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

Sacramento, CA (SMF) to Denver, CO (DEN) flight delay odds

81.7% of 3,834 official scheduled SMF-to-DEN flights arrived on time; 11.0% 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
81.7%arrived on time
11.0%30+ min late
0.4%cancelled
3,834scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.2%all scheduled flights
120+ minutes late1.3%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+3.2 mincompleted flights

Which departure time was most reliable for SMF to DEN?

Among qualifying SMF-to-DEN departure window results, Early morning had the highest on-time rate: 94.3% of 1,225 flights. Evening was lowest at 71.9% across 540 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,22594.3%1.9%0.3%
Late morning59588.1%6.9%0.7%
Afternoon1,47472.4%17.0%0.3%
Evening54071.9%19.6%0.7%

Which weekday was most reliable for SMF to DEN?

Among qualifying SMF-to-DEN weekday results, Saturday had the highest on-time rate: 85.2% of 446 flights. Friday was lowest at 78.4% across 606 flights.

DayFlightsOn time30+ minCancelled
Monday59879.9%13.0%0.3%
Tuesday51982.9%9.4%0.6%
Wednesday54083.9%8.7%0.4%
Thursday57379.4%13.1%0.3%
Friday60678.4%12.4%0.3%
Saturday44685.2%9.6%0.7%
Sunday55283.9%9.6%0.4%

Which airline was most reliable for SMF to DEN?

Among qualifying SMF-to-DEN airline results, United Airlines had the highest on-time rate: 87.6% of 1,797 flights. Southwest Airlines was lowest at 76.2% across 1,864 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,86476.2%13.9%0.3%
United Airlines1,79787.6%7.9%0.5%
Frontier Airlines17380.9%10.4%0.6%

Which month was most reliable for SMF to DEN?

Among qualifying SMF-to-DEN month results, October 2025 had the highest on-time rate: 89.9% of 335 flights. July 2025 was lowest at 68.2% across 384 flights.

MonthFlightsOn time30+ minCancelled
July 202538468.2%21.1%1.0%
August 202535277.0%13.9%1.4%
September 202534481.1%11.3%0.0%
October 202533589.9%4.8%0.0%
November 202531786.1%6.9%0.6%
December 202530273.8%14.6%0.7%
January 202626284.0%8.8%0.0%
February 202626087.3%8.1%0.8%
March 202629184.5%10.7%0.0%
April 202629086.9%7.9%0.0%
May 202632185.4%8.1%0.3%
June 202637681.4%12.0%0.0%

What drove SMF to DEN delay minutes?

Late aircraft was the largest recorded SMF-to-DEN delay category, accounting for 43.2% of 36,309 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.5%
Late aircraft43.2%
National airspace31.5%
Weather1.8%
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.