Thursday, October 8 · typical odds for a Thursday (too early for a weather forecast) · issued Sun 12:00 PM ET · 4 nonstops

Thu, Oct 8: WN 1493 at 06:56 is the safest bet, 4% chance of being 15+ min late; the others run 17–23%.

Safest bet that day WN 1493 DCA 06:56 → MKE 08:01 · 4% chance 15+ min late Riskiest AA 5656 DCA 15:36 → MKE 16:43 · 23% chance 15+ min late · usually 66% on time

Every nonstop on Thu, Oct 8

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.


WN 1493 Southwest	DCA 06:56	MKE 08:01	4%	1%	0.8%	no record
WN 1229 Southwest	DCA 15:11	MKE 16:18	17%	5%	0.7%	no record
AA 5080 American flown by PSA Flight history →	DCA 21:00	MKE 22:14	19%	9%	1.8%	89%
AA 5656 American flown by PSA Flight history →	DCA 15:36	MKE 16:43	23%	9%	1.6%	66%

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 Thu, Oct 8 (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