Saturday, October 10 · typical odds for a Saturday (too early for a weather forecast) · issued Sun 8:00 PM ET · 5 nonstops

Sat, Oct 10 looks like a normal day here: all 5 nonstops are 5–14% likely to arrive 15+ min late.

Safest bet that day WN 958 GEG 06:50 → DEN 10:18 · 5% chance 15+ min late Riskiest UA 1255 GEG 13:41 → DEN 16:57 · 14% chance 15+ min late · usually 80% on time

Every nonstop on Sat, Oct 10

12-month record →

Ranked by the chance of arriving 15+ minutes late (typical odds: the weather this date has had in past years), with each flight’s on-time record over Aug 2025 – Jul 2026 beside it. Times are local. Pick a flight for its forecast. Click a column to sort.


WN 958 Southwest	GEG 06:50	DEN 10:18	5%	1%	0.6%	no record
UA 1234 United Flight history →	GEG 05:00	DEN 08:20	5%	2%	0.6%	96%
OO 5587 SkyWest	GEG 16:08	DEN 19:48	9%	4%	0.6%	no record
WN 590 Southwest	GEG 12:55	DEN 16:18	12%	3%	0.6%	no record
UA 1255 United Flight history →	GEG 13:41	DEN 16:57	14%	4%	0.6%	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