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1,532 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Delta’s DTW → BUF flights land within a few points of 4 in 5 on time whatever the hour.

Best time to leave 7–8 am 89% arrive on time from DTW

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
20
21
22
DTW
87
76
81
82
85
71
80
78
84
58
% 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) 1,532 80% 1.4% 97 min

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 flight on this route ran 150+ times in the year.

All 8 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 3639flown by SkyWest DTW 07:07 BUF 08:23 1h 16m 54 93% 0.0% 91 min
DL 3636flown by SkyWest DTW 10:05 BUF 11:24 1h 19m 55 80% 1.8% 67 min
DL 4636flown by Endeavor DTW 10:10 BUF 11:24 1h 14m 60 78% 1.7% 99 min
DL 4021flown by SkyWest DTW 14:00 BUF 15:12 1h 12m 31 97% 0.0% 132 min
DL 3642flown by SkyWest DTW 14:03 BUF 15:21 1h 18m 55 75% 0.0% 87 min
DL 3969flown by SkyWest DTW 17:40 BUF 18:51 1h 11m 31 74% 0.0% 101 min
DL 3637flown by SkyWest DTW 17:59 BUF 19:17 1h 18m 48 65% 0.0% 91 min
DL 978 DTW 22:50 BUF 23:58 1h 09m 146 74% 1.4% 88 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 DTW BUF 1h 13m 80% 1.4% 1,532 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