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6,440 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 2 in 3.

Best time to leave 6–7 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
ATL
88
91
91
82
82
86
76
84
74
76
66
67
73
68
64
65
69
% 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.
United (incl. SkyWest, Republic) 1,684 76% 1.7% 93 min
American (incl. Envoy, PSA, SkyWest, Republic) 1,369 72% 3.1% 95 min
Delta 2,630 70% 2.3% 63 min
Frontier 712 65% 3.1% 112 min
Spirit 45 – 0.0% 32 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 1178 ATL 07:25 ORD 08:35 88%
UA 745 ATL 13:18 ORD 14:41 81%
DL 1147 ATL 09:02 ORD 10:13 80%
DL 1477 ATL 13:02 ORD 14:16 76%
AA 616 ATL 07:25 ORD 08:45 75%
· · ·
DL 1139 ATL 20:02 ORD 21:12 60%
F9 3397 ATL 18:22 ORD 19:52 58%
DL 2879 ATL 17:21 ORD 18:42 49%

All 24 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.
F9 1441 ATL 06:35 ORD 07:55 2h 20m 342 73% 1.8% 99 min
DL 1178 ATL 07:25 ORD 08:35 2h 10m 330 88% 2.4% 49 min
AA 616 ATL 07:25 ORD 08:45 2h 20m 165 75% 1.8% 109 min
DL 1147 ATL 09:02 ORD 10:13 2h 11m 360 80% 2.8% 46 min
UA 364 ATL 10:05 ORD 11:28 2h 23m 37 79% 8.1% 162 min
UA 1577 ATL 10:05 ORD 11:28 2h 23m 35 89% 0.0% 56 min
DL 2894 ATL 11:22 ORD 12:36 2h 14m 84 70% 1.2% 62 min
UA 1239 ATL 11:29 ORD 12:52 2h 23m 72 82% 0.0% 37 min
AA 1363 ATL 12:00 ORD 13:20 2h 20m 71 75% 1.4% 130 min
DL 1477 ATL 13:02 ORD 14:16 2h 14m 356 76% 1.7% 62 min
UA 745 ATL 13:18 ORD 14:41 2h 23m 168 81% 2.4% 84 min
UA 516 ATL 15:30 ORD 16:57 2h 27m 363 74% 1.1% 129 min
DL 2738 ATL 15:50 ORD 17:04 2h 16m 365 62% 3.3% 55 min
AA 4759flown by Republic ATL 17:17 ORD 18:53 2h 33m 66 58% 9.1% 117 min
DL 2879 ATL 17:21 ORD 18:42 2h 21m 344 49% 2.3% 63 min
F9 3397 ATL 18:22 ORD 19:52 2h 30m 244 58% 5.3% 118 min
F9 1595 ATL 18:22 ORD 19:52 2h 30m 123 57% 2.4% 127 min
UA 1046 ATL 19:04 ORD 20:30 2h 26m 341 63% 2.6% 94 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
AA 1372 ATL 19:43 ORD 21:11 2h 33m 72 43% 4.2% 104 min
DL 1139 ATL 20:02 ORD 21:12 2h 10m 223 60% 0.9% 81 min
UA 785 ATL 20:44 ORD 21:59 2h 15m 61 56% 3.3% 89 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.
United ATL ORD 2h 18m 76% 1.7% 1,684 Flying now
American ATL ORD 2h 20m 72% 3.1% 1,369 Flying now
Delta ATL ORD 2h 10m 70% 2.3% 2,630 Flying now
Frontier ATL ORD 2h 30m 65% 3.1% 712 Flying now
Spirit ATL ORD 2h 11m 80% 0.0% 45 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