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 88% on time.

Nonstops


Alaska	SFO	KOA	5h 34m	92%	0.0%	231	Flying now
United	SFO	KOA	5h 37m	87%	0.3%	920	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	SFO 05:00 → LAS 06:35WN 4231	2h 55m Las Vegas	LAS 09:30 → KOA 12:45WN 4452	10h 45m	100%	88%
United Details →	SFO 12:15 → LAX 13:55UA 1506	3h 15m Los Angeles	LAX 17:10 → KOA 19:47UA 1718	10h 32m	99%	87%
United Details →	SFO 06:00 → LAX 07:39UA 2127	1h 21m Los Angeles	LAX 09:00 → KOA 11:42UA 2373	8h 42m	96%	86%
United Details →	SFO 05:00 → DEN 08:35UA 1479	3h 40m Denver	DEN 12:15 → KOA 15:37UA 1758	13h 37m	99%	84%
American Details →	SFO 05:50 → PHX 08:01AA 6404 · flown by SkyWest	2h 39m Phoenix	PHX 10:40 → KOA 14:06AA 663	11h 16m	99%	83%
Alaska Details →	SFO 06:00 → SAN 07:44AS 3455 · flown by SkyWest	1h 28m San Diego	SAN 09:12 → KOA 12:15AS 222	9h 15m	85%	80%
American Details →	SFO 09:08 → LAX 10:48AA 6336 · flown by SkyWest	2h 36m Los Angeles	LAX 13:24 → KOA 16:05AA 59	9h 56m	100%	78%
Delta Details →	SFO 11:45 → LAX 13:17DL 1715	3h 27m Los Angeles	LAX 16:44 → KOA 19:17DL 311	10h 32m	98%	78%
Tight connection: often missed
Delta Details →	SFO 10:35 → SEA 12:53DL 2870	1h 37m Seattle	SEA 14:30 → KOA 17:35DL 340	10h 00m	74%	57%
Alaska Details →	SFO 15:50 → SEA 18:00AS 1340	59m Seattle	SEA 18:59 → KOA 22:10AS 200	9h 20m	68%	51%
Delta Details →	SFO 14:30 → LAX 15:56DL 2725	48m Los Angeles	LAX 16:44 → KOA 19:17DL 311	7h 47m	24%	19%

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

OGG · 1h 13m · leaves 09:23 6%

HNL · 1h 15m · leaves 08:30 15%

Afternoon and evening

SEA · 59m · leaves 15:50 32%

LAX · 48m · leaves 14:30 76%

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.


United UA 1260 SFO 12:00 → HNL Southwest WN 1911 HNL 17:15 → KOA Connection details →	2h 40m	9h 05m	99%	88%
United UA 2010 SFO 08:15 → OGG Southwest WN 3099 OGG 13:50 → KOA Connection details →	3h 05m	9h 15m	100%	86%
United UA 582 SFO 06:00 → LAS Southwest WN 4452 LAS 09:30 → KOA Connection details →	1h 44m	9h 45m	98%	86%

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