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4,285 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 62%.

Best time to leave 8–9 am 87% arrive on time from DEN
Best single flight AS 684 DEN 12:02 → PDX 13:46 · 89% on time Avoid UA 498 DEN 19:30 → PDX 21:15 · 80% 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).

7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
DEN
91
90
76
85
78
81
76
79
77
59
54
69
47
61
48
% 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 280 84% 0.4% 52 min
United 1,825 83% 0.3% 59 min
Alaska (incl. SkyWest) 625 80% 0.3% 57 min
Southwest 1,555 64% 0.1% 50 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.
AS 684 DEN 12:02 PDX 13:46 89%
UA 1247 DEN 08:05 PDX 09:47 88%
F9 2553 DEN 15:08 PDX 16:51 87%
UA 644 DEN 11:27 PDX 13:09 84%
UA 1337 DEN 16:00 PDX 17:46 84%
· · ·
UA 498 DEN 19:30 PDX 21:15 80%
All 20 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.
Frontier DEN PDX 2h 46m 84% 0.4% 280 Flying now
United DEN PDX 2h 43m 83% 0.3% 1,825 Flying now
Alaska DEN PDX 2h 46m 80% 0.3% 625 Flying now
Southwest DEN PDX 2h 40m 64% 0.1% 1,555 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