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5,416 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 62%.

Best time to leave 5–6 am 95% arrive on time from AUS
Best single flight UA 361 AUS 05:39 → DEN 06:58 · 97% on time Avoid DL 3669 AUS 16:49 → DEN 18:14 · 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
22
AUS
96
93
94
90
88
89
89
86
75
71
70
76
55
56
54
64
66
64
% 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 AUS 12–1 pm: 3Close ×
WN 3399 AUS 12:10 DEN 13:20 2h 10m 34 70% 2.9% 31 min
WN 335 AUS 12:45 DEN 13:55 2h 10m 65 83% 0.0% 59 min
UA 1541 AUS 12:55 DEN 14:14 2h 19m 112 96% 0.0% 96 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) 1,921 85% 0.8% 73 min
Frontier 580 84% 0.5% 74 min
Delta (incl. SkyWest) 530 80% 0.6% 73 min
Southwest 2,385 74% 0.5% 54 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 361 AUS 05:39 DEN 06:58 97%
DL 3876flown by SkyWest AUS 07:24 DEN 08:55 92%
UA 779 AUS 11:27 DEN 12:45 92%
UA 595 AUS 08:30 DEN 09:49 89%
F9 1815 AUS 06:30 DEN 07:49 88%
· · ·
UA 2447 AUS 14:45 DEN 16:22 82%
UA 439 AUS 18:29 DEN 20:00 68%
DL 3669flown by SkyWest AUS 16:49 DEN 18:14 66%
All 23 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 AUS DEN 2h 25m 85% 0.8% 1,921 Flying now
Frontier AUS DEN 2h 29m 84% 0.5% 580 Flying now
Delta AUS DEN 2h 31m 80% 0.6% 530 Flying now
Southwest AUS DEN 2h 20m 74% 0.5% 2,385 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