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2,808 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 8–9 am 93% arrive on time from PDX
Best single flight UA 2306 PDX 07:00 → ORD 13:13 · 91% on time Avoid AS 324 PDX 07:00 → ORD 13:13 · 74% 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).

6
7
8
9
10
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13
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PDX
87
92
94
87
72
77
87
49
84
81
% 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
Chicago flights leaving PDX 2–3 pm: 1Close ×
UA 2336 PDX 14:25 ORD 20:38 4h 13m 71 68% 0.0% 70 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 1,402 83% 0.8% 68 min
Alaska 510 78% 1.4% 42 min
American 896 75% 1.1% 104 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 2306 PDX 07:00 ORD 13:13 91%
UA 1490 PDX 23:40 ORD 05:45 89%
AS 324 PDX 07:00 ORD 13:13 74%
All 12 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 PDX ORD 4h 07m 83% 0.8% 1,402 Flying now
Alaska PDX ORD 4h 13m 78% 1.4% 510 Flying now
American PDX ORD 4h 10m 75% 1.1% 896 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