Schedule: the flights that flew on Tuesday, Oct 20, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 9973
SCHEDULED · TYPICAL SCHEDULE
Tuesday, October 27 Today
DL 9973 · SLC → SEA
departs 10:01 AM MT · arrives 11:00 AM PT
Forecast issued Tue 2:00 AM ET · 10h before departure
Watch this flight
Odds over time
Arrive at SEA more than 15 minutes late?
28%
chance · ±0 pts
+14 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
28%
Leave 15+ late
15%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.5d
2d
1d
Now
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 16% · changed +14 pts in 24h
+14 pts
28%
Yes 28%
No 72%
Leave SLC more than 15 minutes late?
Calm-weather odds: 10% · changed +7 pts in 24h
+7 pts
15%
Yes 15%
No 85%
Arrive at SEA more than an hour late?
Calm-weather odds: 3% · changed +2 pts in 24h
+2 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to SEA?
On time or early
71%
15–30 min late
17%
30 min–1 hour late
7%
1–2 hours late
2%
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
↑
Cloud base down to 900 ft forecast at SEA that day
↑
Other factors
↑
SEA is prone to delays
↓
Tuesdays in October are usually quieter than average
↓
DL's recent on-time record
Weather at each end
SLC (origin)
Gusts 40 kt Ceiling 9,857 ft Visibility 8.28571 mi Precip 0.01 in
SEA (destination)
Gusts 20 kt Ceiling 900 ft Visibility 7 mi Precip 0.08 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.