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Singapore Airlines

Is SQ1539 delayed?

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

Arrived

4 min late

Official source · Updated

Departure

Boston

BOS

Scheduled

Not available

Arrival

San Francisco

SFO

Actual

Scheduled 19:22

Sep 7

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Not available
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Actual

Operating flight: JBU233

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

    95 min late

  • BOS → SFO

    47 min late

  • BOS → SFO

    19 min late

  • BOS → SFO

    1 min early

  • BOS → SFO

    79 min late
Flight history and details

Aug 19, 2026 — Sep 18, 2026

Observed arrivals
14
Arrivals over 15 minutes late
8
Observed cancellations
1
Observed occurrences
15

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

SQ1539 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 18, 2026ArrivedBostonSan Francisco
95
Sep 17, 2026ArrivedBostonSan Francisco
47
Sep 16, 2026ArrivedBostonSan Francisco
19
Sep 15, 2026ArrivedBostonSan Francisco
-1
Sep 14, 2026ArrivedBostonSan Francisco
79
Sep 13, 2026ArrivedBostonSan Francisco
4
Sep 12, 2026ArrivedBostonSan Francisco
84
Sep 11, 2026ArrivedBostonSan Francisco
26
Sep 10, 2026ArrivedBostonSan Francisco
43
Sep 8, 2026ArrivedBostonSan Francisco
-8
Sep 7, 2026ArrivedBostonSan Francisco
4
Sep 6, 2026ArrivedBostonSan Francisco
-15
Sep 5, 2026ArrivedBostonSan Francisco
-31
Sep 4, 2026ArrivedBostonSan Francisco
41
Sep 3, 2026CancelledBostonSan FranciscoNot available
Not available

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