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Cheap flights from Sudbury, ON to Illinois from C$ 305

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
YSB — ORD
8 jul. — 15 jul.1
1 adult

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 3 julio 2025.

Round-trip from

C$ 397

One-way from

C$ 305
Air Canada
  • Air Canada
  • 4/10-6/10
  • 2 total stops
  • 8h 55m total
  • Sudbury to Illinois
Search Deals
United Airlines
  • United Airlines
  • 15/8
  • 1 total stop
  • 4h 34m total
  • Sudbury to Illinois
Search Deals

Find flight deals from Sudbury to Illinois

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 3 julio 2025.

sáb. 4/103:55 p.m.YSB - ORD
1 stop4h 34mAir Canada
lun. 6/109:55 a.m.ORD - YSB
1 stop4h 21mAir Canada
Deal found 1/7C$ 397
mié. 30/79:45 a.m.YSB - ORD
2 stops14h 45mMultiple Airlines
mié. 6/89:55 a.m.ORD - YSB
1 stop4h 22mMultiple Airlines
Deal found 2/7C$ 679

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 3 julio 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

sáb. 4/10

3:55 p.m.-7:29 p.m.

1 stop4h 34m

Chicago O'Hare Intl

lun. 6/10

9:55 a.m.-3:16 p.m.

1 stop4h 21m

C$ 397

SudburyChicago

YSB - ORD

YSBORD

Sudbury

mié. 30/7

9:45 a.m.-11:30 p.m.

2 stops14h 45m

Chicago O'Hare Intl

mié. 6/8

9:55 a.m.-3:17 p.m.

1 stop4h 22m

C$ 679

SudburyChicago

YSB - ORD

YSBORD

Sudbury

vie. 15/8

3:55 p.m.-7:29 p.m.

1 stop4h 34m

C$ 305

SudburyChicago

YSB - ORD

YSBORD

Sudbury

dom. 17/8

9:45 a.m.-1:13 p.m.

1 stop4h 28m

C$ 376

SudburyChicago

YSB - ORD

YSBORD

Sudbury

dom. 17/8

3:25 p.m.-5:40 a.m.

3 stops39h 15m

C$ 812

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

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.

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 3 julio 2025.
Read through reviews of airlines operating flights from Sudbury to Illinois, such as United Airlines and Air Canada. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,845 reviews
Check prices

Crew

8.1

Food

6.6

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,845 reviews
United Airlines
7.4
Good
8,845 reviews
Check prices

Crew

8.1

Food

6.6

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Air Canada
7.1
Good
9,678 reviews
United Airlines
7.4
Good
8,845 reviews
Check prices

Crew

8.1

Food

6.6

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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$ 352). 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

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Top airline flying from Sudbury to Illinois

Discover the top airline that operate flights from Sudbury to Illinois. 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 629,999 searches. Data last updated 3 julio 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 436AverageC$ 743FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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

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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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