Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 1961
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
DL 1961 · JFK → SJU
departs 12:45 PM ET · arrives 4:38 PM AT
Forecast issued Thu 6:00 PM ET · 5h after departure
Watch this flight
Other days
Today
Fri 10/2 15%
Sat 10/3 13%
Sun 10/4 19%
Mon 10/5 14%
Tue 10/6 11%
Wed 10/7 18%
Odds over time
Arrive at SJU more than 15 minutes late?
18%
chance · ±1 pts
+2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
18%
Leave 15+ late
16%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
1d
12h
6h
Departs
Lands
Now
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 18% · changed +2 pts in 24h
+2 pts
18%
Yes 18%
No 82%
Leave JFK more than 15 minutes late?
Calm-weather odds: 16% · changed −1 pt in 24h
−1 pt
16%
Yes 16%
No 84%
Arrive at SJU more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SJU?
On time or early
81%
15–30 min late
10%
30 min–1 hour late
5%
1–2 hours late
2%
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
↑
Arrivals into SJU at that hour are often late
↑
This flight has been late 17% of the time recently
↓
Mostly benign weather forecast at JFK
↓
Thursdays in October are usually quieter than average
Weather at each end
JFK (origin)
Gusts 12 kt Ceiling 5,000 ft Visibility 8 mi Precip none
SJU (destination)
Gusts 25 kt Ceiling 3,200 ft Visibility 10+ mi Precip 0.06 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.