Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 2640
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
DL 2640 · LAX → SEA
departs 5:45 PM PT · arrives 8:27 PM PT
Forecast issued Fri 3:00 AM ET · 66h before departure
Watch this flight
Other days
Today 22%
Sat 10/3 11%
Sun 10/4
Mon 10/5 20%
Tue 10/6 14%
Wed 10/7 14%
Odds over time
Arrive at SEA more than 15 minutes late?
25%
chance · ±1 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
25%
Leave 15+ late
24%
Arrive 1h+ late
8%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.9d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 22% · changed – in 24h
–
25%
Yes 25%
No 75%
Leave LAX more than 15 minutes late?
Calm-weather odds: 23% · changed – in 24h
–
24%
Yes 24%
No 76%
Arrive at SEA more than an hour late?
Calm-weather odds: 5% · changed – in 24h
–
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to SEA?
On time or early
75%
15–30 min late
10%
30 min–1 hour late
6%
1–2 hours late
6%
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
↑
Arrivals into SEA at that hour are often late
↑
5pm departures from LAX are often late
↓
Cloud base down to 100 ft forecast at SEA that day
↓
Sundays in October are usually quieter than average
Weather at each end
LAX (origin)
Gusts 13 kt Ceiling none (clear) Visibility 10+ mi Precip none
SEA (destination)
Gusts 7 kt Ceiling 100 ft Visibility 9 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.