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 1544
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 28 Tomorrow
WS 1544 · YYC → IAH
departs 8:46 AM MDT · arrives 1:52 PM CT
Forecast issued Tue 2:00 AM ET · 33h before departure
Watch this flight
Other days
Today 12%
Wed 10/28
Thu 10/29 26%
Fri 10/30 20%
Sat 10/31 13%
Odds over time
Arrive at IAH more than 15 minutes late?
65%
chance · ±1 pts
+9 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
65%
Leave 15+ late
30%
Arrive 1h+ late
16%
Cancelled
4%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
6.4d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at IAH more than 15 minutes late?
Calm-weather odds: 11% · changed +9 pts in 24h
+9 pts
65%
Yes 65%
No 35%
Leave YYC more than 15 minutes late?
Calm-weather odds: 10% · changed +0 pts in 24h
+0 pts
30%
Yes 30%
No 70%
Arrive at IAH more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
16%
Yes 16%
No 84%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
4%
Yes 4%
No 96%
How late will it get to IAH?
On time or early
34%
15–30 min late
31%
30 min–1 hour late
16%
1–2 hours late
8%
Over 2 hours late
7%
Cancelled
4%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Visibility down to 1 mi, 0.7 in of snow forecast at YYC that day
↑
This route's recent record
↑
IAH is prone to delays
↓
Wednesdays in October are usually quieter than average
↓
Early flights usually leave on time
Weather at each end
YYC (origin)
Gusts 17 kt Ceiling 1,500 ft Visibility 1 mi Precip 0.04 in
IAH (destination)
Gusts 15 kt Ceiling 7,000 ft Visibility 6 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.