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 3 in 4 on time.

Nonstops


Southwest	SAN	OAK	1h 40m	75%	1.0%	2,903	Flying now
Alaska	SAN	OAK	1h 39m	70%	2.3%	400	Flying now
Spirit	SAN	OAK	1h 37m	89%few flights	0.0%	38	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	SAN 17:01 → SLC 20:00DL 1210	2h 50m Salt Lake City	SLC 22:50 → OAK 23:50DL 3797 · flown by SkyWest	6h 50m	99%	93%
Alaska Details →	SAN 11:04 → PDX 13:43AS 576	1h 25m Portland	PDX 15:08 → OAK 16:55AS 2035 · flown by Horizon	5h 51m	94%	92%
Delta Details →	SAN 06:15 → SLC 09:22DL 1117	1h 23m Salt Lake City	SLC 10:45 → OAK 11:53DL 4134 · flown by SkyWest	5h 38m	98%	89%
Delta Details →	SAN 09:47 → SLC 12:50DL 1177	2h 30m Salt Lake City	SLC 15:20 → OAK 16:23DL 3903 · flown by SkyWest	6h 36m	99%	89%
Alaska Details →	SAN 14:03 → PDX 16:36AS 1402	3h 18m Portland	PDX 19:54 → OAK 21:41AS 2036 · flown by Horizon	7h 38m	99%	88%
Southwest Details →	SAN 06:40 → PHX 08:10WN 3447	1h 30m Phoenix	PHX 09:40 → OAK 11:35WN 2680	4h 55m	94%	84%
Southwest Details →	SAN 06:35 → LAS 08:15WN 2970	2h 35m Las Vegas	LAS 10:50 → OAK 12:30WN 322	5h 55m	100%	76%
Alaska Details →	SAN 06:18 → SEA 09:19AS 1473	2h 22m Seattle	SEA 11:41 → OAK 13:59AS 1328	7h 41m	93%	68%
Tight connection: often missed
Southwest Details →	SAN 17:20 → DEN 20:40WN 4151	1h 30m Denver	DEN 22:10 → OAK 23:45WN 1650	6h 25m	73%	29%
Southwest Details →	SAN 13:20 → DEN 16:55WN 3496	1h 55m Denver	DEN 18:50 → OAK 20:25WN 1843	7h 05m	68%	20%
Southwest Details →	SAN 20:05 → LAS 21:30WN 1169	1h 15m Las Vegas	LAS 22:45 → OAK 00:18 +1WN 596	4h 12m	56%	19%

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 · 1h 15m · leaves 07:18 6%

DEN · 1h 20m · leaves 08:32 6%

Afternoon and evening

PDX · 57m · leaves 14:03 15%

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.


Alaska AS 3488 SAN 15:54 → SLC Delta DL 3797 SLC 22:50 → OAK Connection details →	3h 48m	7h 57m	99%	94%
Alaska AS 3122 SAN 08:55 → SLC Delta DL 3903 SLC 15:20 → OAK Connection details →	3h 11m	7h 28m	100%	91%
Delta DL 1117 SAN 06:15 → SLC Southwest WN 2951 SLC 13:00 → OAK Connection details →	3h 38m	7h 35m	99%	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