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Cheap flights from Sudbury, ON to Illinois from C$ 677

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
YSB — ORD
16 Nov — 23 Nov1
1 adult
1 adult, Economy

Find flight deals from Sudbury to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Sudbury to Illinois
Explore the most affordable flight options available from Sudbury to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.

Wed 12/119:45 a.m.YSB - ORD
1 stop6h 25mAir Canada
Wed 19/1110:00 a.m.ORD - YSB
1 stop4h 39mAir Canada
Deal found 16/10C$ 709
Tue 28/1010:35 a.m.YSB - ORD
1 stop5h 35mUnited Airlines
Sun 2/119:10 p.m.ORD - YSB
2 stops17h 29mUnited Airlines
Deal found 16/10C$ 1,011
Tue 28/101:15 p.m.YSB - ORD
2 stops33h 24mMultiple Airlines
Sun 2/115:10 a.m.ORD - YSB
3 stops30h 25mMultiple Airlines
Deal found 16/10C$ 1,434

Cheap flight deals from Sudbury to Illinois

Keep the following information in mind while searching for Sudbury to Illinois flight deals. Data was last updated 17 October 2025.

Round-trip from

C$ 677
Air Canada
  • Air Canada
  • 8/4-11/4
  • 3 total stops
  • 14h 19m total
  • Sudbury to Illinois
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Sudbury 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 629,999 searches. Data last updated 17 October 2025.
Use the filters below to find and compare flights from Sudbury to Illinois that are best for you.

Fly from

Sudbury

Fly to

Illinois

Route

Depart

Return

Price

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Wed 8/4

10:35 a.m.-7:17 p.m.

2 stops9h 42m

Chicago O'Hare Intl

Sat 11/4

7:15 a.m.-3:37 p.m.

2 stops7h 22m

C$ 677

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Wed 12/11

9:45 a.m.-3:10 p.m.

1 stop6h 25m

Chicago O'Hare Intl

Wed 19/11

10:00 a.m.-3:39 p.m.

1 stop4h 39m

C$ 709

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Tue 28/10

10:35 a.m.-3:10 p.m.

1 stop5h 35m

Chicago O'Hare Intl

Sun 2/11

9:10 p.m.-3:39 p.m.

2 stops17h 29m

C$ 1,011

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/10

Best time to book a flight from Sudbury to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Sudbury 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 Sudbury to Illinois
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Sudbury 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 Sudbury to Illinois?

    Most people fly from Sudbury (YSB) if they book a flight from Sudbury to Illinois. Sudbury is conveniently located just 20.9 km from Sudbury’s city centre.

  • How long is the flight from Sudbury, Ontario to Illinois?

    For as low as C$ 677, Air Canada can have you in Illinois from Sudbury, Ontario in 9h 42m. The distance from Sudbury, Ontario to Illinois is about 764 km.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sudbury 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.

See more FAQs

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