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3,139 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 96% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 5–6 am 98% arrive on time from OKC
Best single flight UA 4751 OKC 06:05 → DEN 06:58 · 94% on time Avoid UA 4768 OKC 16:56 → DEN 18:20 · 72% 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
OKC
98
95
94
99
90
82
86
87
70
74
82
76
73
64
61
78
74
% 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 (incl. SkyWest) 1,565 82% 0.8% 67 min
Southwest 1,224 79% 0.8% 51 min
Frontier 350 78% 0.6% 79 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 4751flown by SkyWest OKC 06:05 DEN 06:58 94%
UA 5490flown by SkyWest OKC 11:30 DEN 12:28 86%
F9 1927 OKC 19:16 DEN 20:07 80%
UA 4768flown by SkyWest OKC 16:56 DEN 18:20 72%
All 17 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 OKC DEN 1h 56m 82% 0.8% 1,565 Flying now
Southwest OKC DEN 1h 40m 79% 0.8% 1,224 Flying now
Frontier OKC DEN 1h 54m 78% 0.6% 350 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