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1,150 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

United is clearly ahead here: 88% of its flights arrive on time, 17 points better than Alaska.

Best time to leave 7–8 am 100% arrive on time from KOA
Best single flight UA 1724 KOA 22:50 → SFO 07:00 · 97% on time Avoid UA 1722 KOA 11:55 → SFO 20:03 · 81% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
KOA
99
82
93
82
81
77
71
90
99
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
United 919 88% 1.1% 71 min
Alaska 231 71% 0.4% 62 min

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
UA 1724 KOA 22:50 SFO 07:00 97%
UA 693 KOA 13:52 SFO 21:57 82%
UA 1722 KOA 11:55 SFO 20:03 81%
All 6 flights on this route →

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
United KOA SFO 5h 10m 88% 1.1% 919 Flying now
Alaska KOA SFO 5h 10m 71% 0.4% 231 Flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON