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 1544
SCHEDULED · TYPICAL SCHEDULE
Tuesday, October 27 Today
WS 1544 · YYC → IAH
departs 8:44 AM MDT · arrives 1:43 PM CT
Forecast issued Tue 2:00 AM ET · 9h before departure
Watch this flight
Other days
Today
Wed 10/28 65%
Thu 10/29 26%
Fri 10/30 20%
Sat 10/31 13%
Odds over time
Arrive at IAH more than 15 minutes late?
12%
chance · ±0 pts
−10 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
12%
Leave 15+ late
9%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.4d
2d
1d
Now
6h
Departs
Lands
Arrive at IAH more than 15 minutes late?
Calm-weather odds: 10% · changed −10 pts in 24h
−10 pts
12%
Yes 12%
No 88%
Leave YYC more than 15 minutes late?
Calm-weather odds: 10% · changed −4 pts in 24h
−4 pts
9%
Yes 9%
No 91%
Arrive at IAH more than an hour late?
Calm-weather odds: 3% · changed −2 pts in 24h
−2 pts
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to IAH?
On time or early
87%
15–30 min late
0%
30 min–1 hour late
9%
1–2 hours late
<1%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 1,100 ft, visibility down to 1.33333 mi forecast at YYC that day
↑
This route's recent record
↑
IAH is prone to delays
↓
Mostly benign weather forecast at IAH
↓
Early flights usually leave on time
Weather at each end
YYC (origin)
Gusts 14 kt Ceiling 1,100 ft Visibility 1.33333 mi Precip 0.04 in
IAH (destination)
Gusts 10 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.