Schedule: the flights that flew on Tuesday, Oct 20, 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
Tuesday, October 27 Today
WS 1555 · SEA → YYC
departs 7:46 PM PT · arrives 10:24 PM MDT
Forecast issued Tue 7:00 PM ET · 4h before departure
Watch this flight
Other days
Today
Wed 10/28 15%
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
−1 pt · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
15%
Leave 15+ late
13%
Arrive 1h+ late
5%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at YYC more than 15 minutes late?
Calm-weather odds: 13% · changed −1 pt in 24h
−1 pt
15%
Yes 15%
No 85%
Leave SEA more than 15 minutes late?
Calm-weather odds: 10% · changed −2 pts in 24h
−2 pts
13%
Yes 13%
No 87%
Arrive at YYC more than an hour late?
Calm-weather odds: 3% · changed +3 pts in 24h
+3 pts
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
2%
Yes 2%
No 98%
How late will it get to YYC?
On time or early
83%
15–30 min late
7%
30 min–1 hour late
3%
1–2 hours late
4%
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
↑
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
↓
Tuesdays in October are usually quieter than average
↓
YYC usually runs smoothly
Weather at each end
SEA (origin)
Gusts 21 kt Ceiling 600 ft Visibility 9 mi Precip 0.05 in
YYC (destination)
Gusts 15 kt Ceiling 1,167 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.