Wednesday, October 7 · our forecast odds · issued Mon 7:00 AM ET · 6 nonstops

Wed, Oct 7: WN 1989 at 07:24 is the safest bet, 5% chance of being 15+ min late; evening flights run 11–15%.

Safest bet that day WN 1989 HOU 07:24 → PHX 08:11 · 5% chance 15+ min late Riskiest WN 1992 HOU 18:08 → PHX 18:54 · 15% chance 15+ min late

Against a calm day 9% average chance a nonstop arrives 15+ min late; 9% for the same flights on a calm-weather day

Every nonstop on Wed, Oct 7

12-month record →

Ranked by the chance of arriving 15+ minutes late, 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 1989 Southwest	HOU 07:24	PHX 08:11	5%	1%	0.6%	no record
WN 380 Southwest	HOU 09:44	PHX 10:32	6%	1%	0.6%	no record
WN 4210 Southwest	HOU 11:10	PHX 11:56	7%	2%	0.6%	no record
WN 4095 Southwest	HOU 13:10	PHX 13:58	10%	2%	0.6%	no record
WN 1994 Southwest	HOU 20:31	PHX 21:16	11%	3%	0.6%	no record
WN 1992 Southwest	HOU 18:08	PHX 18:54	15%	4%	0.6%	no record

How these are worked out. Each flight’s odds are our forecast for that day; 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 Wed, Oct 7 (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