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

Tucson, AZ (TUS) to Denver, CO (DEN) flight delay odds

82.2% of 2,754 official scheduled TUS-to-DEN flights arrived on time; 11.3% arrived at least 30 minutes late and 0.6% 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 SIGNALLower disruption
82.2%arrived on time
11.3%30+ min late
0.6%cancelled
2,754scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.2%all scheduled flights
120+ minutes late2.3%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+4.6 mincompleted flights

Which departure time was most reliable for TUS to DEN?

Among qualifying TUS-to-DEN departure window results, Early morning had the highest on-time rate: 92.5% of 922 flights. Afternoon was lowest at 71.1% across 988 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning92292.5%3.9%0.3%
Late morning67884.8%8.6%0.9%
Afternoon98871.1%20.1%0.8%
Evening16681.3%10.2%0.0%

Which weekday was most reliable for TUS to DEN?

Among qualifying TUS-to-DEN weekday results, Saturday had the highest on-time rate: 84.9% of 344 flights. Friday was lowest at 80.2% across 415 flights.

DayFlightsOn time30+ minCancelled
Monday40980.7%12.2%0.5%
Tuesday37982.1%11.9%1.1%
Wednesday36982.9%9.8%0.3%
Thursday40781.8%12.5%0.7%
Friday41580.2%12.8%0.7%
Saturday34484.9%7.8%0.6%
Sunday43183.5%11.1%0.5%

Which airline was most reliable for TUS to DEN?

Among qualifying TUS-to-DEN airline results, SkyWest Airlines had the highest on-time rate: 85.7% of 621 flights. Southwest Airlines was lowest at 79.5% across 1,202 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,20279.5%12.6%0.6%
United Airlines83684.0%10.3%0.6%
SkyWest Airlines62185.7%9.5%0.6%
Frontier Airlines9580.0%14.7%1.1%

Which month was most reliable for TUS to DEN?

Among qualifying TUS-to-DEN month results, January 2026 had the highest on-time rate: 89.8% of 254 flights. July 2025 was lowest at 68.3% across 164 flights.

MonthFlightsOn time30+ minCancelled
July 202516468.3%23.8%1.2%
August 202519172.3%18.8%0.0%
September 202519381.3%13.0%1.0%
October 202525686.3%7.8%0.4%
November 202526487.9%4.5%3.0%
December 202527181.9%11.4%0.4%
January 202625489.8%6.3%0.4%
February 202624682.9%12.2%0.8%
March 202627579.6%13.1%0.0%
April 202626087.7%8.5%0.0%
May 202623382.0%10.3%0.0%
June 202614776.9%12.9%0.0%

What drove TUS to DEN delay minutes?

Airline was the largest recorded TUS-to-DEN delay category, accounting for 33.2% of 32,509 BTS-attributed delay minutes during July 2025–June 2026.

Airline33.2%
Late aircraft30.7%
National airspace29.3%
Weather6.8%
Security0.1%
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.