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

Denver, CO (DEN) to San Francisco, CA (SFO) flight delay odds

65.5% of 5,415 official scheduled DEN-to-SFO flights arrived on time; 23.2% 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 SIGNALVariable
65.5%arrived on time
23.2%30+ min late
0.5%cancelled
5,415scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late12.1%all scheduled flights
120+ minutes late3.9%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+14.9 mincompleted flights

Which departure time was most reliable for DEN to SFO?

Among qualifying DEN-to-SFO departure window results, Early morning had the highest on-time rate: 77.5% of 1,189 flights. Evening was lowest at 54.1% across 1,285 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,18977.5%15.4%0.3%
Late morning93963.3%22.7%0.1%
Afternoon1,18670.9%18.1%0.4%
Evening1,28554.1%33.2%0.7%
Night81660.4%26.7%0.9%

Which weekday was most reliable for DEN to SFO?

Among qualifying DEN-to-SFO weekday results, Tuesday had the highest on-time rate: 73.8% of 760 flights. Thursday was lowest at 58.9% across 801 flights.

DayFlightsOn time30+ minCancelled
Monday80561.6%26.7%0.0%
Tuesday76073.8%17.4%0.1%
Wednesday74969.3%20.8%0.4%
Thursday80158.9%29.5%0.4%
Friday80763.8%24.3%0.9%
Saturday72571.0%16.6%0.8%
Sunday76860.8%26.2%0.8%

Which airline was most reliable for DEN to SFO?

Among qualifying DEN-to-SFO airline results, United Airlines had the highest on-time rate: 70.9% of 3,373 flights. Southwest Airlines was lowest at 52.3% across 1,438 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines3,37370.9%18.6%0.4%
Southwest Airlines1,43852.3%33.4%0.5%
Frontier Airlines60466.6%24.3%0.8%

Which month was most reliable for DEN to SFO?

Among qualifying DEN-to-SFO month results, March 2026 had the highest on-time rate: 81.5% of 448 flights. June 2026 was lowest at 39.3% across 494 flights.

MonthFlightsOn time30+ minCancelled
July 202546454.5%33.6%2.4%
August 202546169.0%18.9%0.2%
September 202545174.3%14.2%0.0%
October 202546070.9%16.3%0.2%
November 202543769.3%19.5%0.9%
December 202545763.9%24.7%0.2%
January 202643580.7%13.1%0.0%
February 202639974.4%17.8%0.0%
March 202644881.5%10.7%0.9%
April 202642659.4%26.5%0.5%
May 202648353.4%35.2%0.0%
June 202649439.3%43.9%0.4%

What drove DEN to SFO delay minutes?

National airspace was the largest recorded DEN-to-SFO delay category, accounting for 43.4% of 112,105 BTS-attributed delay minutes during July 2025–June 2026.

Airline20.4%
Late aircraft34.6%
National airspace43.4%
Weather1.6%
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.