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.

DELTA · FLIGHT DL 817 SCHEDULED · TYPICAL SCHEDULE

DL 817 · BOS → RDU

departs 8:05 PM ET · arrives 10:15 PM ET
Forecast issued Tue 11:00 PM ET · 69h before departure
Arrive at RDU more than 15 minutes late?
44% chance · ±6 pts +12 pts · 24h
HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.
WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 3.9d Now 2d 1d 12h 6h Departs Lands

How late will it get to RDU?

  1. On time or early
    56%
  2. 15–30 min late
    18%
  3. 30 min–1 hour late
    13%
  4. 1–2 hours late
    9%
  5. Over 2 hours late
    4%
  6. Cancelled
    <1%

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