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

Nonstops


Delta	SLC	BZN	1h 23m	89%	0.5%	1,162	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Bozeman on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


United Details →	SLC 05:15 → DEN 06:54UA 5683 · flown by SkyWest	59m Denver	DEN 07:53 → BZN 09:37UA 348	4h 22m	95%	88%
Alaska Details →	SLC 08:20 → PDX 09:26AS 3004 · flown by SkyWest	1h 04m Portland	PDX 10:30 → BZN 13:10AS 2022 · flown by Horizon	4h 50m	97%	88%
Delta Details →	SLC 08:00 → MSP 11:32DL 2916	1h 45m Minneapolis	MSP 13:17 → BZN 14:48DL 2946	6h 50m	98%	86%
United Details →	SLC 07:00 → DEN 08:42UA 1232	2h 50m Denver	DEN 11:32 → BZN 13:20UA 1248	6h 20m	99%	85%
Delta Details →	SLC 15:14 → SEA 16:30DL 2817	3h 29m Seattle	SEA 19:59 → BZN 22:48DL 4039 · flown by SkyWest	7h 34m	100%	84%
United Details →	SLC 08:30 → DEN 10:27UA 5642 · flown by SkyWest	3h 17m Denver	DEN 13:44 → BZN 15:33UA 513	7h 03m	98%	83%
Delta Details →	SLC 07:50 → SEA 09:05DL 2874	2h 40m Seattle	SEA 11:45 → BZN 14:35DL 4104 · flown by SkyWest	6h 50m	99%	83%
United Details →	SLC 14:28 → DEN 16:11UA 1662	3h 14m Denver	DEN 19:25 → BZN 21:14UA 1347	6h 46m	97%	77%
Tight connection: often missed
Alaska Details →	SLC 09:10 → SEA 10:35AS 3381 · flown by SkyWest	54m Seattle	SEA 11:29 → BZN 14:09AS 285	4h 59m	43%	31%
Southwest Details →	SLC 20:30 → LAS 20:55WN 3745	50m Las Vegas	LAS 21:45 → BZN 00:45 +1WN 4336	4h 17m	46%	31%
United Details →	SLC 09:49 → SFO 11:13UA 5970 · flown by SkyWest	47m San Francisco	SFO 12:00 → BZN 15:21UA 562	5h 32m	27%	17%

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 04m · leaves 08:20 3%

DEN · 59m · leaves 05:15 5%

PHX · 58m · leaves 07:13 10%

Afternoon and evening

LAS · 50m · leaves 20:30 54%

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 1095 SLC 09:40 → LAX United UA 2212 LAX 12:50 → BZN Connection details →	2h 08m	6h 44m	95%	86%
Southwest WN 3738 SLC 07:45 → DEN United UA 1248 DEN 11:32 → BZN Connection details →	2h 17m	5h 35m	98%	85%
Frontier F9 3862 SLC 08:16 → DEN United UA 513 DEN 13:44 → BZN Connection details →	3h 43m	7h 17m	99%	84%

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