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

Connect in the morning. The same one-hour layover misses 7% of the time at 7 am and 1 time in 3 at 8 pm.

Nonstops (seasonal or thin)


Alaska	KOA	PDX	5h 37m	81%	0.0%	365	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	KOA 22:50 → SFO 07:00UA 1724	1h 22m San Francisco	SFO 08:22 → PDX 10:20 +1UA 2265	8h 30m	100%	90%
Alaska Details →	KOA 21:19 → SEA 06:12AS 259	2h 33m Seattle	SEA 08:45 → PDX 09:49 +1AS 3132 · flown by SkyWest	9h 30m	100%	90%
Delta Details →	KOA 20:50 → SEA 05:49DL 485	1h 41m Seattle	SEA 07:30 → PDX 08:39 +1DL 3953 · flown by SkyWest	8h 49m	98%	90%
Alaska Details →	KOA 11:15 → LAX 19:32AS 920	2h 03m Los Angeles	LAX 21:35 → PDX 23:56AS 207	9h 41m	100%	87%
Alaska Details →	KOA 08:00 → LIH 08:55AS 1029	3h 28m Lihue	LIH 12:23 → PDX 20:48AS 884	9h 48m	100%	87%
Delta Details →	KOA 21:37 → LAX 06:00DL 486	4h 00m Los Angeles	LAX 10:00 → PDX 12:25 +1DL 2766	11h 48m	100%	86%
Alaska Details →	KOA 06:00 → HNL 06:47AS 1017	58m Honolulu	HNL 07:45 → PDX 16:17AS 840	7h 17m	93%	86%
United Details →	KOA 07:00 → SFO 15:10UA 1321	3h 46m San Francisco	SFO 18:56 → PDX 20:54UA 2262	10h 54m	100%	82%
Tight connection: often missed
United Details →	KOA 11:55 → SFO 20:03UA 1722	47m San Francisco	SFO 20:50 → PDX 22:48UA 2413	7h 53m	66%	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

OGG · 1h 06m · leaves 09:19 6%

DEN · 1h 16m · leaves 20:00 6%

HNL · 58m · leaves 06:00 7%

Afternoon and evening

SEA · 1h 15m · leaves 13:18 8%

SFO · 47m · leaves 11:55 34%

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 2171 KOA 20:25 → LAS Alaska AS 1629 LAS 07:00 → PDX Connection details →	1h 55m	9h 52m	100%	96%
Delta DL 486 KOA 21:37 → LAX Frontier F9 4499 LAX 09:18 → PDX Connection details →	3h 18m	11h 04m	99%	92%
Delta DL 485 KOA 20:50 → SEA Alaska AS 3132 SEA 08:45 → PDX Connection details →	2h 56m	9h 59m	99%	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