Schedule: FAA flight plans.

DELTA · FLIGHT DL 1877 DELAYED: NOW PLANNED TO TAKE OFF 8:30 AM ET (21 MIN LATER THAN FIRST FILED)

Tuesday, October 13 Tomorrow

DL 1877 · JFK → SJU

departs 8:02 AM ET · arrives 12:01 PM AT

Forecast issued Mon 10:00 AM ET · 22h before departure

Arrive at SJU more than 15 minutes late?

26% chance · ±0 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
90%
15–30 min late
3%
30 min–1 hour late
5%
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

↑ 8am departures from JFK are often late

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

↑ JFK is prone to delays

↓ Tuesdays in October are usually quieter than average

↓ DL's recent on-time record

Weather at each end

JFK (origin) Gusts18 kt Ceiling2,700 ft Visibility10+ mi Precipnone

SJU (destination) Gusts11 kt Ceiling3,600 ft Visibility10+ mi Precip0.16 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?