AA91 LondonLHR · 14:25 ChicagoORD · 17:15
AA91 by American Airlines flies from London (LHR) to Chicago (ORD) for the Thu, Sep 10 departure.
estimated arrival at ORD · local time · ~90 min from now
board checked 5m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 14:45 · typical taxi-out at LHR ≈ 9.9 min. No receiver coverage over open ocean.
Where the minutes go
last 4 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at LHR 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 London to Chicago flights today
same route · American AirlinesIf AA91 is cancelled, these are the other American Airlines nonstop flights from London to Chicago on the same day, with scheduled departure times in LHR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AA91 actually runs
Pro Flight Search has tracked every published board update for AA91 across the LHR and ORD boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +60 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AA91 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 LHR and ORD published them.
Planning around AA91? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — AA91 London to Chicago on-time performance, measured from the LHR and ORD airport boards.
https://proflightsearch.com/flight/AA91
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