WS1555WestJet · SEA → YYC
live · 21m ago
Route confirmed WestJet

WS1555 SeattleSEA CalgaryYYC

WS1555 by WestJet flies from Seattle (SEA) to Calgary (YYC).

Right nowNext departure today Operates daily
19:35

scheduled from SEA

The route today

live boards
SEASeattleOn-time likelySEA delay board →
YYCCalgaryOn-time likelyYYC delay board →
SEA→YYCevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
32%Chance of 15+ min delay
1.7%Chance of cancellation
+4 minTypical airport delay in this weather

Conditions at SEA and YYC 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 Seattle

Forecast

Sat 14 Nov, local date

High14°Clikely 13°C to 15°C
Low10°Clikely 8°C to 11°C
  • 91% chance of rain

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 Calgary

Forecast

Sat 14 Nov, local date

High13°Clikely 10°C to 15°C
Low0°Clikely −2°C to 2°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 Seattle to Calgary flights today

same route · WestJet
WS3751departs 14:20
WS1553departs 14:30

If WS1555 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 that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How WS1555 actually runs

Pro Flight Search has tracked every published board update for WS1555 across the SEA and YYC boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at SEA and YYC.

The verdict above is that record speaking, so it reflects how WS1555 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around WS1555? 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: WS1555 Seattle to Calgary on-time performance, measured from the SEA and YYC airport boards.

Canonical URL
https://proflightsearch.com/flight/WS1555
How we measure this →