Schedule: the flights that flew on Saturday, Oct 24, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1509
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 31
DL 1509 · HOU → ATL
departs 11:00 AM CT · arrives 2:04 PM ET
Forecast issued Wed 5:00 PM ET · 67h before departure
Watch this flight
Other days
Today 9%
Thu 10/29 6%
Fri 10/30 7%
Sat 10/31
Sun 11/1 12%
Mon 11/2 12%
Tue 11/3 16%
Odds over time
Arrive at ATL more than 15 minutes late?
15%
chance · ±1 pts
−6 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
11%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.5d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 8% · changed −6 pts in 24h
−6 pts
15%
Yes 15%
No 85%
Leave HOU more than 15 minutes late?
Calm-weather odds: 9% · changed −6 pts in 24h
−6 pts
11%
Yes 11%
No 89%
Arrive at ATL more than an hour late?
Calm-weather odds: 2% · changed −3 pts in 24h
−3 pts
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed −10 pts in 24h
−10 pts
<1%
Yes <1%
No 99%
How late will it get to ATL?
On time or early
85%
15–30 min late
7%
30 min–1 hour late
4%
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
↑
Arrivals into ATL at that hour are often late
↑
Other factors
↑
Mostly benign weather forecast at HOU
↓
DL's recent on-time record
↓
ATL usually runs smoothly
Weather at each end
HOU (origin)
Gusts 8 kt Ceiling 5,000 ft Visibility 9 mi Precip 0.04 in
ATL (destination)
Gusts 22 kt Ceiling 3,900 ft Visibility 10+ mi Precip none
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.