Saturday, October 10 · typical odds for a Saturday (too early for a weather forecast) · issued Sun 8:00 PM ET · connections flying that day

Sat, Oct 10: no forecasts for this route’s flights; their 12-month records are below.

Nonstops that day

All 1 nonstop →


AS 2368 Alaska flown by Horizon no forecast: 12-month record	PDX 12:13	BIL 15:03	4%	2%	1.9%	96%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	PDX 08:50 → DEN 12:24UA 2375	3h 11m Denver	DEN 15:35 → BIL 17:19UA 5498 · flown by SkyWest	7h 29m	98%	84%
United Details →	PDX 05:00 → DEN 08:31UA 459	3h 14m Denver	DEN 11:45 → BIL 13:22UA 703	7h 22m	99%	84%
United Details →	PDX 16:15 → DEN 19:51UA 1787	1h 19m Denver	DEN 21:10 → BIL 22:54UA 5257 · flown by SkyWest	5h 39m	94%	83%
Delta Details →	PDX 17:14 → SLC 20:06DL 1244	1h 24m Salt Lake City	SLC 21:30 → BIL 22:53DL 1340	4h 39m	95%	80%
Alaska Details →	PDX 06:19 → SEA 07:17AS 499	2h 52m Seattle	SEA 10:09 → BIL 13:05AS 2054 · flown by Horizon	5h 46m	100%	79%
Alaska Details →	PDX 12:32 → SEA 13:34AS 3038 · flown by SkyWest	2h 15m Seattle	SEA 15:49 → BIL 18:42AS 2353 · flown by Horizon	5h 10m	96%	79%
United Details →	PDX 12:50 → DEN 16:28UA 1411	2h 37m Denver	DEN 19:05 → BIL 20:42UA 1417	6h 52m	97%	77%

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 Sat, Oct 10 (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