In general when looking for the cheapest flight to Tampa, try to book your flight during the month of January for the best deal.
In general, most flyers find the cheapest time to book a flight to Tampa is about 32 days prior.
From most locations, the cheapest flights to Tampa are found on a Wednesday. Booking a Sunday departure is usually the most expensive.
Generally, when visiting Tampa, morning flights represent the best value. noon flights are likely to have higher prices.