Is UA1721 delayed?
Service date: · Scheduled departure date (America/Los_Angeles)
Arrived
52 min late
Official source · Updated
Departure
San Francisco
SFO
Actual
Scheduled 08:38
Sep 15
Arrival
Kailua/Kona
KOA
Actual
Scheduled 20:43
Sep 15
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
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SFOKOA
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 52 min late
SFO → KOA
- 9 min early
SFO → KOA
- 8 min late
SFO → KOA
- 8 min early
SFO → KOA
- 155 min late
SFO → KOA
Flight history and details
Aug 17, 2026 — Sep 16, 2026
- Observed arrivals
- 11
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 0
- Observed occurrences
- 30
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 15, 2026Arrived | San Francisco | Kailua/Kona | 52 | |
| Sep 14, 2026Arrived | San Francisco | Kailua/Kona | -9 | |
| Sep 12, 2026Arrived | San Francisco | Kailua/Kona | 8 | |
| Sep 11, 2026Arrived | San Francisco | Kailua/Kona | -8 | |
| Sep 10, 2026Arrived | San Francisco | Kailua/Kona | 155 | |
| Sep 9, 2026Arrived | San Francisco | Kailua/Kona | -17 | |
| Sep 8, 2026Arrived | San Francisco | Kailua/Kona | 11 | |
| Sep 7, 2026Arrived | San Francisco | Kailua/Kona | -7 | |
| Sep 6, 2026Arrived | San Francisco | Kailua/Kona | -12 | |
| Sep 5, 2026Arrived | San Francisco | Kailua/Kona | -26 | |
| Sep 4, 2026Arrived | San Francisco | Kailua/Kona | -12 |