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 5% of the time at 10 am and 42% of the time at 7 pm.

Nonstops


Alaska	AUS	SAN	3h 21m	81%	1.7%	1,036	Flying now
Southwest	AUS	SAN	3h 05m	70%	0.7%	1,419	Flying now
Frontier	AUS	SAN	3h 06m	78%	1.9%	106	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	AUS 05:45 → DEN 07:00WN 282	1h 15m Denver	DEN 08:15 → SAN 09:40WN 1699	5h 55m	98%	85%
United Details →	AUS 06:00 → LAX 07:40UA 4642 · flown by SkyWest	1h 20m Los Angeles	LAX 09:00 → SAN 10:08UA 4643 · flown by SkyWest	6h 08m	97%	85%
United Details →	AUS 08:30 → DEN 09:49UA 595	3h 41m Denver	DEN 13:30 → SAN 14:55UA 1302	8h 25m	99%	85%
United Details →	AUS 14:10 → LAX 15:40UA 5841 · flown by SkyWest	3h 10m Los Angeles	LAX 18:50 → SAN 19:51UA 5415 · flown by SkyWest	7h 41m	100%	84%
United Details →	AUS 11:27 → DEN 12:45UA 779	3h 10m Denver	DEN 15:55 → SAN 17:20UA 1281	7h 53m	99%	84%
Southwest Details →	AUS 05:35 → DAL 06:40WN 274	1h 10m Dallas	DAL 07:50 → SAN 08:50WN 192	5h 15m	98%	83%
Delta Details →	AUS 06:25 → ATL 09:45DL 1258	2h 08m Atlanta	ATL 11:53 → SAN 13:21DL 540	8h 56m	98%	82%
United Details →	AUS 05:30 → IAH 06:33UA 1966	2h 57m Houston	IAH 09:30 → SAN 10:51UA 2491	7h 21m	99%	82%
Tight connection: often missed
American Details →	AUS 16:55 → DFW 18:11AA 3400 · flown by Envoy	51m Dallas-Fort Worth	DFW 19:02 → SAN 20:03AA 1243	5h 08m	61%	33%
Southwest Details →	AUS 16:30 → BNA 18:40WN 259	1h 40m Nashville	BNA 20:20 → SAN 22:25WN 1978	8h 00m	73%	29%
American Details →	AUS 14:44 → DFW 16:03AA 1397	50m Dallas-Fort Worth	DFW 16:53 → SAN 17:54AA 2458	5h 10m	57%	20%

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

DEN · 1h 15m · leaves 05:45 2%

DAL · 1h 10m · leaves 05:35 2%

LAX · 1h 20m · leaves 06:00 3%

Afternoon and evening

BNA · 55m · leaves 13:05 51%

LAS · 1h 00m · leaves 20:30 64%

HOU · 55m · leaves 18:45 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 334 AUS 17:30 → LAX Delta DL 3746 LAX 22:40 → SAN Connection details →	4h 00m	8h 10m	100%	86%
Southwest WN 1680 AUS 10:45 → DEN United UA 1281 DEN 15:55 → SAN Connection details →	4h 00m	8h 35m	100%	83%
Southwest WN 403 AUS 09:15 → SLC Alaska AS 3123 SLC 14:39 → SAN Connection details →	3h 39m	8h 31m	100%	83%

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