DL 1877 · JFK → SJU

took off 8:25 AM ET · expected to land 11:40 AM AT (scheduled 8:05 AM ET → 11:57 AM AT)

Forecast issued Sun 9:00 AM ET · 1h after departure

Arrive at SJU more than 15 minutes late?

<1% chance · ±0 pts +2 pts · 24h

HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.

How late will it get to SJU?

LIVE

On time or early
100%
15–30 min late
<1%
30 min–1 hour late
0%
1–2 hours late
0%
Over 2 hours late
0%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%; while it’s in the air they come from the FAA’s arrival estimate.

What’s moving the odds

↑ 8am departures from JFK are often late

↑ JFK is prone to delays

↑ This flight has been late 16% of the time recently

↓ Early flights usually leave on time

↓ Sundays in October are usually quieter than average

Weather at each end

JFK (origin) Gusts15 kt Ceiling2,700 ft Visibility10+ mi Precip0.23 in

SJU (destination) Gusts12 kt Ceilingnone (clear) Visibility10+ mi Precip0.26 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 1877 · JFK → SJU

Odds over time

How late will it get to SJU?