WS1553 SeattleSEA · 10:30 CalgaryYYC · 13:10
WS1553 by WestJet flies from Seattle (SEA) to Calgary (YYC) for the Mon, Sep 7 departure.
arrived at YYC · 29 min late
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by YYC (Calgary), currently flying MVFR (marginal visual). For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Seattle to Calgary flights today
same route · WestJetIf WS1553 is cancelled, these are the other WestJet nonstop flights from Seattle to Calgary on the same day, with scheduled departure times in SEA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WS1553 actually runs
Pro Flight Search has tracked every published board update for WS1553 across the SEA and YYC boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +29 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WS1553 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: CFYBK, CGUWJ, CFUCS.
Board clocks recorded as SEA and YYC published them.
Planning around WS1553? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WS1553 Seattle to Calgary on-time performance, measured from the SEA and YYC airport boards.
https://proflightsearch.com/flight/WS1553
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