Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · 5 nonstops

Sun, Oct 11: DL 1259 at 06:00 is the safest bet, 8% chance of being 15+ min late; evening flights run 20%.

Safest bet that day DL 1259 TUL 06:00 → ATL 09:04 · 8% chance 15+ min late · usually 93% on time Riskiest DL 1186 TUL 16:48 → ATL 19:55 · 20% chance 15+ min late · usually 84% on time

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.


DL 1259 Delta Flight history →	TUL 06:00	ATL 09:04	8%	3%	1.5%	93%
DL 2754 Delta Flight history →	TUL 10:04	ATL 13:05	10%	3%	0.8%	94%
DL 2620 Delta Flight history →	TUL 12:41	ATL 15:45	14%	3%	0.9%	84%
DL 2837 Delta Flight history →	TUL 18:49	ATL 22:00	20%	7%	1.3%	75%
DL 1186 Delta Flight history →	TUL 16:48	ATL 19:55	20%	6%	1.1%	84%

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