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Cheap flights from Hamilton, ON to Chicago O'Hare Intl Airport from C$ 175

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 24/2. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — ORD
26 Nov — 3 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Hamilton to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Hamilton (YHM) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 October 2025.

Round-trip from

C$ 483

One-way from

C$ 175

Popular in

January

Cheapest in

April

Average price

C$ 375
10/12-17/12
  • 10/12-17/12
  • 4 total stops
  • 27h 09m total
  • Hamilton to Chicago
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Air Canada
  • Air Canada
  • 24/2
  • 1 total stop
  • 5h 20m total
  • Hamilton to Chicago
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 59 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 27 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 O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Hamilton to O'Hare Intl
Explore the most affordable flight options available from Hamilton to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 October 2025.

Wed 10/127:00 a.m.YHM - ORD
3 stops18h 09mMultiple Airlines
Wed 17/125:00 a.m.ORD - YHM
1 stop9h 00mMultiple Airlines
Deal found 26/10C$ 483
Thu 11/126:10 p.m.YHM - ORD
1 stop20h 25mMultiple Airlines
Thu 18/1212:09 p.m.ORD - YHM
1 stop25h 11mMultiple Airlines
Deal found 26/10C$ 595
Fri 5/127:55 p.m.YHM - ORD
3 stops25h 06mMultiple Airlines
Sun 7/129:06 p.m.ORD - YHM
2 stops25h 41mMultiple Airlines
Deal found 26/10C$ 789
Tue 25/118:15 a.m.YHM - ORD
3 stops22h 17mMultiple Airlines
Tue 2/123:43 p.m.ORD - YHM
3 stops31h 04mMultiple Airlines
Deal found 26/10C$ 816

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hamilton to O'Hare Intl 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 27 October 2025.
Use the filters below to find and compare flights from Hamilton to Chicago O'Hare Intl Airport that are best for you.

Fly from

Hamilton

Fly to

O'Hare Intl

Route

Depart

Return

Price

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Wed 10/12

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

3 stops18h 09m

Chicago O'Hare Intl

Wed 17/12

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

1 stop9h 00m

C$ 483

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 11/12

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

1 stop20h 25m

Chicago O'Hare Intl

Thu 18/12

12:09 p.m.-2:20 p.m.

1 stop25h 11m

C$ 595

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 5/12

7:55 p.m.-8:01 p.m.

3 stops25h 06m

Chicago O'Hare Intl

Sun 7/12

9:06 p.m.-11:47 p.m.

2 stops25h 41m

C$ 789

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Tue 25/11

8:15 a.m.-5:32 a.m.

3 stops22h 17m

Chicago O'Hare Intl

Tue 2/12

3:43 p.m.-11:47 p.m.

3 stops31h 04m

C$ 816

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Tue 24/2

3:10 p.m.-7:30 p.m.

1 stop5h 20m

C$ 175

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 4/12

6:30 p.m.-10:05 p.m.

1 stop4h 35m

C$ 214

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Wed 4/2

7:25 a.m.-11:42 p.m.

1 stop17h 17m

C$ 242

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Wed 10/12

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

3 stops18h 09m

C$ 253

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 25/1

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

1 stop20h 25m

C$ 264

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 15/1

7:25 a.m.-11:42 p.m.

1 stop17h 17m

C$ 308

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 13 results
1
2

Best time to book a flight from Hamilton to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 Chicago O'Hare Intl Airport

What is the cheapest month to book a flight from Hamilton, Ontario to Chicago O'Hare Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Hamilton, Ontario to Chicago O'Hare Intl Airport (average of C$ 118). Flying from Hamilton, Ontario to Chicago O'Hare Intl Airport in February is currently the most expensive (average of C$ 309). 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 O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 27 October 2025.
See what other customers who have flown with Air Canada from Hamilton to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,370 reviews
Check prices

Comfort

7.1

Overall

7.1

Boarding

7.3

Crew

7.8

Food

6.3

Entertainment

6.8

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
10,370 reviews
Air Canada
7.1
Good
10,370 reviews
Check prices

Comfort

7.1

Overall

7.1

Boarding

7.3

Crew

7.8

Food

6.3

Entertainment

6.8

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 O'Hare Intl. 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 Chicago O'Hare Intl?

    Hamilton (YHM), located 10.9 km from the city centre, is the airport you fly out of when you book flights from Hamilton to Chicago O'Hare Intl. 1 airline have flights from Hamilton to Chicago O'Hare Intl on a regular basis. Booking flights from Hamilton to Chicago O'Hare Intl should not be difficult; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day.

  • What is the cheapest airline to fly from Hamilton, Ontario to Chicago O'Hare Intl Airport round-trip?

    Flying on Air Canada is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at C$ 308. You may be able to fly from Hamilton, Ontario to Chicago O'Hare Intl Airport for 29% less than the average price by searching for this airline.

  • Can I find deals for flights from Hamilton to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Hamilton to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Hamilton to O'Hare Intl?

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

  • Can I find deals for business class flights from Hamilton to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Hamilton to O'Hare Intl 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 Chicago O'Hare Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Hamilton, Ontario to Chicago O'Hare Intl Airport (average of C$ 118). Flying from Hamilton, Ontario to Chicago O'Hare Intl Airport in February is currently the most expensive (average of C$ 309). 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

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Evanston
Des Plaines
Elk Grove Village
Skokie
Downers Grove
Naperville
Bolingbrook
Romeoville

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Top airline flying from Hamilton to O'Hare Intl

Discover the top airline that operate flights from Hamilton to O'Hare Intl. 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 27 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 308AverageC$ 385FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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How does Cheapflights help users find flights from Hamilton to O'Hare Intl?

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Can Cheapflights find flights from Hamilton to O'Hare Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Hamilton to O'Hare Intl flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Hamilton to O'Hare Intl become cheaper?

Yes, Cheapflights offers price alerts on Hamilton to O'Hare Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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