Can someone please tell me what the estimated driving time is from Castle Rock WA to the location of the Boeing Factory tour?
Thank you for your help.
405 North is a great route because it crosses I-5, becomes the Mukilteo Speedway and heads right out to the factory area.
I'd allow an hour to get there from the Seatac area. If it is during rush hour, take 405 (if you have that passenger) to use the HOV lanes.
From Castle Rock to Seatac you can have bad traffic at McChord/Lakewood and downtown Tacoma.