Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · 3 nonstops

Sun, Oct 11 looks like a normal day here: all 3 nonstops are 17–25% likely to arrive 15+ min late.

Safest bet that day OH 5143 DCA 11:49 → HSV 12:57 · 17% chance 15+ min late Riskiest AA 5557 DCA 19:59 → HSV 21:10 · 25% chance 15+ min late · usually 68% on time

Every nonstop on Sun, Oct 11

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.


OH 5143 PSA	DCA 11:49	HSV 12:57	17%	9%	1.0%	no record
MQ 4249 Envoy	DCA 16:58	HSV 18:02	25%	11%	2.4%	no record
AA 5557 American flown by PSA Flight history →	DCA 19:59	HSV 21:10	25%	16%	2.4%	68%

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 Sun, Oct 11 (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