Direct flights from Denver to Buffalo DEN → BUF
Southwest Airlines and United Airlines operate nonstop flights from Denver (DEN) to Buffalo (BUF). The nonstop flight takes around ~2h 44m, covering 1,356 miles (2,182 km) and operates daily. Updated 28 June 2026.
DEN
→
BUF
Round trip
1 adult
Economy
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Southwest Airlines
WN
United Airlines
UA
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Frequently asked questions
Is there a direct flight from Denver to Buffalo?
Yes, Southwest Airlines and United Airlines operate nonstop flights from Denver (DEN) to Buffalo (BUF).
Which airlines fly direct from Denver to Buffalo?
Southwest Airlines, United Airlines operate nonstop flights from Denver to Buffalo.
How long is the flight from Denver to Buffalo?
The nonstop flight from Denver to Buffalo takes ~2h 44m (approximately 2182 km).
How often do direct flights operate from Denver to Buffalo?
Nonstop flights from Denver to Buffalo operate daily.