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

Butte, MT (BTM) to Denver, CO (DEN) flight delay odds

81.6% of 365 official scheduled BTM-to-DEN flights arrived on time; 13.4% arrived at least 30 minutes late and 0.3% 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 SIGNALLower disruption
81.6%arrived on time
13.4%30+ min late
0.3%cancelled
365scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.8%all scheduled flights
120+ minutes late3.0%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+6.2 mincompleted flights

Which departure time was most reliable for BTM to DEN?

Only Late morning met the BTM-to-DEN departure window threshold: 81.6% of 365 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Late morning36581.6%13.4%0.3%

Which weekday was most reliable for BTM to DEN?

Among qualifying BTM-to-DEN weekday results, Sunday had the highest on-time rate: 90.4% of 52 flights. Monday was lowest at 73.1% across 52 flights.

DayFlightsOn time30+ minCancelled
Monday5273.1%19.2%0.0%
Tuesday5379.2%17.0%0.0%
Wednesday5288.5%9.6%0.0%
Thursday5278.8%13.5%0.0%
Friday5278.8%13.5%0.0%
Saturday5282.7%13.5%1.9%
Sunday5290.4%7.7%0.0%

Which airline was most reliable for BTM to DEN?

Only SkyWest Airlines met the BTM-to-DEN airline threshold: 81.6% of 365 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines36581.6%13.4%0.3%

Which month was most reliable for BTM to DEN?

Among qualifying BTM-to-DEN month results, November 2025 had the highest on-time rate: 96.7% of 30 flights. March 2026 was lowest at 67.7% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253190.3%3.2%0.0%
August 20253171.0%22.6%0.0%
September 20253093.3%3.3%0.0%
October 20253187.1%9.7%0.0%
November 20253096.7%0.0%0.0%
December 20253174.2%16.1%0.0%
January 20263183.9%16.1%0.0%
February 20262885.7%10.7%0.0%
March 20263167.7%22.6%3.2%
April 20263076.7%13.3%0.0%
May 20263183.9%16.1%0.0%
June 20263070.0%26.7%0.0%

What drove BTM to DEN delay minutes?

Airline was the largest recorded BTM-to-DEN delay category, accounting for 75.6% of 5,531 BTS-attributed delay minutes during July 2025–June 2026.

Airline75.6%
Late aircraft3.6%
National airspace19.3%
Weather1.5%
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.