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Cheap flights from Hamilton, ON to Illinois from C$ 189

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — ORD
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Hamilton to Illinois

Enter your travel dates to find the best prices.

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 18 December 2025.

Mon 29/127:25 a.m.YHM - ORD
1 stop12h 14mMultiple Airlines
Wed 31/129:09 p.m.ORD - YHM
2 stops16h 51mMultiple Airlines
Deal found 16/12C$ 759
Mon 22/127:25 a.m.YHM - ORD
1 stop28h 49mMultiple Airlines
Fri 2/112:39 p.m.ORD - YHM
2 stops48h 41mMultiple Airlines
Deal found 16/12C$ 1,549
Wed 31/127:25 a.m.YHM - ORD
1 stop12h 14mMultiple Airlines
Sat 3/15:00 a.m.ORD - YHM
1 stop9h 00mMultiple Airlines
Deal found 16/12C$ 1,562

Find flight deals from Hamilton to Illinois

Keep the following information in mind while searching for Hamilton to Illinois flight deals. Data was last updated 18 December 2025.

Round-trip from

C$ 344

One-way from

C$ 189

Popular in

December

Cheapest in

July

Average price

C$ 442
14/1-21/1
  • 14/1-21/1
  • 2 total stops
  • 26h 06m total
  • Hamilton to Illinois
Search Deals
31/1
  • 31/1
  • 1 total stop
  • 14h 38m total
  • Hamilton to Illinois
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 629,999 searches. Data last updated 18 December 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

Wed 14/1

7:25 a.m.-11:46 p.m.

1 stop17h 21m

Chicago O'Hare Intl

Wed 21/1

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

1 stop8h 45m

C$ 344

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Mon 26/1

7:25 a.m.-9:03 p.m.

1 stop14h 38m

Chicago O'Hare Intl

Wed 28/1

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

1 stop8h 45m

C$ 369

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 25/1

7:25 a.m.-9:03 p.m.

1 stop14h 38m

Chicago O'Hare Intl

Wed 28/1

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

1 stop8h 45m

C$ 438

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sat 24/1

7:00 a.m.-11:46 p.m.

3 stops17h 46m

Chicago O'Hare Intl

Thu 29/1

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

1 stop8h 45m

C$ 448

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Mon 9/2

7:25 a.m.-9:03 p.m.

1 stop14h 38m

Chicago O'Hare Intl

Wed 11/2

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

1 stop8h 45m

C$ 484

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 30/1

7:00 a.m.-7:41 p.m.

1 stop13h 41m

Chicago O'Hare Intl

Fri 6/2

2:20 p.m.-11:35 p.m.

2 stops32h 15m

C$ 543

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Tue 3/3

7:00 a.m.-7:47 p.m.

1 stop13h 47m

Chicago O'Hare Intl

Sun 8/3

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

1 stop17h 44m

C$ 547

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 5/2

7:25 a.m.-7:38 p.m.

1 stop13h 13m

Chicago O'Hare Intl

Sun 8/2

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

1 stop8h 45m

C$ 616

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sat 31/1

7:25 a.m.-9:03 p.m.

1 stop14h 38m

C$ 189

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 11/1

7:25 a.m.-11:22 a.m.

1 stop28h 57m

C$ 192

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

Showing 1-10 of 18 results
1
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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, April is the cheapest month in which you can book a flight from Hamilton, Ontario to Illinois (average of C$ 113). Flying from Hamilton, Ontario to Illinois in February is currently the most expensive (average of C$ 254). 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.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 18 December 2025.
Read reviews from past customers who have flown Air Canada from Hamilton to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,534 reviews
Check prices

Boarding

7.3

Overall

7.1

Comfort

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Air Canada
7.1
Good
10,534 reviews
Air Canada
7.1
Good
10,534 reviews
Check prices

Boarding

7.3

Overall

7.1

Comfort

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

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 10.9 km from the centre of the city.

  • 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, April is the cheapest month in which you can book a flight from Hamilton, Ontario to Illinois (average of C$ 113). Flying from Hamilton, Ontario to Illinois in February is currently the most expensive (average of C$ 254). 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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Top airline flying from Hamilton to Illinois

Discover the top airline that operate flights from Hamilton to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 300AverageC$ 414FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Hamilton to Illinois?

Deals for Hamilton to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Hamilton to Illinois?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from Hamilton.

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

Yes! Cheapflights helps users easily find flights from Hamilton to Illinois with no change fees.

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

Yes! Start tracking prices for Hamilton to Illinois 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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