WS1503 San FranciscoSFO · 13:00 CalgaryYYC · 16:40
WS1503 by WestJet flies from San Francisco (SFO) to Calgary (YYC) for the Tue, Sep 8 departure.
arrival expected at YYC · on schedule
board checked 4m ago · checking again in 45s
Where the minutes go
last 3 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SFO and YYC are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. 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 →
How WS1503 actually runs
Pro Flight Search has tracked every published board update for WS1503 across the SFO and YYC boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +28 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WS1503 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: CFRYV, CFEWJ, CGMXB.
Board clocks recorded as SFO and YYC published them.
Planning around WS1503? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WS1503 San Francisco to Calgary on-time performance, measured from the SFO and YYC airport boards.
https://proflightsearch.com/flight/WS1503
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