Question : In the next four weeks, what day should you book your trip?
Answer : Since low prices are preferred, look at February 15th. As of January 16th, the cheapest ticket sales are coming in 12% below the average price for this route, so you can spend that extra cash on an adventure in Lisbon.
Question : How long do most people stay in Lisbon when they fly in from Nashville?
Answer : Of course you're not most people, but if you were, you'd stay roughly 27 days.
Question : Will you do what it takes to get the absolute cheapest flight?
Answer : For the month of February, the cheapest day to fly is Tuesday. Being flexible with your travel days garners you even more savings during your booking.
Question : Are prices changing frequently for this route?
Answer : Prices for BNA to LIS do fluctuate much more than most. The further out you book a route, the more likely you are to save.