September can be a great time to fly to Lviv from Dallas/Fort Worth Airport with a flight ticket averaging about $1,207. Cheapflights users have found deals in the month of September for as cheap as $778. The most expensive prices can be found in the month of June.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dallas/Fort Worth Airport to Lviv as you normally would.