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7,102 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 65%.

Best time to leave 5–6 am 97% arrive on time from LAS
Best single flight UA 596 LAS 05:30 → DEN 08:32 · 98% on time Avoid F9 3540 LAS 14:53 → DEN 18:04 · 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
17
18
19
20
21
LAS
97
92
91
86
87
88
81
67
75
57
62
72
56
64
72
63
56
% 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 LAS 11 am–12 pm: 2Close ×
WN 2226 LAS 11:40 DEN 14:40 2h 00m 41 71% 0.0% 38 min
WN 1029 LAS 11:45 DEN 14:40 1h 55m 16 93% 0.0% 23 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 2,388 85% 0.4% 67 min
Frontier 1,595 78% 1.0% 91 min
Southwest 3,119 72% 1.0% 55 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 596 LAS 05:30 DEN 08:32 98%
F9 2350 LAS 06:15 DEN 09:15 88%
F9 4968 LAS 08:15 DEN 11:19 86%
F9 1994 LAS 18:34 DEN 21:41 81%
UA 1291 LAS 18:10 DEN 21:11 77%
· · ·
F9 4612 LAS 21:24 DEN 00:38 73%
UA 2108 LAS 16:25 DEN 19:30 73%
F9 3540 LAS 14:53 DEN 18:04 66%
All 26 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 LAS DEN 2h 00m 85% 0.4% 2,388 Flying now
Frontier LAS DEN 2h 06m 78% 1.0% 1,595 Flying now
Southwest LAS DEN 1h 55m 72% 1.0% 3,119 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