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 440SCHEDULED · TYPICAL SCHEDULE
Today
UA 440 · BOI → ORD
departs 12:34 PM MT · arrives 5:05 PM CT
Forecast issued Sat 12:00 AM ET · 15h before departure
Odds over time
Arrive at ORD more than 15 minutes late?
14%chance · ±0 pts+1 pt · 24h
HOW SURE WE AREGood. The odds now lean mostly on firmed-up weather forecasts.
How late will it get to ORD?
On time or early
85%
15–30 min late
5%
30 min–1 hour late
4%
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%.