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

The best bet has a stop: Southwest via Honolulu (7h 30m) reaches San Diego on time 95% of the time, against 75% on the nonstop.

Nonstops (seasonal or thin)


Alaska	KOA	SAN	5h 26m	75%	0.5%	364	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Southwest Details →	KOA 06:05 → HNL 06:55WN 2166	1h 15m Honolulu	HNL 08:10 → SAN 16:35WN 1938	7h 30m	100%	95%
Alaska + Southwesttwo ticketsDetails →	KOA 17:02 → HNL 17:49AS 1137	3h 36m Honolulu	HNL 21:25 → SAN 05:50 +1WN 512	9h 48m	98%	91%
Southwest Details →	KOA 20:25 → LAS 05:05WN 2171	1h 00m Las Vegas	LAS 06:05 → SAN 07:15 +1WN 4342	7h 50m	100%	88%
Alaska + Deltatwo ticketsDetails →	KOA 11:15 → LAX 19:32AS 920	3h 08m Los Angeles	LAX 22:40 → SAN 23:40DL 3746 · flown by SkyWest	9h 25m	100%	86%
Delta Details →	KOA 20:50 → SEA 05:49DL 485	1h 26m Seattle	SEA 07:15 → SAN 10:08 +1DL 2508	10h 18m	98%	86%
Delta + Unitedtwo ticketsDetails →	KOA 21:37 → LAX 06:00DL 486	3h 00m Los Angeles	LAX 09:00 → SAN 10:08 +1UA 4643 · flown by SkyWest	9h 31m	99%	84%
Alaska Details →	KOA 08:00 → LIH 08:55AS 1029	1h 51m Lihue	LIH 10:46 → SAN 19:24AS 228	8h 24m	100%	84%
Alaska + Deltatwo ticketsDetails →	KOA 21:19 → SEA 06:12AS 259	3h 33m Seattle	SEA 09:45 → SAN 12:38 +1DL 2533	12h 19m	100%	80%
Tight connection: often missed
Alaska Details →	KOA 10:51 → HNL 11:40AS 1057	59m Honolulu	HNL 12:39 → SAN 21:07AS 816	7h 16m	73%	48%

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

HNL · 1h 15m · leaves 06:05 0%

LAS · 1h 00m · leaves 20:25 0%

SFO · 1h 15m · leaves 22:50 1%

Afternoon and evening

SEA · 58m · leaves 08:03 7%

SFO · 57m · leaves 11:55 22%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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