Question : How many days should you spend in Grand Rapids if you're flying in from Sioux Falls?
Answer : Of course you're not most people, but if you were, you'd stay roughly five days.
Question : Is price more important than specific travel days for you?
Answer : For the month of December, the cheapest day to fly is Wednesday. Flexibility is paramount when booking travel plans in order to keep costs down.
Question : Which airline is giving the best deals for round-trip flights from Sioux Falls Regional Airport (Joe Foss Field) (FSD) to Gerald R. Ford International Airport (GRR)?
Answer : Delta Air Lines is your best bet for finding that coveted low fare.