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 SLC → FAT flights land within a few points of 94% on time whatever the hour.

Nonstops


Delta	SLC	FAT	1h 54m	94%	0.5%	1,366	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	SLC 06:25 → LAS 06:50WN 4205	2h 45m Las Vegas	LAS 09:35 → FAT 10:55WN 1423	5h 30m	100%	90%
United Details →	SLC 07:00 → DEN 08:42UA 1232	2h 47m Denver	DEN 11:29 → FAT 13:14UA 5655 · flown by SkyWest	7h 14m	99%	90%
American Details →	SLC 07:13 → PHX 07:57AA 6327 · flown by SkyWest	2h 24m Phoenix	PHX 10:21 → FAT 12:01AA 1831	5h 48m	98%	88%
American Details →	SLC 12:15 → PHX 13:02AA 6422 · flown by SkyWest	1h 24m Phoenix	PHX 14:26 → FAT 16:08AA 4091 · flown by Envoy	4h 54m	94%	84%
United Details →	SLC 13:05 → DEN 14:51UA 4720 · flown by SkyWest	1h 06m Denver	DEN 15:57 → FAT 17:42UA 4806 · flown by SkyWest	5h 37m	93%	82%
Alaska Details →	SLC 11:22 → PDX 12:23AS 2333 · flown by Horizon	2h 45m Portland	PDX 15:08 → FAT 17:05AS 3285 · flown by SkyWest	6h 43m	100%	81%
United Details →	SLC 06:05 → SFO 07:19UA 4763 · flown by SkyWest	1h 01m San Francisco	SFO 08:20 → FAT 09:39UA 5942 · flown by SkyWest	4h 34m	92%	79%
Alaska Details →	SLC 06:23 → SEA 07:35AS 1444	2h 38m Seattle	SEA 10:13 → FAT 12:31AS 383	7h 08m	100%	78%
Tight connection: often missed
Southwest Details →	SLC 20:30 → LAS 20:55WN 3745	1h 00m Las Vegas	LAS 21:55 → FAT 23:10WN 4586	3h 40m	58%	37%

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 · 1h 01m · leaves 06:05 8%

DFW · 1h 05m · leaves 08:00 11%

LAX · 55m · leaves 07:45 14%

Afternoon and evening

LAS · 1h 00m · leaves 20:30 42%

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.


Southwest WN 3738 SLC 07:45 → DEN United UA 5655 DEN 11:29 → FAT Connection details →	2h 14m	6h 29m	98%	90%
Southwest WN 3751 SLC 06:15 → PHX American AA 1831 PHX 10:21 → FAT Connection details →	3h 26m	6h 46m	98%	89%
Southwest WN 1478 SLC 12:20 → DEN United UA 4806 DEN 15:57 → FAT Connection details →	2h 07m	6h 22m	97%	86%

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