Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 1961
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
DL 1961 · JFK → SJU
departs 12:29 PM ET · arrives 4:25 PM AT
Forecast issued Thu 3:00 PM ET · 46h before departure
Watch this flight
Other days
Today 18%
Fri 10/2 16%
Sat 10/3
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?
12%
chance · ±2 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
12%
Leave 15+ late
14%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
4.6d
Now
1d
12h
6h
Departs
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 10% · changed +0 pts in 24h
+0 pts
12%
Yes 12%
No 88%
Leave JFK more than 15 minutes late?
Calm-weather odds: 12% · changed −1 pt in 24h
−1 pt
14%
Yes 14%
No 86%
Arrive at SJU more than an hour late?
Calm-weather odds: 2% · 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
87%
15–30 min late
6%
30 min–1 hour late
3%
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
↓
DL's recent on-time record
↓
Mostly benign weather forecast at JFK
Weather at each end
JFK (origin)
Gusts 14 kt Ceiling 5,333 ft Visibility 10+ mi Precip none
SJU (destination)
Gusts 13 kt Ceiling 2,200 ft Visibility 10+ mi Precip 0.04 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.