The flight distance from Boulder Municipal Airport (WBU) in Boulder, United States to Toronto / Lester B. Pearson International Airport (YYZ) in Mississauga, Canada is 2,149 kilometers (1,336 miles / 1,161 nautical miles). The estimated flight time for this route is approximately 4h, flying east northeast at a heading of 71°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is an international route connecting United States with Canada. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 14:43 in Boulder, it's 16:43 in Mississauga.

There is a significant elevation difference of 4,719 feet between the two airports. Toronto / Lester B. Pearson International Airport sits lower than Boulder Municipal Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Mississauga (YYZ) to Boulder (WBU) follows a heading of 268° (west). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Boulder Municipal Airport (WBU) and Toronto / Lester B. Pearson International Airport (YYZ) detail pages, or use our flight duration calculator to compare other routes.