There are
2,140 mi
from Wheaton, IL to Sunnyvale, CA
That's the driving distance. It would take 1 day 12 hours to go from Wheaton, Illinois to Sunnyvale, California.
The flight distance (direct flight from Wheaton, IL to Sunnyvale, CA) is 1,820.19 mi.
2,140 mi = 3,443.50 kms