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

Mon, Oct 12: AA 5160 at 06:00 is the safest bet, 13% chance of being 15+ min late; the others run 27–34%.

Safest bet that day AA 5160 MHT 06:00 → DCA 07:55 · 13% chance 15+ min late · usually 85% on time Riskiest OH 5179 MHT 17:21 → DCA 19:20 · 34% chance 15+ min late

Every nonstop on Mon, Oct 12

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 5160 American flown by PSA Flight history →	MHT 06:00	DCA 07:55	13%	5%	2.4%	85%
AA 5150 American flown by PSA Flight history →	MHT 12:15	DCA 14:16	27%	12%	1.9%	68%
OH 5179 PSA	MHT 17:21	DCA 19:20	34%	16%	2.8%	no record

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 Mon, Oct 12 (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