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Showing Frontier only (incl. its regional partners)All airlines ×
1,464 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 72%.

Best time to leave 6–7 am 90% arrive on time from PHX
Best single flight F9 1376 PHX 06:40 → DEN 09:37 · 88% on time Avoid F9 2142 PHX 16:48 → DEN 19:46 · 71% 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).

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PHX
95
91
92
88
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84
76
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76
60
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75
% 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

Pick an hour to see this route’s flights leaving then.

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%
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%

All 6 Frontier flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
F9 1376 PHX 06:40 DEN 09:37 1h 57m 338 88% 0.0% 96 min
F9 4768 PHX 08:40 DEN 11:43 1h 58m 255 85% 1.6% 102 min
F9 1748 PHX 11:20 DEN 14:15 1h 55m 155 80% 1.3% 106 min
F9 4766 PHX 14:15 DEN 17:10 1h 55m 181 84% 1.1% 87 min
F9 2142 PHX 16:48 DEN 19:46 1h 56m 271 71% 0.4% 92 min
F9 1820 PHX 18:53 DEN 21:49 1h 56m 220 75% 0.5% 74 min

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.
Frontier PHX DEN 1h 56m 80% 0.7% 1,464 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