What’s the cost of a flight from Chicago O'Hare to Montreal Trudeau?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Chicago and Montreal.

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

Which airports serve Chicago and Montreal?

When planning a trip of about 746 mi, it's a good idea to check flights from surrounding airports too.

• Airports in Chicago: Chicago is connected to 3 airports - Midway, O'Hare, Rockford.
• Airports in Montreal: Montreal offers flights from 2 airports - Saint-Hubert, Trudeau International.

The closest airport isn’t always the cheapest — it’s worth checking the alternatives too. In some cities, smaller airports offer lower fares than the main ones.

Smart ways to search flights from Chicago O'Hare to Montreal Trudeau

Use Jetcost to view tailored results based on what you care about — time, duration, number of stops, or even your preferred booking agency. Results include carriers like Easyjet, Ryanair, British Airways, and more.

Other popular destinations

Flying to Canada? Other travelers also searched: Calgary, Edmonton, Montreal, Toronto, Vancouver.

Prefer non-stop flights? Just activate the filter to skip unnecessary layovers. If your dates are flexible, you can also explore different departure and return combinations to find the best fit.