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 1889
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
DL 1889 · ATL → STT
departs 11:35 AM ET · arrives 3:20 PM AST
Forecast issued Wed 5:00 PM ET · 67h before departure
Watch this flight
Other days
Today 27%
Thu 10/1 20%
Fri 10/2 22%
Sat 10/3
Sun 10/4 18%
Mon 10/5 17%
Tue 10/6 14%
Odds over time
Arrive at STT more than 15 minutes late?
30%
chance · ±3 pts
+9 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
22%
Arrive 1h+ late
6%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.6d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at STT more than 15 minutes late?
Calm-weather odds: 17% · changed +9 pts in 24h
+9 pts
30%
Yes 30%
No 70%
Leave ATL more than 15 minutes late?
Calm-weather odds: 14% · changed +4 pts in 24h
+4 pts
22%
Yes 22%
No 78%
Arrive at STT more than an hour late?
Calm-weather odds: 3% · changed +2 pts in 24h
+2 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to STT?
On time or early
70%
15–30 min late
12%
30 min–1 hour late
11%
1–2 hours late
3%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
STT is prone to delays
↑
Cloud base down to 300 ft forecast at ATL that day
↑
Other factors
↓
DL's recent on-time record
Weather at each end
ATL (origin)
Gusts 9 kt Ceiling 300 ft Visibility 3 mi Precip 0.10 in
STT (destination)
Gusts 18 kt Ceiling 4,600 ft Visibility 10+ mi Precip 0.02 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.