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

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

73.2% of 3,839 official scheduled DEN-to-SMF flights arrived on time; 16.6% arrived at least 30 minutes late and 0.3% 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
73.2%arrived on time
16.6%30+ min late
0.3%cancelled
3,839scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.6%all scheduled flights
120+ minutes late2.7%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+10.0 mincompleted flights

Which departure time was most reliable for DEN to SMF?

Among qualifying DEN-to-SMF departure window results, Early morning had the highest on-time rate: 91.5% of 744 flights. Night was lowest at 55.1% across 254 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning74491.5%4.3%0.1%
Late morning78680.8%8.9%0.3%
Afternoon1,04972.1%17.3%0.2%
Evening1,00659.5%27.0%0.5%
Night25455.1%32.7%1.2%

Which weekday was most reliable for DEN to SMF?

Among qualifying DEN-to-SMF weekday results, Wednesday had the highest on-time rate: 77.7% of 538 flights. Thursday was lowest at 69.6% across 573 flights.

DayFlightsOn time30+ minCancelled
Monday59972.0%19.0%0.0%
Tuesday51977.6%14.1%0.4%
Wednesday53877.7%14.1%0.4%
Thursday57369.6%18.0%0.2%
Friday60970.4%17.1%0.8%
Saturday44774.3%16.1%0.0%
Sunday55472.0%17.3%0.5%

Which airline was most reliable for DEN to SMF?

Among qualifying DEN-to-SMF airline results, Frontier Airlines had the highest on-time rate: 80.9% of 173 flights. Southwest Airlines was lowest at 65.7% across 1,868 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,86865.7%21.5%0.3%
United Airlines1,79780.3%12.1%0.3%
Frontier Airlines17380.9%10.4%0.6%
SkyWest Airlines1100.0%0.0%0.0%

Which month was most reliable for DEN to SMF?

Among qualifying DEN-to-SMF month results, November 2025 had the highest on-time rate: 85.6% of 319 flights. June 2026 was lowest at 59.0% across 376 flights.

MonthFlightsOn time30+ minCancelled
July 202538462.5%28.1%1.3%
August 202535274.1%16.5%1.1%
September 202534476.2%13.4%0.0%
October 202533677.7%10.4%0.0%
November 202531985.6%8.2%0.3%
December 202530368.6%22.1%0.0%
January 202626481.4%11.0%0.0%
February 202625981.5%12.0%0.4%
March 202629174.2%15.5%0.7%
April 202628973.4%15.2%0.0%
May 202632271.4%16.8%0.0%
June 202637659.0%25.3%0.0%

What drove DEN to SMF delay minutes?

Late aircraft was the largest recorded DEN-to-SMF delay category, accounting for 55.5% of 57,182 BTS-attributed delay minutes during July 2025–June 2026.

Airline33.9%
Late aircraft55.5%
National airspace9.5%
Weather1.0%
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.