Southwest AirlinesWN100% on time
Flights WN235 09:20 Sa · WN345 10:35 Mo Th Fr · WN1915 varies Su
live
Direct flights from Denver (DEN) to Santa Rosa (STS): 5 nonstop departures observed each week across 1 airline. 100% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 2 minutes early. No cancellations were recorded across the 5 tracked flights. The nonstop covers 1,568 km, an estimated 2 hours 31 minutes in the air. Measured by Pro Flight Search from live flight boards at Denver and Santa Rosa. Updated 15 September 2026 at 01:18 UTC.
DEN
Denver
smooth · +4
STS
Santa Rosa
tracking
1,568 km · ~2h 31m est.
Runs reliable · 1 airline · 5x weekly · nonstop
100% on time
of the last 5 operated DEN → STS flights arrived within 15 minutes
Median arrival delay is −2 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−2 minacross the last 5 operated legs
Flight time~2h 31mestimated from route distance
Weekly departures5x1 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 boardsnext sweep in 120s
How the Denver to Santa Rosa route actually runs
Pro Flight Search records official board updates for nonstop DEN to STS 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 — Denver (DEN) to Santa Rosa (STS) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/DEN-STS
DEN to STS questions
Is DEN–STS running on time right now?
Smooth skies ahead. The departure side at DEN is the weaker end, route health score 92/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on DEN–STS?
Operators schedule morning departures around 09:20 from DEN. Earlier flights typically land before destination-airport delays accumulate later in the day; check the STS delay card to confirm conditions when you'd arrive.
How long is the flight from DEN to STS?
Great-circle distance is 1,568 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 141–164 min gate-to-gate on this route.
How often does DEN–STS fly?
Southwest Airlines runs the route with about 5 flights a week (sun, mon, thu, fri, sat). Since one carrier owns the route, a single disruption tends to ripple through the day.
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