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 → RDM flights land within a few points of 94% on time whatever the hour.

Nonstops (seasonal or thin)


Delta	SLC	RDM	1h 55m	94%	0.4%	729	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Alaska Details →	SLC 08:20 → PDX 09:26AS 3004 · flown by SkyWest	1h 19m Portland	PDX 10:45 → RDM 11:47AS 3073 · flown by SkyWest	4h 27m	100%	95%
United Details →	SLC 16:42 → LAX 17:53UA 5456 · flown by SkyWest	3h 27m Los Angeles	LAX 21:20 → RDM 23:35UA 5662 · flown by SkyWest	7h 53m	100%	90%
United Details →	SLC 06:05 → SFO 07:19UA 4763 · flown by SkyWest	3h 09m San Francisco	SFO 10:28 → RDM 12:12UA 2153	7h 07m	99%	90%
Delta Details →	SLC 07:50 → SEA 09:05DL 2874	2h 14m Seattle	SEA 11:19 → RDM 12:45DL 3735 · flown by SkyWest	5h 55m	99%	87%
Delta Details →	SLC 17:20 → SEA 18:36DL 871	2h 59m Seattle	SEA 21:35 → RDM 22:58DL 4047 · flown by SkyWest	6h 38m	98%	87%
Delta Details →	SLC 13:20 → SEA 14:40DL 2921	2h 46m Seattle	SEA 17:26 → RDM 18:45DL 4141 · flown by SkyWest	6h 25m	99%	86%
Alaska Details →	SLC 18:44 → SEA 20:00AS 665	2h 53m Seattle	SEA 22:53 → RDM 23:59AS 2094 · flown by Horizon	6h 15m	95%	82%
Alaska Details →	SLC 16:00 → SEA 17:16AS 734	2h 34m Seattle	SEA 19:50 → RDM 21:02AS 3027 · flown by SkyWest	6h 02m	99%	79%
Tight connection: often missed
Delta Details →	SLC 15:14 → SEA 16:30DL 2817	56m Seattle	SEA 17:26 → RDM 18:45DL 4141 · flown by SkyWest	4h 31m	72%	63%
United Details →	SLC 08:30 → DEN 10:27UA 5642 · flown by SkyWest	48m Denver	DEN 11:15 → RDM 12:53UA 2082	5h 23m	64%	47%
American Details →	SLC 18:50 → PHX 19:37AA 4928 · flown by SkyWest	49m Phoenix	PHX 20:26 → RDM 22:59AA 3597 · flown by Envoy	5h 09m	48%	38%

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%

SAN · 1h 15m · leaves 07:40 4%

DEN · 48m · leaves 08:30 36%

Afternoon and evening

PDX · 1h 12m · leaves 19:39 13%

SEA · 56m · leaves 15:14 28%

PHX · 49m · leaves 18:50 52%

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 1209 SLC 11:15 → PDX Alaska AS 2173 PDX 14:30 → RDM Connection details →	2h 20m	5h 05m	96%	91%
Alaska AS 1444 SLC 06:23 → SEA Delta DL 3735 SEA 11:19 → RDM Connection details →	3h 44m	7h 22m	100%	88%
Delta DL 1161 SLC 17:10 → LAX United UA 5662 LAX 21:20 → RDM Connection details →	3h 10m	7h 25m	97%	87%

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