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Cheap flights from Illinois to Hamilton, ON from C$ 176

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YHM
14 Oct — 21 Oct1
1 adult
1 adult, Economy

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 14 September 2025.

Round-trip from

C$ 376

One-way from

C$ 176

Popular in

November

Cheapest in

July

Average price

C$ 357
WestJet
  • WestJet
  • 5/10-18/10
  • 2 total stops
  • 41h 53m total
  • Illinois to Hamilton
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WestJet
  • WestJet
  • 10/10
  • 1 total stop
  • 30h 10m total
  • Illinois to Hamilton
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 14 September 2025.

Sun 5/105:30 p.m.ORD - YHM
1 stop30h 10mWestJet
Sat 18/106:00 a.m.YHM - ORD
1 stop11h 43mWestJet
Deal found 13/9C$ 376
Fri 10/105:30 p.m.ORD - YHM
1 stop30h 10mWestJet
Sun 12/106:00 a.m.YHM - ORD
1 stop11h 43mWestJet
Deal found 14/9C$ 382
Fri 14/112:20 p.m.ORD - YHM
1 stop32h 35mMultiple Airlines
Sun 23/116:10 p.m.YHM - ORD
1 stop20h 25mMultiple Airlines
Deal found 14/9C$ 389
Sun 19/105:30 p.m.ORD - YHM
1 stop30h 10mWestJet
Sat 25/106:00 a.m.YHM - ORD
1 stop11h 43mWestJet
Deal found 14/9C$ 392
Sun 19/105:30 p.m.ORD - YHM
1 stop30h 10mWestJet
Fri 24/106:00 a.m.YHM - ORD
1 stop11h 43mWestJet
Deal found 14/9C$ 393
Wed 12/117:35 a.m.ORD - YHM
2 stops32h 42mMultiple Airlines
Sun 23/116:10 p.m.YHM - ORD
1 stop20h 25mMultiple Airlines
Deal found 14/9C$ 466
Mon 10/116:30 p.m.ORD - YHM
2 stops26h 48mMultiple Airlines
Sun 23/116:10 p.m.YHM - ORD
1 stop20h 25mMultiple Airlines
Deal found 14/9C$ 494
Thu 13/117:35 a.m.ORD - YHM
2 stops39h 20mMultiple Airlines
Sun 23/116:10 p.m.YHM - ORD
1 stop20h 25mMultiple Airlines
Deal found 14/9C$ 500
Sat 15/115:45 p.m.ORD - YHM
2 stops46h 32mMultiple Airlines
Sun 23/116:10 p.m.YHM - ORD
1 stop20h 25mMultiple Airlines
Deal found 14/9C$ 516
Tue 11/1112:37 p.m.ORD - YHM
2 stops34h 18mMultiple Airlines
Sun 23/116:10 p.m.YHM - ORD
1 stop20h 25mMultiple Airlines
Deal found 14/9C$ 526
Fri 14/112:20 p.m.ORD - YHM
1 stop32h 35mMultiple Airlines
Wed 19/112:35 p.m.YHM - ORD
2 stops16h 50mMultiple Airlines
Deal found 14/9C$ 527

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 14 September 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

Sun 5/10

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

1 stop30h 10m

Hamilton

Sat 18/10

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

1 stop11h 43m

C$ 376

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 10/10

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

1 stop30h 10m

Hamilton

Sun 12/10

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

1 stop11h 43m

C$ 382

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 14/11

2:20 p.m.-11:55 p.m.

1 stop32h 35m

Hamilton

Sun 23/11

6:10 p.m.-1:35 p.m.

1 stop20h 25m

C$ 389

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Sun 19/10

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

1 stop30h 10m

Hamilton

Sat 25/10

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

1 stop11h 43m

C$ 392

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Sun 19/10

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

1 stop30h 10m

Hamilton

Fri 24/10

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

1 stop11h 43m

C$ 393

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 12/11

7:35 a.m.-5:17 p.m.

2 stops32h 42m

Hamilton

Sun 23/11

6:10 p.m.-1:35 p.m.

1 stop20h 25m

C$ 466

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Mon 10/11

6:30 p.m.-10:18 p.m.

2 stops26h 48m

Hamilton

Sun 23/11

6:10 p.m.-1:35 p.m.

1 stop20h 25m

C$ 494

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Sat 15/11

5:45 p.m.-5:17 p.m.

2 stops46h 32m

Hamilton

Sun 23/11

6:10 p.m.-1:35 p.m.

1 stop20h 25m

C$ 516

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Tue 11/11

12:37 p.m.-11:55 p.m.

2 stops34h 18m

Hamilton

Sun 23/11

6:10 p.m.-1:35 p.m.

1 stop20h 25m

C$ 526

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 26/9

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

1 stop30h 10m

Hamilton

Fri 3/10

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

1 stop11h 43m

C$ 538

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 20 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, 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.

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$ 376, 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, 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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