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

No clear winner: airlines and hours on this route all land within a few points of 84% on time.

Nonstops


Alaska	SEA	PSP	2h 52m	84%	0.9%	1,518	Flying now
Delta	SEA	PSP	2h 51m	85%	2.2%	179	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	SEA 05:30 → SLC 08:30DL 1128	2h 15m Salt Lake City	SLC 10:45 → PSP 11:43DL 4042 · flown by SkyWest	6h 13m	98%	96%
Southwest Details →	SEA 05:00 → SMF 06:50WN 3629	1h 00m Sacramento	SMF 07:50 → PSP 09:20WN 2189	4h 20m	98%	93%
Delta Details →	SEA 13:30 → SLC 16:40DL 1120	4h 00m Salt Lake City	SLC 20:40 → PSP 21:31DL 4045 · flown by SkyWest	8h 01m	99%	92%
United Details →	SEA 17:04 → LAX 19:53UA 1730	1h 33m Los Angeles	LAX 21:26 → PSP 22:30UA 5461 · flown by SkyWest	5h 26m	94%	92%
Delta Details →	SEA 09:30 → SLC 12:38DL 1016	2h 57m Salt Lake City	SLC 15:35 → PSP 16:29DL 3852 · flown by SkyWest	6h 59m	99%	87%
American Details →	SEA 06:16 → PHX 09:18AA 3792 · flown by Envoy	1h 22m Phoenix	PHX 10:40 → PSP 11:50AA 2330	5h 34m	97%	86%
Southwest Details →	SEA 07:30 → LAS 10:05WN 2175	2h 30m Las Vegas	LAS 12:35 → PSP 13:40WN 2422	6h 10m	100%	81%
United Details →	SEA 13:30 → SFO 15:48UA 737	2h 50m San Francisco	SFO 18:38 → PSP 20:26UA 5705 · flown by SkyWest	6h 56m	96%	78%
Tight connection: often missed
American Details →	SEA 11:07 → PHX 14:10AA 3793 · flown by Envoy	55m Phoenix	PHX 15:05 → PSP 16:10AA 2929	5h 03m	73%	62%
United Details →	SEA 15:33 → SFO 17:47UA 2866	51m San Francisco	SFO 18:38 → PSP 20:26UA 5705 · flown by SkyWest	4h 53m	45%	37%
United Details →	SEA 08:45 → SFO 11:03UA 2831	1h 09m San Francisco	SFO 12:12 → PSP 13:56UA 5212 · flown by SkyWest	5h 11m	44%	23%

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

SMF · 1h 00m · leaves 05:00 2%

PHX · 47m · leaves 06:16 16%

SFO · 1h 09m · leaves 08:45 56%

Afternoon and evening

SFO · 51m · leaves 15:33 55%

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 2830 SEA 14:55 → LAX United UA 5461 LAX 21:26 → PSP Connection details →	3h 46m	7h 35m	99%	95%
Alaska AS 360 SEA 08:48 → SLC Delta DL 3852 SLC 15:35 → PSP Connection details →	3h 40m	7h 41m	100%	88%
Alaska AS 368 SEA 14:45 → SLC Delta DL 4045 SLC 20:40 → PSP Connection details →	2h 52m	6h 46m	95%	88%

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