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 1831 SCHEDULED · TYPICAL SCHEDULE
Today

UA 1831 · IAD → EWR

departs 5:42 PM ET · arrives 7:06 PM ET
Forecast issued Fri 11:00 PM ET · 19h before departure

Odds over time

Arrive at EWR more than 15 minutes late?
35% chance · ±2 pts +0 pts · 24h
HOW SURE WE ARE Good. The odds now lean mostly on firmed-up weather forecasts.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 4.8d 2d 1d Now 12h 6h Departs Lands

How late will it get to EWR?

  1. On time or early
    65%
  2. 15–30 min late
    15%
  3. 30 min–1 hour late
    11%
  4. 1–2 hours late
    6%
  5. Over 2 hours late
    4%
  6. Cancelled
    <1%

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