Due to multiple factors, expect to potentially pay more when booking in June. For low rates, July can be a great choice for travel to United Kingdom. Flights to United Kingdom from Evansville in July are about $974 on average during July, but can be found for as low as $594.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Evansville to United Kingdom as you normally would.