The elevation varies, as Skyway is a small region in unincorporated King County. Elevation ranges from around 25' (at the edge of Lake Washington) to roughly 450' above sea level on some of the high ridges. Highest point on Renton Ave is ~420, highest point on SR-900 is ~220'.
Yakima, WA has an elevation of approximately 1,064 feet (325 meters) above sea level.
According to Gamin GPS Spokane Valley, WA. is at an elevation of 2003 ft. give or take.
Wilbur's elevation is 2,170 feet (662 meters).
Tacoma's elevation is 243 feet (74 meters).
Per City-Data.com, the elevation of town hall for Covington, WA is 352 ft. above sea level.
Tacoma
130 ft.
The elevation of Spanaway, WA is approximately 330 feet above sea level.
75ft based on Wikipedia. ^^
A. Spokane
2400 feet (source wikipedia)
The Tagalog term for "Skyway" is "daang-laylayan".