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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

3 min early

Updated

Departure

San Francisco

SFO

Actual

Scheduled 12:25

Aug 28

Arrival

Boston

BOS

Actual

Scheduled 21:07

Aug 28

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

27 min early

Official source · Updated

Departure

Boston

BOS

Actual

Scheduled 07:35

Aug 28

Arrival

San Francisco

SFO

Actual

Scheduled 11:09

Aug 28

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

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.

  • SFO → BOS

    65 min late

  • BOS → SFO

    1 min early

  • SFO → BOS

    21 min late

  • BOS → SFO

    2 min early

  • SFO → BOS

    54 min late
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
41
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 16, 2026ArrivedSan FranciscoBoston
View this flight’s market
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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