Allegiant AirG4
Flights G48000 07:30 Mo
live
Direct flights from Des Moines (DSM) to Knob Noster (SZL): 1 nonstop departure observed each week across 1 airline. The nonstop covers 312 km, an estimated 54 minutes in the air. Measured by Pro Flight Search from live flight boards at Des Moines and Knob Noster. Updated 22 September 2026 at 12:46 UTC.
DSM
Des Moines
smooth · +12
SZL
Knob Noster
tracking
312 km · ~0h 54m est.
Running clean · 1 airline · 1x weekly · nonstop
84 / 100
route health from live DSM and SZL delay boards
Flight time~0h 54mestimated from route distance
Weekly departures1x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Allegiant Air
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 boardsnext sweep in 120s
How the Des Moines to Knob Noster route actually runs
Pro Flight Search records official board updates for nonstop DSM to SZL 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 — Des Moines (DSM) to Knob Noster (SZL) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/DSM-SZL
DSM to SZL questions
Is DSM–SZL running on time right now?
Smooth skies ahead. The departure side at DSM is the weaker end, route health score 84/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from DSM to SZL?
Great-circle distance is 312 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 52–57 min gate-to-gate on this route.
How often does DSM–SZL fly?
Allegiant Air runs the route with about 1 flight a week (mon). 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 DSM and arrival-side delay at SZL, 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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