Monday, October 12 · typical odds for a Monday (too early for a weather forecast) · issued Tue 12:00 AM ET · 8 nonstops

Mon, Oct 12: UA 4763 at 06:05 is the safest bet, 6% chance of being 15+ min late; evening flights run 24–33%.

Safest bet that day UA 4763 SLC 06:05 → SFO 07:19 · 6% chance 15+ min late · usually 91% on time Riskiest DL 2762 SLC 20:59 → SFO 21:59 · 33% chance 15+ min late · usually 59% on time

Every nonstop on Mon, Oct 12

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.


UA 4763 United flown by SkyWest Flight history →	SLC 06:05	SFO 07:19	6%	3%	0.7%	91%
DL 920 Delta Flight history →	SLC 07:50	SFO 08:51	18%	5%	0.7%	67%
DL 902 Delta Flight history →	SLC 11:00	SFO 12:03	21%	10%	0.7%	66%
UA 5970 United flown by SkyWest Flight history →	SLC 12:52	SFO 14:01	23%	12%	0.7%	36%
DL 1091 Delta Flight history →	SLC 22:50	SFO 23:52	24%	8%	0.7%	66%
UA 1225 United	SLC 16:30	SFO 17:39	24%	12%	0.6%	no record
DL 1088 Delta Flight history →	SLC 15:10	SFO 16:12	25%	10%	0.7%	66%
DL 2762 Delta Flight history →	SLC 20:59	SFO 21:59	33%	9%	0.7%	59%

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 Mon, Oct 12 (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