SQ1539 Flight Status Singapore Airlines: Boston to San Francisco (SIA1539)

Singapore Airlines SQ 1539

Landed On Time

BOS Boston

Scheduled
20:59
Actual
21:35

Terminal: C | Gate: C25

Departure: Sun, Nov 8, 2026 · local time EST

Boston Logan International Airport (BOS)

All BOS Departures >

SFO San Francisco

Scheduled
00:44
Actual
00:32

Terminal: 1 | Gate: B18

Arrival: Mon, Nov 9, 2026 · local time PST

San Francisco International Airport (SFO)

All SFO Arrivals >

Landed 3h 56m ago 100%

BOS 21:35 SFO 00:32 +1

4,341 km (2,697 mi) flown

Route map BOS to SFO Map of the great-circle route from Boston Logan International Airport, United States to San Francisco International Airport, United States, 4341 km. The plane shows an estimated position based on departure and arrival times. Map data: Natural Earth. UNITED STATES BOS SFO Map data: Natural Earth

Estimated position based on departure and arrival times, not live tracking. Times are local at each airport.

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Distance: 4341 km / 2697 miles · Scheduled Duration: 06:45 · Actual Duration: 05:57

SQ 1539 Flight Status & Schedule Singapore Airlines Boston to San Francisco

Date From To Departure Arrival Status Details
Nov 08 BOS SFO 21:35 00:32 Landed Track >
Nov 07 BOS SFO 06:11 09:00 Landed Track >
Nov 06 BOS SFO 20:47 23:16 Landed Track >
Nov 05 BOS SFO 21:33 00:25 Landed Track >
Nov 04 BOS SFO 20:52 23:36 Landed Track >
Nov 03 BOS SFO 23:23 02:18 Delayed Track >
Nov 02 BOS SFO 20:56 23:54 Landed Track >
Nov 01 BOS SFO 20:55 23:52 Landed Track >
Oct 31 BOS SFO 06:20 09:53 Landed Track >

Singapore Airlines operates SQ 1539 from Boston to San Francisco, a 4,341 km (2,697 mi) trip, six times a week (Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday). With 6 h 45 min in the timetable and a usual flight time of about 5 h 55 min, it often makes up time. Yesterday it left 36 minutes late and still landed at 00:32 the next morning, 12 minutes early.

< All Boston BOS Departures All San Francisco SFO Arrivals >

About SQ 1539

Route
Boston Logan International Airport BOS to San Francisco International Airport SFO
Distance
4,341 km (2,697 mi)
Typical flight time
5 h 55 min
Flies
Tue, Wed, Thu, Fri, Sat, Sun
On time
8 of the last 8
Usually departs from
Terminal C

SQ 1539 FAQ

How long is the SQ1539 flight?
The timetable allows 6 h 45 min. Boston to San Francisco is 4,341 km (2,697 mi).
How often is SQ1539 late?
None of the last 8 flights arrived 15 or more minutes late.
Which days does SQ1539 fly?
Six times a week: Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday, based on the schedule of the last 7 days.
Which terminal does SQ1539 use?
It usually leaves from Terminal C at Boston Logan International Airport (BOS). Check the flight card above for today's terminal and gate.
What other flight numbers does SQ1539 have?
Also listed as SIA1539 (Singapore Airlines' ICAO code) and SQ 1539.

SQ1539 and Boston BOS to San Francisco SFO Flights

Flight SQ1539 is a code-share Singapore Airlines flight of the JetBlue Airways operated B6333.

Other flights departing from Boston BOS: B6333, B6601, B61897

Other flights arriving at San Francisco SFO: B6333, AA177, UA2106

All flights connecting Boston BOS to San Francisco SFO.