2,331 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 95% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 7–8 am 97% arrive on time from DEN

Best single flight UA 5389 DEN 20:45 → DSM 23:44 · 83% on time Avoid F9 1678 DEN 10:46 → DSM 13:32 · 83% 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).

DEN

% 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)	1,613	86%	0.6%	72 min
Frontier	159	83%	0.0%	61 min
Southwest	559	67%	0.4%	63 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 5389flown by SkyWest	DEN 20:45	DSM 23:44	83%
F9 1678	DEN 10:46	DSM 13:32	83%

All 9 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	DSM	1h 54m	86%	0.6%	1,613	Flying now
Frontier	DEN	DSM	1h 48m	83%	0.0%	159	Flying now
Southwest	DEN	DSM	1h 40m	67%	0.4%	559	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