United Airlines
UA1721 Flight Status
Based on Trip.com’s real-time data, the UA1721 flight operated by United Airlines on Oct 14, 2026 is scheduled to fly from San Francisco (SFO) to Kailua-Kona (KOA). The flight is expected to depart at 08:10 (local time in San Francisco, UTC-7) and land at 10:05 (local time in Kailua-Kona, UTC-10) .
Tue, Oct 13
Wed, Oct 14
Thu, Oct 15
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En route
Your flight has departed San Francisco and is expected to arrive in Kailua-Kona at 10:18.
5h 33m
Check-in Counter
--
Boarding Gate
E5
Arrival Gate
2
Baggage
A1
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United Airlines
From TWD 8,448
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Scheduled
Your flight will depart on time.
5h 33m
Check-in Counter
--
Boarding Gate
E3
Arrival Gate
2
Baggage
A1
Need a flight from San Francisco to Kailua-Kona?
United Airlines
From TWD 8,448
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Scheduled
Your flight will depart on time.
5h 33m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
2
Baggage
A1
Need a flight from San Francisco to Kailua-Kona?
United Airlines
From TWD 8,448
Search flights
Information provided by VariFlight
For the latest updates, please refer to airport announcements or consult your airline.
You can also explore more flights from San Francisco to Kailua-Kona or track other flights with our flight status tracker.
UA1721 Aircraft Details
According to Trip.com real-time data, the UA1721 flight flying from San Francisco to Kailua-Kona on 10/14/2026 is operated by the aircraft model Boeing 737-900. This aircraft has been in service for 8m. The aircraft is equipped with 179 seats.
Boeing 737-900
Punctuality (Departure)
83
%
Punctuality (Arrival)
93
%
Early on average
13 minutes
Age
8m
Seats
179
Distance
--
Economy
First
Premium Economy
Onboard Amenities
None
On-demand entertainment
Wi-Fi (additional charge)
Power outlet
Seating Plan
--
Legroom
--
Seat width
100°
Reclining Angle
3-3
Seat layout example
Onboard Amenities
Meal included
On-demand entertainment
Wi-Fi (additional charge)
Power outlet
Seating Plan
94 cm
More legroom than on 11% of flights
51 cm
Seat width
120°
Reclining Angle
2-2
Seat layout example
Onboard Amenities
Meal included
Entertainment available, please bring your own device
Wi-Fi is available
Power outlet
Seating Plan
--
Legroom
--
Seat width
105°
Reclining Angle
--
Seat layout example
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Flight History for UA1721
Trip.com historical records show that the last UA1721 flight departed on Tue, Oct 13 from SFO at approximately 08:23. This flight is expected to arrrive in KOA at 10:18.
| Date | Airport | Aircraft Type | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Fri, Oct 9 | San Francisco (SFO) | Kailua-Kona (KOA) | B39M | 08:25 | 10:03 | Arrived |
| Sat, Oct 10 | San Francisco (SFO) | Kailua-Kona (KOA) | B39M | 08:33 | 10:16 | Arrived |
| Sun, Oct 11 | San Francisco (SFO) | Kailua-Kona (KOA) | B39M | 08:17 | 10:05 | Arrived |
| Mon, Oct 12 | San Francisco (SFO) | Kailua-Kona (KOA) | B39M | 08:23 | 10:12 | Arrived |
| Tue, Oct 13 | San Francisco (SFO) | Kailua-Kona (KOA) | B39M | 08:23 | 10:18 | En route |
| Wed, Oct 14 | San Francisco (SFO) | Kailua-Kona (KOA) | B39M | 08:10 | 10:05 | Scheduled |
| Thu, Oct 15 | San Francisco (SFO) | Kailua-Kona (KOA) | B39M | 08:10 | 10:43 | Scheduled |
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UA1721 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA1721 is 83% (Late on average 24 minutes), and the on-time arrival rate is 93% (Early on average 13 minutes).
On-Time Departures
Punctuality
83
%
Late on average
24 minutes
Early
0
%
On time
83
%
30 mins late
10
%
60 mins late
3
%
90 mins late
3
%
Cancelled
0
%
On-Time Arrivals
Punctuality
93
%
Early on average
13 minutes
Early
83
%
On time
10
%
30 mins late
3
%
60 mins late
3
%
90 mins late
0
%
Cancelled
0
%
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Frequently Asked Questions
-
What is the current status of flight ua1721?
Flight ua1721 has not departed yet and is currently on schedule. Scheduled departure 08:10, arrival 10:43 (updated Oct 14, 2026). -
Is flight ua1721 on time today?
Flight ua1721 has not departed yet and is currently on schedule. Scheduled departure is 08:10, with arrival at 10:43. Recheck gate and timing before you head to the airport. -
Has flight ua1721 departed yet? What is the departure time?
Flight ua1721 is scheduled to depart at 08:10. The latest actual or estimated departure time is 08:10, and the current status is Scheduled (updated Oct 14, 2026). -
When is flight ua1721 scheduled to arrive?
Flight ua1721 is scheduled to arrive at 10:43. The latest estimated or actual arrival time is 10:05. Status is Scheduled as of Oct 14, 2026. -
What is the gate information for flight ua1721?
For flight ua1721, the departure terminal is T3 and the boarding gate is E3. Gate assignments can change at short notice—confirm on airport screens before heading to security. -
What is the baggage carousel number for flight ua1721?
After arrival, baggage for flight ua1721 is expected at carousel A1 in terminal T1. Carousel numbers are assigned close to landing and may change—follow airport signs on arrival. -
What route does flight ua1721 fly?
Flight ua1721 is operated by United Airlines from San Francisco (SFO) to Kailua-Kona (KOA). Typical flight time is about 5 hours33 minutes; operating days may include Wednesday. -
How can I check real-time status for flight ua1721?
Track flight ua1721 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications. -
If flight ua1721 is delayed or canceled, what should I do?
If ua1721 is delayed or canceled, first confirm the latest status here (Scheduled, updated Oct 14, 2026). Contact United Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com. -
Has flight ua1721 departed from San Francisco?
Flight ua1721 has not departed from San Francisco (SFO) yet and is currently on schedule for 08:10. -
What is the seat configuration for flight ua1721?
Flight ua1721 usually flies a Boeing 737-900 with seat layout 3-3. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Destination Info: Kailua-Kona Weather & Time
Mostly cloudy
|
22°C - 29°C
Expected weather conditions upon arrival
-3 hour time difference
Time on arrival: San Francisco 13:43
|
Kailua-Kona 10:43
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