The trip from Reston to San Diego is a long-haul flight. You can fly from Dulles International Airport to San Diego International Airport. The flight duration is approximately 5.5 hours. Driving is not recommended due to the distance and time required.
Total Distance: 4,300 km driving distance; 3,700 km straight-line air distance.
San Diego International is very close to downtown.
March to May or September to November for pleasant weather.