Schedule: the flights that flew on Sunday, Oct 4, 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
Sunday, October 11 Today
WS 1499 · SFO → YYC
departs 6:02 AM PT · arrives 9:46 AM MDT
Forecast issued Sun 6:00 AM ET · 3h before departure
Watch this flight
Other days
Today
Mon 10/12 8%
Tue 10/13 5%
Thu 10/15 6%
Fri 10/16 6%
Odds over time
Arrive at YYC more than 15 minutes late?
9%
chance · ±0 pts
−5 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
9%
Leave 15+ late
5%
Arrive 1h+ late
2%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.5d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at YYC more than 15 minutes late?
Calm-weather odds: 8% · changed −5 pts in 24h
−5 pts
9%
Yes 9%
No 91%
Leave SFO more than 15 minutes late?
Calm-weather odds: 6% · changed −6 pts in 24h
−6 pts
5%
Yes 5%
No 95%
Arrive at YYC more than an hour late?
Calm-weather odds: 3% · changed −1 pt in 24h
−1 pt
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: 2% · changed −5 pts in 24h
−5 pts
1%
Yes 1%
No 99%
How late will it get to YYC?
On time or early
90%
15–30 min late
<1%
30 min–1 hour late
6%
1–2 hours late
<1%
Over 2 hours late
1%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 1,100 ft, visibility down to 2 mi forecast at YYC that day
↑
This route's recent record
↑
SFO is busy at that time
↓
Early flights usually leave on time
↓
Mostly benign weather forecast at SFO
Weather at each end
SFO (origin)
Gusts 16 kt Ceiling none (clear) Visibility 10+ mi Precip none
YYC (destination)
Gusts 15 kt Ceiling 600 ft Visibility 2 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.