The flight distance from Buffalo Niagara International Airport (BUF) in Buffalo, United States to Denver International Airport (DEN) in Denver, United States is 2,182 kilometers (1,356 miles / 1,178 nautical miles). The estimated flight time for this route is approximately 4h, flying west at a heading of 270°.

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 a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation. Despite being a domestic route, there is a 2-hour time difference between the two cities.

Time zone information: When it's 14:05 in Buffalo, it's 12:05 in Denver.

There is a significant elevation difference of 4,707 feet between the two airports. Denver International Airport sits higher than Buffalo Niagara International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Denver (DEN) to Buffalo (BUF) follows a heading of 72° (east northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Buffalo Niagara International Airport (BUF) and Denver International Airport (DEN) detail pages, or use our flight duration calculator to compare other routes.