Due to multiple factors, expect to potentially pay more when booking in July. For low rates, December can be a great choice for travel to Odesa. Flights to Odesa from Washington, D.C. Dulles Intl Airport in December are about $898 on average during December, but can be found for as low as $694.
When flying from Washington, D.C. Dulles Intl Airport to Odesa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.