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.

ENDEAVOR · FLIGHT 9E 5399 LANDED 3:18 PM ET, ~8 MIN LATE · SCHEDULED TIME UNKNOWN

Tuesday, September 29

9E 5399 · JFK → PWM

took off 2:25 PM ET · landed 3:18 PM ET (scheduled time unknown)

Forecast issued Tue 10:00 PM ET · 7h after departure

Arrive at PWM more than 15 minutes late?

31% chance · ±0 pts +14 pts · 24h

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

What’s moving the odds

↑ Other factors

↑ Cloud base down to 600 ft, visibility down to 1.5 mi forecast at PWM that day

↑ JFK is prone to delays

↓ Tuesdays in September are usually quieter than average

↓ 9E's recent on-time record

Weather at each end

JFK (origin) Gusts10 kt Ceiling1,800 ft Visibility10+ mi Precipnone

PWM (destination) Gusts12 kt Ceiling600 ft Visibility1.5 mi Precip0.13 in

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.

9E 5399 · JFK → PWM

Odds over time