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O'Hare Intl

$175+ 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 3/22. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — ORD
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap 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 January 21, 2026.

This Mytrip deal was found by Cheapflights users on 1/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:25 am
YHM
-
ORD
1 stop14h 48m
Multiple Airlines
Wed 2/258:16 pm
ORD
-
YHM
1 stop17h 44m
Multiple Airlines
Deal found 1/21$321
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:25 am
YHM
-
ORD
1 stop11h 56m
Multiple Airlines
Wed 4/18:41 pm
ORD
-
YHM
1 stop17h 19m
Multiple Airlines
Deal found 1/20$328
This Booking.com deal was found by Cheapflights users on 1/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/57:25 am
YHM
-
ORD
1 stop14h 38m
Multiple Airlines
Sun 2/85:15 am
ORD
-
YHM
1 stop8h 45m
Multiple Airlines
Deal found 1/21$349
This Kiwi.com deal was found by Cheapflights users on 1/21. 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 3/37:00 am
YHM
-
ORD
1 stop11h 46m
Multiple Airlines
Mon 3/92:20 pm
ORD
-
YHM
1 stop9h 51m
Multiple Airlines
Deal found 1/21$350
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/257:25 am
YHM
-
ORD
2 stops11h 21m
Multiple Airlines
Wed 2/258:16 pm
ORD
-
YHM
1 stop17h 44m
Multiple Airlines
Deal found 1/20$370
This Mytrip deal was found by Cheapflights users on 1/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/57:25 am
YHM
-
ORD
1 stop12h 46m
Multiple Airlines
Thu 3/125:05 am
ORD
-
YHM
1 stop8h 55m
Multiple Airlines
Deal found 1/19$388
This Mytrip deal was found by Cheapflights users on 1/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/37:00 am
YHM
-
ORD
3 stops17h 47m
Multiple Airlines
Thu 2/55:15 am
ORD
-
YHM
1 stop8h 45m
Multiple Airlines
Deal found 1/19$397
This Mytrip deal was found by Cheapflights users on 1/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:25 am
YHM
-
ORD
1 stop14h 38m
Multiple Airlines
Sat 2/75:32 pm
ORD
-
YHM
2 stops19h 48m
Multiple Airlines
Deal found 1/19$409
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:25 am
YHM
-
ORD
1 stop17h 22m
Multiple Airlines
Mon 2/165:15 am
ORD
-
YHM
1 stop8h 45m
Multiple Airlines
Deal found 1/20$417

Find 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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$321
(Mytrip)

One-way from

$175
(oojo)

Popular in

July

Cheapest in

April

Average price

$358
Provider with most accurate pricing for Hamilton-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Hamilton-Chicago O'Hare Intl flights.
Search Deals
From Hamilton to Chicago O'Hare Intl
Search Deals
One-way flight from Hamilton to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 21, 2026.
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 2/18

7:25 am-9:13 pm

1 stop14h 48m

Chicago O'Hare Intl

Wed 2/25

8:16 pm-3:00 pm

1 stop17h 44m

$321

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Wed 3/25

7:25 am-6:21 pm

1 stop11h 56m

Chicago O'Hare Intl

Wed 4/1

8:41 pm-3:00 pm

1 stop17h 19m

$328

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Tue 3/3

7:00 am-5:46 pm

1 stop11h 46m

Chicago O'Hare Intl

Mon 3/9

2:20 pm-1:11 am

1 stop9h 51m

$350

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Wed 2/25

7:25 am-5:46 pm

2 stops11h 21m

Chicago O'Hare Intl

Wed 2/25

8:16 pm-3:00 pm

1 stop17h 44m

$370

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 3/5

7:25 am-7:11 pm

1 stop12h 46m

Chicago O'Hare Intl

Thu 3/12

5:05 am-3:00 pm

1 stop8h 55m

$388

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Tue 2/3

7:00 am-11:47 pm

3 stops17h 47m

Chicago O'Hare Intl

Thu 2/5

5:15 am-3:00 pm

1 stop8h 45m

$397

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 2/5

7:25 am-7:41 pm

2 stops13h 16m

Chicago O'Hare Intl

Sun 2/8

5:15 am-3:00 pm

1 stop8h 45m

$408

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Wed 2/4

7:25 am-9:03 pm

1 stop14h 38m

Chicago O'Hare Intl

Sat 2/7

5:32 pm-2:20 pm

2 stops19h 48m

$409

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 2/12

7:25 am-11:47 pm

1 stop17h 22m

Chicago O'Hare Intl

Mon 2/16

5:15 am-3:00 pm

1 stop8h 45m

$417

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 3/22

6:10 pm-1:35 pm

1 stop20h 25m

$175

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 20 results
1
2
  • Most accurate provider: When it comes to deals on Hamilton, Ontario-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hamilton, Ontario-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hamilton, Ontario-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Hamilton, Ontario-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Hamilton, Ontario-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $82). Flying from Hamilton, Ontario to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $193). 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.

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.

  • 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 $82). Flying from Hamilton, Ontario to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $193). 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
Naperville
Gurnee
Elgin
Hoffman Estates
Beloit
Delavan
Oak Brook
Downers Grove
Des Plaines
Elk Grove Village
Skokie
Libertyville
Lake Geneva
Bridgeview
Kenosha
Warrenville
Waukegan
Aurora

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