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

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

80.4% of 693 official scheduled PHX-to-STS flights arrived on time; 8.5% 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 SIGNALLower disruption
80.4%arrived on time
8.5%30+ min late
0.3%cancelled
693scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.8%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.7%did not reach as scheduled
Average arrival+2.6 mincompleted flights

Which departure time was most reliable for PHX to STS?

Among qualifying PHX-to-STS departure window results, Afternoon had the highest on-time rate: 84.5% of 330 flights. Late morning was lowest at 76.5% across 362 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning36276.5%9.7%0.0%
Afternoon33084.5%7.3%0.6%

Which weekday was most reliable for PHX to STS?

Among qualifying PHX-to-STS weekday results, Wednesday had the highest on-time rate: 85.3% of 95 flights. Sunday was lowest at 74.0% across 104 flights.

DayFlightsOn time30+ minCancelled
Monday10474.0%13.5%1.0%
Tuesday9479.8%6.4%0.0%
Wednesday9585.3%3.2%0.0%
Thursday10084.0%7.0%0.0%
Friday10181.2%9.9%1.0%
Saturday9585.3%7.4%0.0%
Sunday10474.0%11.5%0.0%

Which airline was most reliable for PHX to STS?

Among qualifying PHX-to-STS airline results, Envoy Air had the highest on-time rate: 87.7% of 397 flights. American Airlines was lowest at 68.6% across 35 flights.

AirlineFlightsOn time30+ minCancelled
Envoy Air39787.7%4.5%0.5%
SkyWest Airlines26170.9%13.8%0.0%
American Airlines3568.6%14.3%0.0%

Which month was most reliable for PHX to STS?

Among qualifying PHX-to-STS month results, March 2026 had the highest on-time rate: 93.5% of 62 flights. June 2026 was lowest at 56.7% across 60 flights.

MonthFlightsOn time30+ minCancelled
July 20256160.7%16.4%0.0%
August 20256288.7%0.0%0.0%
September 20255685.7%7.1%1.8%
October 20256170.5%11.5%0.0%
November 20255188.2%5.9%2.0%
December 20254881.2%6.2%0.0%
January 20266288.7%1.6%0.0%
February 20265592.7%1.8%0.0%
March 20266293.5%3.2%0.0%
April 20265683.9%8.9%0.0%
May 20265976.3%15.3%0.0%
June 20266056.7%23.3%0.0%

What drove PHX to STS delay minutes?

Airline was the largest recorded PHX-to-STS delay category, accounting for 50.2% of 6,216 BTS-attributed delay minutes during July 2025–June 2026.

Airline50.2%
Late aircraft32.2%
National airspace14.9%
Weather2.7%
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.