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Cheap flights from Illinois to Hamilton, ON from C$ 204

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YHM
4 Aug — 11 Aug1
1 adult

Cheap flight deals from Illinois to Hamilton

Keep the following information in mind while searching for Illinois to Hamilton flight deals. Data was last updated 30 July 2025.

Round-trip from

C$ 439

One-way from

C$ 204

Popular in

November

Cheapest in

August

Average price

C$ 372
WestJet
  • WestJet
  • 26/9-29/9
  • 2 total stops
  • 41h 53m total
  • Illinois to Hamilton
Search Deals
WestJet
  • WestJet
  • 12/9
  • 1 total stop
  • 30h 10m total
  • Illinois to Hamilton
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Illinois to Hamilton

Cheapest flights from Illinois to Hamilton
Explore the most affordable flight options available from Illinois to Hamilton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.

Fri 5/95:30 p.m.ORD - YHM
1 stop30h 10mWestJet
Thu 11/96:00 a.m.YHM - ORD
1 stop11h 43mWestJet
Deal found 28/7C$ 428
Tue 26/85:30 p.m.ORD - YHM
1 stop30h 11mMultiple Airlines
Tue 2/92:55 p.m.YHM - ORD
1 stop22h 44mMultiple Airlines
Deal found 27/7C$ 606

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Hamilton 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 30 July 2025.
Use the filters below to find and compare flights from Illinois to Hamilton that are best for you.

Fly from

Illinois

Fly to

Hamilton

Route

Depart

Return

Price

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 5/9

5:30 p.m.-12:40 a.m.

1 stop30h 10m

Hamilton

Thu 11/9

6:00 a.m.-4:43 p.m.

1 stop11h 43m

C$ 428

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Tue 26/8

5:30 p.m.-12:41 a.m.

1 stop30h 11m

Hamilton

Tue 2/9

2:55 p.m.-12:39 p.m.

1 stop22h 44m

C$ 606

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 12/9

5:30 p.m.-12:40 a.m.

1 stop30h 10m

C$ 204

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Sat 13/9

1:40 p.m.-11:48 p.m.

1 stop9h 08m

C$ 221

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Best time to book a flight from Illinois to Hamilton

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

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Hamilton, Ontario (average of C$ 186). Flying from Illinois to Hamilton, Ontario in December is currently the most expensive (average of C$ 271). 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.

Reviews of airlines servicing Hamilton

Get insights into the airlines that provide service to Hamilton. 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 Hamilton. Reviews last updated 30 July 2025.
Get a feel of what it's like to fly with WestJet from Illinois to Hamilton by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
2,975 reviews
Check prices

Food

6.2

Comfort

7.0

Entertainment

6.1

Boarding

7.4

Crew

7.9

Overall

7.2

Reviews

1 / 20
6.0
Good

Roger,Jun 2025

MSP - YXE

Everything was good except the actual equipment. The aircraft was old and definitely showed its age, as far the interior cabin was concerned. WestJet definitely needs tio update the interior.
WestJet
7.2
Good
2,975 reviews
WestJet
7.2
Good
2,975 reviews
Check prices

Food

6.2

Comfort

7.0

Entertainment

6.1

Boarding

7.4

Crew

7.9

Overall

7.2

Reviews

1 / 20
6.0
Good

Roger,Jun 2025

MSP - YXE

Everything was good except the actual equipment. The aircraft was old and definitely showed its age, as far the interior cabin was concerned. WestJet definitely needs tio update the interior.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Hamilton. 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 into for flights to Hamilton from Illinois?

    For a flight from Illinois to Hamilton, you will be flying into Hamilton. Hamilton (YHM) is just 10.9 km from the centre of the city.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Hamilton 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 Illinois to Hamilton, Ontario?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Hamilton, Ontario (average of C$ 186). Flying from Illinois to Hamilton, Ontario in December is currently the most expensive (average of C$ 271). 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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