AA1277 DenverDEN · 14:27 ChicagoORD · 18:11
AA1277 by American Airlines flies from Denver (DEN) to Chicago (ORD) for the Mon, Sep 21 departure.
departs DEN · 9 min late
board checked 18m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at DEN 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 Denver to Chicago flights today
same route · American AirlinesIf AA1277 is cancelled, these are the other American Airlines nonstop flights from Denver to Chicago on the same day, with scheduled departure times in DEN local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AA1277 actually runs
Pro Flight Search has tracked every published board update for AA1277 across the DEN and ORD boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +79 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AA1277 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N771XF, N924US.
Board clocks recorded as DEN and ORD published them.
Planning around AA1277? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AA1277 Denver to Chicago on-time performance, measured from the DEN and ORD airport boards.
https://proflightsearch.com/flight/AA1277
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