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

No clear winner: American’s PHX → KOA flights land within a few points of 83% on time whatever the hour.

Nonstops (seasonal or thin)


American	PHX	KOA	6h 28m	83%	0.3%	384	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 Phoenix). Layovers up to 4 hours. Pick a connection for the details.


United Details →	PHX 13:16 → SFO 15:19UA 1427	3h 49m San Francisco	SFO 19:08 → KOA 21:45UA 731	11h 29m	100%	90%
United Details →	PHX 06:00 → LAX 07:37UA 5849 · flown by SkyWest	1h 23m Los Angeles	LAX 09:00 → KOA 11:42UA 2373	8h 42m	98%	89%
Southwest Details →	PHX 06:40 → LAS 07:50WN 3039	1h 40m Las Vegas	LAS 09:30 → KOA 12:45WN 4452	9h 05m	100%	86%
United Details →	PHX 06:00 → DEN 08:52UA 337	3h 23m Denver	DEN 12:15 → KOA 15:37UA 1758	12h 37m	99%	84%
United Details →	PHX 11:12 → SFO 13:15UA 2619	3h 40m San Francisco	SFO 16:55 → KOA 19:31UA 1723	11h 19m	99%	80%
Southwest Details →	PHX 09:20 → OGG 12:40WN 2138	1h 10m Kahului	OGG 13:50 → KOA 14:30WN 3099	8h 10m	93%	80%
Southwest Details →	PHX 05:20 → SMF 07:15WN 3343	2h 45m Sacramento	SMF 10:00 → KOA 12:20WN 3783	10h 00m	100%	80%
Delta Details →	PHX 12:15 → LAX 13:46DL 3951 · flown by SkyWest	2h 58m Los Angeles	LAX 16:44 → KOA 19:17DL 311	10h 02m	98%	79%
Tight connection: often missed
American Details →	PHX 10:36 → LAX 12:06AA 2869	1h 18m Los Angeles	LAX 13:24 → KOA 16:05AA 59	8h 28m	72%	57%

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 · 50m · leaves 07:30 14%

SEA · 58m · leaves 07:20 17%

Afternoon and evening

SEA · 1h 16m · leaves 14:37 15%

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.


Delta DL 3951 PHX 12:15 → LAX United UA 1718 LAX 17:10 → KOA Connection details →	3h 24m	10h 32m	98%	86%
Southwest WN 1706 PHX 06:15 → DEN United UA 1758 DEN 12:15 → KOA Connection details →	3h 15m	12h 22m	100%	85%
American AA 675 PHX 10:48 → HNL Southwest WN 1911 HNL 17:15 → KOA Connection details →	2h 48m	10h 17m	91%	82%

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