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.
WESTJET · FLIGHT WS 1502
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 28 Tomorrow
WS 1502 · YYC → SFO
departs 2:41 PM MDT · arrives 4:40 PM PT
Forecast issued Tue 3:00 AM ET · 38h before departure
Watch this flight
Odds over time
Arrive at SFO more than 15 minutes late?
46%
chance · ±0 pts
+4 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
46%
Leave 15+ late
31%
Arrive 1h+ late
17%
Cancelled
4%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.7d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SFO more than 15 minutes late?
Calm-weather odds: 16% · changed +4 pts in 24h
+4 pts
46%
Yes 46%
No 54%
Leave YYC more than 15 minutes late?
Calm-weather odds: 18% · changed +3 pts in 24h
+3 pts
31%
Yes 31%
No 69%
Arrive at SFO more than an hour late?
Calm-weather odds: 5% · changed +1 pt in 24h
+1 pt
17%
Yes 17%
No 83%
Cancelled?
Calm-weather odds: 1% · changed +1 pt in 24h
+1 pt
4%
Yes 4%
No 96%
How late will it get to SFO?
On time or early
52%
15–30 min late
15%
30 min–1 hour late
13%
1–2 hours late
12%
Over 2 hours late
4%
Cancelled
4%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Visibility down to 1 mi, 0.7 in of snow forecast at YYC that day
↑
Arrivals into SFO at that hour are often late
↑
SFO is prone to delays
↓
Mostly benign weather forecast at SFO
↓
Wednesdays in October are usually quieter than average
Weather at each end
YYC (origin)
Gusts 18 kt Ceiling 1,300 ft Visibility 2 mi Precip 0.06 in
SFO (destination)
Gusts 13 kt Ceiling none (clear) 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.