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3,155 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 3 in 4.

Best time to leave 11 am–12 pm 92% arrive on time from ATL
Best single flight DL 1479 ATL 07:30 → CMH 09:02 · 90% on time Avoid DL 1501 ATL 23:05 → CMH 00:44 · 74% 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
23
ATL
92
88
84
85
93
81
86
83
77
76
72
77
70
78
76
80
71
% 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
Columbus flights leaving ATL 7–8 pm: 1Close ×
DL 1545 ATL 19:54 CMH 21:31 1h 37m 120 67% 1.7% 59 min

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 2,694 82% 1.5% 57 min
Southwest 322 78% 0.6% 56 min
Frontier 139 – 2.9% 67 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 1479 ATL 07:30 CMH 09:02 90%
DL 1522 ATL 10:10 CMH 11:48 90%
DL 2200 ATL 14:25 CMH 15:59 88%
DL 2892 ATL 16:15 CMH 17:49 82%
DL 1459 ATL 22:03 CMH 23:01 80%
· · ·
DL 2786 ATL 17:25 CMH 19:03 74%
DL 1501 ATL 23:05 CMH 00:44 74%
All 14 flights on this route →

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 CMH 1h 35m 82% 1.5% 2,694 Flying now
Southwest ATL CMH 1h 32m 78% 0.6% 322 Flying now
Frontier ATL CMH 1h 39m 62% 2.9% 139 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