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Showing Southwest only (incl. its regional partners)All airlines ×
506 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

The nonstop is quickest: Southwest BNA → SDF (1h 00m), on time 72% of the time. Southwest via Midway (3h 55m) is more reliable, 93%, but takes 2h 55m longer.

Best time to leave 1–2 pm 87% arrive on time from BNA

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

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BNA
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% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.

No Southwest flight on this route ran 150+ times in the year.

All 3 Southwest flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.

WN 670 BNA 10:05 SDF 12:00 55m 26 85% 0.0% 30 min
WN 650 BNA 10:10 SDF 12:05 55m 16 69% 0.0% 39 min
WN 671 BNA 20:30 SDF 22:25 58m 56 32% 0.0% 66 min

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.

Southwest BNA SDF 1h 00m 72% 0.4% 506 Flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON