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

Connect in the morning. The same one-hour layover misses 4% of the time at 7 am and 27% of the time at 5 pm.

Nonstops


Delta	SLC	LAS	1h 27m	81%	0.6%	1,720	Flying now
Frontier	SLC	LAS	1h 35m	79%	1.3%	528	Flying now
Southwest	SLC	LAS	1h 30m	78%	0.4%	1,444	Flying now
Spirit	SLC	LAS	1h 35m	74%	3.8%	52	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	SLC 05:15 → DEN 06:54UA 5683 · flown by SkyWest	1h 11m Denver	DEN 08:05 → LAS 09:07UA 2316	4h 52m	96%	90%
American Details →	SLC 07:13 → PHX 07:57AA 6327 · flown by SkyWest	2h 27m Phoenix	PHX 10:24 → LAS 11:37AA 2037	5h 24m	98%	88%
Delta Details →	SLC 08:00 → SNA 08:57DL 1198	1h 48m Santa Ana	SNA 10:45 → LAS 12:02DL 4078 · flown by SkyWest	5h 02m	98%	85%
Alaska Details →	SLC 08:20 → PDX 09:26AS 3004 · flown by SkyWest	1h 19m Portland	PDX 10:45 → LAS 13:11AS 757	5h 51m	100%	84%
United Details →	SLC 07:45 → LAX 09:15UA 5408 · flown by SkyWest	3h 57m Los Angeles	LAX 13:12 → LAS 14:34UA 2741	7h 49m	99%	82%
Southwest Details →	SLC 07:45 → DEN 09:15WN 3738	1h 45m Denver	DEN 11:00 → LAS 11:55WN 1561	5h 10m	98%	82%
United Details →	SLC 07:00 → DEN 08:42UA 1232	2h 40m Denver	DEN 11:22 → LAS 12:24UA 526	6h 24m	99%	81%
Delta Details →	SLC 15:15 → SNA 16:11DL 1277	3h 57m Santa Ana	SNA 20:08 → LAS 21:26DL 4179 · flown by SkyWest	7h 11m	100%	81%
Tight connection: often missed
Alaska Details →	SLC 16:00 → SEA 17:16AS 734	1h 05m Seattle	SEA 18:21 → LAS 21:00AS 478	6h 00m	73%	53%
Alaska Details →	SLC 09:10 → SEA 10:35AS 3381 · flown by SkyWest	56m Seattle	SEA 11:31 → LAS 14:16AS 738	6h 06m	47%	38%
United Details →	SLC 09:49 → SFO 11:13UA 5970 · flown by SkyWest	47m San Francisco	SFO 12:00 → LAS 13:50UA 2449	5h 01m	27%	18%

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

PDX · 1h 19m · leaves 08:20 0%

DEN · 1h 11m · leaves 05:15 4%

IAH · 58m · leaves 06:45 7%

Afternoon and evening

DFW · 1h 04m · leaves 16:42 50%

AUS · 1h 05m · leaves 17:30 50%

DEN · 50m · leaves 19:35 55%

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 3719 SLC 07:45 → RNO Southwest WN 4133 RNO 10:40 → LAS Connection details →	2h 15m	5h 20m	100%	95%
Southwest WN 3751 SLC 06:15 → PHX American AA 2037 PHX 10:24 → LAS Connection details →	3h 29m	6h 22m	98%	89%
Alaska AS 3019 SLC 18:06 → SAN Southwest WN 3510 SAN 22:40 → LAS Connection details →	3h 24m	7h 06m	97%	88%

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