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.

REPUBLIC · FLIGHT YX 4340 LANDED 8:17 AM CT, ~6 MIN LATE · SCHEDULED TIME UNKNOWN

Wednesday, September 30 Yesterday

YX 4340 · LGA → STL

took off 7:13 AM ET · landed 8:17 AM CT (scheduled time unknown)

Forecast issued Wed 10:00 PM ET · 15h after departure

Arrive at STL more than 15 minutes late?

16% chance · ±0 pts +8 pts · 24h

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

What’s moving the odds

↑ Other factors

↑ LGA is prone to delays

↑ LGA is busy at that time

↓ Early flights usually leave on time

↓ Mostly benign weather forecast at STL

Weather at each end

LGA (origin) Gusts9 kt Ceiling2,700 ft Visibility10+ mi Precipnone

STL (destination) Gusts20 kt Ceiling9,000 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.

YX 4340 · LGA → STL

Odds over time