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Cheap flights from Illinois to Hamilton, ON from C$ 269

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YHM
21 Apr — 28 Apr1
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 22 March 2026.

Wed 8/45:05 a.m.
ORD
-
YHM
1 stop8h 55m
Multiple Airlines
Thu 23/47:25 a.m.
YHM
-
ORD
1 stop17h 59m
Multiple Airlines
Deal found 18/3C$ 519
Wed 8/45:05 a.m.
ORD
-
YHM
1 stop8h 55m
Multiple Airlines
Mon 20/47:25 a.m.
YHM
-
ORD
2 stops27h 58m
Multiple Airlines
Deal found 18/3C$ 542
Thu 30/45:05 a.m.
ORD
-
YHM
1 stop8h 55m
Multiple Airlines
Sat 2/58:15 a.m.
YHM
-
ORD
1 stop17h 09m
Multiple Airlines
Deal found 17/3C$ 571
Fri 5/67:45 p.m.
ORD
-
YHM
1 stop19h 10m
Multiple Airlines
Mon 8/68:15 a.m.
YHM
-
ORD
1 stop26h 16m
Multiple Airlines
Deal found 18/3C$ 606
Wed 29/411:28 a.m.
ORD
-
YHM
2 stops26h 32m
Multiple Airlines
Mon 4/58:15 a.m.
YHM
-
ORD
1 stop17h 12m
Multiple Airlines
Deal found 19/3C$ 610
Tue 31/36:05 a.m.
ORD
-
YHM
1 stop17h 17m
Multiple Airlines
Wed 1/47:25 a.m.
YHM
-
ORD
1 stop11h 45m
Multiple Airlines
Deal found 21/3C$ 785
Mon 30/35:05 a.m.
ORD
-
YHM
1 stop8h 55m
Multiple Airlines
Tue 31/37:00 a.m.
YHM
-
ORD
2 stops26h 50m
Multiple Airlines
Deal found 19/3C$ 804

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 22 March 2026.

Round-trip from

C$ 519

One-way from

C$ 269

Popular in

December

Cheapest in

September

Average price

C$ 358
8/4-23/4
  • 8/4-23/4
  • 2 total stops
  • 26h 54m total
  • Illinois to Hamilton
Search Deals
29/4
  • 29/4
  • 2 total stops
  • 26h 32m total
  • Illinois to Hamilton
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 31 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 March 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 22 March 2026.
Use the filters below to find and compare flights from Illinois to Hamilton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 30/4

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

1 stop8h 55m

Hamilton

Sat 2/5

8:15 a.m.-12:24 a.m.

1 stop17h 09m

C$ 571

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 29/4

11:28 a.m.-3:00 p.m.

2 stops26h 32m

Hamilton

Mon 4/5

8:15 a.m.-12:27 a.m.

1 stop17h 12m

C$ 772

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 1/4

6:05 a.m.-12:20 a.m.

1 stop17h 15m

Hamilton

Wed 15/4

3:15 p.m.-5:52 a.m.

2 stops15h 37m

C$ 862

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 4/6

6:00 a.m.-11:13 p.m.

2 stops16h 13m

Hamilton

Mon 8/6

8:15 a.m.-12:25 p.m.

1 stop29h 10m

C$ 1,040

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 18/6

5:30 p.m.-10:34 p.m.

2 stops28h 04m

Hamilton

Sun 21/6

5:45 p.m.-4:40 p.m.

2 stops23h 55m

C$ 1,530

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 30/4

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$ 1,563

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 25/6

5:30 p.m.-10:09 p.m.

2 stops27h 39m

Hamilton

Mon 29/6

7:00 a.m.-4:40 p.m.

2 stops34h 40m

C$ 1,571

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 25/6

5:30 p.m.-6:00 p.m.

2 stops23h 30m

Hamilton

Sun 28/6

7:25 a.m.-4:40 p.m.

2 stops34h 15m

C$ 1,722
Quickest round-trip

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 19/6

8:45 a.m.-7:39 p.m.

2 stops9h 54m

Hamilton

Sun 21/6

8:50 a.m.-6:43 p.m.

1 stop10h 53m

C$ 1,730
Cheapest one-way
Quickest one-way

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 2/4

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

1 stop8h 55m

C$ 361

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/3

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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$ 107). Flying from Illinois to Hamilton, Ontario in February is currently the most expensive (average of C$ 259). 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$ 107). Flying from Illinois to Hamilton, Ontario in February is currently the most expensive (average of C$ 259). 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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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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