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1,227 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: airlines and hours on this route all land within a few points of 4 in 5 on time.

Best time to leave 9–10 am 87% arrive on time from IAH
Best single flight UA 740 IAH 09:30 → PDX 11:56 · 86% on time Avoid AS 1421 IAH 18:19 → PDX 20:50 · 77% 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).

9
10
11
12
13
14
15
16
17
18
19
20
IAH
86
66
78
74
67
76
73
% 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 IAH 9–10 am: 1Close ×
UA 740 IAH 09:30 PDX 11:56 4h 26m 365 86% 0.0% 76 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 874 83% 0.2% 64 min
Alaska 353 77% 1.1% 61 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 740 IAH 09:30 PDX 11:56 86%
UA 1420 IAH 20:17 PDX 22:48 79%
AS 1421 IAH 18:19 PDX 20:50 77%
All 4 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 IAH PDX 4h 31m 83% 0.2% 874 Flying now
Alaska IAH PDX 4h 31m 77% 1.1% 353 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