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

Denver, CO (DEN) to Bismarck/Mandan, ND (BIS) flight delay odds

75.4% of 1,502 official scheduled DEN-to-BIS flights arrived on time; 16.3% arrived at least 30 minutes late and 0.7% 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
75.4%arrived on time
16.3%30+ min late
0.7%cancelled
1,502scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.3%all scheduled flights
120+ minutes late4.1%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+12.8 mincompleted flights

Which departure time was most reliable for DEN to BIS?

Among qualifying DEN-to-BIS departure window results, Early morning had the highest on-time rate: 83.5% of 79 flights. Evening was lowest at 69.0% across 694 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning7983.5%6.3%0.0%
Late morning36382.6%9.4%0.6%
Afternoon36479.1%14.6%0.8%
Evening69469.0%21.8%0.9%

Which weekday was most reliable for DEN to BIS?

Among qualifying DEN-to-BIS weekday results, Wednesday had the highest on-time rate: 84.5% of 220 flights. Monday was lowest at 69.1% across 220 flights.

DayFlightsOn time30+ minCancelled
Monday22069.1%20.0%0.5%
Tuesday22479.5%12.9%0.9%
Wednesday22084.5%10.5%0.5%
Thursday21674.5%16.2%0.5%
Friday22074.5%17.3%1.4%
Saturday18475.0%16.8%1.1%
Sunday21870.6%20.6%0.5%

Which airline was most reliable for DEN to BIS?

Only SkyWest Airlines met the DEN-to-BIS airline threshold: 75.4% of 1,502 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines1,50275.4%16.3%0.7%

Which month was most reliable for DEN to BIS?

Among qualifying DEN-to-BIS month results, November 2025 had the highest on-time rate: 89.7% of 116 flights. August 2025 was lowest at 64.5% across 152 flights.

MonthFlightsOn time30+ minCancelled
July 202515466.2%18.8%1.3%
August 202515264.5%26.3%0.7%
September 202513778.8%13.1%0.0%
October 202512080.8%8.3%0.0%
November 202511689.7%7.8%2.6%
December 202512268.0%24.6%0.0%
January 202611971.4%17.6%0.8%
February 202610678.3%18.9%0.0%
March 202612077.5%14.2%3.3%
April 202611977.3%10.9%0.0%
May 202612181.8%15.7%0.0%
June 202611676.7%16.4%0.0%

What drove DEN to BIS delay minutes?

Airline was the largest recorded DEN-to-BIS delay category, accounting for 41.6% of 31,093 BTS-attributed delay minutes during July 2025–June 2026.

Airline41.6%
Late aircraft33.3%
National airspace18.9%
Weather6.2%
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.