Question : What is the cheapest round-trip ticket you can get to Saint Louis?
Answer : Delta Air Lines is your best bet for finding that coveted low fare. They're offering fares as low as $323, while prices for other flights are as high as $615.
Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at Aug 3rd. As of Jul 17th, it's showing the cheapest ticket sales at $374. That is 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 do most people stay in Saint Louis?
Answer : Of course you're not most people, but if you were, you'd stay roughly five days.
Question : Do prices fluctuate more for this route than others?
Answer : Flight prices fluctuate less than most routes in the United States for GFK to STL. They vary from $323 to $615. Prices tend to be lower the further out you book.
Question : Would you be willing to change your travel days if it saved you money?
Answer : For the month of August, Friday is your lowest-cost day to fly. Flexibility is paramount when booking travel plans in order to keep travel costs down.