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 6% of the time at 9 am and 2 times in 5 at 4 pm.

Nonstops


Southwest	SAT	LAS	2h 50m	81%	0.4%	1,569	Flying now
Frontier	SAT	LAS	3h 02m	77%	1.0%	291	Flying now
Spirit	SAT	LAS	2h 57m	81%	0.6%	180	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	SAT 05:25 → HOU 06:32WN 1315	1h 18m Houston	HOU 07:50 → LAS 09:00WN 1998	5h 30m	96%	94%
Southwest Details →	SAT 05:00 → MCO 08:45WN 4608	1h 15m Orlando	MCO 10:00 → LAS 11:45WN 4696	8h 45m	100%	88%
United Details →	SAT 05:40 → DEN 06:57UA 1464	1h 08m Denver	DEN 08:05 → LAS 09:07UA 2316	5h 27m	93%	87%
United Details →	SAT 09:37 → IAH 10:44UA 2827	3h 36m Houston	IAH 14:20 → LAS 15:37UA 1971	8h 00m	100%	85%
United Details →	SAT 07:43 → IAH 08:50UA 410	3h 05m Houston	IAH 11:55 → LAS 13:13UA 1524	7h 30m	96%	84%
Southwest Details →	SAT 05:25 → DEN 06:38WN 1471	1h 02m Denver	DEN 07:40 → LAS 08:35WN 1559	5h 10m	92%	81%
Southwest Details →	SAT 06:20 → SAN 07:10WN 3545	2h 35m San Diego	SAN 09:45 → LAS 11:10WN 2695	6h 50m	100%	81%
United Details →	SAT 06:40 → ORD 09:38UA 1332	1h 22m Chicago	ORD 11:00 → LAS 13:05UA 2440	8h 25m	94%	81%
Tight connection: often missed
Southwest Details →	SAT 06:45 → MDW 09:20WN 3583	50m Chicago	MDW 10:10 → LAS 12:00WN 2794	7h 15m	72%	57%
United Details →	SAT 16:35 → DEN 18:08UA 2479	57m Denver	DEN 19:05 → LAS 20:08UA 655	5h 33m	74%	51%
American Details →	SAT 14:48 → DFW 16:11AA 2609	47m Dallas-Fort Worth	DFW 16:58 → LAS 17:48AA 2864	5h 00m	59%	34%

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

MCO · 1h 15m · leaves 05:00 0%

ATL · 1h 02m · leaves 05:25 6%

DEN · 1h 08m · leaves 05:40 7%

Afternoon and evening

DFW · 47m · leaves 14:48 41%

ORD · 52m · leaves 13:32 46%

BNA · 58m · leaves 16:55 78%

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 4123 SAT 06:45 → PHX American AA 2037 PHX 10:24 → LAS Connection details →	3h 19m	6h 52m	100%	90%
Southwest WN 3565 SAT 05:45 → DEN Frontier F9 1993 DEN 10:25 → LAS Connection details →	3h 25m	7h 44m	100%	81%
American AA 3906 SAT 08:41 → PHX Southwest WN 1382 PHX 13:15 → LAS Connection details →	3h 59m	7h 44m	100%	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