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

Denver, CO (DEN) to Missoula, MT (MSO) flight delay odds

79.8% of 1,214 official scheduled DEN-to-MSO flights arrived on time; 11.5% 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 SIGNALGenerally reliable
79.8%arrived on time
11.5%30+ min late
0.3%cancelled
1,214scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.9%all scheduled flights
120+ minutes late2.9%all scheduled flights
Diverted0.5%did not reach as scheduled
Average arrival+5.6 mincompleted flights

Which departure time was most reliable for DEN to MSO?

Among qualifying DEN-to-MSO departure window results, Early morning had the highest on-time rate: 88.0% of 117 flights. Evening was lowest at 74.6% across 358 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning11788.0%5.1%0.0%
Late morning37882.3%8.7%0.3%
Afternoon36179.8%13.6%0.8%
Evening35874.6%14.5%0.0%

Which weekday was most reliable for DEN to MSO?

Among qualifying DEN-to-MSO weekday results, Saturday had the highest on-time rate: 84.7% of 170 flights. Friday was lowest at 75.1% across 181 flights.

DayFlightsOn time30+ minCancelled
Monday18477.2%14.1%0.0%
Tuesday17381.5%10.4%0.6%
Wednesday16876.2%14.9%1.8%
Thursday16882.1%11.9%0.0%
Friday18175.1%13.8%0.0%
Saturday17084.7%7.1%0.0%
Sunday17082.4%8.2%0.0%

Which airline was most reliable for DEN to MSO?

Among qualifying DEN-to-MSO airline results, SkyWest Airlines had the highest on-time rate: 81.6% of 474 flights. United Airlines was lowest at 78.6% across 718 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines71878.6%11.4%0.1%
SkyWest Airlines47481.6%11.6%0.6%
Frontier Airlines2281.8%13.6%0.0%

Which month was most reliable for DEN to MSO?

Among qualifying DEN-to-MSO month results, September 2025 had the highest on-time rate: 89.7% of 97 flights. December 2025 was lowest at 64.9% across 94 flights.

MonthFlightsOn time30+ minCancelled
July 202513272.0%19.7%0.0%
August 202513076.9%12.3%0.0%
September 20259789.7%5.2%0.0%
October 202512288.5%3.3%0.0%
November 20259187.9%7.7%2.2%
December 20259464.9%23.4%1.1%
January 20269375.3%14.0%1.1%
February 20268384.3%8.4%0.0%
March 20269375.3%15.1%0.0%
April 20269087.8%5.6%0.0%
May 20269387.1%8.6%0.0%
June 20269670.8%13.5%0.0%

What drove DEN to MSO delay minutes?

Late aircraft was the largest recorded DEN-to-MSO delay category, accounting for 46.3% of 14,629 BTS-attributed delay minutes during July 2025–June 2026.

Airline34.3%
Late aircraft46.3%
National airspace13.6%
Weather5.8%
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.