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1,769 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 5–6 am 95% arrive on time from CMH
Best single flight UA 728 CMH 09:00 → DEN 10:14 · 86% on time Avoid UA 1389 CMH 15:30 → DEN 16:45 · 80% 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
20
CMH
96
95
90
85
71
76
83
61
73
67
% 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
Denver flights leaving CMH 5–6 am: 1Close ×
WN 1186 CMH 05:45 DEN 06:50 3h 05m 58 97% 0.0% 92 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.
United 728 83% 0.8% 78 min
Southwest 919 80% 0.4% 65 min
Frontier 122 – 0.8% 81 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.
UA 728 CMH 09:00 DEN 10:14 86%
UA 1389 CMH 15:30 DEN 16:45 80%
All 8 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.
United CMH DEN 3h 15m 83% 0.8% 728 Flying now
Southwest CMH DEN 3h 10m 80% 0.4% 919 Flying now
Frontier CMH DEN 3h 16m 72% 0.8% 122 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