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 Tomorrow
DL 1913 · SJU → DTW
departs 2:21 PM AT · arrives 7:03 PM ET
Forecast issued Tue 5:00 PM ET · 21h before departure
Watch this flight
Other days
Today 10%
Wed 9/30
Thu 10/1 12%
Fri 10/2 13%
Sat 10/3 11%
Sun 10/4 13%
Mon 10/5 12%
Odds over time
Arrive at DTW more than 15 minutes late?
10%
chance · ±0 pts
+2 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
10%
Leave 15+ late
11%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.8d
2d
Now
12h
6h
Departs
Lands
Arrive at DTW more than 15 minutes late?
Calm-weather odds: 10% · changed +2 pts in 24h
+2 pts
10%
Yes 10%
No 90%
Leave SJU more than 15 minutes late?
Calm-weather odds: 10% · changed +2 pts in 24h
+2 pts
11%
Yes 11%
No 89%
Arrive at DTW 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 DTW?
On time or early
89%
15–30 min late
4%
30 min–1 hour late
3%
1–2 hours late
1%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Arrivals into DTW at that hour are often late
↑
Later flights pick up delays from earlier in the day
↓
Wednesdays in September are usually quieter than average
↓
DTW usually runs smoothly
Weather at each end
SJU (origin)
Gusts 17 kt Ceiling 1,300 ft Visibility 10+ mi Precip 0.09 in
DTW (destination)
Gusts 14 kt Ceiling 6,000 ft Visibility 10+ mi Precip none
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.