Schedule: the flights that flew on Tuesday, Oct 6, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
WESTJET · FLIGHT WS 1499
SCHEDULED · TYPICAL SCHEDULE
Tuesday, October 13
WS 1499 · SFO → YYC
departs 6:00 AM PT · arrives 9:45 AM MDT
Forecast issued Sun 1:00 PM ET · 44h before departure
Watch this flight
Other days
Today 9%
Mon 10/12 7%
Tue 10/13
Thu 10/15 6%
Fri 10/16 6%
Odds over time
Arrive at YYC more than 15 minutes late?
5%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
5%
Leave 15+ late
5%
Arrive 1h+ late
2%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
6.4d
Now
1d
12h
6h
Departs
Lands
Arrive at YYC more than 15 minutes late?
Calm-weather odds: 4% · changed −1 pt in 24h
−1 pt
5%
Yes 5%
No 95%
Leave SFO more than 15 minutes late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
Arrive at YYC more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: 1% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to YYC?
On time or early
94%
15–30 min late
<1%
30 min–1 hour late
2%
1–2 hours late
1%
Over 2 hours late
<1%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This route's recent record
↑
SFO is busy at that time
↓
Early flights usually leave on time
↓
Tuesdays in October are usually quieter than average
Weather at each end
SFO (origin)
Gusts 17 kt Ceiling none (clear) Visibility 10+ mi Precip none
YYC (destination)
Gusts 15 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.