Today: DL 2724 at 10:03 is the safest bet, 11% chance of being 15+ min late; evening flights run 21–22%.

Safest bet today DL 2724 BNA 10:03 → MSP 12:14 · 11% chance 15+ min late · usually 88% on time Riskiest WN 4934 BNA 22:15 → MSP 00:29 · 22% chance 15+ min late

Against a calm day 19% average chance a nonstop arrives 15+ min late; 15% for the same flights on a calm-weather day

Every nonstop today

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. 3 flights that already left today are not shown.


DL 2724 Delta Flight history →	BNA 10:03	MSP 12:14	11%	3%	0.2%	88%
DL 2843 Delta Flight history →	BNA 16:00	MSP 18:14	21%	3%	0.1%	71%
DL 2612 Delta Flight history →	BNA 18:45	MSP 20:58	21%	4%	0.2%	78%
WN 4934 Southwest	BNA 22:15	MSP 00:29	22%	5%	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 Mon, Oct 5 (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