Wednesday, October 7 · typical odds for a Wednesday (too early for a weather forecast) · issued Sat 12:00 PM ET · 4 nonstops

Wed, Oct 7 looks like a normal day here: all 4 nonstops are 8–15% likely to arrive 15+ min late.

Safest bet that day WN 3399 STL 08:22 → LAX 10:24 · 8% chance 15+ min late Riskiest B6 8803 STL 14:57 → LAX 17:19 · 15% chance 15+ min late

Every nonstop on Wed, Oct 7

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 3399 Southwest	STL 08:22	LAX 10:24	8%	2%	0.5%	no record
AA 6480 American flown by SkyWest Flight history →	STL 06:39	LAX 08:55	13%	4%	0.6%	86%
WN 3850 Southwest	STL 21:35	LAX 23:27	15%	3%	0.5%	no record
B6 8803 JetBlue	STL 14:57	LAX 17:19	15%	7%	1.2%	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 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