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O'Hare Intl

$130+ Cheap flights from Hamilton, ON (YHM) to O'Hare Intl (ORD)

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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — ORD
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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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 August 20, 2025.

Round-trip from

$271
(oojo)

One-way from

$130
(Flightnetwork)

Popular in

August

Cheapest in

April

Average price

$473
From Hamilton to Chicago O'Hare Intl
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One-way flight from Hamilton to Chicago O'Hare Intl
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Highest demand for flights based on searches. 25% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Hamilton to O'Hare Intl

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 August 20, 2025.

This oojo deal was found by Cheapflights users on 8/18. 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.
Sat 10/186:00 amYHM - ORD
1 stop11h 43mWestJet
Sun 10/195:30 pmORD - YHM
1 stop30h 10mWestJet
Deal found 8/18$271
This oojo deal was found by Cheapflights users on 8/19. 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.
Fri 10/36:00 amYHM - ORD
1 stop11h 43mWestJet
Fri 10/105:30 pmORD - YHM
1 stop30h 10mWestJet
Deal found 8/19$289
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Sat 10/42:55 pmYHM - ORD
2 stops26h 48mMultiple Airlines
Sat 10/115:30 pmORD - YHM
1 stop30h 10mMultiple Airlines
Deal found 8/19$317
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Fri 10/176:00 amYHM - ORD
1 stop11h 43mMultiple Airlines
Tue 10/213:12 pmORD - YHM
2 stops32h 28mMultiple Airlines
Deal found 8/18$373
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Sat 10/186:00 amYHM - ORD
1 stop11h 43mMultiple Airlines
Tue 10/213:12 pmORD - YHM
2 stops32h 28mMultiple Airlines
Deal found 8/18$375
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Tue 10/77:05 amYHM - ORD
2 stops17h 54mMultiple Airlines
Fri 10/105:30 pmORD - YHM
1 stop30h 10mMultiple Airlines
Deal found 8/18$378
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Thu 10/166:00 amYHM - ORD
1 stop11h 43mMultiple Airlines
Tue 10/213:12 pmORD - YHM
2 stops32h 28mMultiple Airlines
Deal found 8/18$386
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Mon 10/66:00 amYHM - ORD
2 stops24h 25mMultiple Airlines
Fri 10/105:30 pmORD - YHM
1 stop30h 10mMultiple Airlines
Deal found 8/18$396
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Mon 10/206:00 amYHM - ORD
1 stop11h 43mMultiple Airlines
Tue 10/218:00 amORD - YHM
2 stops14h 59mMultiple Airlines
Deal found 8/18$406
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Tue 10/77:05 amYHM - ORD
2 stops17h 54mMultiple Airlines
Thu 10/95:30 pmORD - YHM
1 stop26h 49mMultiple Airlines
Deal found 8/18$419
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Mon 10/66:00 amYHM - ORD
1 stop11h 43mWestJet
Fri 10/105:30 pmORD - YHM
1 stop30h 10mWestJet
Deal found 8/18$420
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Mon 10/66:00 amYHM - ORD
2 stops24h 25mMultiple Airlines
Thu 10/95:30 pmORD - YHM
1 stop26h 49mMultiple Airlines
Deal found 8/18$437

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 2,558,603 searches. Data last updated August 20, 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

Sat 10/18

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Sun 10/19

5:30 pm-12:40 am

1 stop30h 10m

$271

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 10/3

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Fri 10/10

5:30 pm-12:40 am

1 stop30h 10m

$289

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sat 10/4

2:55 pm-4:43 pm

2 stops26h 48m

Chicago O'Hare Intl

Sat 10/11

5:30 pm-12:40 am

1 stop30h 10m

$317

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 10/17

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Tue 10/21

3:12 pm-12:40 am

2 stops32h 28m

$373

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sat 10/18

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Tue 10/21

3:12 pm-12:40 am

2 stops32h 28m

$375

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Tue 10/7

7:05 am-11:59 pm

2 stops17h 54m

Chicago O'Hare Intl

Fri 10/10

5:30 pm-12:40 am

1 stop30h 10m

$378

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 10/16

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Tue 10/21

3:12 pm-12:40 am

2 stops32h 28m

$386

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 10/19

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Tue 10/21

3:12 pm-12:40 am

2 stops32h 28m

$386

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Mon 10/6

6:00 am-5:25 am

2 stops24h 25m

Chicago O'Hare Intl

Fri 10/10

5:30 pm-12:40 am

1 stop30h 10m

$396

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Mon 10/20

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Tue 10/21

8:00 am-11:59 pm

2 stops14h 59m

$406

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 19 results
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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, August is the cheapest month in which you can book a flight from Hamilton, Ontario to Chicago O'Hare Intl Airport (average of $245). Flying from Hamilton, Ontario to Chicago O'Hare Intl Airport 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 ORD?

Find hourly flight availability from Hamilton to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

When flying from Hamilton, Ontario to Chicago O'Hare Intl Airport, 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 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?

    For a flight from Hamilton to Chicago O'Hare Intl, you will be flying from Hamilton. Hamilton (YHM) is just 6.8 mi from the center of the city. Hamilton is the only Hamilton airport and it handles 0 outbound flights to Chicago O'Hare Intl per day. 0 airlines have flights to Chicago O'Hare Intl from Hamilton on a regular basis.

  • How long is the flight from Hamilton, Ontario to Chicago O'Hare Intl Airport?

    A quick flight from Hamilton, Ontario to Chicago O'Hare Intl Airport can take about 11h 43m. WestJet provides one of the quickest options available for as low as $271. There are 414 mi between Hamilton, Ontario and Chicago O'Hare Intl Airport.

  • 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, August is the cheapest month in which you can book a flight from Hamilton, Ontario to Chicago O'Hare Intl Airport (average of $245). Flying from Hamilton, Ontario to Chicago O'Hare Intl Airport 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

Traveling 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
Schaumburg
Rosemont
Hoffman Estates
Beloit
Skokie
Des Plaines
Elgin
Gurnee
Arlington Heights
Racine
Rockford
Great Lakes
Orland Park
Naperville
Merrillville
Elk Grove Village
Downers Grove
Evanston
Lake Geneva
Joliet

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