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

San Jose, CA (SJC) to Denver, CO (DEN) flight delay odds

80.5% of 2,579 official scheduled SJC-to-DEN flights arrived on time; 12.1% arrived at least 30 minutes late and 0.4% 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
80.5%arrived on time
12.1%30+ min late
0.4%cancelled
2,579scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.7%all scheduled flights
120+ minutes late1.7%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+3.4 mincompleted flights

Which departure time was most reliable for SJC to DEN?

Among qualifying SJC-to-DEN departure window results, Early morning had the highest on-time rate: 93.9% of 890 flights. Afternoon was lowest at 72.1% across 1,146 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning89093.9%2.7%0.7%
Late morning16979.9%11.2%0.0%
Afternoon1,14672.1%17.8%0.3%
Evening37374.3%17.7%0.3%

Which weekday was most reliable for SJC to DEN?

Among qualifying SJC-to-DEN weekday results, Saturday had the highest on-time rate: 86.7% of 316 flights. Thursday was lowest at 74.8% across 389 flights.

DayFlightsOn time30+ minCancelled
Monday39378.1%14.8%0.0%
Tuesday34083.2%10.0%0.3%
Wednesday35485.6%11.0%0.3%
Thursday38974.8%15.9%0.3%
Friday39877.1%12.6%1.0%
Saturday31686.7%7.9%0.6%
Sunday38979.7%11.6%0.5%

Which airline was most reliable for SJC to DEN?

Among qualifying SJC-to-DEN airline results, United Airlines had the highest on-time rate: 87.7% of 998 flights. Southwest Airlines was lowest at 75.7% across 1,527 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,52775.7%14.5%0.5%
United Airlines99887.7%8.5%0.4%
Frontier Airlines5481.5%13.0%0.0%

Which month was most reliable for SJC to DEN?

Among qualifying SJC-to-DEN month results, January 2026 had the highest on-time rate: 92.6% of 189 flights. June 2026 was lowest at 63.8% across 221 flights.

MonthFlightsOn time30+ minCancelled
July 202524966.7%24.9%0.8%
August 202523272.0%17.7%0.0%
September 202526481.4%11.7%0.4%
October 202524686.6%9.8%0.4%
November 202524889.5%5.6%0.4%
December 202521782.9%9.2%0.0%
January 202618992.6%2.6%0.5%
February 202617787.0%7.3%1.7%
March 202617286.0%11.6%0.0%
April 202616785.0%7.2%0.6%
May 202619777.2%9.6%0.5%
June 202622163.8%23.5%0.0%

What drove SJC to DEN delay minutes?

National airspace was the largest recorded SJC-to-DEN delay category, accounting for 37.8% of 27,200 BTS-attributed delay minutes during July 2025–June 2026.

Airline25.6%
Late aircraft34.3%
National airspace37.8%
Weather1.7%
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.