Wednesday, October 7 · typical odds for a Wednesday (too early for a weather forecast) · issued Sat 12:00 PM ET · 4 nonstops

Wed, Oct 7 looks like a normal day here: all 4 nonstops are 3–8% likely to arrive 15+ min late.

Safest bet that day DL 1314 SJC 06:00 → SLC 08:55 · 3% chance 15+ min late · usually 95% on time Riskiest DL 1260 SJC 17:01 → SLC 19:54 · 8% chance 15+ min late · usually 94% on time

Every nonstop on Wed, Oct 7

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 1314 Delta Flight history →	SJC 06:00	SLC 08:55	3%	2%	0.6%	95%
DL 4026 Delta flown by SkyWest Flight history →	SJC 09:45	SLC 12:41	5%	4%	0.5%	95%
OO 3963 SkyWest	SJC 13:35	SLC 16:38	6%	4%	0.5%	no record
DL 1260 Delta Flight history →	SJC 17:01	SLC 19:54	8%	5%	0.6%	94%

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 Wed, Oct 7 (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