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

Take the nonstop: Alaska JAC → SEA (2h 22m) reaches Seattle on time 9 times in 10; the most reliable connection, Delta via Salt Lake City (4h 15m), 66%.

Nonstops (seasonal or thin)


Alaska	JAC	SEA	2h 22m	90%	0.5%	203	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Seattle on time. Total trip = scheduled departure to arrival, layover included (Seattle is 1 h behind Jackson). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	JAC 18:05 → SLC 19:09DL 417	3h 36m Salt Lake City	SLC 22:45 → SEA 23:59DL 2998	6h 54m	98%	90%
Delta Details →	JAC 07:39 → SLC 08:55DL 4022 · flown by SkyWest	2h 40m Salt Lake City	SLC 11:35 → SEA 12:52DL 2995	6h 13m	100%	88%
United Details →	JAC 08:00 → LAX 09:31UA 2811	2h 12m Los Angeles	LAX 11:43 → SEA 14:36UA 325	7h 36m	97%	86%
United Details →	JAC 10:35 → DEN 12:13UA 2170	1h 47m Denver	DEN 14:00 → SEA 16:00UA 2164	6h 25m	100%	84%
United Details →	JAC 07:00 → DEN 08:40UA 1978	2h 42m Denver	DEN 11:22 → SEA 13:22UA 1424	7h 22m	98%	82%
Delta Details →	JAC 13:15 → SLC 14:24DL 2282	2h 56m Salt Lake City	SLC 17:20 → SEA 18:36DL 871	6h 21m	98%	78%
United Details →	JAC 10:35 → DEN 12:30UA 5543 · flown by SkyWest	3h 28m Denver	DEN 15:58 → SEA 17:59UA 2013	8h 24m	100%	77%
Delta Details →	JAC 11:28 → SLC 12:45DL 4470 · flown by SkyWest	2h 29m Salt Lake City	SLC 15:14 → SEA 16:30DL 2817	6h 02m	98%	75%
Tight connection: often missed
United Details →	JAC 16:23 → DEN 18:00UA 531	1h 10m Denver	DEN 19:10 → SEA 21:10UA 360	5h 47m	66%	45%
United Details →	JAC 08:00 → SFO 09:26UA 336	49m San Francisco	SFO 10:15 → SEA 12:34UA 2192	5h 34m	8%	4%

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 · 49m · leaves 08:00 92%

Afternoon and evening

DFW · 1h 10m · leaves 11:50 25%

DEN · 1h 10m · leaves 16:23 34%

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 4022 JAC 07:39 → SLC Alaska AS 664 SLC 12:51 → SEA Connection details →	3h 56m	7h 25m	100%	88%
United UA 2811 JAC 08:00 → LAX Delta DL 1045 LAX 11:59 → SEA Connection details →	2h 28m	7h 54m	97%	86%
United UA 1978 JAC 07:00 → DEN Frontier F9 1175 DEN 12:00 → SEA Connection details →	3h 20m	8h 04m	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