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 SFO → FAT flights land within a few points of 3 in 4 on time whatever the hour.

Nonstops


United	SFO	FAT	1h 11m	75%	1.5%	1,250	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	SFO 05:50 → SLC 08:42DL 1331	2h 13m Salt Lake City	SLC 10:55 → FAT 11:53DL 3768 · flown by SkyWest	6h 03m	99%	91%
Southwest Details →	SFO 05:00 → LAS 06:35WN 4231	3h 00m Las Vegas	LAS 09:35 → FAT 10:55WN 1423	5h 55m	100%	90%
Delta Details →	SFO 09:55 → SLC 12:44DL 920	2h 59m Salt Lake City	SLC 15:43 → FAT 16:33DL 3777 · flown by SkyWest	6h 40m	97%	90%
American Details →	SFO 05:50 → PHX 08:01AA 6404 · flown by SkyWest	2h 20m Phoenix	PHX 10:21 → FAT 12:01AA 1831	6h 11m	99%	88%
United Details →	SFO 06:00 → LAX 07:39UA 2127	2h 31m Los Angeles	LAX 10:10 → FAT 11:31UA 5299 · flown by SkyWest	5h 31m	99%	88%
Alaska Details →	SFO 15:02 → PDX 16:47AS 1302	2h 11m Portland	PDX 18:58 → FAT 20:56AS 3024 · flown by SkyWest	5h 54m	96%	83%
United Details →	SFO 10:40 → DEN 14:23UA 1604	1h 34m Denver	DEN 15:57 → FAT 17:42UA 4806 · flown by SkyWest	7h 02m	92%	82%
Alaska Details →	SFO 15:50 → SEA 18:00AS 1340	2h 25m Seattle	SEA 20:25 → FAT 22:46AS 3343 · flown by SkyWest	6h 56m	97%	81%
Tight connection: often missed
Alaska Details →	SFO 06:00 → SAN 07:44AS 3455 · flown by SkyWest	1h 00m San Diego	SAN 08:44 → FAT 10:05AS 2208 · flown by Horizon	4h 05m	69%	52%
Alaska Details →	SFO 14:20 → SEA 16:31AS 790	54m Seattle	SEA 17:25 → FAT 19:36AS 393	5h 16m	60%	46%
Alaska Details →	SFO 18:42 → SAN 20:21AS 2058 · flown by Horizon	1h 32m San Diego	SAN 21:53 → FAT 23:18AS 3472 · flown by SkyWest	4h 36m	64%	43%

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

SEA · 1h 00m · leaves 07:03 13%

SAN · 1h 00m · leaves 06:00 31%

Afternoon and evening

LAX · 1h 02m · leaves 18:45 16%

DEN · 1h 14m · leaves 14:20 18%

SEA · 54m · leaves 14:20 40%

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 5605 SFO 08:40 → SLC Delta DL 3777 SLC 15:43 → FAT Connection details →	3h 54m	7h 55m	100%	94%
Southwest WN 4145 SFO 05:30 → PHX American AA 1831 PHX 10:21 → FAT Connection details →	2h 51m	6h 31m	100%	90%
Southwest WN 2222 SFO 06:05 → LAX United UA 5299 LAX 10:10 → FAT Connection details →	2h 35m	5h 26m	100%	89%

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