Wednesday, October 7 · typical odds for a Wednesday (too early for a weather forecast) · issued Sat 12:00 PM ET · 9 nonstops

Wed, Oct 7: YX 5820 at 05:59 is the safest bet, 5% chance of being 15+ min late; evening flights run 32–36%.

Safest bet that day YX 5820 BUF 05:59 → LGA 07:39 · 5% chance 15+ min late Riskiest AA 860 BUF 17:58 → LGA 19:27 · 36% chance 15+ min late

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. Dimmed: airlines we don’t forecast yet, shown with their 12-month record if they usually fly that weekday.


YX 5820 Republic	BUF 05:59	LGA 07:39	5%	3%	2.2%	no record
YX 4614 Republic	BUF 06:06	LGA 07:36	6%	3%	2.0%	no record
AA 4363 American flown by Republic Flight history →	BUF 11:11	LGA 12:47	16%	8%	3.3%	89%
DL 5792 Delta flown by Republic Flight history →	BUF 18:23	LGA 20:03	32%	18%	4.7%	86%worse than usual
AA 860 American	BUF 17:58	LGA 19:27	36%	20%	2.4%	no record
DL 5376 Delta flown by Endeavor no forecast: 12-month record	BUF 10:20	LGA 11:44	11%	7%	4.2%	89%
DL 4670 Delta flown by Endeavor no forecast: 12-month record	BUF 06:05	LGA 07:30	13%	5%	3.8%	87%
DL 5362 Delta flown by Endeavor no forecast: 12-month record	BUF 14:30	LGA 15:58	30%	17%	8.9%	70%
DL 5380 Delta flown by Endeavor no forecast: 12-month record	BUF 18:10	LGA 19:39	41%	20%	15.6%	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 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