Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 1913
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Yesterday
DL 1913 · DTW → SJU
departs 8:35 AM ET · arrives 1:11 PM AT
Forecast issued Wed 10:00 PM ET · 13h after departure
Watch this flight
Other days
Wed 9/30
Today 15%
Fri 10/2 23%
Sat 10/3 11%
Sun 10/4 14%
Mon 10/5 12%
Tue 10/6 11%
Wed 10/7 13%
Odds over time
Arrive at SJU more than 15 minutes late?
13%
chance · ±0 pts
+2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
13%
Leave 15+ late
12%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 13% · changed +2 pts in 24h
+2 pts
13%
Yes 13%
No 87%
Leave DTW more than 15 minutes late?
Calm-weather odds: 12% · changed −1 pt in 24h
−1 pt
12%
Yes 12%
No 88%
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
86%
15–30 min late
7%
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
↑
This flight has been late 25% of the time recently
↑
Arrivals into SJU at that hour are often late
↑
DTW is busy at that time
↓
Mostly benign weather forecast at DTW
↓
Wednesdays in September are usually quieter than average
Weather at each end
DTW (origin)
Gusts 8 kt Ceiling 2,800 ft Visibility 6 mi Precip 0.04 in
SJU (destination)
Gusts 24 kt Ceiling none (clear) Visibility 10+ mi Precip 0.07 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.