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Cheap flights from Hamilton, ON to Illinois from C$ 199

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — ORD
12 Jun — 19 Jun1
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 13 May 2026.

Mon 8/68:15 a.m.
YHM
-
ORD
2 stops24h 48m
Multiple Airlines
Sun 14/67:52 a.m.
ORD
-
YHM
1 stop31h 03m
Multiple Airlines
Deal found 10/5C$ 689
Thu 3/97:00 a.m.
YHM
-
ORD
2 stops34h 40m
Multiple Airlines
Mon 7/95:30 p.m.
ORD
-
YHM
3 stops22h 55m
Multiple Airlines
Deal found 11/5C$ 899
Mon 21/96:15 a.m.
YHM
-
ORD
3 stops35h 25m
Multiple Airlines
Thu 24/95:30 p.m.
ORD
-
YHM
3 stops28h 45m
Multiple Airlines
Deal found 11/5C$ 951
Wed 2/97:00 a.m.
YHM
-
ORD
2 stops34h 40m
Multiple Airlines
Mon 7/95:30 p.m.
ORD
-
YHM
3 stops22h 55m
Multiple Airlines
Deal found 8/5C$ 981
Thu 3/93:50 p.m.
YHM
-
ORD
3 stops25h 50m
Multiple Airlines
Tue 8/95:30 p.m.
ORD
-
YHM
3 stops22h 55m
Multiple Airlines
Deal found 10/5C$ 1,044
Tue 23/66:55 p.m.
YHM
-
ORD
1 stop22h 45m
Multiple Airlines
Tue 30/61:29 p.m.
ORD
-
YHM
2 stops32h 44m
Multiple Airlines
Deal found 9/5C$ 1,062

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 13 May 2026.

Round-trip from

C$ 689

One-way from

C$ 199

Popular in

May

Cheapest in

July

Average price

C$ 382
8/6-14/6
  • 8/6-14/6
  • 3 total stops
  • 55h 51m total
  • Hamilton to Illinois
Search Deals
1/6
  • 1/6
  • 1 total stop
  • 29h 09m total
  • Hamilton to Illinois
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (C$ 5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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 13 May 2026.
Use the filters below to find and compare flights from Hamilton to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Tue 23/6

6:55 p.m.-4:40 p.m.

1 stop22h 45m

Chicago O'Hare Intl

Tue 30/6

1:29 p.m.-11:13 p.m.

2 stops32h 44m

C$ 1,062

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 3/7

8:50 a.m.-10:35 a.m.

2 stops26h 45m

Chicago O'Hare Intl

Sun 5/7

8:52 a.m.-9:43 a.m.

3 stops23h 51m

C$ 1,226

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 4/6

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

2 stops23h 55m

Chicago O'Hare Intl

Mon 8/6

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

2 stops28h 04m

C$ 1,300
Quickest round-trip

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 25/6

6:35 p.m.-10:16 a.m.

3 stops16h 41m

Chicago O'Hare Intl

Thu 2/7

8:35 a.m.-7:39 p.m.

2 stops10h 04m

C$ 1,328

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 6/8

8:50 a.m.-10:44 a.m.

2 stops26h 54m

Chicago O'Hare Intl

Sun 9/8

5:30 p.m.-8:25 p.m.

3 stops25h 55m

C$ 1,384

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sat 23/5

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

1 stop23h 30m

Chicago O'Hare Intl

Tue 26/5

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

1 stop22h 45m

C$ 1,396

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sat 4/7

6:15 a.m.-3:30 p.m.

2 stops10h 15m

Chicago O'Hare Intl

Sun 5/7

5:30 p.m.-8:25 p.m.

3 stops25h 55m

C$ 1,433

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 3/7

8:50 a.m.-10:35 a.m.

2 stops26h 45m

Chicago O'Hare Intl

Tue 7/7

5:30 p.m.-7:39 p.m.

2 stops25h 09m

C$ 1,437

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Wed 3/6

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

2 stops23h 55m

Chicago O'Hare Intl

Mon 8/6

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

2 stops28h 04m

C$ 1,552
Cheapest one-way
Quickest one-way

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 28/5

5:30 a.m.-9:00 a.m.

1 stop4h 30m

C$ 223

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/5

Showing 1-10 of 20 resultsSorted by cheapest first
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
No data available for this route at this time. Please check back soon.

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 13 May 2026.
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
11,026 reviews
Check prices

Overall

7.1

Crew

7.8

Food

6.3

Boarding

7.3

Entertainment

6.8

Comfort

7.1

Reviews

1 / 20
6.0
Good

Thomas,Apr 2026

YYZ - LHR

Food is sub par. I travel a lot and AC food is not good
Air Canada
7.1
Good
11,026 reviews
Air Canada
7.1
Good
11,026 reviews
Check prices

Overall

7.1

Crew

7.8

Food

6.3

Boarding

7.3

Entertainment

6.8

Comfort

7.1

Reviews

1 / 20
6.0
Good

Thomas,Apr 2026

YYZ - LHR

Food is sub par. I travel a lot and AC food is not good

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.

See more FAQs

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Alternative routes for Hamilton to Illinois

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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 13 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 265AverageC$ 470FlexibilityNo 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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