Saturday, October 10 · typical odds for a Saturday (too early for a weather forecast) · issued Mon 4:00 PM ET · 3 nonstops

Sat, Oct 10 looks like a normal day here: all 3 nonstops are 7–17% likely to arrive 15+ min late.

Safest bet that day G7 4443 GSO 06:00 → IAD 07:26 · 7% chance 15+ min late Riskiest UA 4819 GSO 14:52 → IAD 16:28 · 17% chance 15+ min late · usually 75% on time

Every nonstop on Sat, Oct 10

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.


G7 4443 GoJet	GSO 06:00	IAD 07:26	7%	3%	1.2%	no record
UA 3876 United	GSO 10:58	IAD 12:18	9%	5%	0.8%	no record
UA 4819 United flown by CommuteAir Flight history →	GSO 14:52	IAD 16:28	17%	4%	1.4%	75%

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 Sat, Oct 10 (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