In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What is the cheapest time of day to fly from YHM to ORD?

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.

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. 0 airlines 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.

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.

C$ 372+ Cheap Flights from Hamilton, ON to Chicago O'Hare Intl Airport

Cheap flight deals from Hamilton to O'Hare Intl

Enter your travel dates to find the best prices.

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Best

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One-way

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 10 September 2026.

Thu 1/106:05 a.m. -

3 stops35h 35m

Sun 4/105:30 p.m. -

3 stops23h 05m

Deal found 8/9C$ 652

Sat 10/106:55 p.m. -

2 stops16h 17m

Sun 18/107:54 p.m. -

2 stops26h 19m

Deal found 5/9C$ 813

Sun 11/105:45 p.m. -

2 stops23h 55m

Sun 18/108:04 a.m. -

1 stop30h 51m

Deal found 8/9C$ 829

Thu 1/1011:45 a.m. -

3 stops29h 55m

Mon 5/105:30 p.m. -

3 stops27h 55m

Deal found 7/9C$ 833

Sat 26/96:05 a.m. -

3 stops35h 35m

Tue 29/95:30 p.m. -

2 stops24h 59m

Deal found 8/9C$ 836

Fri 16/1011:45 a.m. -

3 stops23h 27m

Mon 19/105:30 p.m. -

2 stops20h 35m

Deal found 5/9C$ 837

Find flight deals from Hamilton to O'Hare Intl

Round-trip from	C$ 652
One-way from	C$ 372
Popular in	October
Cheapest in	February
Average price	C$ 364

1/10-4/10
6 total stops
58h 40m total
Hamilton to Chicago

Search Deals

30/9-31/12
1 total stop
9h 47m total
Hamilton to Chicago

Search Deals

Highest demand for flights based on searches. 1% potential increase in price (C$ 8 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 0% potential price decrease (C$ 4 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

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Cheapflights Fare Finder

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 Hamilton - ORD Chicago O'Hare Intl

YHMORD

Hamilton

Thu 1/10

7:00 a.m.-4:40 p.m.

2 stops34h 40m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 408

HamiltonChicago

YHM Hamilton - ORD Chicago O'Hare Intl

YHMORD

Hamilton

Sat 10/10

5:45 p.m.-4:40 p.m.

2 stops23h 55m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 454

Quickest round-trip

HamiltonChicago

YHM Hamilton - ORD Chicago O'Hare Intl

YHMORD

Hamilton

Thu 22/10

6:10 p.m.-4:40 p.m.

1 stop23h 30m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 509

HamiltonChicago

YHM Hamilton - ORD Chicago O'Hare Intl

YHMORD

Hamilton

Sun 4/10

5:45 p.m.-4:40 p.m.

3 stops23h 55m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 645

HamiltonChicago

YHM Hamilton - ORD Chicago O'Hare Intl

YHMORD

Hamilton

Wed 23/9

6:10 p.m.-4:40 p.m.

1 stop23h 30m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 692

HamiltonChicago

YHM Hamilton - ORD Chicago O'Hare Intl

YHMORD

Hamilton

Thu 1/10

6:10 p.m.-4:40 p.m.

1 stop23h 30m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 700

HamiltonChicago

YHM Hamilton - ORD Chicago O'Hare Intl

YHMORD

Hamilton

Mon 28/9

6:10 p.m.-4:40 p.m.

1 stop23h 30m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 797

HamiltonChicago

YHM Hamilton - ORD Chicago O'Hare Intl

YHMORD

Hamilton

Sun 4/10

6:10 p.m.-4:40 p.m.

1 stop23h 30m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 815

HamiltonChicago

YHM Hamilton - ORD Chicago O'Hare Intl

YHMORD

Hamilton

Thu 15/10

3:45 p.m.-4:40 p.m.

3 stops25h 55m

Chicago O'Hare Intl

Mon 19/10

5:30 p.m.-10:25 p.m.

3 stops27h 55m

C$ 851

HamiltonChicago

YHM Hamilton - ORD Chicago O'Hare Intl

YHMORD

Hamilton

Thu 1/10

5:45 p.m.-4:40 p.m.

2 stops23h 55m

Chicago O'Hare Intl

Mon 5/10

5:30 p.m.-10:34 p.m.

2 stops28h 04m

C$ 858

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

Showing 1-10 of 17 resultsSorted by cheapest first

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.

YHM-ORD

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.

Related info for your journey

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. 0 airlines 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.
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.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Hamilton to O'Hare Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Hamilton to O'Hare Intl?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to O'Hare Intl from Hamilton.

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?

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Cheap flights from Hamilton, ON to Chicago O'Hare Intl Airport from C$ 372

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Hamilton to O'Hare Intl

Cheapest flights from Hamilton to O'Hare IntlExplore 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 10 September 2026.

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 10 September 2026.

Best flights from Hamilton to O'Hare IntlDiscover carefully curated flight deals from Hamilton to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Discover carefully curated flight deals from Hamilton to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Last-minute flights from Hamilton to O'Hare IntlDiscover last-minute flight deals from Hamilton to O'Hare Intl. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from Hamilton to O'Hare Intl. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Hamilton to O'Hare IntlSearch for one-way flight options from Hamilton to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Search for one-way flight options from Hamilton to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Find flight deals from Hamilton to O'Hare Intl

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Use the filters below to find and compare flights from Hamilton to Chicago O'Hare Intl Airport that are best for you.

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.

Related info for your journey

What airport do you fly from for flights from Hamilton to Chicago O'Hare Intl?

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

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

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

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

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Alternative routes for Hamilton to O'Hare Intl

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Complete your trip

Complete your trip to O'Hare Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Illinois

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Other flights to O'Hare Intl

Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 September 2026.

Hamilton and O'Hare Intl flights

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Why should you use Cheapflights to find cheap flight tickets from Hamilton to O'Hare Intl?

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

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

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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 10 September 2026.

Best flights from Hamilton to O'Hare Intl
Discover carefully curated flight deals from Hamilton to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Last-minute flights from Hamilton to O'Hare Intl
Discover last-minute flight deals from Hamilton to O'Hare Intl. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Hamilton to O'Hare Intl
Search for one-way flight options from Hamilton to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.