Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

The nonstop is quickest: Southwest DAL → SJC (3h 40m), on time 2 times in 3. Southwest via Phoenix (5h 40m) is more reliable, 92%, but takes 2h 00m longer.

Nonstops (seasonal or thin)


Southwest	DAL	SJC	3h 40m	67%	1.6%	427	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach San Jose on time. Total trip = scheduled departure to arrival, layover included (San Jose is 2 h behind Dallas). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	DAL 06:00 → PHX 06:28WN 1379	3h 12m Phoenix	PHX 09:40 → SJC 11:35WN 3336	7h 35m	100%	93%
Southwest Details →	DAL 06:10 → SAN 07:05WN 1393	2h 25m San Diego	SAN 09:30 → SJC 11:00WN 4509	6h 50m	100%	93%
Southwest Details →	DAL 07:25 → LAS 08:10WN 2964	4h 00m Las Vegas	LAS 12:10 → SJC 13:45WN 1242	8h 20m	96%	87%
Southwest Details →	DAL 06:00 → LAX 07:10WN 1326	1h 50m Los Angeles	LAX 09:00 → SJC 10:15WN 2431	6h 15m	100%	86%
Southwest Details →	DAL 06:00 → MDW 08:15WN 1355	1h 50m Chicago	MDW 10:05 → SJC 12:30WN 3752	8h 30m	100%	82%
Southwest Details →	DAL 08:45 → LAS 09:35WN 695	3h 10m Las Vegas	LAS 12:45 → SJC 14:20WN 4223	7h 35m	100%	81%
Southwest Details →	DAL 10:25 → PHX 10:55WN 1166	3h 00m Phoenix	PHX 13:55 → SJC 15:42WN 4102	7h 18m	100%	81%
Southwest Details →	DAL 06:05 → LAS 06:50WN 1318	3h 05m Las Vegas	LAS 09:55 → SJC 11:30WN 439	7h 25m	100%	78%
Tight connection: often missed
Southwest Details →	DAL 16:25 → SNA 17:30WN 4300	55m Santa Ana	SNA 18:25 → SJC 19:40WN 342	5h 15m	64%	47%
Southwest Details →	DAL 19:10 → DEN 20:30WN 1304	50m Denver	DEN 21:20 → SJC 22:55WN 1728	5h 45m	47%	17%
Southwest Details →	DAL 12:25 → BNA 14:15WN 1275	50m Nashville	BNA 15:05 → SJC 17:40WN 674	7h 15m	44%	16%

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

SAN · 1h 05m · leaves 06:10 5%

DEN · 50m · leaves 06:00 14%

LAS · 1h 20m · leaves 10:40 21%

Afternoon and evening

SNA · 55m · leaves 16:25 36%

DEN · 50m · leaves 19:10 53%

LAS · 1h 00m · leaves 19:10 59%

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 1408 DAL 07:00 → SLC Delta DL 1254 SLC 11:40 → SJC Connection details →	3h 00m	7h 38m	100%	90%
Southwest WN 1326 DAL 06:00 → LAX Delta DL 2965 LAX 09:22 → SJC Connection details →	2h 12m	6h 43m	100%	89%
Southwest WN 1327 DAL 11:10 → LAX Delta DL 3822 LAX 14:32 → SJC Connection details →	2h 12m	6h 36m	92%	87%

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