Skip to content

Delta Air Lines

Is DL1399 delayed?

Each route and date is shown separately. Confirm that both airports match your booking.

Service date: · Scheduled departure date (America/New_York)

Arrived

18 min early

Updated

Departure

Miami

MIA

Actual

Scheduled 11:50

Aug 26

Arrival

Boston

BOS

Actual

Scheduled 15:22

Aug 26

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual

Service date: · Scheduled departure date (America/New_York)

Arrived

21 min early

Official source · Updated

Departure

Boston

BOS

Actual

Scheduled 07:20

Aug 26

Arrival

Miami

MIA

Actual

Scheduled 10:52

Aug 26

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: Miami → BostonMIABOS
Route overview
Route overview: Boston → MiamiBOSMIA
Route overview

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • BOS → MIA

    28 min early

  • MIA → BOS

    5 min late

  • BOS → MIA

    50 min early

  • BOS → MIA

    44 min early

  • BOS → MIA

    32 min early
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
45
Arrivals over 15 minutes late
12
Observed cancellations
1
Observed occurrences
50

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

DL1399 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedBostonMiami
-28
Sep 16, 2026ArrivedMiamiBoston
5
Sep 16, 2026ArrivedBostonMiami
-50
Sep 15, 2026ArrivedBostonMiami
-44
Sep 14, 2026ArrivedBostonMiami
-32
Sep 13, 2026ArrivedBostonMiami
-6
Sep 12, 2026ArrivedBostonMiami
11
Sep 11, 2026ArrivedMiamiBoston
41
Sep 11, 2026ArrivedBostonMiami
22
Sep 10, 2026ArrivedBostonMiami
2
Sep 9, 2026ArrivedBostonMiami
20
Sep 8, 2026ArrivedMiamiBoston
-12
Sep 8, 2026CancelledBostonMiamiNot available
Not available
Sep 7, 2026ArrivedMiamiBoston
-2
Sep 7, 2026ArrivedBostonMiami
15
Sep 6, 2026ArrivedMiamiBoston
-22
Sep 6, 2026ArrivedBostonMiami
-42
Sep 5, 2026ArrivedMiamiBoston
-14
Sep 5, 2026ArrivedBostonMiami
-29
Sep 4, 2026ArrivedMiamiBoston
38
Sep 4, 2026ArrivedBostonMiami
31
Sep 3, 2026ArrivedMiamiBoston
-25
Sep 3, 2026ArrivedBostonMiami
-4
Sep 2, 2026ArrivedBostonMiami
-20
Sep 1, 2026ArrivedMiamiBoston
73
Sep 1, 2026ArrivedBostonMiami
-31
Aug 31, 2026ArrivedMiamiBoston
-28
Aug 31, 2026ArrivedBostonMiami
-16
Aug 30, 2026ArrivedMiamiBoston
-30
Aug 30, 2026ArrivedBostonMiami
2
Aug 29, 2026ArrivedMiamiBoston
51
Aug 29, 2026ArrivedBostonMiami
19
Aug 28, 2026ArrivedMiamiBoston
-14
Aug 28, 2026ArrivedBostonMiami
-5
Aug 27, 2026ArrivedMiamiBoston
24
Aug 27, 2026ArrivedBostonMiami
-25
Aug 26, 2026ArrivedMiamiBoston
-18
Aug 26, 2026ArrivedBostonMiami
-21
Aug 25, 2026ArrivedMiamiBoston
-22
Aug 25, 2026ArrivedBostonMiami
-17
Aug 24, 2026ArrivedMiamiBoston
22
Aug 23, 2026ArrivedMiamiBoston
17
Aug 23, 2026ArrivedBostonMiami
-7
Aug 22, 2026ArrivedMiamiBoston
-39
Aug 22, 2026ArrivedBostonMiami
-25

Essential cookies keep the site running; analytics are optional. Privacy policy