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 HOU → SAT flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops


Southwest	HOU	SAT	1h 00m	79%	0.1%	1,330	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach San Antonio on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	HOU 06:20 → PHX 06:55WN 2062	1h 00m Phoenix	PHX 07:55 → SAT 12:05WN 4081	5h 45m	93%	87%
Southwest Details →	HOU 07:50 → LAS 09:00WN 1998	1h 20m Las Vegas	LAS 10:20 → SAT 15:00WN 2333	7h 10m	98%	84%
Southwest Details →	HOU 05:30 → DEN 06:55WN 1970	2h 25m Denver	DEN 09:20 → SAT 12:25WN 3149	6h 55m	100%	81%
Southwest Details →	HOU 06:25 → MDW 08:50WN 2039	1h 45m Chicago	MDW 10:35 → SAT 13:15WN 2570	6h 50m	100%	81%
American Details →	HOU 09:30 → DFW 10:59AA 3573 · flown by Envoy	3h 46m Dallas-Fort Worth	DFW 14:45 → SAT 15:55AA 3777 · flown by Envoy	6h 25m	98%	77%
Delta Details →	HOU 17:12 → ATL 20:28DL 2381	2h 32m Atlanta	ATL 23:00 → SAT 00:33 +1DL 1508	7h 21m	94%	74%
Delta Details →	HOU 10:16 → ATL 13:20DL 1509	2h 29m Atlanta	ATL 15:49 → SAT 17:22DL 1465	7h 06m	98%	73%
Southwest Details →	HOU 07:00 → DAL 08:10WN 4	1h 40m Dallas	DAL 09:50 → SAT 10:55WN 2617	3h 55m	97%	71%
Tight connection: often missed
American Details →	HOU 16:14 → DFW 17:38AA 5002 · flown by SkyWest	52m Dallas-Fort Worth	DFW 18:30 → SAT 19:43AA 499	3h 29m	55%	31%
American Details →	HOU 20:23 → DFW 21:50AA 3351 · flown by Envoy	1h 00m Dallas-Fort Worth	DFW 22:50 → SAT 23:58AA 1599	3h 35m	73%	25%

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 20m · leaves 07:50 2%

PHX · 1h 00m · leaves 06:20 7%

DEN · 50m · leaves 05:30 9%

Afternoon and evening

PHX · 1h 20m · leaves 14:25 24%

LAS · 1h 20m · leaves 18:25 24%

DFW · 52m · leaves 16:14 45%

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 1970 HOU 05:30 → DEN United UA 2625 DEN 09:35 → SAT Connection details →	2h 40m	7h 13m	100%	92%
Southwest WN 1972 HOU 10:20 → DEN United UA 1022 DEN 13:44 → SAT Connection details →	1h 54m	6h 35m	85%	77%
Southwest WN 1948 HOU 17:50 → ATL Delta DL 1508 ATL 23:00 → SAT Connection details →	2h 05m	6h 43m	59%	46%

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