DL6939Delta Air Lines · SFO → YYC
live · 18m ago
Route confirmed Delta Air Lines

DL6939 San FranciscoSFO · 16:40 CalgaryYYC

DL6939 by Delta Air Lines flies from San Francisco (SFO) to Calgary (YYC) for the Fri, Nov 6 departure.

Right nowOn Time · gate C10
16:40

departs SFO · on schedule

Typical gate push+5 minmedian posted departure

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
11-05
+4 gate
11-02
+5 gate
11-01
+13 gate
10-30
−7 gate

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
SFOSan FranciscoOn-time likelySFO delay board →
YYCCalgaryOn-time likelyYYC delay board →
SFO→YYCevery 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
1.7%Chance of cancellation
+10 minTypical airport delay in this weather

Conditions 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. 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 San Francisco

Forecast

Sat 7 Nov, local date

High21°Clikely 19°C to 23°C
Low12°Clikely 11°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.

Tomorrow at Calgary

Forecast

Sat 7 Nov, local date

High13°Clikely 11°C to 15°C
Low5°Clikely 2°C to 8°C
  • Gusts to 39 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.

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 San Francisco to Calgary flights today

same route · Delta Air Lines
DL6870departs 06:00
DL6940departs 13:00
DL6889departs 17:40
DL6894departs 18:05
DL6936departs 18:05

If 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 that show a delay still operate. Rebooking usually helps only when that delay is very large. 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 4 confirmed departures · 4/4 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.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
11-05SFO 16:40 16:44 (+4)YYC
11-02SFO 16:40 16:45 (+5)YYC
11-01SFO 16:40 16:53 (+13)YYC
10-30SFO 17:40 17:33 (−7)YYC

Board 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

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: DL6939 San Francisco to Calgary on-time performance, measured from the SFO and YYC airport boards.

Canonical URL
https://proflightsearch.com/flight/DL6939
How we measure this →