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).

KOA

% 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

San Francisco flights leaving KOA 3–4 pm: 2Close ×


AS 404	KOA 15:40	SFO 23:48	5h 08m	52	69%	0.0%	80 min
AS 40	KOA 15:46	SFO 23:56	5h 10m	48	73%	0.0%	37 min

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