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 1146
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
DL 1146 · GSP → ATL
departs 7:15 AM ET · arrives 8:22 AM ET
Forecast issued Thu 9:00 AM ET · 46h before departure
Watch this flight
Other days
Today 7%
Fri 10/2 5%
Sat 10/3
Sun 10/4 6%
Mon 10/5 6%
Tue 10/6 5%
Wed 10/7 6%
Odds over time
Arrive at ATL more than 15 minutes late?
13%
chance · ±1 pts
+2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
13%
Leave 15+ late
5%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.4d
Now
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 6% · changed +2 pts in 24h
+2 pts
13%
Yes 13%
No 87%
Leave GSP more than 15 minutes late?
Calm-weather odds: 5% · changed −1 pt in 24h
−1 pt
5%
Yes 5%
No 95%
Arrive at ATL more than an hour late?
Calm-weather odds: 2% · 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 ATL?
On time or early
86%
15–30 min late
8%
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
↑
0.4 in of rain forecast at ATL that day
↑
Other factors
↑
Cloud base down to 600 ft, visibility down to 1 mi, 0.8 in of rain forecast at GSP that day
↓
This flight has been late 9% of the time recently
↓
DL's recent on-time record
Weather at each end
GSP (origin)
Gusts 11 kt Ceiling 700 ft Visibility 4 mi Precip 0.67 in
ATL (destination)
Gusts 7 kt Ceiling 4,200 ft Visibility 5 mi Precip 0.17 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.