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 BZN → SLC flights land within a few points of 9 in 10 on time whatever the hour.

Nonstops


Delta	BZN	SLC	1h 25m	90%	0.5%	1,162	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. Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	BZN 06:03 → SEA 06:57AS 461	1h 51m Seattle	SEA 08:48 → SLC 11:55AS 360	5h 52m	100%	88%
Delta Details →	BZN 06:00 → MSP 09:18DL 1678	3h 11m Minneapolis	MSP 12:29 → SLC 14:22DL 2651	8h 22m	98%	87%
Delta Details →	BZN 08:25 → SEA 09:29DL 4092 · flown by SkyWest	1h 36m Seattle	SEA 11:05 → SLC 14:11DL 1265	5h 46m	96%	81%
Delta Details →	BZN 15:56 → SEA 17:00DL 4174 · flown by SkyWest	2h 50m Seattle	SEA 19:50 → SLC 22:55DL 1239	6h 59m	98%	80%
United Details →	BZN 10:33 → DEN 12:25UA 1824	1h 15m Denver	DEN 13:40 → SLC 15:13UA 1840	4h 40m	94%	80%
Alaska Details →	BZN 15:05 → SEA 16:05AS 286	3h 02m Seattle	SEA 19:07 → SLC 22:14AS 3298 · flown by SkyWest	7h 09m	100%	79%
Delta Details →	BZN 11:27 → MSP 14:45DL 1226	3h 28m Minneapolis	MSP 18:13 → SLC 20:07DL 2607	8h 41m	99%	79%
United Details →	BZN 06:30 → DEN 08:24UA 1362	3h 16m Denver	DEN 11:40 → SLC 13:13UA 1963	6h 43m	99%	78%
Tight connection: often missed
United Details →	BZN 17:51 → DEN 19:58UA 5736 · flown by SkyWest	1h 07m Denver	DEN 21:05 → SLC 22:44UA 5646 · flown by SkyWest	4h 53m	70%	56%
United Details →	BZN 16:29 → DEN 18:23UA 1322	1h 00m Denver	DEN 19:23 → SLC 20:56UA 2769	4h 27m	58%	31%
American Details →	BZN 16:14 → DFW 20:24AA 1647	46m Dallas-Fort Worth	DFW 21:10 → SLC 22:59AA 2993	6h 45m	49%	20%

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

ORD · 46m · leaves 08:00 21%

Afternoon and evening

DEN · 1h 07m · leaves 17:51 30%

LAS · 1h 15m · leaves 19:15 32%

DFW · 46m · leaves 16:14 51%

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.


Alaska AS 461 BZN 06:03 → SEA Delta DL 1016 SEA 09:30 → SLC Connection details →	2h 33m	6h 35m	100%	90%
Southwest WN 1131 BZN 11:15 → DEN Delta DL 1623 DEN 15:55 → SLC Connection details →	3h 00m	6h 20m	100%	83%
Alaska AS 286 BZN 15:05 → SEA Delta DL 1239 SEA 19:50 → SLC Connection details →	3h 45m	7h 50m	100%	81%

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