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 1555
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 28 Tomorrow
WS 1555 · SEA → YYC
departs 7:47 PM PT · arrives 10:33 PM MDT
Forecast issued Tue 11:00 PM ET · 24h before departure
Watch this flight
Other days
Today
Thu 10/29 16%
Fri 10/30 19%
Sat 10/31 18%
Odds over time
Arrive at YYC more than 15 minutes late?
15%
chance · ±0 pts
−3 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
16%
Arrive 1h+ late
4%
Cancelled
3%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.9d
2d
Now
12h
6h
Departs
Lands
Arrive at YYC more than 15 minutes late?
Calm-weather odds: 10% · changed −3 pts in 24h
−3 pts
15%
Yes 15%
No 85%
Leave SEA more than 15 minutes late?
Calm-weather odds: 9% · changed +0 pts in 24h
+0 pts
16%
Yes 16%
No 84%
Arrive at YYC more than an hour late?
Calm-weather odds: 3% · changed −1 pt in 24h
−1 pt
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
How late will it get to YYC?
On time or early
83%
15–30 min late
6%
30 min–1 hour late
4%
1–2 hours late
2%
Over 2 hours late
1%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 1,300 ft, visibility down to 2 mi forecast at YYC that day
↑
7pm departures from SEA are often late
↑
Later flights pick up delays from earlier in the day
↓
Wednesdays in October are usually quieter than average
↓
YYC usually runs smoothly
Weather at each end
SEA (origin)
Gusts 21 kt Ceiling 3,500 ft Visibility 10+ mi Precip 0.18 in
YYC (destination)
Gusts 17 kt Ceiling 1,300 ft Visibility 2 mi Precip 0.02 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.