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

No clear winner: Alaska’s MRY → SAN flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops (seasonal or thin)


Alaska	MRY	SAN	1h 26m	81%	2.8%	718	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. Layovers up to 4 hours. Pick a connection for the details.


United Details →	MRY 13:54 → LAX 15:35UA 5523 · flown by SkyWest	3h 15m Los Angeles	LAX 18:50 → SAN 19:51UA 5415 · flown by SkyWest	5h 57m	99%	83%
United Details →	MRY 05:00 → DEN 08:32UA 2754	2h 43m Denver	DEN 11:15 → SAN 12:41UA 1940	7h 41m	100%	82%
American Details →	MRY 06:00 → PHX 07:57AA 6375 · flown by SkyWest	2h 33m Phoenix	PHX 10:30 → SAN 11:47AA 2477	5h 47m	99%	65%
United Details →	MRY 08:00 → SFO 08:56UA 5502 · flown by SkyWest	3h 25m San Francisco	SFO 12:21 → SAN 14:08UA 1257	6h 08m	94%	63%
United Details →	MRY 15:30 → SFO 16:28UA 4729 · flown by SkyWest	2h 32m San Francisco	SFO 19:00 → SAN 20:53UA 1343	5h 23m	96%	61%
American Details →	MRY 16:14 → PHX 18:14AA 6268 · flown by SkyWest	2h 06m Phoenix	PHX 20:20 → SAN 21:34AA 559	5h 20m	96%	58%
United Details →	MRY 12:00 → SFO 12:56UA 5557 · flown by SkyWest	3h 51m San Francisco	SFO 16:47 → SAN 18:39UA 1561	6h 39m	96%	56%
American Details →	MRY 12:35 → PHX 14:31AA 3720 · flown by Envoy	2h 35m Phoenix	PHX 17:06 → SAN 18:18AA 2466	5h 43m	100%	45%
Tight connection: often missed
United Details →	MRY 12:00 → SFO 12:56UA 5557 · flown by SkyWest	1h 24m San Francisco	SFO 14:20 → SAN 16:07UA 1147	4h 07m	64%	29%
United Details →	MRY 08:00 → SFO 08:56UA 5502 · flown by SkyWest	1h 09m San Francisco	SFO 10:05 → SAN 11:51UA 2177	3h 51m	36%	24%

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

SFO · 1h 09m · leaves 08:00 64%

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 5523 MRY 13:54 → LAX Delta DL 4087 LAX 18:15 → SAN Connection details →	2h 40m	5h 22m	98%	81%
United UA 2754 MRY 05:00 → DEN Southwest WN 1700 DEN 10:32 → SAN Connection details →	2h 00m	6h 57m	92%	73%
United UA 5557 MRY 12:00 → SFO Alaska AS 3337 SFO 16:24 → SAN Connection details →	3h 28m	6h 09m	96%	54%

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