Today: only flights still to leave (it’s 3:53 pm at Salt Lake City); 1 already left

Monday, October 5 · our forecast odds · issued Mon 4:00 PM ET · 3 nonstops

Today looks like a normal day here: all 3 nonstops are 14–17% likely to arrive 15+ min late.

Safest bet today DL 3808 SLC 16:05 → MSO 17:45 · 14% chance 15+ min late · usually 91% on time Riskiest DL 1824 SLC 22:49 → MSO 00:24 · 17% chance 15+ min late

Against a calm day 16% average chance a nonstop arrives 15+ min late; 14% 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. 1 flight that already left today is not shown.


DL 3808 Delta flown by SkyWest Flight history →	SLC 16:05	MSO 17:45	14%	4%	0.2%	91%
DL 1723 Delta Flight history →	SLC 22:55	MSO 00:28	17%	4%	0.1%	83%
DL 1824 Delta	SLC 22:49	MSO 00:24	17%	4%	0.1%	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