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2,330 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 11 am–12 pm 94% arrive on time from DSM
Best single flight UA 4777 DSM 05:50 → DEN 06:59 · 89% on time Avoid UA 1781 DSM 17:17 → DEN 18:23 · 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).

5
6
7
8
9
10
11
12
13
14
15
16
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18
19
DSM
90
95
92
93
90
93
88
91
76
78
49
% 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 DSM 7–8 pm: 1Close ×
WN 1334 DSM 19:00 DEN 19:50 1h 50m 16 19% 0.0% 79 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) 1,612 85% 0.7% 90 min
Southwest 559 83% 0.5% 75 min
Frontier 159 81% 0.0% 83 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 4777flown by SkyWest DSM 05:50 DEN 06:59 89%
F9 1677 DSM 14:19 DEN 15:23 81%
UA 1781 DSM 17:17 DEN 18:23 66%
All 10 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 DSM DEN 2h 11m 85% 0.7% 1,612 Flying now
Southwest DSM DEN 1h 55m 83% 0.5% 559 Flying now
Frontier DSM DEN 2h 04m 81% 0.0% 159 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