The Gospel of Luke, at Luke 24:13-35, records that Jesus appeared to two disciples who were walking from Jerusalem to Emmaus, which is described as being 60 stadia from Jerusalem (10.4 to 12 km depending on what definition of stadium is used), after his resurrection.
Answer: The distance from Buffalo to Washington is 284 miles.
Driving distance from DCA to IAD. The total driving distance from DCA to IAD is 29 miles or 47 kilometers. Your trip begins at Ronald Reagan Washington National Airport in Washington, District of Columbia. It ends at Washington Dulles International Airport in Dulles, Virginia.