Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Tampico. Flights to Tampico from North Carolina in February are about $760 on average during February, but can be found for as low as $32.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from North Carolina to Tampico as you normally would.