Southwest AirlinesWN
Flights WN173 03:50 Su
live
Direct flights from San Antonio (SAT) to Sacramento (SMF): 1 nonstop departure observed each week across 1 airline. The nonstop covers 2,351 km, an estimated 3 hours 31 minutes in the air. Measured by Pro Flight Search from live flight boards at San Antonio and Sacramento. Updated 13 September 2026 at 12:53 UTC.
SAT
San Antonio
smooth · +0
SMF
Sacramento
smooth · +0
2,351 km · ~3h 31m est.
Running clean · 1 airline · 1x weekly · nonstop
100 / 100
route health from live SAT and SMF delay boards
Flight time~3h 31mestimated from route distance
Weekly departures1x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest 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 daysAirports right now
live boardsWeather lens
Current conditions put the pressure at SAT and SMF: 38% odds of a 15+ minute delay and around +7 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the San Antonio to Sacramento route actually runs
Pro Flight Search records official board updates for nonstop SAT to SMF 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 — San Antonio (SAT) to Sacramento (SMF) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SAT-SMF
SAT to SMF questions
Is SAT–SMF running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from SAT to SMF?
Great-circle distance is 2,351 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 196–232 min gate-to-gate on this route.
How often does SAT–SMF fly?
Southwest Airlines runs the route with about 1 flight a week (sun). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at SAT and arrival-side delay at SMF, 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.
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