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 MRY → SFO flights land within a few points of 64% on time whatever the hour.

Nonstops (seasonal or thin)


United	MRY	SFO	56m	64%	0.5%	733	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. Layovers up to 4 hours. Pick a connection for the details.


United Details →	MRY 13:54 → LAX 15:35UA 5523 · flown by SkyWest	1h 35m Los Angeles	LAX 17:10 → SFO 18:38UA 233	4h 44m	97%	81%
United Details →	MRY 05:00 → DEN 08:32UA 2754	2h 49m Denver	DEN 11:21 → SFO 13:04UA 1561	8h 04m	100%	72%
United + Deltatwo ticketsDetails →	MRY 07:05 → LAX 08:30UA 2655	3h 30m Los Angeles	LAX 12:00 → SFO 13:26DL 2725	6h 23m	99%	66%
United Details →	MRY 12:29 → DEN 16:19UA 4713 · flown by SkyWest	1h 35m Denver	DEN 17:54 → SFO 19:40UA 1007	7h 11m	97%	65%
Alaska + Unitedtwo ticketsDetails →	MRY 06:00 → SAN 07:34AS 3384 · flown by SkyWest	3h 27m San Diego	SAN 11:01 → SFO 12:47UA 2309	6h 47m	99%	65%
American + Unitedtwo ticketsDetails →	MRY 06:00 → PHX 07:57AA 6375 · flown by SkyWest	3h 15m Phoenix	PHX 11:12 → SFO 13:15UA 2619	7h 15m	99%	63%
American Details →	MRY 12:35 → PHX 14:31AA 3720 · flown by Envoy	2h 37m Phoenix	PHX 17:08 → SFO 19:09AA 1613	6h 34m	100%	52%
American + Southwesttwo ticketsDetails →	MRY 19:09 → PHX 21:04AA 2884	1h 46m Phoenix	PHX 22:50 → SFO 00:55 +1WN 1098	5h 46m	86%	49%
Tight connection: often missed
American Details →	MRY 12:42 → DFW 18:25AA 2140	1h 03m Dallas-Fort Worth	DFW 19:28 → SFO 21:10AA 1430	8h 28m	74%	36%

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.

Afternoon and evening

DFW · 1h 03m · leaves 12:42 26%

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