Schedule: a typical Sunday (the flights of Jul 26, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 2677SCHEDULED · TYPICAL ODDS
DL 2677 · BNA → BOS
departs 5:35 PM CT · arrives 9:19 PM ET
Forecast issued Tue 6:00 PM ET · 121h before departure
Typical odds
Too early for a weather forecast — these are typical odds for this flight on a Sunday 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 · ±45 pts+0 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
61%
15–30 min late
6%
30 min–1 hour late
13%
1–2 hours late
15%
Over 2 hours late
5%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.