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Showing Delta only (incl. its regional partners)All airlines ×
3,308 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 94% depart on time. After 4 pm it’s barely half.

Best time to leave 5–6 am 98% arrive on time from MIA
Best single flight DL 1261 MIA 08:17 → ATL 10:20 · 93% on time Avoid DL 1386 MIA 18:05 → ATL 20:22 · 59% 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).

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
MIA
96
96
94
92
84
80
80
69
70
65
62
64
50
46
% 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.
DL 1261 MIA 08:17 ATL 10:20 93%
DL 1249 MIA 06:00 ATL 08:05 93%
DL 1211 MIA 07:10 ATL 09:15 93%
DL 2836 MIA 10:40 ATL 12:48 85%
DL 1510 MIA 12:02 ATL 14:09 82%
· · ·
DL 1579 MIA 16:00 ATL 18:22 67%
DL 1323 MIA 19:16 ATL 21:34 59%
DL 1386 MIA 18:05 ATL 20:22 59%

All 11 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 1249 MIA 06:00 ATL 08:05 2h 05m 275 93% 2.5% 96 min
DL 1211 MIA 07:10 ATL 09:15 2h 05m 357 93% 2.2% 89 min
DL 1261 MIA 08:17 ATL 10:20 2h 03m 365 93% 0.5% 85 min
DL 2836 MIA 10:40 ATL 12:48 2h 10m 355 85% 2.3% 89 min
DL 1510 MIA 12:02 ATL 14:09 2h 07m 365 82% 1.6% 68 min
DL 1332 MIA 14:09 ATL 16:15 2h 06m 365 75% 1.4% 88 min
DL 1579 MIA 16:00 ATL 18:22 2h 22m 325 67% 0.6% 86 min
DL 1386 MIA 18:05 ATL 20:22 2h 17m 339 59% 1.8% 77 min
DL 1323 MIA 19:16 ATL 21:34 2h 18m 291 59% 2.4% 82 min
DL 1328 MIA 19:39 ATL 21:59 2h 20m 98 56% 2.0% 95 min
DL 1632 MIA 20:30 ATL 22:54 2h 24m 21 37% 9.5% 78 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 MIA ATL 2h 10m 78% 1.8% 3,308 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