Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: airlines and hours on this route all land within a few points of 85% on time.

Nonstops


United	KOA	SFO	5h 10m	88%	1.1%	919	Flying now
Alaska	KOA	SFO	5h 10m	71%	0.4%	231	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach San Francisco on time. Total trip = scheduled departure to arrival, layover included (San Francisco is 3 h ahead of Kailua/Kona). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	KOA 21:37 → LAX 06:00DL 486	1h 00m Los Angeles	LAX 07:00 → SFO 08:23 +1DL 1421	7h 46m	90%	79%
Alaska Details →	KOA 19:15 → HNL 20:03AS 1167	3h 23m Honolulu	HNL 23:26 → SFO 07:31 +1AS 842	9h 16m	100%	75%
Alaska Details →	KOA 08:31 → HNL 09:19AS 1027	3h 01m Honolulu	HNL 12:20 → SFO 20:28AS 812	8h 57m	100%	64%
United Details →	KOA 22:15 → LAX 06:32UA 1719	2h 38m Los Angeles	LAX 09:10 → SFO 10:45 +1UA 520	9h 30m	98%	63%
Delta Details →	KOA 20:50 → SEA 05:49DL 485	3h 56m Seattle	SEA 09:45 → SFO 12:08 +1DL 1412	12h 18m	100%	61%
United Details →	KOA 20:00 → DEN 06:49UA 1759	51m Denver	DEN 07:40 → SFO 09:18 +1UA 2391	10h 18m	87%	60%
Alaska Details →	KOA 11:58 → PDX 20:35AS 253	1h 10m Portland	PDX 21:45 → SFO 23:36AS 2112 · flown by Horizon	8h 38m	89%	56%
Alaska Details →	KOA 08:03 → SEA 16:55AS 513	3h 47m Seattle	SEA 20:42 → SFO 22:55AS 590	11h 52m	100%	56%

Same layover, different day-part

How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.

Morning

LAX · 58m · leaves 22:15 5%

DEN · 51m · leaves 20:00 13%

SEA · 51m · leaves 21:19 15%

Afternoon and evening

PDX · 1h 10m · leaves 11:58 11%

Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.

Mixing airlines

One ticketMiss it and the airline rebooks you; bags go through. 45 min is enough.

Separate ticketsMiss it and you buy a new ticket. Re-check bags, clear security again: we require 90 min.


Southwest WN 2167 KOA 08:05 → HNL United UA 1572 HNL 11:16 → SFO Connection details →	2h 21m	8h 20m	98%	93%
Alaska AS 1167 KOA 19:15 → HNL United UA 1176 HNL 23:01 → SFO Connection details →	2h 58m	8h 50m	100%	91%
Alaska AS 1157 KOA 18:30 → HNL United UA 1346 HNL 22:10 → SFO Connection details →	2h 53m	8h 39m	97%	89%

Rank all connections, any airlines →

Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.

How these are worked out. Makes the connection: share of the last year’s flights where the first flight arrived with at least 45 minutes to spare (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled and arriving within 15 minutes. Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.

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