Schedule: the flights that flew on Tuesday, Nov 3, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1821
SCHEDULED · TYPICAL SCHEDULE
Tuesday, November 10 Today
DL 1821 · DTW → PWM
departs 2:05 PM ET · arrives 4:01 PM ET
Forecast issued Tue 12:00 AM ET · 14h before departure
Watch this flight
Other days
Today
Wed 11/11 9%
Thu 11/12 26%
Fri 11/13 19%
Sat 11/14 23%
Sun 11/15 27%
Odds over time
Arrive at PWM more than 15 minutes late?
13%
chance · ±1 pts
+6 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
13%
Leave 15+ late
15%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
6.6d
2d
1d
Now
6h
Departs
Lands
Arrive at PWM more than 15 minutes late?
Calm-weather odds: 11% · changed +6 pts in 24h
+6 pts
13%
Yes 13%
No 87%
Leave DTW more than 15 minutes late?
Calm-weather odds: 15% · changed +7 pts in 24h
+7 pts
15%
Yes 15%
No 85%
Arrive at PWM more than an hour late?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
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 PWM?
On time or early
86%
15–30 min late
6%
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
↑
2pm departures from DTW are often late
↑
DL's recent on-time record
↑
Other factors
↓
Tuesdays in November are usually quieter than average
↓
Mostly benign weather forecast at DTW
Weather at each end
DTW (origin)
Gusts 15 kt Ceiling none (clear) Visibility 10+ mi Precip none
PWM (destination)
Gusts 13 kt Ceiling none (clear) 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.