Direct flights from Hartsfield-Jackson Atlanta International Airport (ATL) to Seattle-Tacoma International Airport (SEA) in October typically take 5 hours and 20 minutes, covering 2,182 miles. Multiple nonstop departures are offered daily, primarily by Delta Air Lines and Alaska Airlines, with earliest takeoffs around 8:20 AM EST and latest evening departures near 7:15 PM EST. Connecting options, via Dallas, Denver, or Salt Lake City, may increase total travel time to 7–10 hours. Fall schedules are consistent but check for slight weekend schedule shifts or added holiday routes.