Is SDF–FNT running on time right now?
Mostly on schedule. The departure side at SDF is the weaker end, route health score 72/100. The airports section above carries the live status and delay window at both ends.
live
Direct flights from Louisville (SDF) to Flint (FNT) run nonstop between the two airports. The nonstop covers 559 km, an estimated 1 hour 13 minutes in the air.
SDF
Louisville
busy · +21
FNT
Flint
tracking
559 km · ~1h 13m est.
Running clean · 0 airlines · nonstop
72 / 100
route health from live SDF and FNT delay boards
Search live fares for this route →Flight time~1h 13mestimated from route distance
Airports right now
live boardsnext sweep in 120s
How the Louisville to Flint route actually runs
Pro Flight Search tracks every published board update for nonstop SDF to FNT flights: 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. Fares link straight to the operating airline with no markups.
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 Flint (FNT) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SDF-FNT
SDF to FNT questions
How long is the flight from SDF to FNT?
Great-circle distance is 559 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 69–78 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 FNT, 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.
.