Today looks like a normal day here: all 5 nonstops are 6–12% likely to arrive 15+ min late.

Safest bet today DL 1637 ATL 09:15 → ICT 10:26 · 6% chance 15+ min late · usually 90% on time Riskiest DL 2959 ATL 21:26 → ICT 22:46 · 12% chance 15+ min late · usually 86% on time

Against a calm day 9% average chance a nonstop arrives 15+ min late; 9% 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 1637 Delta Flight history →	ATL 09:15	ICT 10:26	6%	1%	0.2%	90%
DL 828 Delta	ATL 11:07	ICT 12:26	8%	2%	0.2%	no record
DL 2128 Delta Flight history →	ATL 16:31	ICT 17:47	10%	2%	0.6%	84%
DL 1418 Delta	ATL 16:43	ICT 18:02	10%	2%	0.6%	no record
DL 2959 Delta Flight history →	ATL 21:26	ICT 22:46	12%	3%	0.6%	86%

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 Tue, Oct 6 (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