Delta Air Lines
Is DL1399 delayed?
Yes, DL1399 left Boston 23 min late, at 07:51 on Nov 14. Arrival time not confirmed yet.
Usually on time: arrived within 15 min of schedule on 9 of the last 14 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
23 min late
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Boston
BOS
Actual
Scheduled 07:28
Nov 14
Arrival
Miami
MIA
Scheduled
Nov 14
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
No live update yet
Showing the published schedule until live times come in.
Update time unavailable
Departure
Miami
MIA
Scheduled
Nov 14
Arrival
Boston
BOS
Scheduled
Nov 14
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Also sold as AM3474, LY4213, LA6444
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 139 min late
Boston → Miami
- 92 min late
Miami → Boston
- 23 min late
Boston → Miami
- 44 min late
Miami → Boston
- On schedule (7 min behind)
Boston → Miami
Is DL1399 usually late?
Period: Oct 15, 2026 – Nov 14, 2026
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.
At the airports today
Boston (BOS) departures
- Left more than 15 min late
- 14 of 32
- Cancelled today
- 50
Miami (MIA) departures
- Left more than 15 min late
- 20 of 46
- Cancelled today
- 23
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 13, 2026Cancelled | Hartford | Boston | Not available | Not available |
| Nov 13, 2026Arrived | Boston | Miami | 139 | |
| Nov 12, 2026Arrived | Miami | Boston | 92 | |
| Nov 12, 2026Arrived | Boston | Miami | 23 | |
| Nov 11, 2026Arrived | Miami | Boston | 44 | |
| Nov 11, 2026Arrived | Boston | Miami | 7 | |
| Nov 10, 2026Arrived | Miami | Boston | 7 | |
| Nov 10, 2026Arrived | Boston | Miami | -11 | |
| Nov 9, 2026Arrived | Miami | Boston | -3 | |
| Nov 9, 2026Arrived | Boston | Miami | -2 | |
| Nov 8, 2026Arrived | Boston | Miami | 5 | |
| Nov 7, 2026Arrived | Boston | Miami | 7 | |
| Nov 6, 2026Arrived | Boston | Miami | 20 | |
| Nov 5, 2026Arrived | Boston | Miami | -1 | |
| Nov 4, 2026Arrived | Boston | Miami | -12 |