tailodds FORECAST
Tickets
Any day
5,008 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 2 in 3.

Best time to leave 8–9 am 91% arrive on time from DEN
Best single flight UA 4745 DEN 23:09 → COS 23:59 · 87% on time Avoid UA 5308 DEN 16:55 → COS 17:52 · 66% 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).

7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
DEN
86
90
86
79
83
88
79
71
80
67
68
53
68
54
71
66
87
% 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
Colorado Springs flights leaving DEN 8–9 pm: 3Close ×
UA 5292flown by SkyWest DEN 20:30 COS 21:26 56m 11 45% 0.0% 78 min
UA 4744flown by SkyWest DEN 20:30 COS 21:26 56m 36 28% 0.0% 70 min
WN 3811 DEN 20:55 COS 21:45 52m 42 29% 0.0% 76 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) 3,879 78% 1.4% 71 min
Southwest 1,129 75% 0.4% 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.
UA 4745flown by SkyWest DEN 23:09 COS 23:59 87%
UA 5246flown by SkyWest DEN 07:45 COS 08:41 85%
UA 5306flown by SkyWest DEN 09:45 COS 10:46 83%
UA 4734flown by SkyWest DEN 11:21 COS 12:21 81%
UA 5546flown by SkyWest DEN 15:35 COS 16:32 81%
· · ·
UA 4793flown by SkyWest DEN 19:05 COS 20:01 74%
UA 5861flown by SkyWest DEN 17:55 COS 18:54 68%
UA 5308flown by SkyWest DEN 16:55 COS 17:52 66%
All 21 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 DEN COS 56m 78% 1.4% 3,879 Flying now
Southwest DEN COS 45m 75% 0.4% 1,129 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