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Cheap flights from Chicago O'Hare Intl Airport to Toronto from $254

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Toronto departing on 7/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Chicago O'Hare Intl Airport to Toronto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:30 pm - 5:25 pm
ORD
-
YHM
22h 55m
3 stops
Multiple Airlines Logo
6:15 am - 4:40 pm
YHM
-
ORD
35h 25m
3 stops
$562Multiple Airlines
Thu, Sep 10 - Sun, Sep 13
Multiple Airlines Logo
5:30 pm - 5:25 pm
ORD
-
YHM
22h 55m
3 stops
Multiple Airlines Logo
11:45 am - 4:40 pm
YHM
-
ORD
29h 55m
3 stops
$563Multiple Airlines
Thu, Sep 10 - Mon, Sep 14
Multiple Airlines Logo
5:30 pm - 10:09 pm
ORD
-
YHM
27h 39m
2 stops
Multiple Airlines Logo
6:15 am - 4:40 pm
YHM
-
ORD
35h 25m
3 stops
$586Multiple Airlines
Thu, Sep 10 - Sun, Sep 13
Multiple Airlines Logo
5:30 pm - 2:54 pm
ORD
-
YHM
20h 24m
2 stops
Multiple Airlines Logo
7:00 am - 4:40 pm
YHM
-
ORD
34h 40m
2 stops
$604Multiple Airlines
Mon, Jul 20 - Wed, Jul 22
Multiple Airlines Logo
5:30 pm - 2:54 pm
ORD
-
YHM
20h 24m
2 stops
Multiple Airlines Logo
6:10 am - 4:40 pm
YHM
-
ORD
35h 30m
3 stops
$607Multiple Airlines
Mon, Jul 20 - Wed, Jul 22
Multiple Airlines Logo
8:05 am - 3:55 pm
ORD
-
YHM
30h 50m
1 stop
Multiple Airlines Logo
1:55 pm - 8:30 pm
YHM
-
ORD
31h 35m
2 stops
$610Multiple Airlines
Sun, Aug 2 - Sun, Aug 9
Multiple Airlines Logo
7:52 am - 3:55 pm
ORD
-
YHM
31h 03m
1 stop
Multiple Airlines Logo
6:10 pm - 5:37 am
YHM
-
ORD
36h 27m
2 stops
$628Multiple Airlines
Fri, Jul 3 - Thu, Jul 9
Multiple Airlines Logo
5:30 pm - 2:54 pm
ORD
-
YHM
20h 24m
2 stops
Multiple Airlines Logo
9:50 am - 4:40 pm
YHM
-
ORD
31h 50m
2 stops
$649Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
Multiple Airlines Logo
5:30 pm - 7:34 pm
ORD
-
YHM
25h 04m
2 stops
Multiple Airlines Logo
7:00 am - 4:40 pm
YHM
-
ORD
34h 40m
2 stops
$650Multiple Airlines
Mon, Sep 14 - Wed, Sep 16
Multiple Airlines Logo
5:30 pm - 8:30 pm
ORD
-
YHM
26h 00m
3 stops
Multiple Airlines Logo
9:50 am - 4:40 pm
YHM
-
ORD
31h 50m
2 stops
$654Multiple Airlines
Wed, Aug 12 - Wed, Aug 19

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momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Hamilton, Ontario 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, momondo users made 832,500 searches. Data last updated June 23, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Hamilton, Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 9/10

5:30 pm-5:25 pm

3 stops22h 55m

Hamilton

Sun 9/13

6:15 am-4:40 pm

3 stops35h 25m

$562

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 9/10

5:30 pm-5:25 pm

3 stops22h 55m

Hamilton

Mon 9/14

11:45 am-4:40 pm

3 stops29h 55m

$563

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Thu 9/10

5:30 pm-10:09 pm

2 stops27h 39m

Hamilton

Sun 9/13

6:15 am-4:40 pm

3 stops35h 25m

$586

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Mon 7/20

5:30 pm-2:54 pm

2 stops20h 24m

Hamilton

Wed 7/22

7:00 am-4:40 pm

2 stops34h 40m

$604

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Mon 7/20

5:30 pm-2:54 pm

2 stops20h 24m

Hamilton

Wed 7/22

6:10 am-4:40 pm

3 stops35h 30m

$607

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Sun 8/2

8:05 am-3:55 pm

1 stop30h 50m

Hamilton

Sun 8/9

1:55 pm-8:30 pm

2 stops31h 35m

$610

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Fri 7/3

7:52 am-3:55 pm

1 stop31h 03m

Hamilton

Thu 7/9

6:10 pm-5:37 am

2 stops36h 27m

$628
Quickest round-trip

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 8/12

5:30 pm-2:54 pm

2 stops20h 24m

Hamilton

Wed 8/19

9:50 am-4:40 pm

2 stops31h 50m

$649

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Mon 9/14

5:30 pm-7:34 pm

2 stops25h 04m

Hamilton

Wed 9/16

7:00 am-4:40 pm

2 stops34h 40m

$650

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 8/12

5:30 pm-8:30 pm

3 stops26h 00m

Hamilton

Wed 8/19

9:50 am-4:40 pm

2 stops31h 50m

$654

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Toronto from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Hamilton, Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Chicago O'Hare Intl to Hamilton?

WestJet is the most popular carrier operating from Chicago O'Hare Intl to Hamilton

What airlines fly to Hamilton, Ontario?

United Airlines, Air Canada and American Airlines are the top three most popular airlines that fly to Hamilton, Ontario from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Hamilton, Ontario. Keep in mind that there are 6 different airlines that fly to Hamilton, Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Chicago O'Hare Intl Airport to Hamilton, Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Hamilton, Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Hamilton, Ontario (ORD to YHM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Hamilton, Ontario

Fastest flight time

9h 00m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Hamilton, Ontario takes 9h 00m
There are no direct flights from Chicago O'Hare Intl Airport to Hamilton, Ontario. There are no popular flight routes from Chicago O'Hare Intl Airport to Hamilton, Ontario.
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Hamilton, Ontario

  • How far is Chicago O'Hare Intl to Hamilton by plane?

    There are 418.4 mi between Chicago O'Hare Intl and Hamilton. Typically, this will take 9h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Hamilton Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Hamilton Airport refresh daily.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Hamilton Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Hamilton Airport.

  • What documentation or ID do you need to fly to Hamilton Airport?

    The required travel and health documents for your Hamilton Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Hamilton Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Hamilton?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Hamilton for you.

Can I find flights from Chicago to Hamilton with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Hamilton from Chicago with this policy.

How can momondo help me find flights from Chicago to Hamilton?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Hamilton from Chicago.

I’m not ready to book a flight from Chicago to Hamilton right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Chicago to Hamilton flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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