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Delta Air Lines

Is DL977 delayed?

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

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

Arrived

65 min late

Official source · Updated

Departure

San Francisco

SFO

Actual

Scheduled 12:32

Sep 16

Arrival

Boston

BOS

Actual

Scheduled 20:21

Sep 16

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual

Service date: · Scheduled arrival date; departure time unavailable (America/Los_Angeles)

Arrived

1 min early

Official source · Updated

Departure

Boston

BOS

Scheduled

Not available

Arrival

San Francisco

SFO

Actual

Scheduled 11:04

Sep 16

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Not available
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: San Francisco → BostonSFOBOS
Route overview
Route overview: Boston → San FranciscoBOSSFO
Route overview

Recent arrivals

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

  • BOS → SFO

    2 min early

  • SFO → BOS

    65 min late

  • BOS → SFO

    1 min early

  • SFO → BOS

    21 min late

  • BOS → SFO

    2 min early
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
42
Arrivals over 15 minutes late
11
Observed cancellations
0
Observed occurrences
57

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

DL977 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedBostonSan Francisco
-2
Sep 16, 2026ArrivedSan FranciscoBoston
65
Sep 16, 2026ArrivedBostonSan Francisco
-1
Sep 15, 2026ArrivedSan FranciscoBoston
21
Sep 15, 2026ArrivedBostonSan Francisco
-2
Sep 14, 2026ArrivedSan FranciscoBoston
54
Sep 14, 2026ArrivedBostonSan Francisco
-4
Sep 13, 2026ArrivedSan FranciscoBoston
109
Sep 13, 2026ArrivedBostonSan Francisco
-9
Sep 12, 2026ArrivedSan FranciscoBoston
-15
Sep 12, 2026ArrivedBostonSan Francisco
-7
Sep 11, 2026ArrivedSan FranciscoBoston
30
Sep 11, 2026ArrivedBostonSan Francisco
-18
Sep 10, 2026ArrivedSan FranciscoBoston
0
Sep 10, 2026ArrivedBostonSan Francisco
-12
Sep 9, 2026ArrivedSan FranciscoBoston
16
Sep 9, 2026ArrivedBostonSan Francisco
-9
Sep 8, 2026ArrivedSan FranciscoBoston
-2
Sep 8, 2026ArrivedBostonSan Francisco
-15
Sep 7, 2026ArrivedSan FranciscoBoston
-6
Sep 7, 2026ArrivedBostonSan Francisco
-35
Sep 6, 2026ArrivedSan FranciscoBoston
129
Sep 6, 2026ArrivedBostonSan Francisco
-4
Sep 5, 2026ArrivedSan FranciscoBoston
-20
Sep 5, 2026ArrivedBostonSan Francisco
-17
Sep 4, 2026ArrivedSan FranciscoBoston
25
Sep 4, 2026ArrivedBostonSan Francisco
34
Sep 3, 2026ArrivedSan FranciscoBoston
8
Sep 3, 2026ArrivedBostonSan Francisco
-9
Sep 2, 2026ArrivedSan FranciscoBoston
22
Sep 2, 2026ArrivedBostonSan Francisco
-4
Sep 1, 2026ArrivedBostonSan Francisco
-16
Aug 31, 2026ArrivedBostonSan Francisco
14
Aug 30, 2026ArrivedBostonSan Francisco
-2
Aug 29, 2026ArrivedBostonSan Francisco
-16
Aug 28, 2026ArrivedSan FranciscoBoston
-3
Aug 28, 2026ArrivedBostonSan Francisco
-27
Aug 27, 2026ArrivedBostonSan Francisco
-32
Aug 26, 2026ArrivedBostonSan Francisco
-23
Aug 25, 2026ArrivedBostonSan Francisco
-23
Aug 24, 2026ArrivedBostonSan Francisco
58
Aug 23, 2026ArrivedBostonSan Francisco
-23

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