Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at December 10th. As of November 28th, the cheapest ticket sales are coming in 19% below the average price for this route, so you can spend that extra money on an adventure rather than the flight.
Question : How long are most people's visits to Boston when they fly in from Sioux Falls?
Answer : Of course you're not most people, but if you were, you'd stay roughly seven days.
Question : If your plans are flexible, have you considered changing your departure day?
Answer : The best day to fly on a budget this month is Thursday. 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 this trip tend to change a lot more than others. The further out you book a route, the more likely you are to save.