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

Connect in the morning. The same one-hour layover misses 1 time in 10 at 9 am and 1 time in 4 at 5 pm.

Nonstops (seasonal or thin)


United	IAH	SJC	4h 03m	85%	0.0%	215	Flying now

Best connections, any airlines

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 Houston). Layovers up to 4 hours. Pick a connection for the details.


United + Deltatwo ticketsDetails →	IAH 09:53 → LAX 11:30UA 469	3h 02m Los Angeles	LAX 14:32 → SJC 15:46DL 3822 · flown by SkyWest	7h 53m	99%	93%
United + Alaskatwo ticketsDetails →	IAH 09:30 → PDX 11:56UA 740	2h 34m Portland	PDX 14:30 → SJC 16:25AS 3210 · flown by SkyWest	8h 55m	94%	91%
United + Deltatwo ticketsDetails →	IAH 07:20 → LAX 08:57UA 2600	4h 00m Los Angeles	LAX 12:57 → SJC 14:19DL 3842 · flown by SkyWest	8h 59m	100%	90%
United + Southwesttwo ticketsDetails →	IAH 07:20 → LAS 08:35UA 1264	3h 35m Las Vegas	LAS 12:10 → SJC 13:45WN 1242	8h 25m	99%	90%
United + Deltatwo ticketsDetails →	IAH 09:45 → SLC 11:59UA 756	3h 12m Salt Lake City	SLC 15:11 → SJC 16:07DL 1260	8h 22m	100%	90%
United + Alaskatwo ticketsDetails →	IAH 08:00 → SEA 10:47UA 2654	3h 31m Seattle	SEA 14:18 → SJC 16:32AS 1366	10h 32m	100%	89%
United + Deltatwo ticketsDetails →	IAH 06:00 → LAX 07:29UA 2110	1h 53m Los Angeles	LAX 09:22 → SJC 10:43DL 2965	6h 43m	100%	89%
Delta Details →	IAH 07:35 → SLC 09:51DL 1583	1h 49m Salt Lake City	SLC 11:40 → SJC 12:38DL 1254	7h 03m	94%	85%
Tight connection: often missed
Delta Details →	IAH 16:09 → LAX 17:30DL 1143	46m Los Angeles	LAX 18:16 → SJC 19:32DL 3883 · flown by SkyWest	5h 26m	64%	55%
Delta Details →	IAH 14:35 → MSP 17:26DL 2678	1h 04m Minneapolis	MSP 18:30 → SJC 20:35DL 2087	8h 02m	70%	46%
Delta Details →	IAH 16:51 → ATL 20:13DL 2890	46m Atlanta	ATL 20:59 → SJC 22:49DL 933	8h 05m	44%	37%

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

ATL · 57m · leaves 05:40 10%

DFW · 1h 09m · leaves 09:27 13%

MSP · 47m · leaves 06:30 22%

Afternoon and evening

LAX · 46m · leaves 16:09 36%

ATL · 46m · leaves 16:51 56%

DFW · 59m · leaves 18:53 77%

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