Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Sun 4:00 PM ET · 3 nonstops

Fri, Oct 9 looks like a normal day here: all 3 nonstops are 19–20% likely to arrive 15+ min late.

Safest bet that day AA 6387 ASE 18:01 → LAX 19:20 · 19% chance 15+ min late · usually 56% on time Riskiest UA 5940 ASE 19:15 → LAX 20:43 · 20% chance 15+ min late · usually 62% on time

Every nonstop on Fri, Oct 9

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.


AA 6387 American flown by SkyWest Flight history →	ASE 18:01	LAX 19:20	19%	15%	9.1%	56%
DL 4133 Delta flown by SkyWest Flight history →	ASE 12:03	LAX 13:24	20%	14%	5.4%	72%
UA 5940 United flown by SkyWest Flight history →	ASE 19:15	LAX 20:43	20%	16%	6.9%	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 Fri, Oct 9 (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