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

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

72.1% of 365 official scheduled DEN-to-BTM flights arrived on time; 19.2% arrived at least 30 minutes late and 1.6% 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
72.1%arrived on time
19.2%30+ min late
1.6%cancelled
365scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.9%all scheduled flights
120+ minutes late4.7%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+21.6 mincompleted flights

Which departure time was most reliable for DEN to BTM?

Only Evening met the DEN-to-BTM departure window threshold: 71.9% of 363 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Evening36371.9%19.3%1.7%

Which weekday was most reliable for DEN to BTM?

Among qualifying DEN-to-BTM weekday results, Tuesday had the highest on-time rate: 83.0% of 53 flights. Sunday was lowest at 63.5% across 52 flights.

DayFlightsOn time30+ minCancelled
Monday5273.1%15.4%0.0%
Tuesday5383.0%13.2%3.8%
Wednesday5273.1%21.2%1.9%
Thursday5265.4%23.1%0.0%
Friday5265.4%21.2%1.9%
Saturday5280.8%13.5%1.9%
Sunday5263.5%26.9%1.9%

Which airline was most reliable for DEN to BTM?

Only SkyWest Airlines met the DEN-to-BTM airline threshold: 72.1% of 365 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines36572.1%19.2%1.6%

Which month was most reliable for DEN to BTM?

Among qualifying DEN-to-BTM month results, November 2025 had the highest on-time rate: 96.7% of 30 flights. June 2026 was lowest at 50.0% across 30 flights.

MonthFlightsOn time30+ minCancelled
July 20253158.1%22.6%16.1%
August 20253151.6%35.5%0.0%
September 20253086.7%10.0%0.0%
October 20253180.6%6.5%0.0%
November 20253096.7%3.3%0.0%
December 20253177.4%12.9%0.0%
January 20263180.6%16.1%0.0%
February 20262878.6%14.3%0.0%
March 20263180.6%16.1%3.2%
April 20263070.0%20.0%0.0%
May 20263154.8%38.7%0.0%
June 20263050.0%33.3%0.0%

What drove DEN to BTM delay minutes?

Airline was the largest recorded DEN-to-BTM delay category, accounting for 35.9% of 10,679 BTS-attributed delay minutes during July 2025–June 2026.

Airline35.9%
Late aircraft32.0%
National airspace18.4%
Weather13.7%
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.