Schedule: the flights that flew on Monday, Oct 19, 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
Monday, October 26 Yesterday
WS 1544 · YYC → IAH
departs 8:45 AM MDT · arrives 1:50 PM CT
Forecast issued Mon 11:00 PM ET · 12h after departure
Watch this flight
Other days
Mon 10/26
Today 15%
Wed 10/28 64%
Thu 10/29 21%
Fri 10/30 20%
Sat 10/31 13%
Odds over time
Arrive at IAH more than 15 minutes late?
22%
chance · ±0 pts
+6 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
22%
Leave 15+ late
11%
Arrive 1h+ late
4%
Cancelled
3%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.4d
2d
1d
12h
6h
Departs
Lands
Arrive at IAH more than 15 minutes late?
Calm-weather odds: 22% · changed +6 pts in 24h
+6 pts
22%
Yes 22%
No 78%
Leave YYC more than 15 minutes late?
Calm-weather odds: 11% · changed −9 pts in 24h
−9 pts
11%
Yes 11%
No 89%
Arrive at IAH more than an hour late?
Calm-weather odds: 4% · changed −2 pts in 24h
−2 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: 3% · changed +2 pts in 24h
+2 pts
3%
Yes 3%
No 97%
How late will it get to IAH?
On time or early
76%
15–30 min late
13%
30 min–1 hour late
4%
1–2 hours late
<1%
Over 2 hours late
3%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This route's recent record
↑
IAH is busy at that time
↑
WS's recent on-time record
↓
Mostly benign weather forecast at IAH
↓
Early flights usually leave on time
Weather at each end
YYC (origin)
Gusts — Ceiling — Visibility — Precip —
IAH (destination)
Gusts 12 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.