Schedule: the flights that flew on Wednesday, Sep 30, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1020SCHEDULED · TYPICAL ODDS
DL 1020 · LAS → BOS
departs 11:21 AM PT · arrives 7:20 PM ET
Forecast issued Fri 4:00 PM ET · 118h before departure
Typical odds
Too early for a weather forecast — these are typical odds for this flight on a Wednesday in October, from the weather this date has had in past years (the range shows how much they varied). They’ll switch to forecast-based odds about 3 days before departure.
Odds over time
Arrive at BOS more than 15 minutes late?
39%chance · ±29 pts– · 24h
HOW SURE WE ARELow. This is mostly a starting point from history; weather forecasts haven't kicked in yet.
How late will it get to BOS?
On time or early
60%
15–30 min late
10%
30 min–1 hour late
19%
1–2 hours late
6%
Over 2 hours late
4%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.