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 3% of the time at 9 am and 1 time in 4 at 8 pm.

Nonstops (seasonal or thin)


Southwest	SAN	MCI	3h 10m	72%	0.8%	385	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Kansas City on time. Total trip = scheduled departure to arrival, layover included (Kansas City is 2 h ahead of San Diego). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	SAN 06:35 → LAS 08:15WN 2970	1h 50m Las Vegas	LAS 10:05 → MCI 14:55WN 786	6h 20m	98%	98%
Delta Details →	SAN 06:15 → LAX 07:34DL 3743 · flown by SkyWest	2h 01m Los Angeles	LAX 09:35 → MCI 14:50DL 1517	6h 35m	99%	91%
United Details →	SAN 06:20 → LAX 07:21UA 1006	2h 49m Los Angeles	LAX 10:10 → MCI 15:45UA 5426 · flown by SkyWest	7h 25m	99%	90%
Delta Details →	SAN 22:30 → ATL 05:50DL 819	2h 30m Atlanta	ATL 08:20 → MCI 09:31 +1DL 2471	9h 01m	99%	89%
United Details →	SAN 06:35 → DEN 10:08UA 2368	3h 32m Denver	DEN 13:40 → MCI 16:22UA 586	7h 47m	100%	86%
Southwest Details →	SAN 06:30 → DEN 09:55WN 3493	2h 35m Denver	DEN 12:30 → MCI 15:05WN 351	6h 35m	98%	86%
United Details →	SAN 06:15 → IAH 11:42UA 2760	2h 53m Houston	IAH 14:35 → MCI 16:47UA 3987 · flown by Mesa	8h 32m	100%	86%
Delta Details →	SAN 06:20 → MSP 12:05DL 2134	3h 15m Minneapolis	MSP 15:20 → MCI 16:47DL 1630	8h 28m	99%	86%
Tight connection: often missed
Delta Details →	SAN 17:01 → SLC 20:00DL 1210	50m Salt Lake City	SLC 20:50 → MCI 00:18 +1DL 2993	5h 16m	74%	61%
American Details →	SAN 11:07 → DFW 16:28AA 2476	47m Dallas-Fort Worth	DFW 17:15 → MCI 19:01AA 2047	5h 54m	61%	30%
Southwest Details →	SAN 13:20 → DEN 16:55WN 3496	1h 00m Denver	DEN 17:55 → MCI 20:45WN 4305	5h 25m	25%	11%

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

SLC · 1h 12m · leaves 06:15 3%

AUS · 1h 00m · leaves 06:30 8%

DEN · 53m · leaves 06:30 19%

Afternoon and evening

SLC · 50m · leaves 17:01 26%

DFW · 55m · leaves 16:32 60%

DEN · 1h 00m · leaves 13:20 75%

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.


Delta DL 3743 SAN 06:15 → LAX United UA 5426 LAX 10:10 → MCI Connection details →	2h 36m	7h 30m	99%	90%
United UA 1006 SAN 06:20 → LAX Delta DL 1517 LAX 09:35 → MCI Connection details →	2h 14m	6h 30m	97%	90%
Alaska AS 1618 SAN 07:00 → DEN United UA 586 DEN 13:40 → MCI Connection details →	3h 07m	7h 22m	100%	88%

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