Today looks like a normal day here: all 3 nonstops are 27–28% likely to arrive 15+ min late.

Safest bet today DL 1109 ATL 14:23 → ABQ 15:31 · 27% chance 15+ min late · usually 86% on time Riskiest DL 1531 ATL 20:47 → ABQ 22:02 · 28% chance 15+ min late · usually 79% on time

Against a calm day 28% average chance a nonstop arrives 15+ min late; 21% 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.


DL 1109 Delta Flight history →	ATL 14:23	ABQ 15:31	27%	4%	0.2%	86%worse than usual
DL 1004 Delta Flight history →	ATL 09:05	ABQ 10:12	27%	3%	0.2%	92%worse than usual
DL 1531 Delta Flight history →	ATL 20:47	ABQ 22:02	28%	3%	0.7%	79%

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