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

Miami, FL (MIA) to Denver, CO (DEN) flight delay odds

76.0% of 2,491 official scheduled MIA-to-DEN flights arrived on time; 14.5% 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
76.0%arrived on time
14.5%30+ min late
0.5%cancelled
2,491scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.2%all scheduled flights
120+ minutes late2.9%all scheduled flights
Diverted0.8%did not reach as scheduled
Average arrival+6.0 mincompleted flights

Which departure time was most reliable for MIA to DEN?

Among qualifying MIA-to-DEN departure window results, Early morning had the highest on-time rate: 88.1% of 791 flights. Afternoon was lowest at 66.4% across 693 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning79188.1%7.0%0.6%
Late morning37183.6%9.7%0.5%
Afternoon69366.4%21.1%0.1%
Evening48166.7%20.6%0.4%
Night15568.4%16.8%1.9%

Which weekday was most reliable for MIA to DEN?

Among qualifying MIA-to-DEN weekday results, Tuesday had the highest on-time rate: 79.1% of 316 flights. Sunday was lowest at 71.0% across 373 flights.

DayFlightsOn time30+ minCancelled
Monday37474.3%15.8%1.1%
Tuesday31679.1%12.0%1.3%
Wednesday31378.6%12.8%0.0%
Thursday36378.5%13.2%0.0%
Friday37577.1%14.7%0.3%
Saturday37774.5%15.9%0.0%
Sunday37371.0%16.6%1.1%

Which airline was most reliable for MIA to DEN?

Among qualifying MIA-to-DEN airline results, United Airlines had the highest on-time rate: 81.4% of 932 flights. Southwest Airlines was lowest at 58.2% across 323 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines93281.4%11.7%0.1%
American Airlines88574.8%15.3%0.8%
Frontier Airlines35181.2%11.1%1.4%
Southwest Airlines32358.2%24.5%0.0%

Which month was most reliable for MIA to DEN?

Among qualifying MIA-to-DEN month results, February 2026 had the highest on-time rate: 83.6% of 238 flights. August 2025 was lowest at 67.8% across 183 flights.

MonthFlightsOn time30+ minCancelled
July 202520773.9%16.9%0.5%
August 202518367.8%20.8%0.5%
September 202515877.8%13.3%0.0%
October 202517279.1%13.4%0.0%
November 202520479.4%11.8%0.0%
December 202524173.0%12.9%0.8%
January 202625375.9%15.0%2.4%
February 202623883.6%9.2%0.0%
March 202628172.2%17.8%1.1%
April 202619581.5%9.2%0.0%
May 202618079.4%13.9%0.0%
June 202617969.3%20.7%0.0%

What drove MIA to DEN delay minutes?

Late aircraft was the largest recorded MIA-to-DEN delay category, accounting for 43.1% of 38,420 BTS-attributed delay minutes during July 2025–June 2026.

Airline30.6%
Late aircraft43.1%
National airspace21.7%
Weather4.0%
Security0.6%
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.