Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · connections flying that day

Sun, Oct 11: no forecasts for this route’s flights; their 12-month records are below.

Nonstops that day

All 1 nonstop →


AS 2022 Alaska flown by Horizon no forecast: 12-month record	PDX 10:30	BZN 13:10	10%	2%	0.0%	90%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Bozeman on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Bozeman is 1 h ahead of Portland). Layovers up to 4 hours. Pick a connection for its 12-month details.


Alaska Details →	PDX 05:00 → SEA 05:53AS 2431 · flown by Horizon	1h 13m Seattle	SEA 07:06 → BZN 09:46AS 2141 · flown by Horizon	3h 46m	96%	88%
Delta Details →	PDX 05:45 → SLC 08:33DL 1270	1h 22m Salt Lake City	SLC 09:55 → BZN 11:17DL 1971	4h 32m	99%	83%
Delta Details →	PDX 17:14 → SLC 20:06DL 1244	2h 59m Salt Lake City	SLC 23:05 → BZN 00:23 +1DL 2046	6h 09m	99%	76%
Delta Details →	PDX 15:30 → SEA 16:38DL 4062 · flown by SkyWest	3h 21m Seattle	SEA 19:59 → BZN 22:49DL 4039 · flown by SkyWest	6h 19m	98%	75%
United Details →	PDX 08:50 → DEN 12:25UA 2375	1h 19m Denver	DEN 13:44 → BZN 15:33UA 513	5h 43m	95%	75%
Delta Details →	PDX 13:15 → SLC 16:07DL 1209	1h 13m Salt Lake City	SLC 17:20 → BZN 18:44DL 3676 · flown by SkyWest	4h 29m	94%	72%
United Details →	PDX 07:00 → SFO 08:55UA 2818	3h 05m San Francisco	SFO 12:00 → BZN 15:21UA 562	7h 21m	99%	69%
United Details →	PDX 12:50 → DEN 16:28UA 1411	2h 57m Denver	DEN 19:25 → BZN 21:14UA 1347	7h 24m	96%	62%

How these are worked out. Each flight’s odds are our forecast for that day (typical odds until the weather forecast covers it); flights of airlines we don’t forecast yet use their 12-month record and are marked. Makes the connection: the first flight’s 12-month lateness curve, scaled so its chance of arriving 15+ min late matches the day’s forecast, at the layover minus the 45-minute minimum (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled × second flight within 15 minutes, each from the day’s forecast.

About this data: forecast odds from our model for Sun, Oct 11 (newest published update); 12-month records from US DOT on-time data, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. JSON