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2,469 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 64%.

Best time to leave 7–8 am 92% arrive on time from MIA
Best single flight F9 1279 MIA 06:00 → DEN 08:37 · 85% on time Avoid UA 2852 MIA 15:44 → DEN 18:23 · 82% 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
21
MIA
79
86
93
90
85
82
73
76
71
33
60
62
72
69
70
% 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 MIA 8–9 pm: 1Close ×
AA 1737 MIA 20:30 DEN 22:54 4h 23m 72 65% 0.0% 62 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 910 84% 0.1% 74 min
Frontier 351 83% 1.1% 113 min
American 885 77% 0.8% 62 min
Southwest 323 57% 0.0% 65 min

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.
F9 1279 MIA 06:00 DEN 08:37 85%
UA 2852 MIA 15:44 DEN 18:23 82%
All 6 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 MIA DEN 4h 40m 84% 0.1% 910 Flying now
Frontier MIA DEN 4h 56m 83% 1.1% 351 Flying now
American MIA DEN 4h 35m 77% 0.8% 885 Flying now
Southwest MIA DEN 4h 35m 57% 0.0% 323 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