Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1099
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
DL 1099 · ATL → TPA
departs 11:10 AM ET · arrives 12:39 PM ET
Forecast issued Fri 10:00 AM ET · 25h before departure
Watch this flight
Other days
Today 19%
Sat 10/3
Sun 10/4 28%
Mon 10/5 10%
Tue 10/6 8%
Wed 10/7 9%
Thu 10/8 12%
Odds over time
Arrive at TPA more than 15 minutes late?
18%
chance · ±1 pts
+2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
17%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.5d
2d
Now
12h
6h
Departs
Lands
Arrive at TPA more than 15 minutes late?
Calm-weather odds: 13% · changed +2 pts in 24h
+2 pts
18%
Yes 18%
No 82%
Leave ATL more than 15 minutes late?
Calm-weather odds: 11% · changed +1 pt in 24h
+1 pt
17%
Yes 17%
No 83%
Arrive at TPA 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 TPA?
On time or early
82%
15–30 min late
8%
30 min–1 hour late
6%
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
↑
0.3 in of rain forecast at TPA that day
↑
Other factors
↑
This flight has been late 16% of the time recently
↓
DL's recent on-time record
↓
ATL usually runs smoothly
Weather at each end
ATL (origin)
Gusts 8 kt Ceiling 800 ft Visibility 8 mi Precip 0.12 in
TPA (destination)
Gusts 14 kt Ceiling 7,000 ft Visibility 10+ mi Precip 0.22 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.