HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$174+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — ORD
Apr 18 — Apr 251
Sat 4/18
Sat 4/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Hamilton to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 19, 2026.

This Mytrip deal was found by Cheapflights users on 3/17. 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 4/237:25 am
YHM
-
ORD
1 stop17h 59m
Multiple Airlines
Thu 4/305:05 am
ORD
-
YHM
1 stop8h 55m
Multiple Airlines
Deal found 3/17$368
This Mytrip deal was found by Cheapflights users on 3/16. 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 4/17:25 am
YHM
-
ORD
1 stop16h 52m
Multiple Airlines
Wed 4/85:05 am
ORD
-
YHM
1 stop8h 55m
Multiple Airlines
Deal found 3/16$393
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 5/16:10 pm
YHM
-
ORD
2 stops18h 23m
Multiple Airlines
Fri 5/87:45 pm
ORD
-
YHM
1 stop19h 10m
Multiple Airlines
Deal found 3/17$475
This Mytrip deal was found by Cheapflights users on 3/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:15 am
YHM
-
ORD
1 stop17h 09m
Multiple Airlines
Sat 5/95:05 am
ORD
-
YHM
1 stop9h 50m
Multiple Airlines
Deal found 3/18$489
This Mytrip deal was found by Cheapflights users on 3/16. 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 3/307:25 am
YHM
-
ORD
1 stop13h 26m
Multiple Airlines
Thu 4/25:05 am
ORD
-
YHM
1 stop8h 55m
Multiple Airlines
Deal found 3/16$498
This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Thu 4/167:25 am
YHM
-
ORD
1 stop14h 52m
Multiple Airlines
Thu 4/235:05 am
ORD
-
YHM
1 stop8h 55m
Multiple Airlines
Deal found 3/19$513
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Wed 4/87:25 am
YHM
-
ORD
1 stop10h 50m
Multiple Airlines
Sun 4/128:58 pm
ORD
-
YHM
2 stops40h 22m
Multiple Airlines
Deal found 3/15$514
This Mytrip deal was found by Cheapflights users on 3/16. 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 4/17:25 am
YHM
-
ORD
1 stop16h 52m
Multiple Airlines
Sat 4/46:05 am
ORD
-
YHM
1 stop15h 45m
Multiple Airlines
Deal found 3/16$564

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 March 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$368
(Mytrip)

One-way from

$174
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$270
Provider with most accurate pricing for Hamilton-Chicago O'Hare Intl flight deals.
Search Deals
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. 6% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 19, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 4/23

7:25 am-12:24 am

1 stop17h 59m

Chicago O'Hare Intl

Thu 4/30

5:05 am-3:00 pm

1 stop8h 55m

$368

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 4/16

7:25 am-10:23 am

2 stops27h 58m

Chicago O'Hare Intl

Thu 4/23

5:05 am-3:00 pm

1 stop8h 55m

$540

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Wed 4/1

7:25 am-11:17 pm

1 stop16h 52m

Chicago O'Hare Intl

Sat 4/4

6:05 am-10:50 pm

1 stop15h 45m

$564

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Wed 4/8

7:25 am-5:15 pm

1 stop10h 50m

Chicago O'Hare Intl

Sun 4/12

7:17 am-3:00 pm

1 stop30h 43m

$573

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Mon 3/23

7:25 am-11:17 pm

1 stop16h 52m

Chicago O'Hare Intl

Thu 3/26

5:05 am-3:00 pm

1 stop8h 55m

$622

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 5/29

5:45 pm-4:40 pm

2 stops23h 55m

Chicago O'Hare Intl

Sun 5/31

5:30 pm-10:34 pm

2 stops28h 04m

$636

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 5/21

5:45 pm-4:40 pm

2 stops23h 55m

Chicago O'Hare Intl

Sun 5/24

5:30 pm-10:34 pm

2 stops28h 04m

$638

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Tue 5/26

7:55 pm-4:40 pm

1 stop21h 45m

Chicago O'Hare Intl

Thu 6/4

6:25 pm-10:34 pm

2 stops51h 09m

$658
Quickest round-trip

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 3/22

7:25 am-5:15 pm

1 stop10h 50m

Chicago O'Hare Intl

Thu 3/26

5:05 am-3:00 pm

1 stop8h 55m

$673

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 4/5

7:25 am-11:17 am

1 stop28h 52m

Chicago O'Hare Intl

Mon 4/13

5:05 am-3:00 pm

1 stop8h 55m

$695

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Hamilton to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Hamilton to O'Hare Intl in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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, January is the cheapest month in which you can book a flight from Hamilton, Ontario to Chicago O'Hare Intl Airport (average of $128). Flying from Hamilton, Ontario to Chicago O'Hare Intl Airport in April is currently the most expensive (average of $212). 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, January is the cheapest month in which you can book a flight from Hamilton, Ontario to Chicago O'Hare Intl Airport (average of $128). Flying from Hamilton, Ontario to Chicago O'Hare Intl Airport in April is currently the most expensive (average of $212). 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
Gurnee
Naperville
Lake Geneva
Hoffman Estates
Delavan
Downers Grove
Des Plaines
Elgin
Oak Brook
South Holland
Elk Grove Village
Libertyville
Waukegan
Beloit
Warrenville
Oakbrook Terrace
Bridgeview
Great Lakes

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Hamilton to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to O'Hare Intl flights
Pierre Elliott Trudeau Intl to O'Hare Intl flights
London to O'Hare Intl flights
London to Midway flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.