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 PDX → PSC flights land within a few points of 84% on time whatever the hour.

Nonstops (seasonal or thin)


Alaska	PDX	PSC	54m	84%	1.0%	104	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	PDX 05:15 → SFO 07:01UA 1896	2h 14m San Francisco	SFO 09:15 → PSC 11:27UA 4717 · flown by SkyWest	6h 12m	99%	99%
Alaska Details →	PDX 05:00 → SEA 05:53AS 2431 · flown by Horizon	2h 59m Seattle	SEA 08:52 → PSC 09:53AS 2195 · flown by Horizon	4h 53m	100%	89%
Delta Details →	PDX 05:30 → SEA 06:41DL 4008 · flown by SkyWest	3h 54m Seattle	SEA 10:35 → PSC 11:48DL 3992 · flown by SkyWest	6h 18m	99%	85%
Delta Details →	PDX 09:45 → SLC 12:35DL 1203	3h 16m Salt Lake City	SLC 15:51 → PSC 16:41DL 3728 · flown by SkyWest	6h 56m	100%	85%
Delta Details →	PDX 17:24 → SLC 20:19DL 1244	2h 56m Salt Lake City	SLC 23:15 → PSC 23:54DL 1712	6h 34m	100%	83%
Delta Details →	PDX 17:50 → SEA 19:05DL 3918 · flown by SkyWest	3h 45m Seattle	SEA 22:50 → PSC 23:59DL 4017 · flown by SkyWest	6h 09m	100%	82%
Delta Details →	PDX 09:30 → SEA 10:55DL 3953 · flown by SkyWest	2h 35m Seattle	SEA 13:30 → PSC 14:45DL 3891 · flown by SkyWest	5h 15m	99%	82%
Alaska Details →	PDX 13:48 → SEA 14:43AS 2205 · flown by Horizon	1h 45m Seattle	SEA 16:28 → PSC 17:27AS 2367 · flown by Horizon	3h 39m	100%	81%
Tight connection: often missed
Alaska Details →	PDX 09:19 → SEA 10:21AS 427	59m Seattle	SEA 11:20 → PSC 12:19AS 2306 · flown by Horizon	3h 00m	47%	26%

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

SEA · 59m · leaves 09:19 53%

Afternoon and evening

SLC · 1h 02m · leaves 19:20 9%

SEA · 54m · leaves 20:44 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.


Delta DL 3918 PDX 17:50 → SEA Alaska AS 2164 SEA 22:40 → PSC Connection details →	3h 35m	5h 49m	98%	89%
Delta DL 4008 PDX 05:30 → SEA Alaska AS 2195 SEA 08:52 → PSC Connection details →	2h 11m	4h 23m	96%	86%
Alaska AS 499 PDX 06:19 → SEA Delta DL 3992 SEA 10:35 → PSC Connection details →	3h 18m	5h 29m	100%	85%

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