Is SDF–TYS running on time right now?
Some delays possible. The departure side at SDF is the weaker end, route health score 54/100. The airports section above carries the live status and delay window at both ends.
live
Direct flights from Louisville (SDF) to Knoxville/Maryville (TYS) run nonstop between the two airports. No cancellations were recorded across the 2 tracked flights. The nonstop covers 305 km, an estimated 53 minutes in the air. Measured by Pro Flight Search from live flight boards at Louisville and Knoxville/Maryville. Updated 6 November 2026 at 20:03 UTC.
SDF
Louisville
heavy · +35
TYS
Knoxville/Maryville
tracking
305 km · ~0h 53m est.
Under pressure · 0 airlines · nonstop
54 / 100
route health from live SDF and TYS delay boards
0 of 2 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Flight time~0h 53mestimated from route distance
History
operated legs · board outcomes11-061I344departed+0
11-06NXC2222departed+0
Actual 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 Louisville to Knoxville/Maryville route actually runs
Pro Flight Search records official board updates for nonstop SDF to TYS 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: Louisville (SDF) to Knoxville/Maryville (TYS) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SDF-TYS
SDF to TYS questions
How long is the flight from SDF to TYS?
Great-circle distance is 305 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 52–56 min gate-to-gate on this route.
What does the route health score measure?
A blend of departure-side delay at SDF and arrival-side delay at TYS, 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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