Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 3173
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
DL 3173 · ATL → GSO
departs 8:10 AM ET · arrives 9:27 AM ET
Forecast issued Fri 3:00 AM ET · 53h before departure
Watch this flight
Other days
Today 10%
Sat 10/3 6%
Sun 10/4
Mon 10/5 6%
Tue 10/6 6%
Wed 10/7 6%
Thu 10/8 5%
Odds over time
Arrive at GSO more than 15 minutes late?
20%
chance · ±2 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
20%
Leave 15+ late
13%
Arrive 1h+ late
3%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.4d
Now
1d
12h
6h
Departs
Lands
Arrive at GSO more than 15 minutes late?
Calm-weather odds: 8% · changed – in 24h
–
20%
Yes 20%
No 80%
Leave ATL more than 15 minutes late?
Calm-weather odds: 9% · changed – in 24h
–
13%
Yes 13%
No 87%
Arrive at GSO more than an hour late?
Calm-weather odds: 1% · changed – in 24h
–
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
1%
Yes 1%
No 99%
How late will it get to GSO?
On time or early
79%
15–30 min late
13%
30 min–1 hour late
4%
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
↑
Cloud base down to 200 ft, visibility down to 0.4 mi, 1.0 in of rain forecast at GSO that day
↑
Cloud base down to 300 ft, visibility down to 1 mi, 1.4 in of rain forecast at ATL that day
↑
Other factors
↓
Arrivals into GSO at that hour are usually not late
↓
Early flights usually leave on time
Weather at each end
ATL (origin)
Gusts 9 kt Ceiling 300 ft Visibility 1 mi Precip 1.80 in
GSO (destination)
Gusts 11 kt Ceiling 200 ft Visibility 0.4 mi Precip 1.09 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.