What should you know about the cheapest time to fly Canada to the USA?
Timing is the biggest factor in how much you pay to fly from Canada to the United States. The cheapest month to fly is generally September, followed by January, while Tuesdays and Wednesdays are usually the cheapest days. For most cross-border routes, booking 4–8 weeks ahead secures the best fare.
Which months are cheapest to fly Canada to the US?
September is typically the cheapest month for Canada-to-US flights, as summer travel ends and demand falls. January is the next cheapest, once the holiday rush is over. The most expensive periods are the summer months, the December holidays and March break.
Which days of the week are cheapest?
Departing on a Tuesday or Wednesday is usually cheaper than flying on a Friday or Sunday, when both business and leisure demand peak. Early-morning and late-evening flights also tend to cost less than convenient mid-day departures.
How far ahead should you book?
For short cross-border routes, fares are usually lowest 4–8 weeks before departure. For peak travel dates and longer routes, book up to three months ahead. Booking too early rarely helps, and booking inside two weeks almost always costs more. The same pattern holds across most cross-border routes.
Seasons and dates to avoid
If price is your priority, avoid the busiest dates: the days around the December holidays, March break, US long weekends and the peak summer months. Shifting your trip by even a few days around these dates can produce a noticeably lower fare.
Book at the right time with Metairfare
Compare fares and browse more routes in our Canada-to-USA flights guide, or contact Metairfare to book.
Frequently Asked Questions
What is the cheapest month to fly from Canada to the US?
September is generally the cheapest month, followed by January.
What is the cheapest day of the week to fly?
Tuesdays and Wednesdays are usually the cheapest days to depart.
How far in advance should I book a Canada to US flight?
Book 4 to 8 weeks ahead for short routes, and up to three months ahead for peak travel dates.
When is it most expensive to fly Canada to the US?
Summer, the December holidays and March break are the most expensive periods.