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 1 time in 10 at 10 am and 27% of the time at 10 pm.

Nonstops


Frontier	PHX	SAN	1h 17m	76%	0.5%	389	Flying now
American	PHX	SAN	1h 17m	74%	0.8%	1,668	Flying now
Alaska	PHX	SAN	1h 20m	72%	4.1%	1,258	Flying now
Southwest	PHX	SAN	1h 15m	71%	1.0%	3,219	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 →	PHX 06:00 → LAX 07:37UA 5849 · flown by SkyWest	1h 23m Los Angeles	LAX 09:00 → SAN 10:08UA 4643 · flown by SkyWest	4h 08m	98%	85%
Delta Details →	PHX 06:00 → SLC 08:40DL 1535	2h 35m Salt Lake City	SLC 11:15 → SAN 12:17DL 1296	6h 17m	99%	82%
United Details →	PHX 06:00 → DEN 08:52UA 337	2h 23m Denver	DEN 11:15 → SAN 12:41UA 1940	6h 41m	99%	81%
Delta Details →	PHX 17:05 → SLC 19:43DL 1738	3h 12m Salt Lake City	SLC 22:55 → SAN 23:50DL 1202	6h 48m	98%	81%
Southwest Details →	PHX 05:15 → OAK 07:10WN 4838	55m Oakland	OAK 08:05 → SAN 09:40WN 3074	4h 25m	97%	81%
United Details →	PHX 18:54 → LAX 20:31UA 4722 · flown by SkyWest	2h 25m Los Angeles	LAX 22:56 → SAN 23:54UA 594	5h 00m	100%	80%
United Details →	PHX 09:08 → DEN 12:00UA 597	1h 30m Denver	DEN 13:30 → SAN 14:55UA 1302	5h 47m	93%	80%
Southwest Details →	PHX 06:15 → DEN 09:00WN 1706	1h 32m Denver	DEN 10:32 → SAN 12:00WN 1700	5h 42m	100%	79%
Tight connection: often missed
Delta Details →	PHX 20:09 → LAX 21:50DL 4077 · flown by SkyWest	50m Los Angeles	LAX 22:40 → SAN 23:40DL 3746 · flown by SkyWest	3h 31m	73%	63%
American Details →	PHX 17:15 → DFW 21:50AA 3232	1h 05m Dallas-Fort Worth	DFW 22:55 → SAN 23:59AA 2568	6h 44m	59%	30%
Southwest Details →	PHX 15:25 → DEN 18:10WN 3265	1h 05m Denver	DEN 19:15 → SAN 20:40WN 1703	5h 15m	39%	7%

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

LAX · 1h 15m · leaves 06:00 1%

DEN · 1h 20m · leaves 08:50 2%

LAS · 1h 20m · leaves 07:30 2%

Afternoon and evening

DFW · 50m · leaves 13:35 41%

DEN · 1h 05m · leaves 15:25 61%

LAS · 55m · leaves 16:00 61%

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 4722 PHX 18:54 → LAX Delta DL 3746 LAX 22:40 → SAN Connection details →	2h 09m	4h 46m	98%	85%
Southwest WN 147 PHX 11:40 → SLC Delta DL 1252 SLC 17:10 → SAN Connection details →	3h 00m	6h 26m	100%	84%
Southwest WN 1706 PHX 06:15 → DEN United UA 1940 DEN 11:15 → SAN Connection details →	2h 15m	6h 26m	100%	82%

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