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

No clear winner: Southwest’s HOU → SLC flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops (seasonal or thin)


Southwest	HOU	SLC	3h 15m	81%	0.5%	409	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Southwest + Deltatwo ticketsDetails →	HOU 07:35 → OAK 09:30WN 2056	3h 03m Oakland	OAK 12:33 → SLC 15:29DL 4134 · flown by SkyWest	8h 54m	100%	93%
Southwest + Deltatwo ticketsDetails →	HOU 07:35 → ABQ 08:40WN 1943	3h 45m Albuquerque	ABQ 12:25 → SLC 14:16DL 4084 · flown by SkyWest	7h 41m	97%	91%
Southwest + Unitedtwo ticketsDetails →	HOU 07:30 → LAX 08:55WN 2007	4h 00m Los Angeles	LAX 12:55 → SLC 15:48UA 5371 · flown by SkyWest	9h 18m	100%	89%
Southwest Details →	HOU 05:30 → LAS 06:30WN 2251	1h 05m Las Vegas	LAS 07:35 → SLC 10:00WN 2957	5h 30m	97%	89%
Southwest + Deltatwo ticketsDetails →	HOU 06:20 → PHX 06:55WN 2062	2h 50m Phoenix	PHX 09:45 → SLC 12:23DL 1447	7h 03m	98%	89%
Southwest + Deltatwo ticketsDetails →	HOU 05:50 → ATL 08:50WN 2622	3h 04m Atlanta	ATL 11:54 → SLC 13:50DL 663	9h 00m	100%	87%
Southwest + Deltatwo ticketsDetails →	HOU 07:50 → OMA 10:00WN 2060	2h 39m Omaha	OMA 12:39 → SLC 14:24DL 3815 · flown by SkyWest	7h 34m	93%	86%
Southwest + Deltatwo ticketsDetails →	HOU 07:45 → LGB 09:00WN 2019	4h 00m Long Beach	LGB 13:00 → SLC 15:51DL 1116	9h 06m	100%	86%
Tight connection: often missed
American Details →	HOU 16:14 → DFW 17:38AA 5002 · flown by SkyWest	1h 10m Dallas-Fort Worth	DFW 18:48 → SLC 20:34AA 558	5h 20m	62%	29%
American Details →	HOU 18:49 → DFW 20:15AA 6385 · flown by SkyWest	55m Dallas-Fort Worth	DFW 21:10 → SLC 22:59AA 2993	5h 10m	52%	21%
Southwest Details →	HOU 17:55 → DEN 19:40WN 1974	1h 15m Denver	DEN 20:55 → SLC 22:40WN 1737	5h 40m	39%	16%

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

LAX · 1h 20m · leaves 07:30 2%

DEN · 50m · leaves 05:30 9%

ATL · 1h 00m · leaves 06:00 10%

Afternoon and evening

DFW · 55m · leaves 18:49 48%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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