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8,944 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 2 in 3.

Best time to leave 5–6 am 96% arrive on time from PHX
Best single flight F9 1376 PHX 06:40 → DEN 09:37 · 88% on time Avoid AA 1638 PHX 15:24 → DEN 18:16 · 70% 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
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9
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PHX
96
94
91
89
84
81
77
81
73
63
65
69
65
64
73
59
61
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
Denver flights leaving PHX 9–10 am: 1Close ×
UA 597 PHX 09:08 DEN 12:00 1h 52m 265 86% 0.8% 70 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 (incl. SkyWest) 2,364 84% 0.6% 77 min
Frontier 1,464 80% 0.7% 91 min
American (incl. Envoy, SkyWest) 1,179 77% 0.8% 73 min
Southwest 3,937 74% 0.6% 56 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 1376 PHX 06:40 DEN 09:37 88%
UA 597 PHX 09:08 DEN 12:00 86%
F9 4768 PHX 08:40 DEN 11:43 85%
F9 4766 PHX 14:15 DEN 17:10 84%
F9 1748 PHX 11:20 DEN 14:15 80%
· · ·
F9 1820 PHX 18:53 DEN 21:49 75%
F9 2142 PHX 16:48 DEN 19:46 71%
AA 1638 PHX 15:24 DEN 18:16 70%
All 30 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 PHX DEN 1h 53m 84% 0.6% 2,364 Flying now
Frontier PHX DEN 1h 56m 80% 0.7% 1,464 Flying now
American PHX DEN 1h 52m 77% 0.8% 1,179 Flying now
Southwest PHX DEN 1h 45m 74% 0.6% 3,937 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