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 OAK → LGB flights land within a few points of 87% on time whatever the hour.

Nonstops


Southwest	OAK	LGB	1h 25m	87%	0.3%	1,597	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 →	OAK 07:35 → LAS 09:05WN 4348	2h 30m Las Vegas	LAS 11:35 → LGB 12:45WN 2260	5h 10m	100%	94%
Southwest Details →	OAK 05:10 → PHX 07:05WN 3066	1h 30m Phoenix	PHX 08:35 → LGB 09:55WN 165	4h 45m	98%	91%
Delta Details →	OAK 06:00 → SLC 08:55DL 4061 · flown by SkyWest	2h 10m Salt Lake City	SLC 11:05 → LGB 12:02DL 1116	6h 02m	98%	87%
Southwest Details →	OAK 05:00 → LAS 06:30WN 2325	1h 25m Las Vegas	LAS 07:55 → LGB 09:05WN 276	4h 05m	98%	84%
Southwest Details →	OAK 14:32 → LAS 16:08WN 577	3h 52m Las Vegas	LAS 20:00 → LGB 21:10WN 2031	6h 38m	96%	65%
Southwest Details →	OAK 08:20 → DEN 11:45WN 3042	2h 20m Denver	DEN 14:05 → LGB 15:35WN 4259	7h 10m	100%	51%
Southwest Details →	OAK 13:25 → DEN 16:50WN 3043	1h 25m Denver	DEN 18:15 → LGB 20:00WN 1037	6h 30m	77%	43%
Southwest Details →	OAK 09:00 → LAS 10:30WN 2374	4h 00m Las Vegas	LAS 14:30 → LGB 15:40WN 3061	6h 40m	100%	27%
Tight connection: often missed
Southwest Details →	OAK 16:20 → PHX 18:20WN 878	55m Phoenix	PHX 19:15 → LGB 20:30WN 4352	4h 10m	54%	31%

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 · 1h 05m · leaves 09:00 10%

Afternoon and evening

PHX · 55m · leaves 16:20 46%

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.


Southwest WN 4198 OAK 09:30 → SLC Delta DL 3793 SLC 15:05 → LGB Connection details →	2h 50m	6h 40m	100%	94%
Delta DL 4134 OAK 12:33 → SLC Southwest WN 4983 SLC 19:20 → LGB Connection details →	3h 51m	7h 42m	100%	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