Singapore Airlines
flight
SQ 1721:
Phoenix Sky Harbor - Seattle-Tacoma
Phoenix Sky Harbor - Seattle-Tacoma
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
FLIGHT SCHEDULE
Direct Codeshare Flights:
Singapore Airlines SQ1721
Effective 2025-10-04 through 2025-10-25
Mon
-
-
Tue
Wed
-
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 605)
Duration: 2:59, non-stop Boeing 737 (73J)
Singapore Airlines SQ1721
Effective 2025-10-27 through 2025-11-01
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 609)
Duration: 3:00, non-stop Boeing 737 (73J)
Singapore Airlines SQ1721
Effective 2025-05-16 through 2025-05-23
Mon
Tue
-
-
Wed
Thu
-
-
Fri
Sat
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 870)
Duration: 3:10, non-stop Boeing 737 (73J)
Singapore Airlines SQ1721
Effective 2025-05-24 through 2025-05-31
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 870)
Duration: 3:10, non-stop Boeing 737-800 (73H)
Singapore Airlines SQ1721
Effective 2025-05-28 through 2025-06-11
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 870)
Duration: 3:10, non-stop Boeing 737 (73J)
Singapore Airlines SQ1721
Operates only on 2025-06-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 870)
Duration: 3:10, non-stop Boeing 737-800 (73H)
Singapore Airlines SQ1721
Valid until 2025-05-05
Mon
Tue
-
-
Wed
Thu
-
-
Fri
Sat
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 609)
Duration: 3:08, non-stop Boeing 737 (73J)
Singapore Airlines SQ1721
Operates only on 2025-05-07
Mon
-
-
Tue
-
-
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 609)
Duration: 3:08, non-stop Boeing 737 MAX 9 (7M9)
Singapore Airlines SQ1721
Effective 2025-05-09 through 2025-05-14
Mon
Tue
-
-
Wed
Thu
-
-
Fri
Sat
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 609)
Duration: 3:08, non-stop Boeing 737 (73J)
Singapore Airlines SQ1721
Effective from 2025-11-03
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 609)
Duration: 3:00, non-stop Boeing 737 (73J)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
Parallax here PHX-SEA
- SQ 1721 is a domestic flight departing from the Phoenix Sky Harbor airport (PHX) and arriving at Seattle-Tacoma airport (SEA).
- The flight distance is 1106 miles, or 1781 km.
- The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
- For direct flights, the flight time varies between 2:59 and 3:10.