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: AA 5528 at 09:59 is the safest bet, 19% chance of being 15+ min late; the others run 19–30%.

Safest bet that day AA 5528 DCA 09:59 → PWM 11:50 · 19% chance 15+ min late · usually 81% on time Riskiest AA 2978 DCA 22:15 → PWM 00:05 · 30% chance 15+ min late · usually 60% 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.


AA 5528 American flown by PSA Flight history →	DCA 09:59	PWM 11:50	19%	5%	1.4%	81%
AA 1423 American Flight history →	DCA 14:51	PWM 16:44	19%	8%	0.8%	87%
AA 2978 American Flight history →	DCA 22:15	PWM 00:05	30%	11%	1.1%	60%

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