Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · 6 nonstops

Sun, Oct 11: WN 2839 at 06:10 is the safest bet, 7% chance of being 15+ min late; evening flights run 38–42%.

Safest bet that day WN 2839 LAS 06:10 → IND 12:44 · 7% chance 15+ min late Riskiest WN 867 LAS 13:15 → IND 19:50 · 43% chance 15+ min late

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.


WN 2839 Southwest	LAS 06:10	IND 12:44	7%	1%	0.5%	no record
WN 2952 Southwest	LAS 11:01	IND 17:34	32%	7%	0.6%	no record
WN 4077 Southwest	LAS 17:55	IND 00:29	38%	13%	0.6%	no record
G4 6 Allegiant	LAS 14:20	IND 21:11	39%	15%	0.8%	no record
WN 2750 Southwest	LAS 19:20	IND 01:50	42%	14%	0.6%	no record
WN 867 Southwest	LAS 13:15	IND 19:50	43%	10%	0.6%	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 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