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Cheap flights from Sudbury, ON to Illinois from C$ 353

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
YSB — ORD
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Find flight deals from Sudbury to Illinois

One-way flights from Sudbury to Illinois
Search for one-way flight options from Sudbury to Illinois. Find affordable one-way fares based on user searches. Data last updated 11 September 2025.

Thu 6/1110:35 a.m.YSB - ORD
1 stop5h 35mAir Canada
Deal found 10/9C$ 353
Thu 6/115:40 a.m.YSB - ORD
2 stops12h 13mUnited Airlines
Deal found 10/9C$ 399
Fri 7/111:15 p.m.YSB - ORD
3 stops21h 29mMultiple Airlines
Deal found 10/9C$ 463
Thu 6/111:15 p.m.YSB - ORD
3 stops28h 49mMultiple Airlines
Deal found 10/9C$ 471

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 11 September 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

Fri 7/11

5:40 a.m.-9:13 a.m.

1 stop4h 33m

C$ 353

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Thu 6/11

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

1 stop5h 35m

C$ 353

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Thu 6/11

5:40 a.m.-4:53 p.m.

2 stops12h 13m

C$ 399

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Fri 7/11

4:15 p.m.-11:43 p.m.

2 stops8h 28m

C$ 399

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Fri 7/11

1:15 p.m.-9:44 a.m.

3 stops21h 29m

C$ 463

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Thu 6/11

1:15 p.m.-5:04 p.m.

3 stops28h 49m

C$ 471

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

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.

  • 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.

  • What is the cheapest month to book a flight from Sudbury, Ontario to Illinois?

    Currently, January is the cheapest month in which you can book a flight from Sudbury, Ontario to Illinois (average of C$ 261). Flying from Sudbury, Ontario to Illinois in March is currently the most expensive (average of C$ 349). 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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Can Cheapflights find flights from Sudbury to Illinois with no change fees?

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Can Cheapflights notify me if prices for flights from Sudbury to Illinois become cheaper?

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