STS → SANSanta Rosa to San Diego

live

Direct flights from Santa Rosa (STS) to San Diego (SAN): 32 nonstop departures observed each week across 2 airlines. 100% of the last 19 tracked flights arrived within 15 minutes of schedule. The median arrival is 18 minutes early. No cancellations were recorded across the 19 tracked flights. The nonstop covers 819 km, an estimated 1 hour 33 minutes in the air. Measured by Pro Flight Search from live flight boards at Santa Rosa and San Diego. Updated 1 November 2026 at 22:39 UTC.

Today, STS → SAN

Sun 1 Nov · local times
  1. · AS2101Alaska Airlines On schedule SAN est. 15:51sched 15:52
  2. · AS3046Alaska Airlines On schedule SAN 22:05scheduled
  3. · WN3727Southwest On schedule SAN est. 17:38sched 17:50
  4. · WN4209Southwest Departed Landed 07:30 −15

Checked SAN board 14:39

STS Santa Rosa tracking
SAN San Diego busy · +22
819 km · ~1h 33m est.
dep bank 07:45–18:3532x weekly
Runs reliable · 2 airlines · 32x weekly · nonstop
100% on time

of the last 19 tracked STS → SAN flights arrived within 15 minutes

Median arrival delay is −18 min. 0 of 19 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−18 minacross the last 19 arrivals
Flight time~1h 33mestimated from route distance
Weekly departures32x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 19

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesSouthwest Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Alaska AirlinesAS100% on time

Flights AS3349 08:10 daily · AS2331 12:30 daily · AS3141 18:21 daily

Southwest AirlinesWN100% on time

Flights WN4134 varies Mo Tu We Th Fr Sa · WN4135 07:55 Su · WN3327 18:15 Su · WN3401 18:35 Mo Th Fr

History

operated legs · board outcomes
11-01WN4209arrived−15
10-31AS2331arrived−9
10-31AS3141arrived−4
10-31AS3349arrived−3
10-31WN3653arrived+0
10-30AS3349arrived−19
10-30WN4134arrived−7
10-29AS3349arrived−20
10-29WN4134arrived−18
10-28AS2331arrived−5
10-28AS3141arrived−18
10-28AS3349arrived−14
10-28WN4134arrived−23
10-27AS3141arrived−21
10-27AS3349arrived−18
10-27WN4134arrived−13
10-26AS3141arrived−18
10-26AS3349arrived−30
10-26WN4134arrived−29

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
STSSanta Rosa tracking Full STS delay board →
SANSan Diego +22 min busy 🌤 mostly cloudy · WNW 13 kt Full SAN delay board →

How the Santa Rosa to San Diego route actually runs

Pro Flight Search records official board updates for nonstop STS to SAN flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: Santa Rosa (STS) to San Diego (SAN) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/STS-SAN
How we measure this →

STS to SAN questions

Is STS–SAN running on time right now?

Mostly on schedule. The arrival side at SAN is the weaker end, route health score 70/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from STS to SAN?

Great-circle distance is 819 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 88–100 min gate-to-gate on this route.

How often does STS–SAN fly?

2 carriers operate this route, around 32 flights a week between them. Compare carrier days and times in the airline list above.

What does the route health score measure?

A blend of departure-side delay at STS and arrival-side delay at SAN, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.