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 Today
DL 1961 · JFK → SJU
departs 12:45 PM ET · arrives 4:38 PM AT
Forecast issued Fri 7:00 AM ET · 6h before departure
Watch this flight
Other days
Today
Sat 10/3 14%
Sun 10/4 14%
Mon 10/5 14%
Tue 10/6 11%
Wed 10/7 18%
Odds over time
Arrive at SJU more than 15 minutes late?
36%
chance · ±0 pts
+24 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
36%
Leave 15+ late
17%
Arrive 1h+ late
11%
Cancelled
5%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
3.6d
2d
1d
12h
Now
Departs
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 10% · changed +24 pts in 24h
+24 pts
36%
Yes 36%
No 64%
Leave JFK more than 15 minutes late?
Calm-weather odds: 12% · changed +1 pt in 24h
+1 pt
17%
Yes 17%
No 83%
Arrive at SJU more than an hour late?
Calm-weather odds: 2% · changed +8 pts in 24h
+8 pts
11%
Yes 11%
No 89%
Cancelled?
Calm-weather odds: <1% · changed +4 pts in 24h
+4 pts
5%
Yes 5%
No 95%
How late will it get to SJU?
On time or early
61%
15–30 min late
26%
30 min–1 hour late
0%
1–2 hours late
7%
Over 2 hours late
2%
Cancelled
5%
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
↑
JFK is prone to delays
↓
Fridays in October are usually quieter than average
↓
JFK is quiet at that time
Weather at each end
JFK (origin)
Gusts 16 kt Ceiling 3,500 ft Visibility 10+ mi Precip 0.04 in
SJU (destination)
Gusts 15 kt Ceiling none (clear) Visibility 10+ mi Precip 0.10 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.