WN4061SouthwestIn the air, 81 min late
Left SMF at 14:56, 81 min after its 13:35 slot.
Track WN4061 →
live
Direct flights from Sacramento (SMF) to St Louis (STL): 6 nonstop departures observed each week across 1 airline. 80% of the last 5 tracked flights arrived within 15 minutes of schedule. The median arrival is 6 minutes early. No cancellations were recorded across the 7 tracked flights. The nonstop covers 2,695 km, an estimated 3 hours 57 minutes in the air. Measured by Pro Flight Search from live flight boards at Sacramento and St Louis. Updated 1 November 2026 at 23:18 UTC.
Today, SMF → STL
Sun 1 Nov · local times- 13:35 WN4061Southwest Left 14:56 +81 ·
Checked SMF board 15:18 · STL board 15:18
SMF
Sacramento
busy · +16
STL
St Louis
smooth · +0
2,695 km · ~3h 57m est.
Runs reliable · 1 airline · 6x weekly · nonstop
80% on time
of the last 5 tracked SMF → STL flights arrived within 15 minutes
Median arrival delay is −6 min. 0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−6 minacross the last 5 arrivals
Flight time~3h 57mestimated from route distance
Weekly departures6x1 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 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Conditions are tightest at SMF and STL: a 44% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +10 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Sacramento to St Louis route actually runs
Pro Flight Search records official board updates for nonstop SMF to STL 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: Sacramento (SMF) to St Louis (STL) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SMF-STL
SMF to STL questions
Is SMF–STL running on time right now?
Mostly on schedule. The departure side at SMF is the weaker end, route health score 75/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SMF–STL?
Operators schedule 3 departures from SMF. Earlier flights typically land before destination-airport delays accumulate later in the day; check the STL delay card to confirm conditions when you'd arrive.
How long is the flight from SMF to STL?
Great-circle distance is 2,695 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 220–261 min gate-to-gate on this route.
How often does SMF–STL fly?
Southwest Airlines runs the route with about 6 flights a week (sun, mon, tue, wed, thu, fri). Since one carrier owns the route, a single disruption tends to ripple through the day.
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