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 8815
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 31 Today
DL 8815 · BOS → ATL
departs 8:31 PM ET · arrives 11:14 PM ET
Forecast issued Sat 8:00 PM ET · 0h before departure
Watch this flight
Odds over time
Arrive at ATL more than 15 minutes late?
16%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
16%
Leave 15+ late
22%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.9d
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 18% · changed +1 pt in 24h
+1 pt
16%
Yes 16%
No 84%
Leave BOS more than 15 minutes late?
Calm-weather odds: 22% · changed +0 pts in 24h
+0 pts
22%
Yes 22%
No 78%
Arrive at ATL more than an hour late?
Calm-weather odds: 5% · changed +1 pt in 24h
+1 pt
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to ATL?
On time or early
83%
15–30 min late
5%
30 min–1 hour late
6%
1–2 hours late
4%
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
↑
Later flights pick up delays from earlier in the day
↑
8pm departures from BOS are often late
↑
Arrivals into ATL at that hour are often late
↓
Gusts to 26 kt forecast at BOS that day
↓
Mostly benign weather forecast at ATL
Weather at each end
BOS (origin)
Gusts 26 kt Ceiling none (clear) Visibility 10+ mi Precip none
ATL (destination)
Gusts 17 kt Ceiling 7,286 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.