Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

AMERICAN · FLIGHT AA 729 LANDED 11:47 AM ET, ~11 MIN LATE · SCHEDULED TIME UNKNOWN

Wednesday, September 30 Yesterday

AA 729 · LHR → PHL

took off 9:38 AM BST · landed 11:47 AM ET (scheduled time unknown)

Forecast issued Wed 10:00 PM ET · 17h after departure

Arrive at PHL more than 15 minutes late?

9% chance · ±0 pts +2 pts · 24h

HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.

What’s moving the odds

↑ AA's recent on-time record

↑ This route's recent record

↑ 9am departures from LHR are often late

↓ Other factors

↓ Mostly benign weather forecast at PHL

Weather at each end

LHR (origin) Gusts— Ceiling— Visibility— Precip—

PHL (destination) Gusts8 kt Ceiling4,500 ft Visibility10+ mi Precipnone

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

AA 729 · LHR → PHL

Odds over time