| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 18 | SFO | KOA | 08:40 | 10:30 |
En-Route
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| Jul 17 | SFO | KOA | 08:28 | 10:26 |
Landed
|
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| Jul 16 | SFO | KOA | 08:25 | 10:21 |
Landed
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| Jul 15 | SFO | KOA | 08:38 | 10:28 |
Landed
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| Jul 14 | SFO | KOA | 08:41 | 10:34 |
Landed
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| Jul 13 | SFO | KOA | 09:13 | 10:51 |
Landed
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| Jul 12 | SFO | KOA | 08:32 | 10:29 |
Landed
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| Jul 11 | SFO | KOA | 08:40 | 10:24 |
Landed
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| Jul 10 | SFO | KOA | 08:23 | 10:16 |
Landed
|
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| Jul 09 | SFO | KOA | 08:56 | 10:56 |
Landed Late
|
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United Airlines Flight UA1721 connects San Francisco, United States to Kailua-Kona, United States, taking off from San Francisco International Airport SFO and landing at Kona International Airport KOA.
How long is the UA1721 flight from San Francisco to Kailua-Kona?
The average flight time from San Francisco to Kailua-Kona is 4 hours and 51 minutes. The flight distance is 3808 km / 2366 miles and the average flight speed is 783 km/h / 487 mph.
How many UA1721 flights are operated per week?
7 flights per week. The flight UA1721 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of United Airlines Flight UA1721 San Francisco to Kailua-Kona?
The Airportia On-Time Performance Rating for United Airlines Flight UA1721 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA1721 arriving at?
Flight UA1721 arrives at Kona International Airport (KOA) Terminal 1.
When was the latest UA1721 flight?
The latest flight took off on Saturday, July 18th, 2026 with the flight status being En-Route on 10:30.
How else can the flight UA1721 be referenced as?
This United Airlines flight can also be referenced as UAL1721, UA 1721, UAL 1721.
How often is flight UA1721 delayed?
On average, 20% of all UA1721 flights are delayed. The average delay is 13 minutes.
Can I get compensation for my delayed or cancelled UA1721 flight or baggage issues?
If your UA1721 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our UA1721 Flight Tracker above for more details.
Flight UA1721 is code-shared by 3 airlines using the flight numbers AC3529, AZ4487, AV2356
Other flights departing from San Francisco SFO: AC756, UA608, UA5301, UA6014
Other flights arriving at Kailua-Kona KOA: AS252, HA825, HA1058, WN675
All flights connecting San Francisco SFO to Kailua-Kona KOA.
