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Cheap flights from Illinois to Hamilton, ON from C$ 195

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 25/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YHM
7 Mar — 14 Mar1
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 5 February 2026.

Wed 25/25:15 a.m.
ORD
-
YHM
1 stop8h 45m
Multiple Airlines
Thu 26/27:25 a.m.
YHM
-
ORD
1 stop17h 22m
Multiple Airlines
Deal found 4/2C$ 463
Fri 8/55:30 p.m.
ORD
-
YHM
1 stop22h 45m
WestJet
Sun 10/56:10 p.m.
YHM
-
ORD
1 stop23h 30m
WestJet
Deal found 3/2C$ 471
Fri 1/55:30 p.m.
ORD
-
YHM
1 stop22h 45m
WestJet
Sun 3/56:10 p.m.
YHM
-
ORD
1 stop23h 30m
WestJet
Deal found 3/2C$ 515
Thu 5/35:15 a.m.
ORD
-
YHM
1 stop8h 45m
Multiple Airlines
Sat 7/37:25 a.m.
YHM
-
ORD
1 stop12h 46m
Multiple Airlines
Deal found 2/2C$ 528
Fri 19/65:30 p.m.
ORD
-
YHM
1 stop22h 45m
WestJet
Mon 22/66:10 p.m.
YHM
-
ORD
1 stop23h 33m
WestJet
Deal found 4/2C$ 554
Wed 1/44:36 p.m.
ORD
-
YHM
1 stop21h 24m
Multiple Airlines
Wed 15/46:10 p.m.
YHM
-
ORD
2 stops29h 29m
Multiple Airlines
Deal found 3/2C$ 590
Thu 19/25:15 a.m.
ORD
-
YHM
1 stop8h 45m
Multiple Airlines
Mon 23/27:25 a.m.
YHM
-
ORD
1 stop17h 22m
Multiple Airlines
Deal found 4/2C$ 601
Wed 29/47:20 p.m.
ORD
-
YHM
2 stops18h 40m
Multiple Airlines
Sat 2/58:15 a.m.
YHM
-
ORD
1 stop16h 26m
Multiple Airlines
Deal found 2/2C$ 606
Wed 4/38:16 p.m.
ORD
-
YHM
1 stop17h 44m
Multiple Airlines
Wed 11/37:25 a.m.
YHM
-
ORD
1 stop17h 22m
Multiple Airlines
Deal found 4/2C$ 624
Wed 11/25:15 a.m.
ORD
-
YHM
1 stop8h 45m
Multiple Airlines
Thu 19/27:25 a.m.
YHM
-
ORD
1 stop17h 22m
Multiple Airlines
Deal found 3/2C$ 659
Fri 12/65:30 p.m.
ORD
-
YHM
1 stop22h 45m
WestJet
Sun 14/66:10 p.m.
YHM
-
ORD
1 stop23h 30m
WestJet
Deal found 3/2C$ 744

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 5 February 2026.

Round-trip from

C$ 463

One-way from

C$ 195

Popular in

January

Cheapest in

September

Average price

C$ 377
25/2-26/2
  • 25/2-26/2
  • 2 total stops
  • 26h 07m total
  • Illinois to Hamilton
Search Deals
25/2
  • 25/2
  • 1 total stop
  • 17h 44m total
  • Illinois to Hamilton
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 54 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 February 2026
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 5 February 2026.
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 8/5

5:30 p.m.-5:15 p.m.

1 stop22h 45m

Hamilton

Sun 10/5

6:10 p.m.-4:40 p.m.

1 stop23h 30m

C$ 471

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 1/5

5:30 p.m.-5:15 p.m.

1 stop22h 45m

Hamilton

Sun 3/5

6:10 p.m.-4:40 p.m.

1 stop23h 30m

C$ 515

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 5/3

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

1 stop8h 45m

Hamilton

Sat 7/3

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

1 stop12h 46m

C$ 528

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 19/6

5:30 p.m.-5:15 p.m.

1 stop22h 45m

Hamilton

Mon 22/6

6:10 p.m.-4:43 p.m.

1 stop23h 33m

C$ 554

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 1/4

4:36 p.m.-3:00 p.m.

1 stop21h 24m

Hamilton

Wed 15/4

6:10 p.m.-10:39 p.m.

2 stops29h 29m

C$ 590

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 19/2

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

1 stop8h 45m

Hamilton

Mon 23/2

7:25 a.m.-11:47 p.m.

1 stop17h 22m

C$ 601

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 4/3

8:16 p.m.-3:00 p.m.

1 stop17h 44m

Hamilton

Wed 11/3

7:25 a.m.-11:47 p.m.

1 stop17h 22m

C$ 624

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 12/6

5:30 p.m.-5:15 p.m.

1 stop22h 45m

Hamilton

Sun 14/6

6:10 p.m.-4:40 p.m.

1 stop23h 30m

C$ 744

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 5/3

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

1 stop8h 45m

Hamilton

Thu 12/3

7:25 a.m.-5:15 p.m.

1 stop10h 50m

C$ 770

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 25/2

8:16 p.m.-3:00 p.m.

1 stop17h 44m

C$ 195

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 18 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, October is the cheapest month in which you can book a flight from Illinois to Hamilton, Ontario (average of C$ 116). Flying from Illinois to Hamilton, Ontario in January 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.

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

    For as low as C$ 471, WestJet can have you in Hamilton, Ontario from Illinois in 22h 45m. 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, October is the cheapest month in which you can book a flight from Illinois to Hamilton, Ontario (average of C$ 116). Flying from Illinois to Hamilton, Ontario in January 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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Alternative routes for Illinois to Hamilton

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Can Cheapflights find flights from Illinois to Hamilton with no change fees?

Yes, we can. To see specific flights from Illinois to Hamilton with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Illinois to Hamilton become cheaper?

Yes! Start tracking prices for Illinois to Hamilton flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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