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

Santa Rosa, CA (STS) to Phoenix, AZ (PHX) flight delay odds

76.6% of 693 official scheduled STS-to-PHX flights arrived on time; 13.4% 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 SIGNALGenerally reliable
76.6%arrived on time
13.4%30+ min late
0.4%cancelled
693scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.4%all scheduled flights
120+ minutes late3.5%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+12.5 mincompleted flights

Which departure time was most reliable for STS to PHX?

Only Afternoon met the STS-to-PHX departure window threshold: 76.6% of 693 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Afternoon69376.6%13.4%0.4%

Which weekday was most reliable for STS to PHX?

Among qualifying STS-to-PHX weekday results, Saturday had the highest on-time rate: 84.2% of 95 flights. Monday was lowest at 69.2% across 104 flights.

DayFlightsOn time30+ minCancelled
Monday10469.2%19.2%1.0%
Tuesday9478.7%13.8%1.1%
Wednesday9581.1%5.3%0.0%
Thursday10077.0%13.0%0.0%
Friday10170.3%19.8%1.0%
Saturday9584.2%7.4%0.0%
Sunday10476.9%14.4%0.0%

Which airline was most reliable for STS to PHX?

Among qualifying STS-to-PHX airline results, Envoy Air had the highest on-time rate: 81.6% of 397 flights. SkyWest Airlines was lowest at 69.3% across 261 flights.

AirlineFlightsOn time30+ minCancelled
Envoy Air39781.6%10.6%0.5%
SkyWest Airlines26169.3%17.6%0.4%
American Airlines3574.3%14.3%0.0%

Which month was most reliable for STS to PHX?

Among qualifying STS-to-PHX month results, February 2026 had the highest on-time rate: 94.5% of 55 flights. June 2026 was lowest at 56.7% across 60 flights.

MonthFlightsOn time30+ minCancelled
July 20256162.3%21.3%0.0%
August 20256291.9%3.2%0.0%
September 20255678.6%10.7%1.8%
October 20256168.9%19.7%0.0%
November 20255174.5%13.7%2.0%
December 20254875.0%14.6%0.0%
January 20266277.4%8.1%0.0%
February 20265594.5%3.6%0.0%
March 20266283.9%12.9%0.0%
April 20265683.9%8.9%0.0%
May 20265972.9%16.9%0.0%
June 20266056.7%26.7%1.7%

What drove STS to PHX delay minutes?

Late aircraft was the largest recorded STS-to-PHX delay category, accounting for 52.4% of 11,625 BTS-attributed delay minutes during July 2025–June 2026.

Airline30.4%
Late aircraft52.4%
National airspace14.1%
Weather2.8%
Security0.3%
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.