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 JAC → SAN flights land within a few points of 73% on time whatever the hour.

Nonstops (seasonal or thin)


Alaska	JAC	SAN	2h 39m	73%	1.1%	90	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 (San Diego is 1 h behind Jackson). Layovers up to 4 hours. Pick a connection for the details.


United Details →	JAC 10:35 → DEN 12:13UA 2170	3h 42m Denver	DEN 15:55 → SAN 17:20UA 1281	7h 45m	100%	85%
Delta Details →	JAC 07:39 → SLC 08:55DL 4022 · flown by SkyWest	2h 20m Salt Lake City	SLC 11:15 → SAN 12:17DL 1296	5h 38m	98%	81%
Delta Details →	JAC 13:15 → SLC 14:24DL 2282	2h 46m Salt Lake City	SLC 17:10 → SAN 18:06DL 1252	5h 51m	98%	81%
Delta Details →	JAC 18:05 → SLC 19:09DL 417	3h 46m Salt Lake City	SLC 22:55 → SAN 23:50DL 1202	6h 48m	98%	81%
United Details →	JAC 07:00 → DEN 08:40UA 1978	2h 35m Denver	DEN 11:15 → SAN 12:41UA 1940	6h 41m	98%	79%
United Details →	JAC 10:35 → DEN 12:30UA 5543 · flown by SkyWest	1h 00m Denver	DEN 13:30 → SAN 14:55UA 1302	5h 20m	92%	78%
Delta Details →	JAC 11:28 → SLC 12:45DL 4470 · flown by SkyWest	2h 15m Salt Lake City	SLC 15:00 → SAN 15:56DL 1210	5h 28m	98%	74%
Delta Details →	JAC 07:00 → MSP 10:27DL 3931 · flown by SkyWest	1h 11m Minneapolis	MSP 11:38 → SAN 13:29DL 2125	7h 29m	89%	72%
Tight connection: often missed
American Details →	JAC 13:43 → ORD 18:05AA 1974	54m Chicago	ORD 18:59 → SAN 21:22AA 1924	8h 38m	64%	37%
American Details →	JAC 16:14 → DFW 20:08AA 883	1h 26m Dallas-Fort Worth	DFW 21:34 → SAN 22:37AA 1011	7h 23m	72%	23%
American Details →	JAC 15:39 → ORD 20:07AA 3282	1h 03m Chicago	ORD 21:10 → SAN 23:26AA 2457	8h 47m	48%	20%

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

MSP · 1h 11m · leaves 07:00 11%

ORD · 1h 20m · leaves 07:30 12%

Afternoon and evening

DFW · 1h 08m · leaves 11:50 26%

DEN · 1h 20m · leaves 16:23 31%

ORD · 1h 03m · leaves 15:39 52%

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 4470 JAC 11:28 → SLC Alaska AS 3123 SLC 14:39 → SAN Connection details →	1h 54m	5h 18m	96%	80%
American AA 5012 JAC 13:21 → LAX United UA 5415 LAX 18:50 → SAN Connection details →	3h 58m	7h 30m	95%	79%
Delta DL 2282 JAC 13:15 → SLC Alaska AS 3019 SLC 18:06 → SAN Connection details →	3h 42m	7h 01m	98%	76%

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