Singapore Airlines SQ1721 Flight Status Today

Domestic flight Singapore Airlines SQ1721 takes off from Phoenix (PHX) United States to Seattle (SEA) United States. It's operated by Singapore Airlines. The plane leaves Phoenix Sky Harbor International Airport at 20:49 America/Phoenix. The flight is expected to land at Seattle International Airport at 23:59 America/Los_Angeles. The flight will last about 3 hours 10 minutes.

SQ1721 - SIA1721 Singapore Airlines (SQ)
PHX Phoenix United States
Flight PHX to SEA
SEA Seattle United States
Contact Airlines It may not operate on the date requested
Departure Phoenix Sky Harbor International Airport
IATA: PHXICAO: KPHX
Scheduled 20:49
3 E2
Arrival Seattle International Airport
IATA: SEAICAO: KSEA
Scheduled 23:59
None D2
SQ1721 Detail
  • Type: Domestic Flight
  • Flight Duration: 3 hours 10 minutes
  • Flight Distance: 1781 kms / 1106 miles
Airline
  • Singapore Airlines
  • IATA: SQ
  • ICAO: SIA
  • Operating Days: Monday, Wednesday, Thursday, Friday, Saturday, Sunday
Passenger Services
  • Service type: None
  • Seats: None
  • Freight capacity: None
  • Passenger classes: None
More Detail
  • Aircraft: Boeing 737-900 Passenger (Scimitar Winglets)
  • Callsign: None
  • Departure Timezone: America/Phoenix
  • Arrival Timezone: America/Los_Angeles
  • Current Time in Phoenix: Tuesday 2026-03-24 15:47 PM
  • Current Time in Seattle: Tuesday 2026-03-24 15:47 PM

Flight routes similar to Singapore Airlines SQ1721

Airline Flight no Departure Arrival
Delta DL2444
Delta 		24/03/2026
06:15 		2 hours 59 minutes
09:24
Hawaiian Airlines HA6438
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06:00 		3 hours 6 minutes
09:13
Hawaiian Airlines HA6437
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12:06 		3 hours 14 minutes
15:20
Alaska Airlines AS609
Alaska Airlines 		24/03/2026
20:45 		3 hours 14 minutes
23:59
Frontier Airlines F91723
Frontier Airlines 		24/03/2026
17:49 		3 hours 14 minutes
21:03
Jambojet JX7013
Jambojet 		24/03/2026
16:02 		3 hours 15 minutes
19:17
Hawaiian Airlines HA6440
Hawaiian Airlines 		24/03/2026
18:17 		2 hours 59 minutes
21:31
Qatar Airways QR2185
Qatar Airways 		24/03/2026
08:20 		3 hours 6 minutes
11:37

Singapore Airlines Flight SQ1721 FAQs

What is the scheduled flight duration for Singapore Airlines SQ1721 flight?

On average, nonstop flight takes 3 hour(s) 10 minutes, with the flight distance of 1781 km (1106 miles).

What type of aircraft is used for the Singapore Airlines SQ1721 flight?

All Singapore Airlines SQ1721 flights are operated using Boeing 737-900 Passenger (Scimitar Winglets) aircraft.

How many Singapore Airlines SQ1721 flights are operated a week?

6 flights per week. The Flight Singapore Airlines SQ1721 is operated on Monday, Wednesday, Thursday, Friday, Saturday, Sunday.