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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
Portland flights leaving DEN 12–1 pm: 2Close ×
AS 684 DEN 12:02 PDX 13:46 2h 44m 219 89% 0.5% 39 min
WN 4271 DEN 12:20 PDX 13:55 2h 35m 58 67% 0.0% 33 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.
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