Santa Rosa (STS) departure delays

5,470 departures · 12 routes · January 2025 – August 2026

81.36%

Left on time

Within 15 minutes of schedule

1.65%

Cancelled

Share of departures

75 min

When late, late by

Average delayed departure

#86

Rank

Among graded US airports

What the record says about STS

STS runs about as well as the average airport here.

The airlines flying from here are not equally affected. Envoy Air left on time 6.5 points more often than Alaska Airlines from the same airport — which is the clearest evidence available that a delayed departure is not purely the airport's fault.

Which airlines run best out of STS

Airline	Departures	On time
Envoy Air	479	82.6%
SkyWest Airlines	4,146	80.4%
Southwest Airlines	296	80.4%
Alaska Airlines	409	76.1%

Routes out of STS

STS → SAN San Diego 959 flights · 76.1% on time D STS → SNA Santa Ana 746 flights · 78.51% on time C STS → LAX Los Angeles 702 flights · 83.75% on time C STS → PHX Phoenix 693 flights · 77.07% on time C STS → BUR Burbank 596 flights · 80.73% on time C STS → PDX Portland 578 flights · 90.49% on time A STS → SEA Seattle 463 flights · 74.12% on time D STS → LAS Las Vegas 315 flights · 81.47% on time B STS → DFW Dallas/Fort Worth 187 flights · 70.17% on time D STS → PSP Palm Springs 142 flights · 82.01% on time C STS → ONT Ontario 77 flights · 88.31% on time — STS → DEN Denver 12 flights · 75% on time —

Common questions

How bad are delays at Santa Rosa (STS)?

81.36% of departures from STS left within 15 minutes of schedule across 5,470 flights. That is better than most airports in this record.

Which airline is most punctual from STS?

Envoy Air, at 82.6% on time from this airport. The least punctual was Alaska Airlines at 76.1%.

How often are flights from STS cancelled?

1.65% of scheduled departures did not operate.

Month by month

Jul 2025 peak 87 Jun 2026

On-time departure rate, %