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Cheap flights from Hamilton, ON to Illinois from C$ 214

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

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 30 October 2025.

Round-trip from

C$ 501

One-way from

C$ 214

Popular in

October

Cheapest in

July

Average price

C$ 413
12/12-14/12
  • 12/12-14/12
  • 3 total stops
  • 25h 07m total
  • Hamilton to Illinois
Search Deals
12/12
  • 12/12
  • 1 total stop
  • 8h 21m total
  • Hamilton to Illinois
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 30 October 2025.

Fri 12/127:00 a.m.YHM - ORD
1 stop8h 21mMultiple Airlines
Mon 12/12:20 p.m.ORD - YHM
1 stop10h 00mMultiple Airlines
Deal found 30/10C$ 452
Fri 12/127:00 a.m.YHM - ORD
1 stop8h 21mMultiple Airlines
Sun 14/129:14 p.m.ORD - YHM
2 stops16h 46mMultiple Airlines
Deal found 29/10C$ 501
Sun 14/127:00 a.m.YHM - ORD
2 stops34h 54mMultiple Airlines
Sun 21/125:00 a.m.ORD - YHM
1 stop9h 00mMultiple Airlines
Deal found 30/10C$ 550
Sat 13/127:25 a.m.YHM - ORD
1 stop17h 44mMultiple Airlines
Sat 20/127:57 p.m.ORD - YHM
2 stops18h 03mMultiple Airlines
Deal found 29/10C$ 585
Mon 17/112:35 p.m.YHM - ORD
2 stops21h 39mMultiple Airlines
Mon 24/112:20 p.m.ORD - YHM
1 stop32h 27mMultiple Airlines
Deal found 30/10C$ 814
Mon 17/112:35 p.m.YHM - ORD
2 stops21h 39mMultiple Airlines
Fri 21/112:20 p.m.ORD - YHM
1 stop32h 27mMultiple Airlines
Deal found 30/10C$ 821

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 30 October 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

Fri 12/12

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

1 stop8h 21m

Chicago O'Hare Intl

Mon 12/1

2:20 p.m.-1:20 a.m.

1 stop10h 00m

C$ 452

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 14/12

7:00 a.m.-4:54 p.m.

2 stops34h 54m

Chicago O'Hare Intl

Sun 21/12

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

1 stop9h 00m

C$ 550

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sat 13/12

8:15 a.m.-11:42 a.m.

2 stops28h 27m

Chicago O'Hare Intl

Sat 20/12

3:26 p.m.-3:00 p.m.

1 stop22h 34m

C$ 691

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 16/1

7:00 a.m.-11:42 p.m.

3 stops17h 42m

Chicago O'Hare Intl

Mon 19/1

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

1 stop8h 55m

C$ 806

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Mon 17/11

2:35 p.m.-11:14 a.m.

2 stops21h 39m

Chicago O'Hare Intl

Mon 24/11

2:20 p.m.-11:47 p.m.

1 stop32h 27m

C$ 814

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Mon 17/11

2:35 p.m.-11:14 a.m.

2 stops21h 39m

Chicago O'Hare Intl

Fri 21/11

2:20 p.m.-11:47 p.m.

1 stop32h 27m

C$ 821

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Wed 24/12

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

1 stop12h 14m

Chicago O'Hare Intl

Sun 28/12

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

1 stop9h 00m

C$ 896

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Tue 24/2

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

1 stop11h 04m

C$ 243

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 1/2

6:10 p.m.-1:35 p.m.

1 stop20h 25m

C$ 247

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 12/12

7:00 a.m.-12:09 a.m.

2 stops18h 09m

C$ 260

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 14 results
1
2

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, June is the cheapest month in which you can book a flight from Hamilton, Ontario to Illinois (average of C$ 116). Flying from Hamilton, Ontario to Illinois in February is currently the most expensive (average of C$ 265). 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 30 October 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
10,381 reviews
Check prices

Food

6.3

Comfort

7.1

Entertainment

6.8

Crew

7.8

Overall

7.1

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.
Air Canada
7.1
Good
10,381 reviews
Air Canada
7.1
Good
10,381 reviews
Check prices

Food

6.3

Comfort

7.1

Entertainment

6.8

Crew

7.8

Overall

7.1

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.

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, June is the cheapest month in which you can book a flight from Hamilton, Ontario to Illinois (average of C$ 116). Flying from Hamilton, Ontario to Illinois in February is currently the most expensive (average of C$ 265). 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 30 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 307AverageC$ 384FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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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.

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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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