Nonstop flights from Denver to Buffalo

2 airlines fly this route, with up to 3 flights a day.

DENDenver International

1,356 mi · 15 flights a week

BUFBuffalo Niagara International

DENBUF

When they leave

Denver time

10:45a5:35pFirst departure 10:45 AM, last 5:35 PM

Two in the morning, 10:45 AM to 11:10 AM, then two in the afternoon, 1:40 PM to 4:05 PM, then two in the evening, 5:25 PM to 5:35 PM.

Every flight

Earliest first

10:45 AM→3:50 PMSouthwest AirlinesUntil Mar 10, 2027Boeing 737Sun
11:10 AM→4:15 PMSouthwest AirlinesUntil Mar 10, 2027Boeing 737 MAX 8Sat
1:40 PM→6:45 PMSouthwest AirlinesUntil Mar 10, 2027Boeing 737-700Tue, Wed
4:05 PM→9:10 PMSouthwest AirlinesUntil Mar 10, 2027Boeing 737Mon, Thu, Fri
5:25 PM→10:37 PMUnited AirlinesUntil Nov 30, back Dec 17Boeing 737Daily
5:35 PM→10:45 PMSouthwest AirlinesUntil Mar 10, 2027Boeing 737-700Sat

Schedules last checked Sep 19, 2026. Times are local.

Flying from Denver to Buffalo

Southwest Airlines flies most often, 1 to 2 times a day on the Boeing 737, Boeing 737-700 and Boeing 737 MAX 8. United Airlines flies daily on the Boeing 737.

Flights run every day of the week, 3 on Saturdays and 2 on the other days. The first arrival in Buffalo is at 3:50 PM and the last at 10:45 PM. The flight covers 1,356 miles.

Southwest Airlines flies it until Mar 10, 2027. United Airlines flies it until Nov 30 and is back on Dec 17.

Flying back, Buffalo to Denver has 13 nonstop flights a week.

Return flights

Buffalo to DenverView

Find the cheapest day to fly from Denver to Buffalo.

Schedules as of Oct 9, 2026.