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

Nonstops (seasonal or thin)


Alaska	PSC	LAX	2h 40m	89%	0.8%	359	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	PSC 17:21 → SLC 20:10DL 3728 · flown by SkyWest	2h 35m Salt Lake City	SLC 22:45 → LAX 23:46DL 2014	6h 25m	100%	96%
Delta Details →	PSC 06:00 → SLC 08:38DL 1645	1h 02m Salt Lake City	SLC 09:40 → LAX 10:42DL 1095	4h 42m	96%	88%
United Details →	PSC 05:14 → DEN 08:36UA 1049	1h 26m Denver	DEN 10:02 → LAX 11:34UA 405	6h 20m	97%	86%
Delta Details →	PSC 05:25 → SEA 06:39DL 3972 · flown by SkyWest	3h 26m Seattle	SEA 10:05 → LAX 12:54DL 2769	7h 29m	97%	81%
Delta Details →	PSC 10:00 → SLC 12:47DL 3694 · flown by SkyWest	2h 53m Salt Lake City	SLC 15:40 → LAX 16:36DL 841	6h 38m	99%	79%
Alaska Details →	PSC 10:33 → SEA 11:38AS 2171 · flown by Horizon	2h 00m Seattle	SEA 13:38 → LAX 16:25AS 696	5h 52m	98%	79%
United Details →	PSC 13:35 → SFO 15:44UA 5578 · flown by SkyWest	3h 01m San Francisco	SFO 18:45 → LAX 20:29UA 1427	6h 54m	96%	79%
Delta Details →	PSC 15:25 → SEA 16:40DL 3891 · flown by SkyWest	3h 45m Seattle	SEA 20:25 → LAX 23:15DL 2854	7h 50m	100%	78%
Tight connection: often missed
Alaska Details →	PSC 10:33 → SEA 11:38AS 2171 · flown by Horizon	1h 00m Seattle	SEA 12:38 → LAX 15:25AS 502	4h 52m	67%	60%
Alaska Details →	PSC 15:59 → PDX 16:50AS 2471 · flown by Horizon	47m Portland	PDX 17:37 → LAX 20:09AS 278	4h 10m	44%	38%
United Details →	PSC 07:00 → SFO 09:06UA 6046 · flown by SkyWest	1h 13m San Francisco	SFO 10:19 → LAX 11:57UA 2367	4h 57m	27%	21%

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

SLC · 1h 02m · leaves 06:00 4%

SEA · 1h 00m · leaves 10:33 33%

SFO · 1h 13m · leaves 07:00 73%

Afternoon and evening

SEA · 50m · leaves 15:25 24%

PDX · 47m · leaves 15:59 56%

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 3694 PSC 10:00 → SLC United UA 5456 SLC 16:42 → LAX Connection details →	3h 55m	7h 53m	99%	96%
Delta DL 1645 PSC 06:00 → SLC Southwest WN 3746 SLC 11:20 → LAX Connection details →	2h 42m	6h 15m	97%	91%
Alaska AS 2306 PSC 12:56 → SEA United UA 1730 SEA 17:04 → LAX Connection details →	3h 02m	6h 57m	98%	87%

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