Sun, Oct 4 has passed, so this is the 12-month record.

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 one-hour layover misses 4% of the time at 7 am and 2 times in 5 at 6 pm.

Nonstops (seasonal or thin)


Alaska	BZN	PDX	1h 50m	87%	1.1%	465	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Alaska Details →	BZN 06:03 → SEA 06:57AS 461	3h 17m Seattle	SEA 10:14 → PDX 11:21AS 3090 · flown by SkyWest	6h 18m	100%	96%
Alaska Details →	BZN 10:26 → SEA 11:23AS 2141 · flown by Horizon	2h 22m Seattle	SEA 13:45 → PDX 14:48AS 3204 · flown by SkyWest	5h 22m	99%	86%
Delta Details →	BZN 15:56 → SEA 17:00DL 4174 · flown by SkyWest	3h 59m Seattle	SEA 20:59 → PDX 22:02DL 3913 · flown by SkyWest	7h 06m	100%	85%
Delta Details →	BZN 19:30 → SLC 20:55DL 3676 · flown by SkyWest	1h 55m Salt Lake City	SLC 22:50 → PDX 23:44DL 1373	5h 15m	96%	85%
Delta Details →	BZN 06:00 → MSP 09:18DL 1678	1h 42m Minneapolis	MSP 11:00 → PDX 12:40DL 2167	7h 40m	98%	84%
Delta Details →	BZN 12:13 → SLC 13:39DL 1971	1h 45m Salt Lake City	SLC 15:24 → PDX 16:19DL 1244	5h 06m	96%	84%
United Details →	BZN 10:33 → DEN 12:25UA 1824	3h 35m Denver	DEN 16:00 → PDX 17:46UA 1337	8h 13m	99%	83%
United Details →	BZN 06:30 → DEN 08:24UA 1362	3h 03m Denver	DEN 11:27 → PDX 13:09UA 644	7h 39m	99%	83%
Tight connection: often missed
United Details →	BZN 16:17 → SFO 17:50UA 1702	1h 06m San Francisco	SFO 18:56 → PDX 20:54UA 2262	5h 37m	59%	49%
United Details →	BZN 16:29 → DEN 18:23UA 1322	1h 07m Denver	DEN 19:30 → PDX 21:15UA 498	5h 46m	58%	46%
American Details →	BZN 11:39 → DFW 15:45AA 1653	52m Dallas-Fort Worth	DFW 16:37 → PDX 18:41AA 685	8h 02m	74%	37%

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

SLC · 1h 09m · leaves 05:15 4%

SEA · 1h 06m · leaves 08:25 7%

Afternoon and evening

DFW · 52m · leaves 11:39 26%

SFO · 1h 06m · leaves 16:17 41%

DEN · 1h 05m · leaves 16:30 53%

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 3818 SEA 09:30 → PDX Connection details →	2h 33m	5h 36m	100%	90%
Delta DL 491 BZN 05:15 → SLC Alaska AS 3004 SLC 08:20 → PDX Connection details →	1h 44m	5h 11m	95%	89%
Southwest WN 1130 BZN 06:35 → DEN Alaska AS 684 DEN 12:02 → PDX Connection details →	3h 52m	8h 11m	100%	88%

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