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

No clear winner: Delta’s JAC → SLC flights land within a few points of 88% on time whatever the hour.

Nonstops


Delta	JAC	SLC	1h 07m	88%	1.0%	1,217	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Salt Lake City on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	JAC 07:00 → MSP 10:27DL 3931 · flown by SkyWest	2h 02m Minneapolis	MSP 12:29 → SLC 14:22DL 2651	7h 22m	98%	88%
United Details →	JAC 08:00 → LAX 09:31UA 2811	3h 24m Los Angeles	LAX 12:55 → SLC 15:48UA 5371 · flown by SkyWest	7h 48m	97%	86%
Alaska Details →	JAC 12:00 → SEA 13:22AS 3363 · flown by SkyWest	3h 25m Seattle	SEA 16:47 → SLC 19:50AS 373	7h 50m	100%	79%
United Details →	JAC 10:35 → DEN 12:30UA 5543 · flown by SkyWest	1h 10m Denver	DEN 13:40 → SLC 15:13UA 1840	4h 38m	94%	77%
United Details →	JAC 07:00 → DEN 08:40UA 1978	3h 00m Denver	DEN 11:40 → SLC 13:13UA 1963	6h 13m	98%	76%
United Details →	JAC 16:23 → DEN 18:00UA 531	3h 05m Denver	DEN 21:05 → SLC 22:44UA 5646 · flown by SkyWest	6h 21m	95%	76%
Alaska Details →	JAC 14:11 → SAN 15:44AS 3484 · flown by SkyWest	3h 05m San Diego	SAN 18:49 → SLC 21:57AS 3017 · flown by SkyWest	7h 46m	94%	69%
United Details →	JAC 13:42 → DEN 15:18UA 1717	2h 27m Denver	DEN 17:45 → SLC 19:25UA 5762 · flown by SkyWest	5h 43m	94%	69%
Tight connection: often missed
United Details →	JAC 16:23 → DEN 18:00UA 531	1h 23m Denver	DEN 19:23 → SLC 20:56UA 2769	4h 33m	70%	37%
American Details →	JAC 16:14 → DFW 20:08AA 883	1h 02m Dallas-Fort Worth	DFW 21:10 → SLC 22:59AA 2993	6h 45m	66%	28%

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

ORD · 1h 05m · leaves 07:30 13%

Afternoon and evening

DEN · 1h 11m · leaves 13:42 14%

DFW · 1h 02m · leaves 16:14 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.


United UA 2811 JAC 08:00 → LAX Delta DL 1194 LAX 11:41 → SLC Connection details →	2h 10m	6h 34m	97%	87%
United UA 2170 JAC 10:35 → DEN Delta DL 1623 DEN 15:55 → SLC Connection details →	3h 42m	7h 00m	100%	83%
United UA 1717 JAC 13:42 → DEN Delta DL 2663 DEN 19:00 → SLC Connection details →	3h 42m	6h 56m	99%	71%

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