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3,030 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 88% depart on time. After 4 pm it’s 62%.

Best time to leave 6–7 am 90% arrive on time from DEN
Best single flight UA 1575 DEN 09:35 → PHL 15:12 · 88% on time Avoid F9 3340 DEN 23:59 → PHL 05:38 · 62% 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
16
17
18
19
20
21
22
23
DEN
90
89
87
86
83
72
65
79
62
59
69
39
29
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

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

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 952 81% 0.5% 69 min
American 903 80% 1.6% 112 min
Frontier 296 66% 3.0% 95 min
Southwest 879 64% 0.8% 57 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.
UA 1575 DEN 09:35 PHL 15:12 88%
F9 3340 DEN 23:59 PHL 05:38 62%

All 14 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 2514 DEN 06:05 PHL 11:49 3h 44m 51 92% 2.0% 216 min
AA 2344 DEN 08:41 PHL 14:20 3h 39m 105 84% 1.9% 119 min
UA 1575 DEN 09:35 PHL 15:12 3h 37m 270 88% 0.4% 49 min
WN 3157 DEN 10:22 PHL 16:00 3h 38m 50 72% 0.0% 53 min
AA 3312 DEN 12:16 PHL 17:59 3h 43m 35 74% 0.0% 68 min
WN 4168 DEN 12:25 PHL 18:00 3h 35m 16 62% 0.0% 106 min
AA 1751 DEN 12:49 PHL 18:35 3h 46m 36 66% 2.8% 48 min
WN 3286 DEN 14:05 PHL 19:45 3h 40m 33 67% 0.0% 74 min
AA 1759 DEN 15:13 PHL 20:59 3h 46m 60 58% 0.0% 128 min
UA 1510 DEN 17:54 PHL 23:30 3h 36m 92 58% 0.0% 95 min
WN 2686 DEN 19:05 PHL 00:45 3h 35m 50 22% 2.0% 67 min
AA 2500 DEN 23:55 PHL 05:32 3h 37m 61 78% 3.3% 217 min
F9 3340 DEN 23:59 PHL 05:38 3h 39m 234 62% 3.0% 90 min
UA 1214 DEN 23:59 PHL 05:31 3h 32m 61 83% 0.0% 59 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.
United DEN PHL 3h 36m 81% 0.5% 952 Flying now
American DEN PHL 3h 43m 80% 1.6% 903 Flying now
Frontier DEN PHL 3h 44m 66% 3.0% 296 Flying now
Southwest DEN PHL 3h 30m 64% 0.8% 879 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