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 → AUS flights land within a few points of 3 in 4 on time whatever the hour.

Nonstops


Southwest	SJC	AUS	3h 20m	76%	0.3%	1,121	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Austin on time. Total trip = scheduled departure to arrival, layover included (Austin 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	2h 36m Atlanta	ATL 08:10 → AUS 09:30 +1DL 2976	9h 30m	98%	90%
Delta Details →	SJC 07:00 → LAX 08:27DL 1654	1h 38m Los Angeles	LAX 10:05 → AUS 15:20DL 986	6h 16m	98%	85%
Alaska Details →	SJC 14:31 → PDX 16:15AS 1633	1h 24m Portland	PDX 17:39 → AUS 23:49AS 1370	7h 18m	98%	84%
Southwest Details →	SJC 09:55 → LGB 11:15WN 4958	1h 20m Long Beach	LGB 12:35 → AUS 17:30WN 2476	5h 35m	100%	83%
United Details →	SJC 08:45 → DEN 12:23UA 586	1h 21m Denver	DEN 13:44 → AUS 16:58UA 2270	6h 13m	99%	82%
Southwest Details →	SJC 06:30 → BUR 07:40WN 4843	3h 20m Burbank	BUR 11:00 → AUS 16:00WN 771	7h 30m	100%	79%
Southwest Details →	SJC 08:12 → SNA 09:38WN 3708	2h 12m Santa Ana	SNA 11:50 → AUS 16:50WN 345	6h 38m	100%	79%
Delta Details →	SJC 12:46 → ATL 20:35DL 809	2h 24m Atlanta	ATL 22:59 → AUS 00:25 +1DL 1335	9h 39m	99%	79%
Tight connection: often missed
American Details →	SJC 12:39 → PHX 14:35AA 3325	50m Phoenix	PHX 15:25 → AUS 19:43AA 2892	5h 04m	74%	51%
Alaska Details →	SJC 08:20 → SEA 10:31AS 1426	1h 15m Seattle	SEA 11:46 → AUS 18:04AS 604	7h 44m	67%	51%
Southwest Details →	SJC 12:30 → SAN 13:55WN 4811	55m San Diego	SAN 14:50 → AUS 19:45WN 2328	5h 15m	27%	2%

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

LGB · 1h 20m · leaves 09:55 0%

LAS · 1h 05m · leaves 06:00 0%

SEA · 1h 15m · leaves 07:20 3%

Afternoon and evening

IAH · 1h 13m · leaves 13:10 17%

SAN · 59m · leaves 15:15 33%

LAS · 55m · leaves 17:00 48%

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 3842 SJC 14:59 → LAX United UA 5456 LAX 18:45 → AUS Connection details →	2h 18m	7h 00m	97%	88%
Southwest WN 3693 SJC 06:30 → PDX Alaska AS 540 PDX 10:30 → AUS Connection details →	2h 12m	8h 08m	100%	86%
United UA 586 SJC 08:45 → DEN Frontier F9 1816 DEN 15:50 → AUS Connection details →	3h 27m	8h 21m	99%	79%

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