Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1015
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
DL 1015 · IAD → SEA
departs 7:00 AM ET · arrives 9:45 AM PT
Forecast issued Fri 2:00 PM ET · 7h after departure
Watch this flight
Other days
Today
Sat 10/3 10%
Sun 10/4 8%
Mon 10/5 12%
Tue 10/6 10%
Wed 10/7 8%
Thu 10/8 10%
Odds over time
Arrive at SEA more than 15 minutes late?
8%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
8%
Leave 15+ late
6%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.4d
2d
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 8% · changed −1 pt in 24h
−1 pt
8%
Yes 8%
No 92%
Leave IAD more than 15 minutes late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Arrive at SEA more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
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 SEA?
On time or early
91%
15–30 min late
3%
30 min–1 hour late
2%
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
↑
This flight has been late 21% of the time recently
↓
Early flights usually leave on time
↓
Mostly benign weather forecast at IAD
Weather at each end
IAD (origin)
Gusts 15 kt Ceiling 6,000 ft Visibility 10+ mi Precip 0.02 in
SEA (destination)
Gusts 9 kt Ceiling 1,700 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.