Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: United’s SBA → SFO flights land within a few points of 63% on time whatever the hour.

Nonstops


United	SBA	SFO	1h 17m	63%	1.2%	1,640	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.


Delta Details →	SBA 05:50 → SLC 08:53DL 4069 · flown by SkyWest	2h 07m Salt Lake City	SLC 11:00 → SFO 12:08DL 902	6h 18m	100%	65%
Delta Details →	SBA 16:50 → SLC 19:57DL 3853 · flown by SkyWest	2h 53m Salt Lake City	SLC 22:50 → SFO 23:52DL 1091	7h 06m	99%	65%
United Details →	SBA 06:00 → LAX 07:03UA 4649 · flown by SkyWest	2h 07m Los Angeles	LAX 09:10 → SFO 10:45UA 520	4h 45m	95%	62%
United Details →	SBA 12:48 → DEN 16:16UA 1790	1h 38m Denver	DEN 17:54 → SFO 19:40UA 1007	6h 52m	89%	60%
United Details →	SBA 18:18 → LAX 19:32UA 5647 · flown by SkyWest	2h 02m Los Angeles	LAX 21:34 → SFO 23:02UA 2056	4h 44m	97%	58%
Alaska Details →	SBA 06:00 → SAN 07:04AS 2174 · flown by Horizon	4h 00m San Diego	SAN 11:04 → SFO 12:51AS 3347 · flown by SkyWest	6h 51m	98%	52%
American Details →	SBA 12:16 → PHX 13:54AA 3784 · flown by Envoy	3h 14m Phoenix	PHX 17:08 → SFO 19:09AA 1613	6h 53m	97%	51%
Alaska Details →	SBA 07:34 → PDX 09:45AS 2178 · flown by Horizon	57m Portland	PDX 10:42 → SFO 12:39AS 1445	5h 05m	92%	49%
Tight connection: often missed
Alaska Details →	SBA 14:39 → PDX 16:49AS 2318 · flown by Horizon	47m Portland	PDX 17:36 → SFO 19:30AS 504	4h 51m	48%	27%
Southwest Details →	SBA 18:00 → LAS 19:15WN 3602	50m Las Vegas	LAS 20:05 → SFO 21:35WN 4397	3h 35m	69%	12%

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 16m · leaves 05:00 4%

PDX · 57m · leaves 07:34 8%

SAN · 1h 00m · leaves 06:00 9%

Afternoon and evening

SLC · 1h 02m · leaves 16:50 6%

PDX · 47m · leaves 14:39 52%

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.


United UA 5647 SBA 18:18 → LAX American AA 6510 LAX 22:32 → SFO Connection details →	3h 00m	5h 41m	98%	79%
Southwest WN 4125 SBA 06:05 → DEN United UA 1561 DEN 11:21 → SFO Connection details →	2h 01m	6h 59m	98%	70%
American AA 1640 SBA 06:00 → PHX United UA 2619 PHX 11:12 → SFO Connection details →	3h 36m	7h 15m	99%	64%

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