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

No clear winner: Alaska’s SAN → KOA flights land within a few points of 82% on time whatever the hour.

Nonstops (seasonal or thin)


Alaska	SAN	KOA	6h 05m	82%	0.3%	364	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 Diego). Layovers up to 4 hours. Pick a connection for the details.


United Details →	SAN 13:39 → SFO 15:19UA 1763	3h 49m San Francisco	SFO 19:08 → KOA 21:45UA 731	11h 06m	98%	89%
United Details →	SAN 06:20 → LAX 07:21UA 1006	1h 39m Los Angeles	LAX 09:00 → KOA 11:42UA 2373	8h 22m	97%	88%
Southwest Details →	SAN 06:35 → LAS 08:15WN 2970	1h 15m Las Vegas	LAS 09:30 → KOA 12:45WN 4452	9h 10m	98%	86%
United Details →	SAN 06:20 → SFO 08:04UA 2830	2h 06m San Francisco	SFO 10:10 → KOA 12:37UA 694	9h 17m	98%	85%
United Details →	SAN 06:35 → DEN 10:08UA 2368	2h 07m Denver	DEN 12:15 → KOA 15:37UA 1758	12h 02m	100%	83%
American Details →	SAN 06:20 → PHX 07:54AA 625	2h 46m Phoenix	PHX 10:40 → KOA 14:06AA 663	10h 46m	99%	83%
United Details →	SAN 11:55 → SFO 13:41UA 2428	3h 14m San Francisco	SFO 16:55 → KOA 19:31UA 1723	10h 36m	99%	82%
Southwest Details →	SAN 06:45 → SMF 08:35WN 3544	1h 25m Sacramento	SMF 10:00 → KOA 12:20WN 3783	8h 35m	97%	77%
Tight connection: often missed
United Details →	SAN 07:15 → SFO 09:01UA 2274	1h 09m San Francisco	SFO 10:10 → KOA 12:37UA 694	8h 22m	64%	55%
Alaska Details →	SAN 09:07 → HNL 12:18AS 815	56m Honolulu	HNL 13:14 → KOA 14:02AS 1108	7h 55m	52%	36%

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

LAS · 1h 15m · leaves 06:35 2%

SEA · 1h 01m · leaves 07:18 15%

SFO · 1h 09m · leaves 07:15 36%

Afternoon and evening

SFO · 1h 19m · leaves 16:09 13%

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.


Alaska AS 3352 SAN 13:30 → SFO United UA 731 SFO 19:08 → KOA Connection details →	3h 54m	11h 15m	98%	88%
Southwest WN 3493 SAN 06:30 → DEN United UA 1758 DEN 12:15 → KOA Connection details →	2h 20m	12h 07m	98%	83%
Southwest WN 1677 SAN 11:15 → SFO United UA 1723 SFO 16:55 → KOA Connection details →	3h 55m	11h 16m	100%	83%

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