DL6939 San FranciscoSFO · 06:00 CalgaryYYC
DL6939 by Delta Air Lines flies from San Francisco (SFO) to Calgary (YYC) for the Fri, Sep 11 departure.
estimated arrival at YYC · local time · ~18 min from now
position updated 4m ago · checking again in 90s
Live position · flown path, last 1h 50m
Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operation0 cancelled · 9 operations tracked
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by SFO (San Francisco), 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 San Francisco to Calgary flights today
same route · Delta Air LinesIf DL6939 is cancelled, these are the other Delta Air Lines nonstop flights from San Francisco to Calgary on the same day, with scheduled departure times in SFO local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How DL6939 actually runs
Pro Flight Search has tracked every published board update for DL6939 across the SFO and YYC boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 9 confirmed departures · 9/9 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how DL6939 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as SFO and YYC published them.
Planning around DL6939? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — DL6939 San Francisco to Calgary on-time performance, measured from the SFO and YYC airport boards.
https://proflightsearch.com/flight/DL6939
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