Monday is generally a great day to depart. Flying on this day could help you save up to 22%.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to St Petersburg. Flights to St Petersburg from Knoxville in November are about $1,044 on average during November, but can be found for as low as $664.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Knoxville to St Petersburg as you normally would.