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 4% of the time at 9 am and 38% of the time at 6 pm.

Nonstops


United	LAS	SFO	1h 42m	66%	0.4%	2,793	Flying now
Alaska	LAS	SFO	1h 43m	66%	0.8%	1,124	Flying now
Frontier	LAS	SFO	1h 53m	64%	1.7%	893	Flying now
Southwest	LAS	SFO	1h 38m	47%	0.6%	1,312	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


American Details →	LAS 18:03 → LAX 19:23AA 4946 · flown by SkyWest	3h 09m Los Angeles	LAX 22:32 → SFO 23:59AA 6510 · flown by SkyWest	5h 56m	100%	81%
United Details →	LAS 14:15 → LAX 15:35UA 2184	1h 35m Los Angeles	LAX 17:10 → SFO 18:38UA 233	4h 23m	93%	77%
Alaska Details →	LAS 11:00 → PDX 13:20AS 1467	1h 29m Portland	PDX 14:49 → SFO 16:40AS 236	5h 40m	97%	71%
Alaska Details →	LAS 11:30 → SEA 14:14AS 785	2h 22m Seattle	SEA 16:36 → SFO 18:48AS 1385	7h 18m	98%	69%
Delta Details →	LAS 06:48 → LAX 08:00DL 553	4h 00m Los Angeles	LAX 12:00 → SFO 13:26DL 2725	6h 40m	99%	66%
Alaska Details →	LAS 07:22 → SEA 10:05AS 479	1h 37m Seattle	SEA 11:42 → SFO 14:04AS 655	6h 42m	95%	66%
Delta Details →	LAS 13:08 → LAX 14:32DL 1696	3h 03m Los Angeles	LAX 17:35 → SFO 18:55DL 1559	5h 48m	97%	65%
United Details →	LAS 10:45 → LAX 12:05UA 203	1h 20m Los Angeles	LAX 13:25 → SFO 14:53UA 372	4h 08m	100%	65%
Tight connection: often missed
Frontier Details →	LAS 18:34 → DEN 21:41F9 1994	48m Denver	DEN 22:29 → SFO 00:23 +1F9 3439	5h 49m	74%	51%
Alaska Details →	LAS 11:11 → SAN 12:29AS 2416 · flown by Horizon	1h 01m San Diego	SAN 13:30 → SFO 15:14AS 3352 · flown by SkyWest	4h 03m	67%	47%
Alaska Details →	LAS 07:59 → SAN 09:15AS 2253 · flown by Horizon	49m San Diego	SAN 10:04 → SFO 11:49AS 3205 · flown by SkyWest	3h 50m	23%	6%

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 11m · leaves 05:30 1%

LAX · 1h 20m · leaves 06:48 3%

SEA · 1h 00m · leaves 06:05 4%

Afternoon and evening

PDX · 59m · leaves 18:27 18%

DEN · 54m · leaves 14:53 38%

SAN · 50m · leaves 18:05 95%

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 3168 LAS 12:10 → LAX United UA 233 LAX 17:10 → SFO Connection details →	3h 40m	6h 28m	98%	81%
Southwest WN 2255 LAS 18:30 → LAX American AA 6510 LAX 22:32 → SFO Connection details →	2h 47m	5h 29m	95%	77%
Southwest WN 2272 LAS 11:40 → SAN United UA 2117 SAN 16:09 → SFO Connection details →	3h 14m	6h 09m	100%	76%

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