AA3921 ManchesterMHT · 12:12 ChicagoORD · 14:03
AA3921 by American Airlines flies from Manchester (MHT) to Chicago (ORD) for the Mon, Aug 17 departure.
arrival expected at ORD · on schedule
board checked 15m ago · checking again in 45s
Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival +12 min · 0 cancelled · 12 operations tracked
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Early read, sample still buildingDriven mainly by MHT (Manchester), currently flying MVFR (marginal visual). For this route and airline, under conditions like today's, over the last 90 days. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
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 Manchester to Chicago flights today
same route · American AirlinesIf AA3921 is cancelled, these are the other American Airlines nonstop flights from Manchester to Chicago on the same day, with scheduled departure times in MHT local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AA3921 actually runs
Pro Flight Search has tracked every published board update for AA3921 across the MHT and ORD boards: schedule changes, gate pushes and actual clocks. Usually lands ~12 min late. Based on 12 confirmed landings · 8/12 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how AA3921 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: N612NN.
Board clocks recorded as MHT and ORD published them.
Planning around AA3921? 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 — AA3921 Manchester to Chicago on-time performance, measured from the MHT and ORD airport boards.
https://proflightsearch.com/flight/AA3921
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