Schedule: the flights that flew on Thursday, Oct 22, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
WESTJET · FLIGHT WS 1544
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 29
WS 1544 · YYC → IAH
departs 8:45 AM MDT · arrives 1:49 PM CT
Forecast issued Tue 2:00 AM ET · 57h before departure
Watch this flight
Other days
Today 12%
Wed 10/28 65%
Thu 10/29
Fri 10/30 20%
Sat 10/31 13%
Odds over time
Arrive at IAH more than 15 minutes late?
26%
chance · ±3 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
26%
Leave 15+ late
20%
Arrive 1h+ late
5%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.4d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at IAH more than 15 minutes late?
Calm-weather odds: 10% · changed – in 24h
–
26%
Yes 26%
No 74%
Leave YYC more than 15 minutes late?
Calm-weather odds: 11% · changed – in 24h
–
20%
Yes 20%
No 80%
Arrive at IAH more than an hour late?
Calm-weather odds: 3% · changed – in 24h
–
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
1%
Yes 1%
No 99%
How late will it get to IAH?
On time or early
73%
15–30 min late
12%
30 min–1 hour late
9%
1–2 hours late
2%
Over 2 hours late
3%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Mostly benign weather forecast at YYC
↑
This route's recent record
↑
IAH is busy at that time
↓
Mostly benign weather forecast at IAH
↓
Early flights usually leave on time
Weather at each end
YYC (origin)
Gusts 10 kt Ceiling 4,900 ft Visibility 8 mi Precip none
IAH (destination)
Gusts 13 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.