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Cheap flights from Sudbury, ON to Illinois from C$ 406

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
YSB — ORD
11 Jul — 18 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap 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 11 June 2026.

Wed 2/123:55 p.m.
YSB
-
ORD
2 stops8h 47m
United Airlines
Thu 3/129:50 a.m.
ORD
-
YSB
1 stop4h 29m
United Airlines
Deal found 8/6C$ 750
Wed 2/123:55 p.m.
YSB
-
ORD
1 stop4h 40m
Air Canada
Thu 3/123:55 p.m.
ORD
-
YSB
2 stops16h 14m
Air Canada
Deal found 9/6C$ 806
Thu 25/68:05 p.m.
YSB
-
ORD
1 stop13h 55m
Air Canada
Sat 27/62:15 p.m.
ORD
-
YSB
1 stop4h 12m
Air Canada
Deal found 9/6C$ 983
Fri 19/62:25 p.m.
YSB
-
ORD
1 stop4h 54m
Air Canada
Sun 21/67:09 a.m.
ORD
-
YSB
1 stop5h 41m
Air Canada
Deal found 9/6C$ 1,036
Fri 19/62:25 p.m.
YSB
-
ORD
2 stops10h 05m
United Airlines
Sun 21/67:09 a.m.
ORD
-
YSB
1 stop5h 41m
United Airlines
Deal found 9/6C$ 1,043
Thu 25/68:05 p.m.
YSB
-
ORD
1 stop12h 55m
Multiple Airlines
Sat 27/61:55 p.m.
ORD
-
YSB
2 stops18h 10m
Multiple Airlines
Deal found 9/6C$ 1,047
Fri 19/62:25 p.m.
YSB
-
ORD
2 stops10h 05m
Multiple Airlines
Sun 21/61:55 p.m.
ORD
-
YSB
2 stops18h 10m
Multiple Airlines
Deal found 9/6C$ 1,139

Find flight deals from Sudbury to Illinois

Keep the following information in mind while searching for Sudbury to Illinois flight deals. Data was last updated 11 June 2026.

Round-trip from

C$ 750

One-way from

C$ 406
United Airlines
  • United Airlines
  • 2/12-3/12
  • 3 total stops
  • 13h 16m total
  • Sudbury to Illinois
Search Deals
Air Canada
  • Air Canada
  • 15/9
  • 1 total stop
  • 6h 10m total
  • Sudbury to Illinois
Search Deals

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 June 2026.
Use the filters below to find and compare flights from Sudbury to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Wed 2/12

3:55 p.m.-11:42 p.m.

2 stops8h 47m

Chicago O'Hare Intl

Thu 3/12

9:50 a.m.-3:19 p.m.

1 stop4h 29m

C$ 750
Quickest round-trip

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Wed 2/12

3:55 p.m.-7:35 p.m.

1 stop4h 40m

Chicago O'Hare Intl

Thu 3/12

12:00 p.m.-7:19 p.m.

1 stop6h 19m

C$ 750
Cheapest one-way
Quickest one-way

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Fri 24/7

9:45 a.m.-2:55 p.m.

1 stop6h 10m

C$ 424

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Tue 15/9

9:45 a.m.-11:40 p.m.

2 stops14h 55m

C$ 456

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Fri 24/7

9:45 a.m.-11:31 p.m.

2 stops14h 46m

C$ 472

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Fri 24/7

4:10 p.m.-8:31 p.m.

3 stops29h 21m

C$ 665

SudburyChicago

YSB - ORD

YSBORD

Sudbury

Sun 26/7

3:50 p.m.-4:40 p.m.

1 stop25h 50m

C$ 669

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/6

Sorted by cheapest first

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$ 750, United Airlines can have you in Illinois from Sudbury, Ontario in 4h 40m. The distance from Sudbury, Ontario to Illinois is about 764 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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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Fly with Cheapflights

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How does Cheapflights help users find flights from Sudbury to Illinois?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sudbury to Illinois. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Sudbury to Illinois?

Cheapflights helps you find that perfect flight to Illinois from Sudbury by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Sudbury to Illinois with no change fees?

Need flexible booking options for your flight to Illinois from Sudbury? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Sudbury to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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