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3,155 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 77%.

Best time to leave 3–4 pm 94% arrive on time from CMH
Best single flight DL 2909 CMH 07:05 → ATL 08:42 · 93% on time Avoid DL 2892 CMH 19:00 → ATL 20:51 · 84% 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
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19
CMH
93
93
88
93
92
85
82
88
76
90
80
77
76
72
% 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
Atlanta flights leaving CMH 12–1 pm: 1Close ×
DL 1522 CMH 12:48 ATL 14:25 1h 38m 352 88% 1.7% 134 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 88% 1.6% 94 min
Southwest 322 83% 0.9% 51 min
Frontier 139 – 2.9% 69 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 2909 CMH 07:05 ATL 08:42 93%
DL 3165 CMH 08:08 ATL 09:45 91%
DL 2469 CMH 06:00 ATL 07:36 91%
DL 2200 CMH 17:01 ATL 18:41 89%
DL 1479 CMH 10:02 ATL 11:37 88%
· · ·
DL 1522 CMH 12:48 ATL 14:25 88%
DL 2892 CMH 19:00 ATL 20:51 84%
All 13 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 CMH ATL 1h 44m 88% 1.6% 2,694 Flying now
Southwest CMH ATL 1h 35m 83% 0.9% 322 Flying now
Frontier CMH ATL 1h 43m 54% 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