The distance from Petaluma to Washington, D.C. is approximately 2,400 miles. Flying from SFO to Dulles International Airport (IAD) or Reagan National Airport (DCA) is the most practical method, taking about 5 hours. Washington, D.C. is the capital of the United States and is home to many museums and monuments.
Total Distance: 3,860 km air distance.
DCA is closer to downtown than IAD.
April through May and September through October for pleasant weather.