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 1552
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 28 Tomorrow
WS 1552 · YYC → SEA
departs 5:51 PM MDT · arrives 6:31 PM PT
Forecast issued Tue 5:00 AM ET · 39h before departure
Watch this flight
Other days
Today 19%
Wed 10/28
Thu 10/29 25%
Fri 10/30 22%
Sat 10/31 22%
Sun 11/1 27%
Mon 11/2 24%
Odds over time
Arrive at SEA more than 15 minutes late?
34%
chance · ±4 pts
−14 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
34%
Leave 15+ late
23%
Arrive 1h+ late
7%
Cancelled
3%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 11% · changed −14 pts in 24h
−14 pts
34%
Yes 34%
No 66%
Leave YYC more than 15 minutes late?
Calm-weather odds: 13% · changed −4 pts in 24h
−4 pts
23%
Yes 23%
No 77%
Arrive at SEA more than an hour late?
Calm-weather odds: 2% · changed −6 pts in 24h
−6 pts
7%
Yes 7%
No 93%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
3%
Yes 3%
No 97%
How late will it get to SEA?
On time or early
64%
15–30 min late
7%
30 min–1 hour late
18%
1–2 hours late
5%
Over 2 hours late
2%
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
↑
Later flights pick up delays from earlier in the day
↑
Arrivals into SEA at that hour are often late
↓
Wednesdays in October are usually quieter than average
↓
5pm departures from YYC are usually not late
Weather at each end
YYC (origin)
Gusts 18 kt Ceiling 1,300 ft Visibility 2 mi Precip 0.06 in
SEA (destination)
Gusts 19 kt Ceiling 1,300 ft Visibility 6 mi Precip 0.07 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.