Cheap flights from Toronto to Chicago O'hare International Airport from £148

from as little as £148

3 nights in Chicago, departing Toronto Lester B. Pearson International Airport on 03 / Oct / 2025 with Air Canada (price found 14 hours ago)

Subject to availability, prices correct of the last 24 hours
Chicago O'hare International Airport

The Toronto / Chicago O'hare International Airport route

All 719 km of it

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from £208 pp
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Chicago O'hare International Airport

03 / Oct / 2025 is currently the lowest priced day of the year to fly the Toronto/Chicago O'hare International Airport route.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

-9 °C

AVG

10 °C

HIGHEST

29 °C

Rainfall (mm)
LOWEST

43.2 mm

AVG

78.5 mm

HIGHEST

124.5 mm

Key facts about Chicago O'hare International Airport

How to get cheap flights from Toronto to Chicago O'hare International Airport

Tips and advice from our flight experts

But, remember that Chicago O'hare International Airport is only one of the airports in Chicago – searching for flights from ‘Toronto’ to ‘Chicago’ will give you more options, and possibly lower prices.

We compare every airline that flies from Toronto to Chicago, so that you can find the best value flights.

Prices vary throughout the year but, right now, the cheapest date to fly is 03 / Oct / 2025. If you're looking for a budget break to the USA and are flexible on dates, search for flights by month to find the best offers.

We don't just compare flight prices. If you need to book accommodation for your trip, or you want to hire a car to explore the USA, we've got some options for you to compare. Plus, when you sort your flights and hotel in one booking, you could save even more.

Other popular destinations near Chicago O'hare International Airport

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