Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Sun 4:00 PM ET · 7 nonstops

Fri, Oct 9 looks like a normal day here: all 2 nonstops are 22–27% likely to arrive 15+ min late.

Safest bet that day AA 6439 CLT 16:15 → TYS 17:37 · 22% chance 15+ min late · usually 71% on time Riskiest AA 5511 CLT 22:40 → TYS 23:51 · 27% chance 15+ min late · usually 44% 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. Dimmed: airlines we don’t forecast yet, shown with their 12-month record if they usually fly that weekday.


AA 6439 American flown by SkyWest Flight history →	CLT 16:15	TYS 17:37	22%	11%	0.8%	71%
AA 5511 American flown by PSA Flight history →	CLT 22:40	TYS 23:51	27%	10%	1.6%	44%
AA 5947 American flown by Piedmont no forecast: 12-month record	CLT 07:12	TYS 08:31	10%	2%	0.0%	90%
AA 5950 American flown by Piedmont no forecast: 12-month record	CLT 09:15	TYS 10:38	12%	6%	0.0%	88%
AA 5831 American flown by Piedmont no forecast: 12-month record	CLT 14:24	TYS 15:42	18%	11%	0.0%	82%
AA 5909 American flown by Piedmont no forecast: 12-month record	CLT 20:35	TYS 21:58	35%	14%	0.0%	65%
AA 5957 American flown by Piedmont no forecast: 12-month record	CLT 18:17	TYS 19:38	45%	12%	3.3%	55%

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