AA9817 LondonLHR ChicagoORD
AA9817 by American Airlines flies from London (LHR) to Chicago (ORD).
scheduled from LHR
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 AA9817 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 AA9817 actually runs
Pro Flight Search has tracked every published board update for AA9817 across the LHR and ORD boards: schedule changes, gate pushes and actual clocks. Combined risk score: 58.5/100. Based on airport operations, weather, and cached board history at LHR and ORD.
The verdict above is that record speaking, so it reflects how AA9817 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around AA9817? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AA9817 London to Chicago on-time performance, measured from the LHR and ORD airport boards.
https://proflightsearch.com/flight/AA9817
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