Question : What is the cheapest round-trip ticket you can get to Sioux Falls?
Answer : American Airlines is your best bet for finding that coveted low fare. They're offering fares as low as $316, while prices for other flights are as high as $1,007.
Question : If your plans are flexible, have you considered changing your departure day?
Answer : The cheapest day to fly in July is Wednesday. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.
Question : How long do most people visit Sioux Falls?
Answer : Of course you're not most people, but if you were, you'd stay roughly six days.
Question : What day in the next four weeks has the best fares?
Answer : Jul 19th has seen bookings (as of Jun 26th) as cheap as $331. That comes in 37% below the average price for this route. Saving on flight fares means you'll have more money in your hand for the trip.
Question : Do prices fluctuate more for this route than others?
Answer : Flight prices are fluctuating more for this route than most routes in the United States, as they're ranging from $316 to $1,007. The further out you book a route, the more likely you are to save.