DL640 San FranciscoSFO · 08:00 AtlantaATL · 15:31
DL640 by Delta Air Lines flies from San Francisco (SFO) to Atlanta (ATL) for the Thu, Oct 29 departure.
departs SFO · on schedule
board checked 11m ago · checking again in 45s
Where the minutes go
last 6 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 operationmedian arrival −14 min · 0 cancelled · 6 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SFO and ATL 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 on this route
ForecastSan Francisco to Atlanta with Delta Air Lines · Fri 30 Oct, local date
- Chance a departure is cancelled
- 0.2%1.6× usual
- Chance a departure leaves 60+ min late
- 4.7%1.2× usual
Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 8 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other San Francisco to Atlanta flights today
same route · Delta Air LinesIf DL640 is cancelled, these are the other Delta Air Lines nonstop flights from San Francisco to Atlanta 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 DL640 actually runs
Pro Flight Search has tracked every published board update for DL640 across the SFO and ATL boards: schedule changes, gate pushes and actual clocks. Usually lands ~7 min early. Based on 6 confirmed landings · 5/6 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how DL640 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: N583NW, N368NB, N590NW, N596NW.
Board clocks recorded as SFO and ATL published them.
Planning around DL640? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search: DL640 San Francisco to Atlanta on-time performance, measured from the SFO and ATL airport boards.
https://proflightsearch.com/flight/DL640
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