BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
DEN→GTF

Denver, CO (DEN) to Great Falls, MT (GTF) flight delay odds

77.2% of 729 official scheduled DEN-to-GTF flights arrived on time; 15.9% arrived at least 30 minutes late and 0.5% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
77.2%arrived on time
15.9%30+ min late
0.5%cancelled
729scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.9%all scheduled flights
120+ minutes late3.4%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+8.0 mincompleted flights

Which departure time was most reliable for DEN to GTF?

Among qualifying DEN-to-GTF departure window results, Late morning had the highest on-time rate: 83.3% of 365 flights. Evening was lowest at 71.2% across 364 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning36583.3%9.3%0.5%
Evening36471.2%22.5%0.5%

Which weekday was most reliable for DEN to GTF?

Among qualifying DEN-to-GTF weekday results, Monday had the highest on-time rate: 82.7% of 104 flights. Wednesday was lowest at 69.2% across 104 flights.

DayFlightsOn time30+ minCancelled
Monday10482.7%12.5%0.0%
Tuesday10679.2%17.0%0.9%
Wednesday10469.2%19.2%1.0%
Thursday10376.7%17.5%0.0%
Friday10474.0%19.2%0.0%
Saturday10476.0%13.5%1.9%
Sunday10482.7%12.5%0.0%

Which airline was most reliable for DEN to GTF?

Among qualifying DEN-to-GTF airline results, SkyWest Airlines had the highest on-time rate: 85.1% of 201 flights. United Airlines was lowest at 74.2% across 528 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines52874.2%18.6%0.4%
SkyWest Airlines20185.1%9.0%1.0%

Which month was most reliable for DEN to GTF?

Among qualifying DEN-to-GTF month results, November 2025 had the highest on-time rate: 94.9% of 59 flights. June 2026 was lowest at 53.3% across 60 flights.

MonthFlightsOn time30+ minCancelled
July 20256258.1%30.6%0.0%
August 20256272.6%22.6%1.6%
September 20256081.7%10.0%0.0%
October 20256285.5%6.5%0.0%
November 20255994.9%3.4%0.0%
December 20256285.5%9.7%0.0%
January 20266285.5%8.1%1.6%
February 20265678.6%12.5%1.8%
March 20266274.2%19.4%1.6%
April 20266090.0%6.7%0.0%
May 20266267.7%24.2%0.0%
June 20266053.3%36.7%0.0%

What drove DEN to GTF delay minutes?

Late aircraft was the largest recorded DEN-to-GTF delay category, accounting for 51.8% of 10,629 BTS-attributed delay minutes during July 2025–June 2026.

Airline28.6%
Late aircraft51.8%
National airspace14.6%
Weather4.9%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.