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Showing Delta only (incl. its regional partners)All airlines ×
2,630 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 7–8 am 88% arrive on time from ATL
Best single flight DL 1178 ATL 07:25 → ORD 08:35 · 88% on time Avoid DL 2879 ATL 17:21 → ORD 18:42 · 49% 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
20
21
22
ATL
93
89
88
85
78
88
77
75
67
80
69
67
93
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.

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 1178 ATL 07:25 ORD 08:35 88%
DL 1147 ATL 09:02 ORD 10:13 80%
DL 1477 ATL 13:02 ORD 14:16 76%
DL 1199 ATL 22:50 ORD 23:53 71%
DL 2738 ATL 15:50 ORD 17:04 62%
· · ·
DL 1139 ATL 20:02 ORD 21:12 60%
DL 2879 ATL 17:21 ORD 18:42 49%

All 10 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 1178 ATL 07:25 ORD 08:35 2h 10m 330 88% 2.4% 49 min
DL 1147 ATL 09:02 ORD 10:13 2h 11m 360 80% 2.8% 46 min
DL 2894 ATL 11:22 ORD 12:36 2h 14m 84 70% 1.2% 62 min
DL 1477 ATL 13:02 ORD 14:16 2h 14m 356 76% 1.7% 62 min
DL 2738 ATL 15:50 ORD 17:04 2h 16m 365 62% 3.3% 55 min
DL 2879 ATL 17:21 ORD 18:42 2h 21m 344 49% 2.3% 63 min
DL 2486 ATL 19:15 ORD 20:33 2h 17m 53 66% 5.7% 81 min
DL 1164 ATL 19:27 ORD 20:36 2h 09m 31 55% 0.0% 42 min
DL 1139 ATL 20:02 ORD 21:12 2h 10m 223 60% 0.9% 81 min
DL 1199 ATL 22:50 ORD 23:53 2h 09m 315 71% 2.9% 74 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 ATL ORD 2h 10m 70% 2.3% 2,630 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