Another popular route is between Seattle and Los Angeles, spanning 954 miles. This two-hour-45-minute flight is operated multiple times daily by Delta using its Boeing 737-900ER fleet among other aircraft. Other airlines like American Airlines, United Airlines, and Alaska Airlines also service this route with narrowbody jets.
The Seattle to Palm Springs route measures 987 miles with nearly three-hour flights operated several times daily by Delta's Boeing 737-900ER fleet that can accommodate up to 180 passengers across three classes.
Delta connects its Seattle hub to Minneapolis St. Paul International Airport over a distance of 1,399 miles with multiple daily flights lasting around three hours and twenty-five minutes. "Among multiple aircraft types," some are operated using the carrier’s Boeing 737-900ER fleet.
The only international destination on this list is Los Cabos in Mexico at a distance of 1,814 miles from Seattle. This four-hour-and-twenty-five-minute flight is serviced daily by Delta's Boeing fleets alongside Alaska Airlines' operations on the same route.
Seattle to Detroit Metropolitan Airport covers a distance of approximately 1,927 miles with four-hour-and-twenty-minute flights operated by Delta’s Boeing fleets that can carry up to "180 passengers in three classes."
Finally, the longest route listed connects Seattle with Atlanta’s Hartsfield-Jackson International Airport over a span of about "2,182 miles." The one-way flight takes roughly four hours and fifty minutes utilizing various aircraft including the Boeing models mentioned earlier.
Overall these routes highlight how important SEA has become within DELTA's network strategy especially given it serves as both primary gateway into/out-of PNW region while also acting crucially towards maintaining competitive edge against rivals like ALASKA AIRLINES whose own strong presence there cannot be ignored either due largely historical ties back when merger happened between them & VIRGIN AMERICA during mid-late decade past already...