Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington Dulles Intl Airport to La Paz as you normally would.
September can be a great time to fly to La Paz from Washington Dulles Intl Airport with a flight ticket averaging about $724. Cheapflights users have found deals in the month of September for as cheap as $366. The most expensive prices can be found in the month of April.