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 8% of the time at 8 am and 1 time in 4 at 10 pm.

Nonstops (seasonal or thin)


United	SAT	SFO	4h 11m	86%	0.5%	434	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Southwest + Unitedtwo ticketsDetails →	SAT 13:05 → LAX 14:10WN 404	3h 00m Los Angeles	LAX 17:10 → SFO 18:38UA 233	7h 33m	96%	80%
United Details →	SAT 17:57 → IAH 19:04UA 2323	2h 55m Houston	IAH 21:59 → SFO 00:05 +1UA 1609	8h 08m	97%	77%
United Details →	SAT 11:43 → IAH 12:55UA 6278 · flown by Mesa	2h 35m Houston	IAH 15:30 → SFO 17:35UA 589	7h 52m	97%	77%
Southwest Details →	SAT 05:40 → DAL 06:55WN 4512	50m Dallas	DAL 07:45 → SFO 09:30WN 485	5h 50m	88%	76%
Southwest + Unitedtwo ticketsDetails →	SAT 09:05 → DEN 10:15WN 1577	3h 10m Denver	DEN 13:25 → SFO 15:09UA 1812	8h 04m	100%	76%
United Details →	SAT 07:00 → IAD 11:27UA 471	1h 13m Dulles	IAD 12:40 → SFO 15:27UA 1434	10h 27m	97%	75%
United Details →	SAT 05:30 → IAH 06:37UA 469	2h 58m Houston	IAH 09:35 → SFO 11:35UA 2358	8h 05m	99%	71%
Delta Details →	SAT 06:40 → ATL 10:06DL 1066	2h 50m Atlanta	ATL 12:56 → SFO 14:50DL 750	10h 14m	99%	71%
Tight connection: often missed
United Details →	SAT 06:40 → ORD 09:38UA 1332	47m Chicago	ORD 10:25 → SFO 13:14UA 543	8h 34m	70%	42%
American Details →	SAT 11:04 → DFW 12:21AA 413	54m Dallas-Fort Worth	DFW 13:15 → SFO 14:58AA 2997	5h 54m	64%	34%
American Details →	SAT 15:44 → PHX 16:10AA 2495	58m Phoenix	PHX 17:08 → SFO 19:09AA 1613	5h 25m	50%	26%

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

IAD · 1h 13m · leaves 07:00 3%

LAX · 1h 02m · leaves 07:00 7%

DFW · 1h 19m · leaves 06:01 9%

Afternoon and evening

ATL · 46m · leaves 18:18 26%

DFW · 1h 15m · leaves 20:23 38%

PHX · 58m · leaves 15:44 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