Schedule: the flights that flew on Wednesday, Oct 7, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 1663 SCHEDULED · TYPICAL SCHEDULE

Wednesday, October 14

UA 1663 · IAH → PHL

departs 6:05 PM CT · arrives 10:29 PM ET

Forecast issued Mon 3:00 PM ET · 52h before departure

Arrive at PHL more than 15 minutes late?

20% chance · ±2 pts – · 24h

HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.

How late will it get to PHL?

On time or early
79%
15–30 min late
7%
30 min–1 hour late
8%
1–2 hours late
3%
Over 2 hours late
2%
Cancelled
<1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ 6pm departures from IAH are often late

↑ Later flights pick up delays from earlier in the day

↑ Arrivals into PHL at that hour are often late

↓ Wednesdays in October are usually quieter than average

↓ Other factors

Weather at each end

IAH (origin) Gusts22 kt Ceiling2,200 ft Visibility10+ mi Precipnone

PHL (destination) Gusts16 kt Ceiling5,000 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.

UA 1663 · IAH → PHL

Odds over time

How late will it get to PHL?