Flights from Baltimore to Rhodes lean towards being more expensive in August. Prices are generally better when you fly from Baltimore to Rhodes in September, with the cheapest ticket starting at $584.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Baltimore to Rhodes as you normally would.
BWI and RHO are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. BWI to RHO refers to a flight route from Baltimore/Washington Airport to Rhodes Diagoras Airport.