Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

DELTA · FLIGHT DL 1966 SCHEDULED · TYPICAL SCHEDULE

Friday, October 2 Tomorrow

DL 1966 · JFK → SJU

departs 8:00 AM ET · arrives 12:00 PM AT

Forecast issued Thu 6:00 PM ET · 14h before departure

Arrive at SJU more than 15 minutes late?

11% chance · ±1 pts +1 pt · 24h

HOW SURE WE ARE Good. The odds now lean mostly on firmed-up weather forecasts.

How late will it get to SJU?

On time or early
88%
15–30 min late
5%
30 min–1 hour late
3%
1–2 hours late
1%
Over 2 hours late
1%
Cancelled
<1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ Mostly benign weather forecast at SJU

↑ This flight has been late 20% of the time recently

↑ Arrivals into SJU at that hour are often late

↓ Mostly benign weather forecast at JFK

↓ Early flights usually leave on time

Weather at each end

JFK (origin) Gusts15 kt Ceiling6,000 ft Visibility10+ mi Precip0.08 in

SJU (destination) Gusts14 kt Ceiling11,000 ft Visibility10+ mi Precip0.03 in

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

DL 1966 · JFK → SJU

Odds over time

How late will it get to SJU?