Nonstop flights from Buffalo to Denver

2 airlines fly this route.

BUFBuffalo Niagara International

1,356 mi · 13 flights a week

DENDenver International

BUFDEN

When they leave

Buffalo time

6:45a5:15pFirst departure 6:45 AM, last 5:15 PM

Three in the morning, 6:45 AM to 8:55 AM, then two in the afternoon, 3:55 PM to 4:30 PM, then one evening flight at 5:15 PM.

Every flight

Earliest first

6:45 AM→8:10 AMSouthwest AirlinesUntil Mar 10, 2027Boeing 737Sat
6:50 AM→8:15 AMSouthwest AirlinesUntil Mar 10, 2027Boeing 737 MAX 8Mon, Fri
8:55 AM→10:32 AMUnited AirlinesUntil Nov 30, back Dec 17Boeing 737-800Mon, Tue, Wed, Fri, Sat, Sun
3:55 PM→5:20 PMSouthwest AirlinesUntil Mar 10, 2027Boeing 737Tue, Wed
4:30 PM→5:55 PMSouthwest AirlinesUntil Mar 10, 2027Boeing 737Sun
5:15 PM→6:40 PMSouthwest AirlinesUntil Mar 10, 2027Boeing 737 MAX 8Sat

Schedules last checked Sep 20, 2026. Times are local.

Flying from Buffalo to Denver

Southwest Airlines flies most often, 7 times a week on the Boeing 737 and Boeing 737 MAX 8. United Airlines flies 6 times a week on the Boeing 737-800.

Flights run every day except Thursdays, up to 3 a day. The first arrival in Denver is at 8:10 AM and the last at 6:40 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, Denver to Buffalo has 15 nonstop flights a week.

Return flights

Denver to BuffaloView

Find the cheapest day to fly from Buffalo to Denver.

Schedules as of Oct 9, 2026.