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

No clear winner: Southwest’s LGB → SJC flights land within a few points of 88% on time whatever the hour.

Nonstops


Southwest	LGB	SJC	1h 15m	88%	0.2%	1,239	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	LGB 10:05 → PHX 11:25WN 2492	2h 30m Phoenix	PHX 13:55 → SJC 15:42WN 4102	5h 38m	98%	83%
Delta Details →	LGB 07:00 → SLC 09:53DL 3135	1h 47m Salt Lake City	SLC 11:40 → SJC 12:38DL 1254	5h 38m	96%	82%
Southwest Details →	LGB 10:10 → LAS 11:20WN 2234	1h 25m Las Vegas	LAS 12:45 → SJC 14:20WN 4223	4h 10m	97%	82%
Delta Details →	LGB 16:55 → SLC 19:56DL 3793 · flown by SkyWest	2h 49m Salt Lake City	SLC 22:45 → SJC 23:39DL 1272	6h 44m	98%	81%
Southwest Details →	LGB 06:50 → LAS 08:05WN 2484	1h 50m Las Vegas	LAS 09:55 → SJC 11:30WN 439	4h 40m	96%	73%
Delta Details →	LGB 13:00 → SLC 15:51DL 1116	1h 34m Salt Lake City	SLC 17:25 → SJC 18:30DL 3937 · flown by SkyWest	5h 30m	95%	72%
Southwest Details →	LGB 15:15 → LAS 16:25WN 2414	3h 45m Las Vegas	LAS 20:10 → SJC 21:40WN 2352	6h 25m	100%	69%
Southwest Details →	LGB 13:25 → LAS 14:35WN 2334	1h 30m Las Vegas	LAS 16:05 → SJC 17:40WN 2350	4h 10m	94%	63%
Tight connection: often missed
Southwest Details →	LGB 14:50 → DEN 18:05WN 2479	50m Denver	DEN 18:55 → SJC 20:25WN 1727	5h 37m	34%	10%

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.


Southwest WN 2484 LGB 06:50 → LAS Frontier F9 4103 LAS 11:39 → SJC Connection details →	3h 34m	6h 27m	96%	73%
Southwest WN 2493 LGB 16:15 → PHX American AA 1197 PHX 20:51 → SJC Connection details →	3h 16m	6h 26m	98%	60%
Delta DL 3135 LGB 07:00 → SLC Southwest WN 286 SLC 13:40 → SJC Connection details →	3h 47m	7h 35m	96%	56%

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