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.

UNITED · FLIGHT UA 731 PROBABLY LANDED (THE FAA HASN'T CONFIRMED THE LANDING TIME) · SCHEDULED TIME UNKNOWN

Wednesday, September 30 Today

UA 731 · DEN → BUF

took off 6:10 PM MT · probably landed (not confirmed) (scheduled time unknown)

Forecast issued Wed 10:00 PM ET · 2h after departure

Arrive at BUF more than 15 minutes late?

42% chance · ±0 pts −16 pts · 24h

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

What’s moving the odds

↑ 5pm departures from DEN are often late

↑ Later flights pick up delays from earlier in the day

↑ Other factors

↓ Wednesdays in September are usually quieter than average

↓ BUF usually runs smoothly

Weather at each end

DEN (origin) Gusts20 kt Ceiling8,000 ft Visibility10+ mi Precip0.03 in

BUF (destination) Gusts20 kt Ceiling9,000 ft Visibility8 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.

UA 731 · DEN → BUF

Odds over time