Schedule: the flights that flew on Sunday, Oct 25, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1551
SCHEDULED · TYPICAL SCHEDULE
Sunday, November 1
DL 1551 · LAX → SEA
departs 7:17 PM PT · arrives 10:05 PM PT
Forecast issued Sat 1:00 AM ET · 46h before departure
Watch this flight
Other days
Today 19%
Sun 11/1
Mon 11/2 33%
Tue 11/3 34%
Wed 11/4 32%
Thu 11/5 39%
Fri 11/6 41%
Odds over time
Arrive at SEA more than 15 minutes late?
24%
chance · ±10 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
24%
Leave 15+ late
32%
Arrive 1h+ late
9%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.9d
Now
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 25% · changed +0 pts in 24h
+0 pts
24%
Yes 24%
No 76%
Leave LAX more than 15 minutes late?
Calm-weather odds: 30% · changed −6 pts in 24h
−6 pts
32%
Yes 32%
No 68%
Arrive at SEA more than an hour late?
Calm-weather odds: 8% · changed +0 pts in 24h
+0 pts
9%
Yes 9%
No 91%
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
75%
15–30 min late
6%
30 min–1 hour late
9%
1–2 hours late
7%
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
↑
Later flights pick up delays from earlier in the day
↑
7pm departures from LAX are often late
↑
LAX is busy at that time
↓
Cloud base down to 300 ft, visibility down to 0.3 mi forecast at SEA that day
↓
0.3 in of rain forecast at LAX that day
Weather at each end
LAX (origin)
Gusts 16 kt Ceiling 2,700 ft Visibility 7 mi Precip 0.26 in
SEA (destination)
Gusts 4 kt Ceiling 1,800 ft Visibility 0.3 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.