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 → BNA flights land within a few points of 9 in 10 on time whatever the hour.

Nonstops (seasonal or thin)


Southwest	LGB	BNA	3h 50m	89%	0.3%	365	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Nashville on time. Total trip = scheduled departure to arrival, layover included (Nashville is 2 h ahead of Long Beach). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	LGB 07:00 → SJC 08:10WN 2497	1h 22m San Jose	SJC 09:32 → BNA 15:48WN 3657	6h 47m	100%	84%
Southwest Details →	LGB 18:15 → LAS 19:25WN 2485	4h 00m Las Vegas	LAS 23:25 → BNA 05:00 +1WN 2191	8h 45m	100%	81%
Delta Details →	LGB 13:00 → SLC 15:51DL 1116	2h 54m Salt Lake City	SLC 18:45 → BNA 23:05DL 2317	8h 07m	98%	79%
Delta Details →	LGB 07:00 → SLC 09:53DL 3135	3h 52m Salt Lake City	SLC 13:45 → BNA 18:13DL 2205	9h 13m	98%	78%
Southwest Details →	LGB 19:22 → SMF 20:48WN 2507	2h 17m Sacramento	SMF 23:05 → BNA 05:10 +1WN 3759	7h 48m	98%	76%
Southwest Details →	LGB 06:50 → LAS 08:05WN 2484	3h 35m Las Vegas	LAS 11:40 → BNA 17:20WN 2189	8h 30m	100%	67%
Southwest Details →	LGB 07:50 → PHX 09:10WN 2491	3h 35m Phoenix	PHX 12:45 → BNA 18:00WN 3237	8h 10m	100%	64%
Southwest Details →	LGB 08:15 → MDW 14:05WN 4542	3h 00m Chicago	MDW 17:05 → BNA 18:35WN 2199	8h 20m	100%	62%

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

PHX · 1h 20m · leaves 10:05 9%

Afternoon and evening

PHX · 1h 20m · leaves 16:15 19%

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 2501 LGB 08:00 → SLC Delta DL 2205 SLC 13:45 → BNA Connection details →	3h 00m	8h 13m	100%	85%
Southwest WN 2411 LGB 13:05 → SLC Delta DL 2317 SLC 18:45 → BNA Connection details →	2h 55m	8h 02m	100%	82%
Southwest WN 4574 LGB 07:55 → DEN United UA 1109 DEN 13:50 → BNA Connection details →	2h 40m	7h 39m	100%	72%

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