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$131+ Cheap flights from Hamilton, ON (YHM) to Illinois

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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — ORD
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from Hamilton to Illinois

Keep the following information in mind while searching for Hamilton to Illinois flight deals. Data was last updated septiembre 11, 2025.

Round-trip from

$271
(Kiwi.com)

One-way from

$131
(oojo)

Popular in

December

Cheapest in

July

Average price

$250
From Hamilton to Illinois
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One-way flight from Hamilton to Illinois
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Highest demand for flights based on searches. 7% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Hamilton to Illinois

Cheapest flights from Hamilton to Illinois
Explore the most affordable flight options available from Hamilton to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/246:00 amYHM - ORD
1 stop11h 43mMultiple Airlines
vie. 10/312:20 pmORD - YHM
1 stop32h 35mMultiple Airlines
Deal found 9/9$271
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/236:00 amYHM - ORD
1 stop11h 43mWestJet
dom. 10/262:20 pmORD - YHM
1 stop25h 57mWestJet
Deal found 9/9$290
This oojo deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/236:00 amYHM - ORD
1 stop11h 43mWestJet
sáb. 10/255:30 pmORD - YHM
1 stop22h 47mWestJet
Deal found 9/10$336
This oojo deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/176:00 amYHM - ORD
1 stop11h 43mWestJet
dom. 10/262:20 pmORD - YHM
1 stop25h 57mWestJet
Deal found 9/11$351
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/36:00 amYHM - ORD
1 stop11h 43mWestJet
lun. 10/65:30 pmORD - YHM
1 stop30h 10mWestJet
Deal found 9/11$354
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/32:55 pmYHM - ORD
1 stop22h 44mMultiple Airlines
lun. 10/65:30 pmORD - YHM
2 stops22h 14mMultiple Airlines
Deal found 9/11$360
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/32:55 pmYHM - ORD
1 stop22h 44mMultiple Airlines
dom. 10/55:30 pmORD - YHM
1 stop30h 10mMultiple Airlines
Deal found 9/11$361
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/32:55 pmYHM - ORD
1 stop22h 44mMultiple Airlines
mar. 10/711:00 amORD - YHM
2 stops28h 44mMultiple Airlines
Deal found 9/11$362
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/212:10 pmYHM - ORD
1 stop29h 33mMultiple Airlines
lun. 10/65:30 pmORD - YHM
2 stops22h 14mMultiple Airlines
Deal found 9/11$377
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/212:10 pmYHM - ORD
1 stop29h 33mMultiple Airlines
mar. 10/711:00 amORD - YHM
2 stops28h 44mMultiple Airlines
Deal found 9/11$380

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hamilton to Illinois 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 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from Hamilton to Illinois that are best for you.

Fly from

Hamilton

Fly to

Illinois

Route

Depart

Return

Price

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

vie. 10/24

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

vie. 10/31

2:20 pm-11:55 pm

1 stop32h 35m

$271

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

jue. 10/23

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

dom. 10/26

2:20 pm-5:17 pm

1 stop25h 57m

$290

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

jue. 10/23

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

sáb. 10/25

5:30 pm-5:17 pm

1 stop22h 47m

$336

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

vie. 10/17

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

dom. 10/26

2:20 pm-5:17 pm

1 stop25h 57m

$351

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

vie. 10/3

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

lun. 10/6

5:30 pm-12:40 am

1 stop30h 10m

$354

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

vie. 10/3

2:55 pm-12:39 pm

1 stop22h 44m

Chicago O'Hare Intl

lun. 10/6

5:30 pm-4:44 pm

2 stops22h 14m

$360

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

vie. 10/3

2:55 pm-12:39 pm

1 stop22h 44m

Chicago O'Hare Intl

dom. 10/5

5:30 pm-12:40 am

1 stop30h 10m

$361

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

vie. 10/3

2:55 pm-12:39 pm

1 stop22h 44m

Chicago O'Hare Intl

mar. 10/7

11:00 am-4:44 pm

2 stops28h 44m

$362

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

jue. 10/2

12:10 pm-4:43 pm

1 stop29h 33m

Chicago O'Hare Intl

lun. 10/6

5:30 pm-4:44 pm

2 stops22h 14m

$377

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

sáb. 10/18

6:00 am-4:43 pm

1 stop11h 43m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 18 results
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Best time to book a flight from Hamilton to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Hamilton 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 Hamilton to Illinois

What is the cheapest month to book a flight from Hamilton, Ontario to Illinois?

Currently, August is the cheapest month in which you can book a flight from Hamilton, Ontario to Illinois (average of $245). Flying from Hamilton, Ontario to Illinois in March is currently the most expensive (average of $321). 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.

What is the cheapest time of day to fly from YHM to IL?

Find hourly flight availability from Hamilton to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

When flying from Hamilton, Ontario to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Hamilton to Illinois. 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 from for flights from Hamilton to Illinois?

    For a flight from Hamilton to Illinois, you will be flying from Hamilton. Hamilton (YHM) is just 6.8 mi from the center of the city.

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

    For as low as $290, WestJet can have you in Illinois from Hamilton, Ontario in 11h 43m. There are 414 mi between Hamilton, Ontario and Illinois.

  • Can I find deals for flights from Hamilton to Illinois that include hotel bookings?

    Yes. In addition to deals on Hamilton to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Hamilton to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hamilton to Illinois.

  • Can I find deals for business class flights from Hamilton to Illinois?

    Yes. Cheapflights offers flight deals from Hamilton to Illinois 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 Hamilton, Ontario to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Hamilton, Ontario to Illinois (average of $245). Flying from Hamilton, Ontario to Illinois in March is currently the most expensive (average of $321). 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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