Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at December 30th. As of December 5th, the cheapest ticket sales are coming in 20% below the average price for this route, so you can spend that extra money on a fun experience in San Salvador.
Question : How many days should you spend in San Salvador if you're flying in from Nashville?
Answer : Of course you're not most people, but if you were, you'd stay roughly 18 days.
Question : Will you do what it takes to get the absolute lowest-cost flight?
Answer : For the month of December, the cheapest day to fly is Tuesday. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.
Question : How often are prices changing for this route?
Answer : Prices for BNA to SAL do fluctuate much more than the majority of routes. However, the sooner you book, the better price you tend to get.