Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1961
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Yesterday
DL 1961 · SJU → JFK
departs 5:50 PM AT · arrives 10:04 PM ET
Forecast issued Fri 10:00 PM ET · 4h after departure
Watch this flight
Other days
Fri 10/2
Today 10%
Sun 10/4 16%
Mon 10/5 12%
Fri 10/9 14%
Odds over time
Arrive at JFK more than 15 minutes late?
24%
chance · ±0 pts
+6 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
24%
Leave 15+ late
22%
Arrive 1h+ late
14%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.8d
2d
1d
12h
6h
Departs
Lands
Arrive at JFK more than 15 minutes late?
Calm-weather odds: 24% · changed +6 pts in 24h
+6 pts
24%
Yes 24%
No 76%
Leave SJU more than 15 minutes late?
Calm-weather odds: 22% · changed +7 pts in 24h
+7 pts
22%
Yes 22%
No 78%
Arrive at JFK more than an hour late?
Calm-weather odds: 13% · changed +5 pts in 24h
+5 pts
14%
Yes 14%
No 86%
Cancelled?
Calm-weather odds: 2% · changed +1 pt in 24h
+1 pt
2%
Yes 2%
No 98%
How late will it get to JFK?
On time or early
75%
15–30 min late
11%
30 min–1 hour late
0%
1–2 hours late
10%
Over 2 hours late
3%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Arrivals into JFK at that hour are often late
↑
Later flights pick up delays from earlier in the day
↑
5pm departures from SJU are often late
↓
SJU usually runs smoothly
↓
This flight has been late 13% of the time recently
Weather at each end
SJU (origin)
Gusts 22 kt Ceiling none (clear) Visibility 10+ mi Precip none
JFK (destination)
Gusts 24 kt Ceiling 4,800 ft Visibility 9 mi Precip 0.01 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.