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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

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 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