WS1504WestJet · YYC → SFO
live · 5m ago
Route confirmed WestJet

WS1504 CalgaryYYC San FranciscoSFO

WS1504 by WestJet flies from Calgary (YYC) to San Francisco (SFO).

Right nowNext departure today Operates daily
19:55

scheduled from YYC

The route today

live boards
YYCCalgaryHigh riskYYC delay board →
SFOSan FranciscoOn-time likelySFO delay board →
YYC→SFOevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
42%Chance of 15+ min delay
1.6%Chance of cancellation
+10 minTypical airport delay in this weather

Conditions at YYC and SFO are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records 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 →

Tomorrow at Calgary

Forecast

Sun 8 Nov, local date

High14°Clikely 10°C to 18°C
Low4°Clikely 1°C to 7°C
  • Gusts to 38 kt

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at San Francisco

Forecast

Sun 8 Nov, local date

High21°Clikely 19°C to 23°C
Low13°Clikely 12°C to 14°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Calgary to San Francisco flights today

same route · WestJet
WS1502departs 14:40
WS1500departs 14:45

If WS1504 is cancelled, these are the other WestJet nonstop flights from Calgary to San Francisco on the same day, with scheduled departure times in YYC local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How WS1504 actually runs

Pro Flight Search has tracked every published board update for WS1504 across the YYC and SFO boards: schedule changes, gate pushes and actual clocks. Combined risk score: 54.2/100. Based on airport operations, weather, and cached board history at YYC and SFO.

The verdict above is that record speaking, so it reflects how WS1504 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around WS1504? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: WS1504 Calgary to San Francisco on-time performance, measured from the YYC and SFO airport boards.

Canonical URL
https://proflightsearch.com/flight/WS1504
How we measure this →