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1,196 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 73%.

Best time to leave 9–10 am 89% arrive on time from LGA
Best single flight DL 5643 LGA 08:39 → SDF 11:02 · 87% on time Avoid DL 5636 LGA 18:20 → SDF 20:58 · 69% on time

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).

7
8
9
10
11
12
13
14
15
16
17
18
19
LGA
89
91
89
88
85
89
72
83
72
74
% 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.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Delta (incl. Endeavor, SkyWest, Republic) 1,157 81% 3.9% 61 min
American (incl. Republic) 39 – 0.0% 69 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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.
DL 5643flown by Republic LGA 08:39 SDF 11:02 87%
DL 5637flown by Republic LGA 11:05 SDF 13:32 86%
DL 5636flown by Republic LGA 18:20 SDF 20:58 69%

All 5 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.
DL 5643flown by Republic LGA 08:39 SDF 11:02 2h 28m 265 87% 2.3% 40 min
DL 5637flown by Republic LGA 11:05 SDF 13:32 2h 27m 192 86% 1.6% 48 min
DL 4851flown by Endeavor LGA 14:35 SDF 17:11 2h 36m 43 60% 7.0% 63 min
DL 5651flown by Republic LGA 16:10 SDF 18:49 2h 37m 122 83% 5.7% 54 min
DL 5636flown by Republic LGA 18:20 SDF 20:58 2h 38m 182 69% 7.1% 70 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.
Delta LGA SDF 2h 32m 81% 3.9% 1,157 Flying now
American LGA SDF 2h 23m 76%few flights 0.0% 39 Not 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