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3,695 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 3 in 5.

Best time to leave 5–6 am 96% arrive on time from DEN
Best single flight F9 3302 DEN 16:10 → STL 19:23 · 85% on time Avoid UA 1422 DEN 17:34 → STL 20:43 · 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
DEN
97
93
92
92
88
80
75
63
82
64
57
65
68
55
36
58
% 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.
Frontier 291 85% 0.3% 51 min
United (incl. SkyWest) 1,210 80% 0.3% 63 min
Southwest 2,194 77% 0.5% 60 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.
F9 3302 DEN 16:10 STL 19:23 85%
UA 652 DEN 09:35 STL 12:42 84%
UA 1422 DEN 17:34 STL 20:43 72%

All 16 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.
WN 1751 DEN 05:35 STL 08:35 2h 05m 50 90% 0.0% 46 min
WN 1373 DEN 07:20 STL 10:25 2h 05m 42 93% 0.0% 57 min
UA 652 DEN 09:35 STL 12:42 2h 07m 344 84% 0.6% 50 min
WN 1753 DEN 10:05 STL 13:20 2h 15m 49 96% 0.0% 30 min
WN 3152 DEN 12:55 STL 15:55 2h 05m 44 77% 0.0% 46 min
UA 1639 DEN 13:25 STL 16:33 2h 08m 71 87% 0.0% 86 min
WN 320 DEN 13:40 STL 16:50 2h 10m 33 73% 0.0% 42 min
WN 3130 DEN 15:40 STL 18:45 2h 05m 26 62% 0.0% 54 min
WN 4213 DEN 15:55 STL 19:05 2h 10m 16 25% 0.0% 84 min
F9 3302 DEN 16:10 STL 19:23 2h 12m 291 85% 0.3% 51 min
WN 5074 DEN 17:15 STL 20:20 2h 05m 10 50% 0.0% 148 min
UA 1422 DEN 17:34 STL 20:43 2h 09m 306 72% 0.3% 75 min
WN 1756 DEN 19:15 STL 22:28 2h 15m 50 40% 6.0% 69 min
WN 1324 DEN 20:45 STL 23:55 2h 10m 16 64% 12.5% 86 min
WN 3317 DEN 20:45 STL 23:55 2h 10m 34 41% 0.0% 60 min
UA 214 DEN 20:45 STL 23:57 2h 12m 71 58% 0.0% 69 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.
Frontier DEN STL 2h 12m 85% 0.3% 291 Flying now
United DEN STL 2h 09m 80% 0.3% 1,210 Flying now
Southwest DEN STL 2h 05m 77% 0.5% 2,194 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