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 15% of the time at 5 pm.

Nonstops


Delta	SLC	PHX	1h 44m	89%	0.5%	1,725	Flying now
American	SLC	PHX	1h 49m	86%	0.3%	1,492	Flying now
Frontier	SLC	PHX	1h 46m	83%	1.4%	697	Flying now
Southwest	SLC	PHX	1h 40m	80%	0.4%	1,861	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	SLC 16:42 → LAX 17:53UA 5456 · flown by SkyWest	3h 29m Los Angeles	LAX 21:22 → PHX 22:59UA 5458 · flown by SkyWest	7h 17m	100%	93%
Southwest Details →	SLC 06:25 → LAS 06:50WN 4205	1h 05m Las Vegas	LAS 07:55 → PHX 09:15WN 209	3h 50m	100%	91%
Southwest Details →	SLC 05:45 → SMF 06:25WN 4981	1h 20m Sacramento	SMF 07:45 → PHX 09:35WN 106	4h 50m	98%	90%
Delta Details →	SLC 09:40 → LAX 10:42DL 1095	3h 06m Los Angeles	LAX 13:48 → PHX 15:21DL 3894 · flown by SkyWest	6h 43m	100%	87%
Alaska Details →	SLC 08:20 → PDX 09:26AS 3004 · flown by SkyWest	1h 04m Portland	PDX 10:30 → PHX 13:20AS 716	6h 00m	97%	87%
Southwest Details →	SLC 05:42 → DEN 07:08WN 3737	1h 32m Denver	DEN 08:40 → PHX 09:35WN 431	4h 53m	98%	86%
United Details →	SLC 07:00 → DEN 08:42UA 1232	2h 43m Denver	DEN 11:25 → PHX 12:25UA 1686	6h 25m	99%	86%
United Details →	SLC 05:15 → DEN 06:54UA 5683 · flown by SkyWest	1h 06m Denver	DEN 08:00 → PHX 09:00UA 1481	4h 45m	96%	81%
Tight connection: often missed
Delta Details →	SLC 20:40 → LAX 21:45DL 1142	50m Los Angeles	LAX 22:35 → PHX 00:10 +1DL 3827 · flown by SkyWest	4h 30m	69%	60%
American Details →	SLC 16:42 → DFW 20:30AA 2594	59m Dallas-Fort Worth	DFW 21:29 → PHX 22:06AA 3239	6h 25m	40%	21%
Southwest Details →	SLC 12:55 → SAN 13:50WN 3754	55m San Diego	SAN 14:45 → PHX 16:10WN 3525	4h 15m	40%	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

LAS · 1h 05m · leaves 06:25 0%

SMF · 1h 20m · leaves 05:45 2%

PDX · 1h 04m · leaves 08:20 3%

Afternoon and evening

LAX · 50m · leaves 20:40 31%

DEN · 1h 03m · leaves 19:35 35%

DFW · 59m · leaves 16:42 60%

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 829 SLC 11:30 → LAX United UA 5457 LAX 16:22 → PHX Connection details →	3h 52m	7h 29m	99%	97%
Delta DL 1095 SLC 09:40 → LAX United UA 5450 LAX 13:05 → PHX Connection details →	2h 23m	6h 02m	98%	95%
Delta DL 1442 SLC 11:00 → BOI Alaska AS 3095 BOI 14:55 → PHX Connection details →	2h 40m	6h 14m	98%	94%

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