Answer: Using Google Maps one is able to calculate the distance as well as the driving travel time. The distance between Seattle, Washington and Patterson, California is 839 miles. The travel time is 13 hours and 46 minutes.
Answer: The driving distance between Los Angeles, CA and Seattle, WA is approximately 1135 miles. The driving time would be approximately 19 hours if you were to travel non-stop in good driving conditions. (The driving time does not take into consideration conditions which may extend trip time such as weather, road work and rush hour traffic in urban areas.)
Answer: 1,235 miles taking I-5 SOUTH, via I-205 SOUTH to bypass PORTLAND (EXIT 7 off I-5 in WASHINGTON), and via I-405 SOUTH to bypass LOS ANGELES (EXIT 158 off I-5 in CALIFORNIA). NOTE: at the south end of the I-405 L.A. bypass, you can connect to I-5 SOUTH towards SAN DIEGO two ways: you can either go to I-5 SAN DIEGO directly from I-405, or you can connect to I-5 SAN DIEGO indirectly via the TOLL ROAD (SR-73 SOUTH at EXIT 10 off I-405), which provides a shorter, quicker, easier, and an all-around smoother connection to I-5 SAN DIEGO.