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 231 SCHEDULED · SCHEDULED TIME UNKNOWN

Sunday, October 4 Today

UA 231 · BOS → EWR

departs 5:33 PM ET · arrives 6:12 PM ET

Forecast issued Sun 4:00 PM ET · 2h before departure

Arrive at EWR more than 15 minutes late?

67% chance · ±0 pts – · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

What’s moving the odds

↑ UA's recent on-time record

↑ EWR is prone to delays

↑ Arrivals into EWR at that hour are often late

↓ Sundays in October are usually quieter than average

↓ Mostly benign weather forecast at BOS

Weather at each end

BOS (origin) Gusts13 kt Ceiling6,000 ft Visibility10+ mi Precipnone

EWR (destination) Gusts19 kt Ceiling800 ft Visibility2.5 mi Precip0.07 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.

UA 231 · BOS → EWR

Odds over time