tailodds FORECAST
Tickets
Any day
Tuesday, October 6 · our forecast odds · issued Mon 4:00 AM ET · connections flying that day

Tomorrow: 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.
DeltaDetails → PDX 09:45 → SLC 12:33DL 1203 3h 52m Salt Lake City SLC 16:25 → BIL 17:52DL 3828 · flown by SkyWest 7h 07m 100% 95%
UnitedDetails → PDX 05:00 → DEN 08:31UA 459 3h 14m Denver DEN 11:45 → BIL 13:22UA 703 7h 22m 99% 90%
UnitedDetails → PDX 08:50 → DEN 12:24UA 2375 3h 11m Denver DEN 15:35 → BIL 17:19UA 5498 · flown by SkyWest 7h 29m 98% 89%
UnitedDetails → PDX 16:15 → DEN 19:51UA 1787 1h 19m Denver DEN 21:10 → BIL 22:54UA 5257 · flown by SkyWest 5h 39m 94% 87%
DeltaDetails → PDX 17:14 → SLC 20:06DL 1244 1h 19m Salt Lake City SLC 21:25 → BIL 22:50DL 1340 4h 36m 96% 86%
AlaskaDetails → PDX 05:00 → SEA 05:53AS 2431 · flown by Horizon 2h 15m Seattle SEA 08:08 → BIL 11:05AS 2337 · flown by Horizon 5h 05m 100% 86%
UnitedDetails → PDX 12:50 → DEN 16:28UA 1411 3h 12m Denver DEN 19:40 → BIL 21:17UA 1417 7h 27m 99% 85%
AlaskaDetails → PDX 06:19 → SEA 07:17AS 499 2h 52m Seattle SEA 10:09 → BIL 13:05AS 2054 · flown by Horizon 5h 46m 99% 80%
Tight connection: often missed
AlaskaDetails → PDX 06:19 → SEA 07:17AS 499 51m Seattle SEA 08:08 → BIL 11:05AS 2337 · flown by Horizon 3h 46m 71% 62%
How these are worked out. Each flight’s odds are our forecast for that day; 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 Tue, Oct 6 (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