About 1 in 7 UA 1490 flights from Portland arrived 15+ minutes late, diverted or cancelled over the past year (14%); 0.8% were cancelled. The typical flight landed 19 minutes early.
UA 1490: PDX → ORD
Scheduled to leave Portland at 11:59 p.m. local time. Over the past year it arrived on time 86% of the time (265 flights), in line with other UA flights on the route at that hour (86%). Last seen in the data Aug 10, 2026.
Usually United Airlines's last flight of the day from Portland to Chicago (100% of days). United Airlines's last PDX–ORD flight was cancelled 0.8% of the time, against 0.7% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 7:00 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 39 | 87% |
| Tuesday | 35 | 89% |
| Wednesday | 33 | 91% |
| Thursday | 40 | 85% |
| Friday | 41 | 90% |
| Saturday | 37 | 81% |
| Sunday | 40 | 80% |
Why it was late
All flights PDX → ORD · Connecting off UA 1490? Check the risk
Questions
How often is UA 1490 from PDX to ORD late?
United Airlines 1490 from Portland, OR to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 14% of 265 scheduled flights between September 2025 and August 2026. 0.8% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.