Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1134
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 28
DL 1134 · SFO → SEA
departs 10:34 AM PT · arrives 12:35 PM PT
Forecast issued Tue 1:00 AM ET · 37h before departure
Watch this flight
Other days
Today 32%
Wed 10/28
Thu 10/29 33%
Fri 10/30 35%
Sat 10/31 24%
Sun 11/1 40%
Mon 11/2 36%
Odds over time
Arrive at SEA more than 15 minutes late?
23%
chance · ±3 pts
−3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
23%
Leave 15+ late
15%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.6d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 19% · changed −3 pts in 24h
−3 pts
23%
Yes 23%
No 77%
Leave SFO more than 15 minutes late?
Calm-weather odds: 14% · changed +2 pts in 24h
+2 pts
15%
Yes 15%
No 85%
Arrive at SEA more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
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
76%
15–30 min late
12%
30 min–1 hour late
6%
1–2 hours late
3%
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
↑
10am departures from SFO are often late
↑
Cloud base down to 1,300 ft forecast at SEA that day
↑
SFO is prone to delays
↓
Mostly benign weather forecast at SFO
↓
Wednesdays in October are usually quieter than average
Weather at each end
SFO (origin)
Gusts 13 kt Ceiling none (clear) Visibility 10+ mi Precip none
SEA (destination)
Gusts 20 kt Ceiling 1,500 ft Visibility 6 mi Precip 0.07 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.