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 9 in 10 on time.

Nonstops


Delta	LGB	SLC	2h 00m	91%	0.6%	1,089	Flying now
Southwest	LGB	SLC	1h 50m	87%	0.2%	478	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Salt Lake City on time. Total trip = scheduled departure to arrival, layover included (Salt Lake City is 1 h ahead of Long Beach). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	LGB 07:05 → OAK 08:25WN 4947	1h 05m Oakland	OAK 09:30 → SLC 12:15WN 4198	4h 10m	100%	80%
Southwest Details →	LGB 18:15 → LAS 19:25WN 2485	2h 15m Las Vegas	LAS 21:40 → SLC 00:10 +1WN 4161	4h 50m	100%	76%
Southwest Details →	LGB 10:10 → LAS 11:20WN 2234	2h 28m Las Vegas	LAS 13:48 → SLC 16:15WN 3310	5h 08m	100%	70%
Southwest Details →	LGB 07:50 → PHX 09:10WN 2491	2h 30m Phoenix	PHX 11:40 → SLC 14:10WN 147	5h 20m	98%	64%
Southwest Details →	LGB 09:45 → DEN 13:00WN 4238	3h 50m Denver	DEN 16:50 → SLC 18:35WN 1733	7h 50m	100%	63%
Southwest Details →	LGB 13:30 → SMF 14:55WN 2505	3h 40m Sacramento	SMF 18:35 → SLC 21:20WN 3828	6h 45m	100%	62%
Southwest Details →	LGB 16:15 → PHX 17:35WN 2493	3h 55m Phoenix	PHX 21:30 → SLC 00:10 +1WN 4792	6h 50m	98%	57%
Southwest Details →	LGB 07:55 → DEN 11:10WN 4574	1h 55m Denver	DEN 13:05 → SLC 14:35WN 1732	5h 40m	100%	50%

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

OAK · 1h 05m · leaves 07:05 0%

Afternoon and evening

PHX · 1h 00m · leaves 20:15 21%

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 2497 LGB 07:00 → SJC Delta DL 4026 SJC 09:45 → SLC Connection details →	1h 35m	4h 48m	100%	95%
Southwest WN 4973 LGB 12:00 → SJC Delta DL 1260 SJC 17:01 → SLC Connection details →	3h 51m	6h 57m	100%	94%
Southwest WN 2488 LGB 11:55 → OAK Delta DL 3903 OAK 17:05 → SLC Connection details →	3h 55m	7h 07m	100%	92%

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