Sun, Oct 4 has passed, so this is the 12-month record.

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

No clear winner: United’s SFO → PSC flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops (seasonal or thin)


United	SFO	PSC	2h 10m	81%	0.2%	594	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.


Alaska Details →	SFO 17:38 → SEA 19:47AS 758	2h 53m Seattle	SEA 22:40 → PSC 23:39AS 2164 · flown by Horizon	6h 01m	98%	89%
Delta Details →	SFO 05:50 → SLC 08:42DL 1331	3h 41m Salt Lake City	SLC 12:23 → PSC 13:09DL 3892 · flown by SkyWest	7h 21m	99%	88%
Delta Details →	SFO 09:55 → SLC 12:44DL 920	3h 07m Salt Lake City	SLC 15:51 → PSC 16:41DL 3728 · flown by SkyWest	6h 46m	98%	84%
Delta Details →	SFO 05:55 → SEA 08:11DL 2721	2h 24m Seattle	SEA 10:35 → PSC 11:48DL 3992 · flown by SkyWest	5h 53m	99%	84%
Delta Details →	SFO 17:30 → SEA 19:50DL 3707 · flown by SkyWest	3h 00m Seattle	SEA 22:50 → PSC 23:59DL 4017 · flown by SkyWest	6h 29m	99%	81%
Delta Details →	SFO 17:07 → SLC 20:02DL 1088	3h 13m Salt Lake City	SLC 23:15 → PSC 23:54DL 1712	6h 51m	97%	81%
United Details →	SFO 05:00 → DEN 08:35UA 1479	2h 40m Denver	DEN 11:15 → PSC 12:54UA 5298 · flown by SkyWest	7h 54m	99%	80%
Alaska Details →	SFO 16:30 → LAX 18:06AS 1523	1h 39m Los Angeles	LAX 19:45 → PSC 22:17AS 3303 · flown by SkyWest	5h 47m	92%	79%
Tight connection: often missed
Delta Details →	SFO 19:24 → SLC 22:14DL 2652	1h 01m Salt Lake City	SLC 23:15 → PSC 23:54DL 1712	4h 34m	70%	59%

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

PDX · 1h 19m · leaves 18:46 8%

DEN · 1h 13m · leaves 14:20 19%

SLC · 1h 01m · leaves 19:24 30%

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.


United UA 2279 SFO 16:27 → SEA Alaska AS 2164 SEA 22:40 → PSC Connection details →	3h 53m	7h 12m	97%	88%
Alaska AS 620 SFO 06:03 → SEA Delta DL 3992 SEA 10:35 → PSC Connection details →	2h 22m	5h 45m	98%	84%
Delta DL 2725 SFO 14:30 → LAX Alaska AS 3303 LAX 19:45 → PSC Connection details →	3h 49m	7h 47m	98%	83%

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