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 → RNO flights land within a few points of 88% on time whatever the hour.

Nonstops


Delta	SLC	RNO	1h 38m	88%	0.2%	1,198	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Alaska Details →	SLC 06:23 → SEA 07:35AS 1444	1h 35m Seattle	SEA 09:10 → RNO 11:03AS 3079 · flown by SkyWest	5h 40m	100%	92%
Delta Details →	SLC 09:40 → LAX 10:42DL 1095	2h 14m Los Angeles	LAX 12:56 → RNO 14:33DL 3902 · flown by SkyWest	5h 53m	99%	89%
Alaska Details →	SLC 11:22 → PDX 12:23AS 2333 · flown by Horizon	2h 38m Portland	PDX 15:01 → RNO 16:30AS 2206 · flown by Horizon	6h 08m	98%	89%
American Details →	SLC 12:15 → PHX 13:02AA 6422 · flown by SkyWest	3h 35m Phoenix	PHX 16:37 → RNO 18:31AA 4053 · flown by Envoy	7h 16m	97%	88%
Delta Details →	SLC 17:10 → LAX 18:10DL 1161	3h 49m Los Angeles	LAX 21:59 → RNO 23:32DL 3929 · flown by SkyWest	7h 22m	99%	87%
United Details →	SLC 07:00 → DEN 08:42UA 1232	2h 38m Denver	DEN 11:20 → RNO 12:39UA 2167	6h 39m	99%	85%
Southwest Details →	SLC 06:25 → LAS 06:50WN 4205	2h 22m Las Vegas	LAS 09:12 → RNO 10:38WN 3179	5h 07m	100%	84%
United Details →	SLC 10:39 → DEN 12:24UA 2004	3h 46m Denver	DEN 16:10 → RNO 17:36UA 1604	7h 57m	100%	83%
Tight connection: often missed
United Details →	SLC 08:30 → DEN 10:27UA 5642 · flown by SkyWest	53m Denver	DEN 11:20 → RNO 12:39UA 2167	5h 09m	73%	63%
United Details →	SLC 20:08 → SFO 21:10UA 2097	1h 35m San Francisco	SFO 22:45 → RNO 23:58UA 1757	4h 50m	38%	24%
United Details →	SLC 09:49 → SFO 11:13UA 5970 · flown by SkyWest	59m San Francisco	SFO 12:12 → RNO 13:28UA 5707 · flown by SkyWest	4h 39m	35%	22%

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

DFW · 1h 11m · leaves 07:00 12%

PHX · 55m · leaves 06:15 12%

SFO · 54m · leaves 06:05 12%

Afternoon and evening

DEN · 1h 20m · leaves 17:57 20%

LAS · 1h 20m · leaves 20:30 36%

PHX · 1h 01m · leaves 18:50 46%

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 3746 SLC 11:20 → LAX United UA 5722 LAX 16:12 → RNO Connection details →	3h 57m	7h 26m	100%	90%
United UA 5408 SLC 07:45 → LAX Delta DL 3902 LAX 12:56 → RNO Connection details →	3h 41m	7h 48m	98%	88%
Delta DL 1209 SLC 11:15 → PDX Alaska AS 2206 PDX 15:01 → RNO Connection details →	2h 51m	6h 15m	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