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 2639SCHEDULED · TYPICAL SCHEDULE
Today
UA 2639 · DFW → IAD
departs 7:20 AM CT · arrives 11:26 AM ET
Forecast issued Sat 10:00 AM ET · 2h after departure
Odds over time
Arrive at IAD more than 15 minutes late?
19%chance · ±1 pts+8 pts · 24h
HOW SURE WE AREVery high. The odds now come almost entirely from live conditions.
How late will it get to IAD?
On time or early
80%
15–30 min late
5%
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%.