What is the cheapest airline that flies from Hamilton to Illinois?

WestJet is the most popular carrier operating from Hamilton to Illinois

Which airlines fly to Illinois?

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Illinois from Hamilton, Ontario according to our data. Air Canada is the first choice among our users, with 64% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Hamilton Airport to Illinois?

Prices for flights from Hamilton Airport to Illinois are updated daily.

How many operators does momondo search for flights from Hamilton Airport to Illinois?

The number of operators available for flights from Hamilton Airport to Illinois is 1 as of September 2025.

How old do you have to be to fly from Hamilton Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Hamilton Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 196 Cheap Flights from Hamilton to Illinois in 2025/26

1 adult

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Find the cheapest flights from Hamilton, Ontario to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

6:00 a.m. - 4:43 p.m.YHM-ORD

11h 43m1 stop

2:20 p.m. - 5:17 p.m.ORD-YHM

25h 57m1 stop

C$ 354WestJet

Find Deal

Sat, 25 Oct - Sun, 26 Oct

6:00 a.m. - 4:43 p.m.YHM-ORD

11h 43m1 stop

2:20 p.m. - 5:17 p.m.ORD-YHM

25h 57m1 stop

C$ 355WestJet

Find Deal

Fri, 17 Oct - Sun, 26 Oct

6:00 a.m. - 4:43 p.m.YHM-ORD

11h 43m1 stop

5:30 p.m. - 12:40 a.m.ORD-YHM

30h 10m1 stop

C$ 379WestJet

Find Deal

Sun, 12 Oct - Sun, 19 Oct

6:00 a.m. - 4:43 p.m.YHM-ORD

11h 43m1 stop

5:30 p.m. - 12:40 a.m.ORD-YHM

30h 10m1 stop

C$ 387WestJet

Find Deal

Sun, 12 Oct - Sun, 19 Oct

6:00 a.m. - 4:43 p.m.YHM-ORD

11h 43m1 stop

5:30 p.m. - 11:59 p.m.ORD-YHM

29h 29m2 stops

C$ 410Multiple Airlines

Find Deal

Sun, 12 Oct - Sun, 19 Oct

6:00 a.m. - 4:43 p.m.YHM-ORD

11h 43m1 stop

5:30 p.m. - 12:40 a.m.ORD-YHM

30h 10m1 stop

C$ 424WestJet

Find Deal

Fri, 17 Oct - Sun, 19 Oct

6:00 a.m. - 4:43 p.m.YHM-ORD

11h 43m1 stop

5:30 p.m. - 11:59 p.m.ORD-YHM

29h 29m2 stops

C$ 450Multiple Airlines

Find Deal

Sun, 12 Oct - Sun, 19 Oct

12:10 p.m. - 4:43 p.m.YHM-ORD

29h 33m1 stop

9:54 p.m. - 4:44 p.m.ORD-YHM

41h 50m2 stops

C$ 493Multiple Airlines

Find Deal

Thu, 16 Oct - Mon, 20 Oct

12:10 p.m. - 4:43 p.m.YHM-ORD

29h 33m1 stop

5:30 p.m. - 9:19 p.m.ORD-YHM

26h 49m1 stop

C$ 558Multiple Airlines

Find Deal

Thu, 16 Oct - Mon, 20 Oct

7:55 p.m. - 2:35 p.m.YHM-ORD

43h 40m2 stops

2:20 p.m. - 11:55 p.m.ORD-YHM

32h 35m1 stop

C$ 595Multiple Airlines

Find Deal

Fri, 31 Oct - Fri, 7 Nov

WestJet flights from Hamilton, Ontario to Illinois

Our best WestJet deals on Hamilton, Ontario to Illinois flight tickets

WestJet

25 Oct

YHM6:00 a.m.Hamilton

11h 43m

1 stop

ORD4:43 p.m.Chicago O'Hare Intl

26 Oct

ORD2:20 p.m.Chicago O'Hare Intl

25h 57m

1 stop

YHM5:17 p.m.Hamilton

C$ 354

Find similar

WestJet

17 Oct

YHM6:00 a.m.Hamilton

11h 43m

1 stop

ORD4:43 p.m.Chicago O'Hare Intl

26 Oct

ORD2:20 p.m.Chicago O'Hare Intl

25h 57m

1 stop

YHM5:17 p.m.Hamilton

C$ 355

Find similar

WestJet

12 Oct

YHM6:00 a.m.Hamilton

11h 43m

1 stop

ORD4:43 p.m.Chicago O'Hare Intl

19 Oct

ORD5:30 p.m.Chicago O'Hare Intl

30h 10m

1 stop

YHM12:40 a.m.Hamilton

C$ 379

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Hamilton, Ontario to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sat 25/10

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Chicago O'Hare Intl

Sun 26/10

2:20 p.m.-5:17 p.m.

1 stop25h 57m

C$ 354

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 17/10

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Chicago O'Hare Intl

Sun 26/10

2:20 p.m.-5:17 p.m.

1 stop25h 57m

C$ 355

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 12/10

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Chicago O'Hare Intl

Sun 19/10

5:30 p.m.-12:40 a.m.

1 stop30h 10m

C$ 379

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 12/10

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Chicago O'Hare Intl

Sun 19/10

5:30 p.m.-12:40 a.m.

1 stop30h 10m

C$ 387

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 12/10

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Chicago O'Hare Intl

Sun 19/10

5:30 p.m.-11:59 p.m.

2 stops29h 29m

C$ 410

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 17/10

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Chicago O'Hare Intl

Sun 19/10

5:30 p.m.-12:40 a.m.

1 stop30h 10m

C$ 424

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 12/10

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Chicago O'Hare Intl

Sun 19/10

5:30 p.m.-11:59 p.m.

2 stops29h 29m

C$ 450

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 16/10

12:10 p.m.-4:43 p.m.

1 stop29h 33m

Chicago O'Hare Intl

Mon 20/10

9:54 p.m.-4:44 p.m.

2 stops41h 50m

C$ 493

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Thu 16/10

12:10 p.m.-4:43 p.m.

1 stop29h 33m

Chicago O'Hare Intl

Mon 20/10

5:30 p.m.-9:19 p.m.

1 stop26h 49m

C$ 558

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 31/10

7:55 p.m.-2:35 p.m.

2 stops43h 40m

Chicago O'Hare Intl

Fri 7/11

2:20 p.m.-11:55 p.m.

1 stop32h 35m

C$ 595

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Hamilton, Ontario to Illinois

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

Prices

Airlines

What is the cheapest month to fly to Illinois?

In general, September is the cheapest month to fly from Hamilton, Ontario to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 305. If you don’t want to visit Illinois in September, then you should wait until June to fly from Hamilton, Ontario, when ticket prices are also cheap, with an average price of C$ 309.

What is the cheapest day to depart on your flight to Illinois?

According to our data, Sunday is the cheapest day to fly to Illinois from Hamilton, Ontario. The lowest ticket price found for a Sunday departure recently was C$ 356. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Illinois is Tuesday, with ticket prices averaging around C$ 579.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is at noon. Flights from Hamilton, Ontario to Illinois during this time can be as low as C$ 371. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 517 on average. Flights to Illinois from Hamilton, Ontario in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Cheap Hamilton, Ontario to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hamilton, Ontario to Illinois

Direct flights	None

There are no direct flights from Hamilton, Ontario to Illinois. There are no popular flight routes from Hamilton, Ontario to Illinois.

Search flight deals

When did momondo last update prices for flights from Hamilton Airport to Illinois?
Prices for flights from Hamilton Airport to Illinois are updated daily.
How many operators does momondo search for flights from Hamilton Airport to Illinois?
The number of operators available for flights from Hamilton Airport to Illinois is 1 as of September 2025.
How old do you have to be to fly from Hamilton Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Hamilton Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Hamilton, Ontario to Illinois

Compare and see reviews for airlines that fly from Hamilton, Ontario to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 304	Free Cancellation	Rating 7.1 10,000 reviews		Search Air Canada flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Hamilton.

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

Yes. momondo allows you to filter the results for Hamilton to Illinois flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Illinois from Hamilton. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Hamilton to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.