Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · 3 nonstops

Sun, Oct 11: DL 3874 at 08:10 is the safest bet, 4% chance of being 15+ min late; the others run 8–15%.

Safest bet that day DL 3874 OMA 08:10 → SLC 09:52 · 4% chance 15+ min late · usually 93% on time Riskiest OO 3796 OMA 17:45 → SLC 19:26 · 15% chance 15+ min late

Every nonstop on Sun, Oct 11

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 3874 Delta flown by SkyWest Flight history →	OMA 08:10	SLC 09:52	4%	3%	0.6%	93%
DL 3815 Delta flown by SkyWest Flight history →	OMA 12:39	SLC 14:24	8%	5%	0.7%	93%
OO 3796 SkyWest	OMA 17:45	SLC 19:26	15%	9%	1.8%	no record

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 Sun, Oct 11 (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