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 STS → PDX flights land within a few points of 9 in 10 on time whatever the hour.

Nonstops (seasonal or thin)


Alaska	STS	PDX	1h 43m	89%	2.8%	821	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Portland on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	STS 08:30 → SNA 10:12AS 3287 · flown by SkyWest	3h 53m Santa Ana	SNA 14:05 → PDX 16:29AS 712	7h 59m	98%	88%
Alaska Details →	STS 11:38 → LAX 13:18AS 3049 · flown by SkyWest	1h 09m Los Angeles	LAX 14:27 → PDX 16:47AS 1315	5h 09m	94%	86%
Alaska + Deltatwo ticketsDetails →	STS 06:00 → LAX 07:44AS 3050 · flown by SkyWest	2h 16m Los Angeles	LAX 10:00 → PDX 12:25DL 2766	6h 25m	98%	85%
Alaska Details →	STS 17:35 → LAX 19:15AS 3466 · flown by SkyWest	2h 20m Los Angeles	LAX 21:35 → PDX 23:56AS 207	6h 21m	96%	84%
Alaska Details →	STS 14:17 → BUR 15:45AS 3092 · flown by SkyWest	2h 25m Burbank	BUR 18:10 → PDX 20:25AS 649	6h 08m	98%	83%
Alaska Details →	STS 13:06 → LAS 14:44AS 2459 · flown by Horizon	3h 43m Las Vegas	LAS 18:27 → PDX 20:46AS 779	7h 40m	100%	82%
Southwest + Alaskatwo ticketsDetails →	STS 06:00 → SAN 07:40WN 4813	3h 24m San Diego	SAN 11:04 → PDX 13:43AS 576	7h 43m	95%	80%
Alaska + Deltatwo ticketsDetails →	STS 12:52 → SEA 14:55AS 1322	4h 00m Seattle	SEA 18:55 → PDX 20:02DL 3923 · flown by SkyWest	7h 10m	100%	79%
Tight connection: often missed
Alaska Details →	STS 11:04 → SAN 12:50AS 3047 · flown by SkyWest	1h 13m San Diego	SAN 14:03 → PDX 16:36AS 1402	5h 32m	71%	60%

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.

Afternoon and evening

SEA · 59m · leaves 19:23 25%

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