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

Nonstops (seasonal or thin)


Southwest	SJC	BNA	4h 15m	87%	0.0%	246	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 San Jose). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	SJC 22:00 → ATL 05:34DL 2136	1h 56m Atlanta	ATL 07:30 → BNA 07:38 +1DL 2250	7h 38m	98%	89%
Southwest Details →	SJC 17:45 → SAN 19:10WN 3526	3h 30m San Diego	SAN 22:40 → BNA 04:45 +1WN 3480	9h 00m	92%	86%
Southwest Details →	SJC 18:50 → LAS 20:20WN 2335	3h 05m Las Vegas	LAS 23:25 → BNA 05:00 +1WN 2191	8h 10m	100%	82%
Delta Details →	SJC 14:59 → LAX 16:27DL 3842 · flown by SkyWest	2h 04m Los Angeles	LAX 18:31 → BNA 00:33 +1DL 858	7h 34m	98%	81%
Southwest Details →	SJC 06:22 → LGB 07:42WN 4933	2h 48m Long Beach	LGB 10:30 → BNA 16:30WN 165	8h 08m	100%	81%
Delta Details →	SJC 11:29 → SEA 13:59DL 3736 · flown by SkyWest	3h 31m Seattle	SEA 17:30 → BNA 23:59DL 815	10h 30m	100%	81%
Delta Details →	SJC 06:20 → MSP 12:02DL 2156	53m Minneapolis	MSP 12:55 → BNA 15:00DL 2843	6h 40m	92%	80%
Delta Details →	SJC 13:40 → SLC 16:33DL 1254	2h 12m Salt Lake City	SLC 18:45 → BNA 23:05DL 2317	7h 27m	98%	80%
Tight connection: often missed
American Details →	SJC 11:47 → DFW 17:30AA 2572	48m Dallas-Fort Worth	DFW 18:18 → BNA 20:17AA 1076	6h 30m	67%	40%
Southwest Details →	SJC 16:05 → PHX 18:00WN 3266	55m Phoenix	PHX 18:55 → BNA 00:45 +1WN 4507	6h 05m	35%	10%
Southwest Details →	SJC 11:40 → DAL 17:05WN 965	50m Dallas	DAL 17:55 → BNA 19:45WN 277	6h 05m	19%	7%

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 00m · leaves 09:10 5%

LAX · 55m · leaves 09:55 7%

PDX · 46m · leaves 08:00 9%

Afternoon and evening

DFW · 48m · leaves 11:47 33%

LAX · 1h 15m · leaves 20:20 39%

PHX · 55m · leaves 16:05 65%

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.


Delta DL 3883 SJC 20:19 → LAX American AA 2149 LAX 23:59 → BNA Connection details →	2h 04m	7h 49m	96%	86%
Delta DL 3736 SJC 11:29 → SEA Alaska AS 416 SEA 17:31 → BNA Connection details →	3h 32m	10h 30m	98%	81%
Southwest WN 3693 SJC 06:30 → PDX Alaska AS 1376 PDX 10:30 → BNA Connection details →	2h 12m	8h 30m	100%	80%

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