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

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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YHM
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Hamilton

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Hamilton (YHM). 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 November 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$288
(Mytrip)

One-way from

$130
(oojo)

Popular in

November

Cheapest in

September

Average price

$343
Provider with most accurate pricing for Chicago (CHI)-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Toronto (YTO) flights.
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From Chicago O'Hare Intl to Hamilton
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One-way flight from Chicago O'Hare Intl to Hamilton
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Highest demand for flights based on searches. 9% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from O'Hare Intl to Hamilton

Cheapest flights from O'Hare Intl to Hamilton
Explore the most affordable flight options available from O'Hare Intl to Hamilton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 29, 2025.

This Mytrip deal was found by Cheapflights users on 11/28. 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.
Mon 12/155:00 amORD - YHM
1 stop9h 00mMultiple Airlines
Thu 12/187:25 amYHM - ORD
1 stop12h 14mMultiple Airlines
Deal found 11/28$397
This Mytrip deal was found by Cheapflights users on 11/27. 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.
Mon 12/225:00 amORD - YHM
1 stop9h 00mMultiple Airlines
Wed 12/317:25 amYHM - ORD
1 stop12h 14mMultiple Airlines
Deal found 11/27$542
This Mytrip deal was found by Cheapflights users on 11/28. 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 12/259:09 pmORD - YHM
2 stops16h 11mMultiple Airlines
Sun 12/287:00 amYHM - ORD
1 stop8h 21mMultiple Airlines
Deal found 11/28$889

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Hamilton 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 November 29, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Hamilton that are best for you.

Fly from

O'Hare Intl

Fly to

Hamilton

Route

Depart

Return

Price

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 1/8

5:15 am-3:00 pm

1 stop8h 45m

Hamilton

Mon 1/12

7:25 am-7:38 pm

1 stop13h 13m

$288

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Mon 12/15

5:00 am-3:00 pm

1 stop9h 00m

Hamilton

Thu 12/18

7:25 am-6:39 pm

1 stop12h 14m

$397

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 2/12

5:15 am-3:00 pm

1 stop8h 45m

Hamilton

Sun 2/15

7:25 am-12:18 am

1 stop17h 53m

$419

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Mon 12/22

5:00 am-3:00 pm

1 stop9h 00m

Hamilton

Wed 12/31

7:25 am-6:39 pm

1 stop12h 14m

$542

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 12/25

9:09 pm-2:20 pm

2 stops16h 11m

Hamilton

Sun 12/28

7:00 am-2:21 pm

1 stop8h 21m

$889

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Tue 3/17

3:59 pm-5:16 pm

2 stops24h 17m

Hamilton

Sun 3/22

6:10 pm-1:35 pm

1 stop20h 25m

$1,396

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 3/18

3:59 pm-5:16 pm

2 stops24h 17m

Hamilton

Sun 3/22

6:10 pm-1:35 pm

1 stop20h 25m

$1,396

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 4/30

5:30 pm-12:40 am

1 stop30h 10m

$130

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Mon 12/15

4:38 pm-2:20 pm

2 stops20h 42m

$146

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Mon 3/16

2:20 pm-1:20 am

1 stop10h 00m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/27

Showing 1-10 of 15 results
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Best time to book a flight from O'Hare Intl to Hamilton

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

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

Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Hamilton, Ontario (average of $85). Flying from Chicago O'Hare Intl Airport to Hamilton, Ontario in July is currently the most expensive (average of $187). 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 O'Hare Intl to Hamilton. 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 into for flights to Hamilton from Chicago O'Hare Intl?

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

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Hamilton, Ontario (average of $85). Flying from Chicago O'Hare Intl Airport to Hamilton, Ontario in July is currently the most expensive (average of $187). 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.

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