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 45-minute layover misses 13% of the time at 11 am and 3 times in 5 at 6 pm.

Nonstops (seasonal or thin)


United	SFO	SAT	3h 46m	78%	0.2%	434	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 (San Antonio is 2 h ahead of San Francisco). Layovers up to 4 hours. Pick a connection for the details.


American Details →	SFO 06:00 → LAX 07:41AA 6294 · flown by SkyWest	1h 47m Los Angeles	LAX 09:28 → SAT 14:36AA 6307 · flown by SkyWest	6h 36m	98%	92%
United Details →	SFO 05:00 → DEN 08:35UA 1479	1h 00m Denver	DEN 09:35 → SAT 12:43UA 2625	5h 43m	96%	88%
United Details →	SFO 00:45 → IAH 06:34UA 604	3h 05m Houston	IAH 09:39 → SAT 10:46UA 6201 · flown by Mesa	8h 01m	99%	88%
Southwest Details →	SFO 05:00 → LAS 06:35WN 4231	3h 45m Las Vegas	LAS 10:20 → SAT 15:00WN 2333	8h 00m	100%	86%
United Details →	SFO 00:50 → ORD 07:16UA 1850	2h 09m Chicago	ORD 09:25 → SAT 12:29UA 490	9h 39m	100%	85%
Delta Details →	SFO 07:00 → LAX 08:30DL 1598	1h 25m Los Angeles	LAX 09:55 → SAT 14:52DL 2568	5h 52m	97%	85%
United Details →	SFO 06:15 → DEN 09:59UA 1758	3h 45m Denver	DEN 13:44 → SAT 16:55UA 1022	8h 40m	97%	85%
Southwest Details →	SFO 22:50 → BNA 05:10WN 3634	2h 50m Nashville	BNA 08:00 → SAT 10:20 +1WN 663	9h 30m	97%	85%
Tight connection: often missed
Delta Details →	SFO 11:39 → DTW 19:14DL 361	56m Detroit	DTW 20:10 → SAT 22:21DL 1365	8h 42m	74%	52%
United Details →	SFO 12:00 → ORD 18:35UA 2317	1h 23m Chicago	ORD 19:58 → SAT 22:57UA 1394	8h 57m	68%	37%
American Details →	SFO 11:24 → DFW 17:14AA 1849	1h 16m Dallas-Fort Worth	DFW 18:30 → SAT 19:43AA 499	6h 19m	63%	36%

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

IAH · 1h 13m · leaves 05:00 3%

SLC · 1h 09m · leaves 05:50 3%

DEN · 1h 00m · leaves 05:00 4%

Afternoon and evening

LAX · 46m · leaves 16:39 61%

PHX · 1h 10m · leaves 13:08 64%

DAL · 1h 00m · leaves 15:10 83%

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 2222 SFO 06:05 → LAX American AA 6307 LAX 09:28 → SAT Connection details →	1h 53m	6h 31m	100%	93%
Alaska AS 1620 SFO 06:00 → LAX Delta DL 2568 LAX 09:55 → SAT Connection details →	2h 23m	6h 52m	100%	88%
Frontier F9 1230 SFO 06:00 → DEN United UA 1022 DEN 13:44 → SAT Connection details →	3h 55m	8h 55m	99%	88%

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