Southwest AirlinesWN
Flights WN1385 15:15 We
live
Direct flights from San Diego (NZY) to Louisville (SDF): 1 nonstop departure observed each week across 1 airline. The nonstop covers 2,901 km, an estimated 4 hours 13 minutes in the air. Measured by Pro Flight Search from live flight boards at San Diego and Louisville. Updated 27 October 2026 at 23:52 UTC.
NZY
San Diego
tracking
SDF
Louisville
smooth · +0
2,901 km · ~4h 13m est.
Running clean · 1 airline · 1x weekly · nonstop
100 / 100
route health from live NZY and SDF delay boards
Flight time~4h 13mestimated from route distance
Weekly departures1x1 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 daysAirports right now
live boardsnext sweep in 120s
How the San Diego to Louisville route actually runs
Pro Flight Search records official board updates for nonstop NZY to SDF 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 — San Diego (NZY) to Louisville (SDF) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/NZY-SDF
NZY to SDF questions
Is NZY–SDF running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from NZY to SDF?
Great-circle distance is 2,901 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 235–279 min gate-to-gate on this route.
How often does NZY–SDF fly?
Southwest Airlines runs the route with about 1 flight a week (wed). 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 NZY and arrival-side delay at SDF, 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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