tailodds FORECAST
Tickets
Any day
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 2297 Alaska flown by Horizon no forecast: 12-month record BIL 15:43 PDX 16:46 6% 4% 1.9% 94%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Portland on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Portland is 1 h behind Billings). Layovers up to 4 hours. Pick a connection for its 12-month details.
DeltaDetails → BIL 06:24 → MSP 09:27DL 2254 1h 24m Minneapolis MSP 10:51 → PDX 12:40DL 1661 7h 16m 98% 91%
DeltaDetails → BIL 05:20 → SLC 06:44DL 1360 1h 01m Salt Lake City SLC 07:45 → PDX 08:36DL 1203 4h 16m 97% 89%
UnitedDetails → BIL 05:00 → DEN 06:53UA 5829 · flown by SkyWest 1h 12m Denver DEN 08:05 → PDX 09:47UA 1247 5h 47m 97% 88%
DeltaDetails → BIL 18:34 → SLC 20:09DL 3828 · flown by SkyWest 1h 36m Salt Lake City SLC 21:45 → PDX 22:38DL 1373 5h 04m 98% 85%
UnitedDetails → BIL 06:58 → DEN 08:51UA 372 2h 25m Denver DEN 11:16 → PDX 12:58UA 644 7h 00m 99% 85%
DeltaDetails → BIL 11:50 → SLC 13:22DL 4038 · flown by SkyWest 1h 55m Salt Lake City SLC 15:17 → PDX 16:09DL 1244 5h 19m 100% 84%
UnitedDetails → BIL 10:40 → DEN 12:32UA 5463 · flown by SkyWest 3h 28m Denver DEN 16:00 → PDX 17:46UA 1337 8h 06m 100% 83%
UnitedDetails → BIL 14:25 → DEN 16:15UA 478 3h 15m Denver DEN 19:30 → PDX 21:15UA 498 7h 50m 99% 80%
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