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 90-minute layover misses 2% of the time at 8 am and 31% of the time at 4 pm.

Nonstops


United	LAX	SLC	1h 56m	90%	0.0%	669	Flying now
Delta	LAX	SLC	1h 55m	89%	0.4%	2,452	Flying now
Frontier	LAX	SLC	1h 59m	85%	1.3%	470	Flying now
Southwest	LAX	SLC	1h 50m	81%	0.5%	374	Flying now
American	LAX	SLC	2h 01m	88%	0.0%	201	Not flying now
Spirit	LAX	SLC	1h 50m	91%few flights	4.3%	23	Not 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 (Salt Lake City is 1 h ahead of Los Angeles). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	LAX 05:05 → PHX 06:30WN 116	1h 15m Phoenix	PHX 07:45 → SLC 10:25WN 3339	4h 20m	100%	96%
Delta Details →	LAX 12:57 → SJC 14:19DL 3842 · flown by SkyWest	2h 42m San Jose	SJC 17:01 → SLC 19:57DL 1260	6h 00m	99%	93%
Delta Details →	LAX 09:22 → SJC 10:43DL 2965	2h 57m San Jose	SJC 13:40 → SLC 16:33DL 1254	6h 14m	100%	91%
Alaska Details →	LAX 07:00 → PDX 09:21AS 668	1h 34m Portland	PDX 10:55 → SLC 13:59AS 3112 · flown by SkyWest	5h 59m	98%	90%
United Details →	LAX 06:00 → SFO 07:35UA 2647	1h 05m San Francisco	SFO 08:40 → SLC 11:49UA 5605 · flown by SkyWest	4h 49m	96%	90%
Delta Details →	LAX 08:20 → RNO 09:53DL 4099 · flown by SkyWest	3h 22m Reno	RNO 13:15 → SLC 15:46DL 1595	6h 26m	100%	90%
Delta Details →	LAX 15:00 → ABQ 18:05DL 4091 · flown by SkyWest	1h 54m Albuquerque	ABQ 19:59 → SLC 21:50DL 3726 · flown by SkyWest	5h 50m	95%	89%
Delta Details →	LAX 12:56 → RNO 14:33DL 3902 · flown by SkyWest	3h 12m Reno	RNO 17:45 → SLC 20:21DL 3732 · flown by SkyWest	6h 25m	99%	88%
Tight connection: often missed
Delta Details →	LAX 14:25 → SFO 15:44DL 2267	1h 23m San Francisco	SFO 17:07 → SLC 20:02DL 1088	4h 38m	69%	48%
American Details →	LAX 16:16 → DFW 21:33AA 2024	1h 19m Dallas-Fort Worth	DFW 22:52 → SLC 00:36 +1AA 2378	7h 20m	66%	28%
American Details →	LAX 15:00 → DFW 20:18AA 2994	52m Dallas-Fort Worth	DFW 21:10 → SLC 22:59AA 2993	6h 59m	55%	23%

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 05m · leaves 06:00 4%

SEA · 1h 02m · leaves 07:10 7%

DEN · 1h 11m · leaves 07:00 7%

Afternoon and evening

SEA · 1h 14m · leaves 12:47 17%

DFW · 52m · leaves 15:00 45%

DEN · 1h 15m · leaves 16:20 56%

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.


Frontier F9 4499 LAX 09:18 → PDX Alaska AS 3120 PDX 14:30 → SLC Connection details →	2h 49m	7h 11m	100%	96%
United UA 5460 LAX 08:15 → SBA Delta DL 3841 SBA 12:45 → SLC Connection details →	3h 28m	6h 37m	99%	95%
Southwest WN 116 LAX 05:05 → PHX Delta DL 1447 PHX 09:45 → SLC Connection details →	3h 15m	6h 18m	100%	93%

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