tailodds FORECAST

Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

DELTA · FLIGHT DL 657 SCHEDULED · TYPICAL SCHEDULE

DL 657 · SLC → BOS

departs 9:50 AM MT · arrives 4:36 PM ET
Forecast issued Tue 9:00 PM ET · 39h before departure
Arrive at BOS more than 15 minutes late?
12% chance · ±2 pts +1 pt · 24h
HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.
WEATHER FORECASTS LIVE IN THE AIR 0% 5% 10% 15% 20% 2.8d 2d Now 1d 12h 6h Departs Lands

How late will it get to BOS?

  1. On time or early
    88%
  2. 15–30 min late
    5%
  3. 30 min–1 hour late
    4%
  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%.