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 1720
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
DL 1720 · ATL → TPA
departs 7:59 PM ET · arrives 9:30 PM ET
Forecast issued Thu 1:00 AM ET · 67h before departure
Watch this flight
Other days
Today 39%
Fri 10/2 25%
Sat 10/3
Sun 10/4 21%
Mon 10/5 19%
Tue 10/6 16%
Wed 10/7 15%
Odds over time
Arrive at TPA more than 15 minutes late?
39%
chance · ±5 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
39%
Leave 15+ late
43%
Arrive 1h+ late
16%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.9d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at TPA more than 15 minutes late?
Calm-weather odds: 15% · changed – in 24h
–
39%
Yes 39%
No 61%
Leave ATL more than 15 minutes late?
Calm-weather odds: 17% · changed – in 24h
–
43%
Yes 43%
No 57%
Arrive at TPA more than an hour late?
Calm-weather odds: 3% · changed – in 24h
–
16%
Yes 16%
No 84%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
1%
Yes 1%
No 99%
How late will it get to TPA?
On time or early
60%
15–30 min late
11%
30 min–1 hour late
12%
1–2 hours late
7%
Over 2 hours late
9%
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, thunderstorms forecast at TPA that day
↑
Cloud base down to 300 ft, 0.5 in of rain forecast at ATL that day
↑
7pm departures from ATL are often late
↓
ATL usually runs smoothly
↓
DL's recent on-time record
Weather at each end
ATL (origin)
Gusts 10 kt Ceiling 3,800 ft Visibility 4 mi Precip 0.46 in
TPA (destination)
Gusts 13 kt Ceiling 4,600 ft Visibility 10+ mi Precip 0.29 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.