 pmSNN - ORD
2 stops17h 04mKLM
Thu 7/171:30 pmORD - SNN
1 stop15h 40mKLM
Deal found 6/12$660
This Air France deal was found by Cheapflights users on 6/11. 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 7/261:05 pmSNN - ORD
1 stop14h 38mAir France
Sat 8/211:01 amORD - SNN
2 stops18h 09mAir France
Deal found 6/11$678
This Expedia deal was found by Cheapflights users on 6/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:05 pmSNN - ORD
2 stops27h 34mAir Canada
Sun 11/24:50 pmORD - SNN
2 stops17h 55mAir Canada
Deal found 6/11$688
This TravelUp deal was found by Cheapflights users on 6/11. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/139:15 pmSNN - ORD
1 stop20h 40mBritish Airways
Sat 7/268:15 pmORD - SNN
1 stop18h 20mBritish Airways
Deal found 6/11$714
This SmartFares deal was found by Cheapflights users on 6/10. 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.
Sun 7/139:15 pmSNN - ORD
2 stops22h 45mAer Lingus
Sat 7/264:55 pmORD - SNN
1 stop12h 25mAer Lingus
Deal found 6/10$871
This Delta deal was found by Cheapflights users on 6/10. 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 6/101:05 pmSNN - MDW
2 stops28h 54mDelta
Sat 6/141:09 pmMDW - SNN
2 stops16h 01mDelta
Deal found 6/10$1,051
This TravelUp deal was found by Cheapflights users on 6/10. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/231:05 pmSNN - MDW
2 stops32h 36mAir France
Wed 6/2510:26 amMDW - SNN
2 stops18h 44mAir France
Deal found 6/10$1,754
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Thu 6/197:40 amSNN - MDW
3 stops31h 05mMultiple Airlines
Mon 6/239:21 amMDW - SNN
3 stops24h 49mMultiple Airlines
Deal found 6/10$1,766

Cheapflights Fare Finder

Customize your flight search to find flights from Shannon to Illinois 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 June 12, 2025.
Use the filters below to find and compare flights from Shannon to Illinois that are best for you.

Fly from

Shannon

Fly to

Illinois

Route

Depart

Return

Price

ShannonChicago

SNN - ORD

SNNORD

Shannon

Fri 9/5

9:30 am-11:45 am

Nonstop8h 15m

Chicago O'Hare Intl

Mon 9/15

6:00 pm-7:30 am

Nonstop7h 30m

$462

ShannonChicago

SNN - ORD

SNNORD

Shannon

Thu 10/30

2:45 pm-10:14 am

1 stop24h 29m

Chicago O'Hare Intl

Mon 11/3

6:25 am-4:45 pm

2 stops28h 20m

$614

ShannonChicago

SNN - ORD

SNNORD

Shannon

Thu 10/23

7:40 am-6:15 pm

1 stop16h 35m

Chicago O'Hare Intl

Tue 10/28

3:14 pm-6:20 am

1 stop10h 06m

$629

ShannonChicago

SNN - ORD

SNNORD

Shannon

Sat 7/26

1:05 pm-9:43 pm

1 stop14h 38m

Chicago O'Hare Intl

Sat 8/2

11:01 am-11:10 am

2 stops18h 09m

$678

ShannonChicago

SNN - ORD

SNNORD

Shannon

Thu 10/30

8:05 pm-6:39 pm

2 stops27h 34m

Chicago O'Hare Intl

Sun 11/2

4:50 pm-4:45 pm

2 stops17h 55m

$688

ShannonChicago

SNN - ORD

SNNORD

Shannon

Sun 7/13

9:15 pm-11:55 am

1 stop20h 40m

Chicago O'Hare Intl

Sat 7/26

8:15 pm-8:35 pm

1 stop18h 20m

$714

ShannonChicago

SNN - MDW

SNNMDW

Shannon

Thu 8/7

1:05 pm-9:45 am

2 stops26h 40m

Chicago Midway

Tue 8/12

1:08 pm-11:10 am

2 stops16h 02m

$720

ShannonChicago

SNN - ORD

SNNORD

Shannon

Sun 7/13

9:15 pm-2:00 pm

2 stops22h 45m

Chicago O'Hare Intl

Sat 7/26

4:55 pm-11:20 am

1 stop12h 25m

$871

ShannonChicago

SNN - MDW

SNNMDW

Shannon

Thu 7/10

7:55 pm-4:24 pm

3 stops26h 29m

Chicago Midway

Sat 7/19

9:40 am-2:55 pm

3 stops23h 15m

$1,164

ShannonChicago

SNN - MDW

SNNMDW

Shannon

Mon 6/23

1:05 pm-3:41 pm

2 stops32h 36m

Chicago Midway

Wed 6/25

10:26 am-11:10 am

2 stops18h 44m

$1,754

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 17 results
1
2

Best time to book a flight from Shannon to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Shannon 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 Shannon to Illinois

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

Find hourly flight availability from Shannon to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

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

Weekly flight availability from Shannon, Clare to Illinois

Explore weekly flight availability from Shannon to Illinois. 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 June 12, 2025.

The most flights from SNN to USIL 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).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown Delta, KLM and Air France from Shannon to Illinois. 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
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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 Shannon to Illinois. 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 from for flights from Shannon to Illinois?

    For a flight from Shannon to Illinois, you will be flying from Shannon. Shannon (SNN) is just 2.1 mi from the center of the city.

  • What are the cheapest airlines to fly from Shannon, Clare to Illinois one-way?

    The cheapest airlines for a one-way flight from Shannon, Clare to Illinois are Aer Lingus ($418), British Airways ($622), and American Airlines ($666).

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

    While on average a flight from Shannon, Clare to Illinois is generally $1,098, our data shows the cheapest flight currently is $692. When looking at the most popular route, (Shannon - Chicago O'Hare Intl), you can expect to pay $461 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Shannon to Illinois 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 Shannon, Clare to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Shannon, Clare to Illinois (average of $245). Flying from Shannon, Clare to Illinois in March is currently the most expensive (average of $321). 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.

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