AA4391 PortlandPWM ChicagoORD · 08:11
AA4391 by American Airlines flies from Portland (PWM) to Chicago (ORD).
scheduled from PWM
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at PWM and ORD are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Portland to Chicago flights today
same route · American AirlinesIf AA4391 is cancelled, these are the other American Airlines nonstop flights from Portland to Chicago on the same day, with scheduled departure times in PWM local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AA4391 actually runs
Pro Flight Search has tracked every published board update for AA4391 across the PWM and ORD boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed -30 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AA4391 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as PWM and ORD published them.
Planning around AA4391? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AA4391 Portland to Chicago on-time performance, measured from the PWM and ORD airport boards.
https://proflightsearch.com/flight/AA4391
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