Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 688SCHEDULED · TYPICAL SCHEDULE
Today
UA 688 · MCI → IAD
departs 12:30 PM CT · arrives 4:03 PM ET
Forecast issued Sat 3:00 AM ET · 10h before departure
Odds over time
Arrive at IAD more than 15 minutes late?
31%chance · ±0 pts+19 pts · 24h
HOW SURE WE AREGood. The odds now lean mostly on firmed-up weather forecasts.
How late will it get to IAD?
On time or early
68%
15–30 min late
22%
30 min–1 hour late
0%
1–2 hours late
5%
Over 2 hours late
3%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.