Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 522SCHEDULED · TYPICAL SCHEDULE
Today
DL 522 · FLL → BOS
departs 8:51 PM ET · arrives 12:16 AM ET
Forecast issued Tue 3:00 PM ET · 6h before departure
Odds over time
Arrive at BOS more than 15 minutes late?
27%chance · ±2 pts+5 pts · 24h
HOW SURE WE AREHigh. The odds now come mostly from live FAA and airport data.
How late will it get to BOS?
On time or early
71%
15–30 min late
2%
30 min–1 hour late
15%
1–2 hours late
6%
Over 2 hours late
3%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.