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Cheap flights from Illinois to Hamilton, ON from C$ 150

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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YHM
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Hamilton

Enter your travel dates to find the best prices.

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 18 December 2025.

Thu 25/125:25 a.m.ORD - YHM
2 stops31h 55mMultiple Airlines
Tue 30/123:15 p.m.YHM - ORD
1 stop24h 38mMultiple Airlines
Deal found 15/12C$ 796
Fri 26/127:57 p.m.ORD - YHM
2 stops18h 03mMultiple Airlines
Wed 31/127:25 a.m.YHM - ORD
1 stop12h 14mMultiple Airlines
Deal found 16/12C$ 1,174
Sat 20/126:10 a.m.ORD - YHM
2 stops31h 10mMultiple Airlines
Mon 22/127:25 a.m.YHM - ORD
1 stop18h 05mMultiple Airlines
Deal found 17/12C$ 1,212
Sat 20/125:00 a.m.ORD - YHM
1 stop9h 00mMultiple Airlines
Sat 27/127:25 a.m.YHM - ORD
1 stop18h 05mMultiple Airlines
Deal found 16/12C$ 1,327
Thu 18/127:20 a.m.ORD - YHM
1 stop30h 00mMultiple Airlines
Wed 24/127:00 a.m.YHM - ORD
2 stops37h 02mMultiple Airlines
Deal found 17/12C$ 1,330
Fri 19/127:30 a.m.ORD - YHM
1 stop30h 30mMultiple Airlines
Sun 21/127:00 a.m.YHM - ORD
1 stop13h 02mMultiple Airlines
Deal found 17/12C$ 1,347

Find flight deals from Illinois to Hamilton

Keep the following information in mind while searching for Illinois to Hamilton flight deals. Data was last updated 18 December 2025.

Round-trip from

C$ 383

One-way from

C$ 150

Popular in

January

Cheapest in

September

Average price

C$ 415
31/1-7/2
  • 31/1-7/2
  • 3 total stops
  • 49h 37m total
  • Illinois to Hamilton
Search Deals
28/1
  • 28/1
  • 1 total stop
  • 8h 45m total
  • Illinois to Hamilton
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 18 December 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

Sat 31/1

8:00 a.m.-5:16 p.m.

2 stops32h 16m

Hamilton

Sat 7/2

7:25 a.m.-11:46 p.m.

1 stop17h 21m

C$ 383

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Tue 9/6

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

1 stop30h 10m

Hamilton

Thu 11/6

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

1 stop11h 43m

C$ 389

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 21/5

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

1 stop30h 10m

Hamilton

Sun 24/5

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

1 stop11h 43m

C$ 394

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 14/1

5:15 a.m.-3:00 p.m.

1 stop8h 45m

Hamilton

Wed 21/1

7:25 a.m.-11:46 p.m.

1 stop17h 21m

C$ 402

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Sat 23/5

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

1 stop30h 10m

Hamilton

Tue 26/5

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

1 stop11h 43m

C$ 423

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 5/2

5:15 a.m.-3:00 p.m.

1 stop8h 45m

Hamilton

Sun 8/2

6:30 p.m.-11:46 p.m.

2 stops30h 16m

C$ 428

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Sat 17/1

3:22 p.m.-2:20 p.m.

2 stops21h 58m

Hamilton

Fri 23/1

7:00 a.m.-7:41 p.m.

1 stop13h 41m

C$ 431

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 22/1

5:15 a.m.-3:00 p.m.

1 stop8h 45m

Hamilton

Mon 26/1

7:25 a.m.-9:03 p.m.

1 stop14h 38m

C$ 434

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 29/1

5:15 a.m.-3:00 p.m.

1 stop8h 45m

Hamilton

Mon 2/2

7:25 a.m.-7:38 p.m.

1 stop13h 13m

C$ 434

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 28/1

5:15 a.m.-3:00 p.m.

1 stop8h 45m

C$ 150

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/12

Showing 1-10 of 16 results
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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, March is the cheapest month in which you can book a flight from Illinois to Hamilton, Ontario (average of C$ 109). Flying from Illinois to Hamilton, Ontario in December is currently the most expensive (average of C$ 291). 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.

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.

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

    For as low as C$ 389, WestJet can have you in Hamilton, Ontario from Illinois in 30h 10m. Illinois and Hamilton, Ontario are separated by a distance of 666 km.

  • 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, March is the cheapest month in which you can book a flight from Illinois to Hamilton, Ontario (average of C$ 109). Flying from Illinois to Hamilton, Ontario in December is currently the most expensive (average of C$ 291). 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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