No clear winner: Delta’s DTW → BUF flights land within a few points of 4 in 5 on time whatever the hour.
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).
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 Delta flight on this route ran 150+ times in the year.
All 8 Delta 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 |
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