$28 Cheap Flights to Ottawa, IL

There are 150 US cities where you can fly to Ottawa nonstop from. Compare your options by using the "Direct flights only" filter on Expedia and choose the ideal departure point for your trip. Here are a handful of the major cities to jet off from:

• New York
• Washington
• Dallas
• Boston
• Phoenix

Book in advance or look for a cheap flight to Ottawa during the off-season, such as December and January. Jetting off on a Thursday could also save you 16% on average compared to a Sunday flight.* The Expedia app makes it even easier to know when to book. Just activate the toggle for "Watch prices" and you'll receive a notification as soon as fares go down.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Secure the travel dates you want and a price that suits your budget by booking your domestic flight to Ottawa up to 28 days in advance. Lock in tickets between two and four months ahead if you're jetting to Ottawa from an international destination.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

You can generally find cheap flights to Ottawa on Sundays. You can save around 8% on average compared to those who book on a Friday, which is typically the most expensive day to buy tickets.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.