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

Nonstops (seasonal or thin)


Southwest	SJC	HOU	3h 40m	90%	0.3%	365	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Southwest Details →	SJC 22:55 → MDW 05:00WN 3886	1h 40m Chicago	MDW 06:40 → HOU 09:15 +1WN 4497	8h 20m	100%	88%
Southwest Details →	SJC 06:22 → LGB 07:42WN 4933	1h 08m Long Beach	LGB 08:50 → HOU 14:05WN 2483	5h 43m	99%	87%
Delta Details →	SJC 22:00 → ATL 05:34DL 2136	2h 46m Atlanta	ATL 08:20 → HOU 09:28 +1DL 1509	9h 24m	98%	85%
Southwest Details →	SJC 07:40 → LAS 09:10WN 1277	2h 15m Las Vegas	LAS 11:25 → HOU 16:35WN 4724	6h 55m	100%	76%
Delta Details →	SJC 06:35 → ATL 14:14DL 654	57m Atlanta	ATL 15:11 → HOU 16:23DL 2381	7h 50m	94%	73%
Southwest Details →	SJC 11:40 → DAL 17:05WN 965	3h 25m Dallas	DAL 20:30 → HOU 21:40WN 57	8h 00m	100%	70%
American Details →	SJC 06:01 → DFW 11:46AA 1019	2h 36m Dallas-Fort Worth	DFW 14:22 → HOU 15:44AA 5002 · flown by SkyWest	7h 44m	97%	68%
Southwest Details →	SJC 06:30 → ONT 07:50WN 4879	1h 50m Ontario	ONT 09:40 → HOU 14:50WN 4868	6h 20m	100%	68%
Tight connection: often missed
Southwest Details →	SJC 17:00 → LAS 18:30WN 2266	1h 25m Las Vegas	LAS 19:55 → HOU 00:55 +1WN 2244	5h 55m	74%	41%
Southwest Details →	SJC 16:05 → PHX 18:00WN 3266	1h 20m Phoenix	PHX 19:20 → HOU 23:15WN 4315	5h 50m	72%	31%
Southwest Details →	SJC 10:40 → MDW 16:45WN 4357	55m Chicago	MDW 17:40 → HOU 20:15WN 2785	7h 35m	50%	27%

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 08m · leaves 06:22 1%

AUS · 1h 15m · leaves 06:00 2%

BWI · 1h 05m · leaves 21:40 21%

Afternoon and evening

DFW · 1h 04m · leaves 11:47 23%

PHX · 1h 20m · leaves 16:05 28%

MDW · 55m · leaves 10:40 50%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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