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 1121
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
DL 1121 · ATL → SAT
departs 9:46 AM ET · arrives 11:09 AM CT
Forecast issued Fri 2:00 PM ET · 4h after departure
Watch this flight
Other days
Today
Sat 10/3 25%
Sun 10/4 41%
Mon 10/5 13%
Wed 10/7 10%
Odds over time
Arrive at SAT more than 15 minutes late?
25%
chance · ±1 pts
+6 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
25%
Leave 15+ late
13%
Arrive 1h+ late
4%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
3.5d
2d
1d
12h
6h
Departs
Lands
Arrive at SAT more than 15 minutes late?
Calm-weather odds: 26% · changed +6 pts in 24h
+6 pts
25%
Yes 25%
No 75%
Leave ATL more than 15 minutes late?
Calm-weather odds: 13% · changed +3 pts in 24h
+3 pts
13%
Yes 13%
No 87%
Arrive at SAT more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: 1% · changed +1 pt in 24h
+1 pt
2%
Yes 2%
No 98%
How late will it get to SAT?
On time or early
73%
15–30 min late
13%
30 min–1 hour late
8%
1–2 hours late
3%
Over 2 hours late
<1%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 400 ft, 0.5 in of rain forecast at SAT that day
↑
SAT is prone to delays
↑
Other factors
↓
Mostly benign weather forecast at ATL
↓
Arrivals into SAT at that hour are usually not late
Weather at each end
ATL (origin)
Gusts 8 kt Ceiling 600 ft Visibility 5 mi Precip none
SAT (destination)
Gusts 18 kt Ceiling 200 ft Visibility 0.25 mi Precip 1.83 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.