United Airlines UA1721 Flight Status : Live Tracking & Updates

Domestic flight United Airlines UA1721 takes off from San Francisco (SFO) United States to Kailua-Kona (KOA) United States. It's operated by United Airlines. The plane leaves San Francisco International Airport at 08:10 25 May 2026 America/Los_Angeles. The flight is expected to land at Kona International Airport at Keahole at 10:40 25 May 2026 Pacific/Honolulu. The flight will last about 5 hours 30 minutes.

Current status of UA1721 is Departed On time Estimated Arrival in 4 hours, 51 minutes

UA1721 - UAL1721 United Airlines (UA)
SFO San Francisco United States
Flight SFO to KOA
KOA Kailua-Kona United States
Departed On time Estimated Arrival in 4 hours, 51 minutes
Departure San Francisco International Airport
IATA: SFOICAO: KSFO
Scheduled 08:10 25 May 2026
Actual 08:12 25 May 2026
3 F11
Arrival Kona International Airport at Keahole
IATA: KOAICAO: PHKO
Scheduled 10:40 25 May 2026
Estimated 10:27 25 May 2026
1 2
UA1721 Detail
  • Type: Domestic Flight
  • Code Shares: AC 3529, AZ 4487
  • Flight Duration: 5 hours 30 minutes
  • Flight Distance: 3808 kms / 2366 miles
Airline
  • United Airlines
  • IATA: UA
  • ICAO: UAL
  • Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Passenger Services
  • Service type: Normal passenger
  • Seats: 167
  • Freight capacity: 17.1 tons
  • Passenger classes: First Class, Economy, Business Class, Shuttle
More Detail
  • Aircraft: Boeing 757-300 (winglets) Passenger
  • Callsign: F-SAT6
  • Departure Timezone: America/Los_Angeles
  • Arrival Timezone: Pacific/Honolulu
  • Current Time in San Francisco: Monday 2026-05-25 08:36 AM
  • Current Time in Kailua-Kona: Monday 2026-05-25 05:36 AM

United Airlines UA1721 Flight Statistics

United Airlines
United Airlines
FLIGHT NO UA1721
AIRPLANE Boeing 757-300 (winglets) Passenger
ON TIME 11
DELAYED 3
CANCELLED 0
ON TIME 25
DELAYED 5
CANCELLED 0
ON TIME 49
DELAYED 11
CANCELLED 0
ON TIME 66
DELAYED 18
CANCELLED 0
Last 14 days flight data
14 30 60 90
On Time Rate

United Airlines UA1721 Flight Schedule and Histories

Time Departure Arrival Actual departure Actual arrival
Sun 24 May
Scheduled On time
San Francisco (SFO) 2026-05-24T08:10
Kailua-Kona (KOA) 2026-05-24T10:40
Sat 23 May
Arrived On time
San Francisco (SFO) 2026-05-23T08:10
Kailua-Kona (KOA) 2026-05-23T10:40
2026-05-23T08:10
2026-05-23T10:22
Fri 22 May
Arrived On time
San Francisco (SFO) 2026-05-22T08:10
Kailua-Kona (KOA) 2026-05-22T10:40
2026-05-22T08:13
2026-05-22T10:43
Thu 21 May
Arrived On time
San Francisco (SFO) 2026-05-21T08:10
Kailua-Kona (KOA) 2026-05-21T10:40
2026-05-21T08:18
2026-05-21T10:34
Wed 20 May
Arrived On time
San Francisco (SFO) 2026-05-20T08:10
Kailua-Kona (KOA) 2026-05-20T10:47
2026-05-20T08:07
2026-05-20T10:22
Tue 19 May
Arrived On time
San Francisco (SFO) 2026-05-19T08:10
Kailua-Kona (KOA) 2026-05-19T10:47
2026-05-19T08:10
2026-05-19T10:30
Mon 18 May
Arrived On time
San Francisco (SFO) 2026-05-18T08:10
Kailua-Kona (KOA) 2026-05-18T10:47
2026-05-18T08:13
2026-05-18T10:40
Sun 17 May
Arrived On time
San Francisco (SFO) 2026-05-17T08:10
Kailua-Kona (KOA) 2026-05-17T10:47
2026-05-17T08:09
2026-05-17T10:40
Sat 16 May
Arrived On time
San Francisco (SFO) 2026-05-16T08:10
Kailua-Kona (KOA) 2026-05-16T10:47
2026-05-16T08:06
2026-05-16T10:28
Fri 15 May
Arrived On time
San Francisco (SFO) 2026-05-15T08:10
Kailua-Kona (KOA) 2026-05-15T10:47
2026-05-15T08:02
2026-05-15T10:29

Flight routes similar to United Airlines UA1721

Airline Flight no Departure Arrival
Air Canada AC3528
Air Canada 		25/05/2026
16:55 		5 hours 36 minutes
19:31
United Airlines UA731
United Airlines 		25/05/2026
19:08 		5 hours 37 minutes
21:45
United Airlines UA1723
United Airlines 		25/05/2026
16:55 		5 hours 36 minutes
19:31
Air Canada AC3529
Air Canada 		25/05/2026
08:10 		5 hours 13 minutes
10:40
Lufthansa LH8594
Lufthansa 		25/05/2026
16:55 		5 hours 36 minutes
19:31
Avianca AV2356
Avianca 		25/05/2026
16:55 		5 hours 3 minutes
19:31
Alaska Airlines AS39
Alaska Airlines 		25/05/2026
07:00 		5 hours 3 minutes
09:36
Hawaiian Airlines HA6981
Hawaiian Airlines 		25/05/2026
07:00 		5 hours 34 minutes
09:37

United Airlines Flight UA1721 FAQs

What is the scheduled flight duration for United Airlines UA1721 flight?

On average, nonstop flight takes 5 hour(s) 30 minutes, with the flight distance of 3808 km (2366 miles).

What is the current status of United Airlines UA1721 flight?

The current status of flight United Airlines UA1721 is Departed On time.

What type of aircraft is used for the United Airlines UA1721 flight?

All United Airlines UA1721 flights are operated using Boeing 757-300 (winglets) Passenger aircraft.

When does the flight United Airlines UA1721 arrive?

Flight United Airlines UA1721 arrives at 10:40.

Which terminal the flight United Airlines UA1721 is arriving at?

Flight United Airlines UA1721 arrives in Kona International Airport at Keahole at Terminal 1.

How many United Airlines UA1721 flights are operated a week?

7 flights per week. The Flight United Airlines UA1721 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday .