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Cheap flights from Illinois to Hamilton, ON from C$ 281

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 14/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YHM
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 30 October 2025.

Sat 13/125:00 a.m.ORD - YHM
1 stop9h 00mMultiple Airlines
Sat 20/126:30 p.m.YHM - ORD
2 stops25h 09mMultiple Airlines
Deal found 29/10C$ 637
Tue 23/129:09 p.m.ORD - YHM
2 stops16h 51mMultiple Airlines
Thu 8/17:25 a.m.YHM - ORD
1 stop17h 17mMultiple Airlines
Deal found 29/10C$ 677
Sat 20/129:09 p.m.ORD - YHM
2 stops16h 11mMultiple Airlines
Tue 30/127:00 a.m.YHM - ORD
1 stop8h 21mMultiple Airlines
Deal found 28/10C$ 690
Wed 24/125:00 a.m.ORD - YHM
1 stop9h 00mMultiple Airlines
Wed 31/127:25 a.m.YHM - ORD
1 stop12h 14mMultiple Airlines
Deal found 29/10C$ 700
Sun 14/125:00 a.m.ORD - YHM
1 stop9h 00mMultiple Airlines
Wed 17/127:25 a.m.YHM - ORD
1 stop17h 44mMultiple Airlines
Deal found 29/10C$ 702
Fri 19/127:57 p.m.ORD - YHM
2 stops18h 03mMultiple Airlines
Wed 24/127:25 a.m.YHM - ORD
1 stop18h 05mMultiple Airlines
Deal found 30/10C$ 825
Sun 14/129:14 p.m.ORD - YHM
2 stops16h 46mMultiple Airlines
Sun 21/127:25 a.m.YHM - ORD
1 stop12h 14mMultiple Airlines
Deal found 30/10C$ 892

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 October 2025.

Round-trip from

C$ 487

One-way from

C$ 281

Popular in

January

Cheapest in

September

Average price

C$ 418
9/1-11/1
  • 9/1-11/1
  • 2 total stops
  • 18h 19m total
  • Illinois to Hamilton
Search Deals
14/12
  • 14/12
  • 1 total stop
  • 9h 00m total
  • Illinois to Hamilton
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 67 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 October 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 30 October 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 9/1

6:05 a.m.-2:20 p.m.

1 stop7h 15m

Hamilton

Sun 11/1

7:00 a.m.-5:04 p.m.

1 stop11h 04m

C$ 487

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Tue 20/1

6:05 a.m.-2:20 p.m.

1 stop7h 15m

Hamilton

Fri 23/1

7:00 a.m.-5:04 p.m.

1 stop11h 04m

C$ 619

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Sat 13/12

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

1 stop9h 00m

Hamilton

Sat 20/12

6:30 p.m.-6:39 p.m.

2 stops25h 09m

C$ 637

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Tue 23/12

9:09 p.m.-3:00 p.m.

2 stops16h 51m

Hamilton

Thu 8/1

7:25 a.m.-11:42 p.m.

1 stop17h 17m

C$ 677

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Sat 20/12

9:09 p.m.-2:20 p.m.

2 stops16h 11m

Hamilton

Tue 30/12

7:00 a.m.-2:21 p.m.

1 stop8h 21m

C$ 690

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 16/1

6:05 a.m.-2:20 p.m.

1 stop7h 15m

Hamilton

Tue 20/1

7:00 a.m.-9:23 p.m.

1 stop15h 23m

C$ 695

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 24/12

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

1 stop9h 00m

Hamilton

Wed 31/12

7:25 a.m.-6:39 p.m.

1 stop12h 14m

C$ 700

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 15/1

5:05 a.m.-3:00 p.m.

1 stop8h 55m

Hamilton

Sun 18/1

7:25 a.m.-11:42 p.m.

1 stop17h 17m

C$ 803

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 16/1

2:20 p.m.-7:00 p.m.

2 stops27h 40m

Hamilton

Sun 18/1

8:15 a.m.-1:35 p.m.

2 stops30h 20m

C$ 846

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 19/12

7:57 p.m.-3:00 p.m.

2 stops18h 03m

Hamilton

Wed 24/12

7:00 a.m.-12:30 a.m.

3 stops18h 30m

C$ 846

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 12 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$ 148). Flying from Illinois to Hamilton, Ontario in July is currently the most expensive (average of C$ 242). 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.

  • 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$ 148). Flying from Illinois to Hamilton, Ontario in July is currently the most expensive (average of C$ 242). 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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