tailodds FORECAST

Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

UNITED · FLIGHT UA 1734 SCHEDULED · TYPICAL SCHEDULE

UA 1734 · BOS → IAD

departs 5:45 AM ET · arrives 7:23 AM ET
Forecast issued Tue 10:00 PM ET · 56h before departure
Arrive at IAD more than 15 minutes late?
3% chance · ±0 pts +0 pts · 24h
HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.
WEATHER FORECASTS LIVE IN THE AIR 0% 3% 6% 9% 12% 3.3d Now 2d 1d 12h 6h Departs Lands

How late will it get to IAD?

  1. On time or early
    96%
  2. 15–30 min late
    1%
  3. 30 min–1 hour late
    <1%
  4. 1–2 hours late
    <1%
  5. Over 2 hours late
    <1%
  6. Cancelled
    <1%

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