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 SJC → LGB flights land within a few points of 86% on time whatever the hour.

Nonstops


Southwest	SJC	LGB	1h 20m	86%	0.2%	1,239	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	SJC 07:40 → LAS 09:10WN 1277	2h 25m Las Vegas	LAS 11:35 → LGB 12:45WN 2260	5h 05m	100%	94%
Delta Details →	SJC 09:45 → SLC 12:48DL 4026 · flown by SkyWest	2h 17m Salt Lake City	SLC 15:05 → LGB 16:10DL 3793 · flown by SkyWest	6h 25m	98%	92%
Delta Details →	SJC 06:00 → SLC 08:55DL 1314	2h 10m Salt Lake City	SLC 11:05 → LGB 12:02DL 1116	6h 02m	98%	85%
Southwest Details →	SJC 06:25 → PHX 08:20WN 3186	3h 20m Phoenix	PHX 11:40 → LGB 12:55WN 2505	6h 30m	100%	84%
Southwest Details →	SJC 15:30 → LAS 17:00WN 2339	3h 00m Las Vegas	LAS 20:00 → LGB 21:10WN 2031	5h 40m	100%	68%
Southwest Details →	SJC 11:40 → PHX 13:35WN 3232	3h 05m Phoenix	PHX 16:40 → LGB 17:55WN 149	6h 15m	100%	56%
Southwest Details →	SJC 13:10 → DEN 16:35WN 3667	1h 40m Denver	DEN 18:15 → LGB 20:00WN 1037	6h 45m	100%	56%
Southwest Details →	SJC 13:40 → LAS 15:10WN 714	2h 55m Las Vegas	LAS 18:05 → LGB 19:15WN 1322	5h 35m	100%	35%
Tight connection: often missed
Southwest Details →	SJC 16:05 → PHX 18:00WN 3266	1h 15m Phoenix	PHX 19:15 → LGB 20:30WN 4352	4h 25m	65%	37%
Southwest Details →	SJC 15:30 → LAS 17:00WN 2339	1h 05m Las Vegas	LAS 18:05 → LGB 19:15WN 1322	3h 45m	64%	22%
Southwest Details →	SJC 15:35 → SLC 18:25WN 3538	55m Salt Lake City	SLC 19:20 → LGB 20:15WN 4983	4h 40m	38%	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

LAS · 55m · leaves 09:10 5%

Afternoon and evening

PHX · 1h 15m · leaves 16:05 35%

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.


American AA 1694 SJC 06:01 → PHX Southwest WN 2505 PHX 11:40 → LGB Connection details →	3h 35m	6h 54m	97%	80%
Southwest WN 3538 SJC 15:35 → SLC Delta DL 3124 SLC 20:33 → LGB Connection details →	2h 08m	5h 54m	73%	60%
Delta DL 1254 SJC 13:40 → SLC Southwest WN 4983 SLC 19:20 → LGB Connection details →	2h 47m	6h 35m	98%	53%

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