Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at Mar 3rd. As of Feb 13th, it's showing the cheapest ticket sales at $896. That is 53% below the average price for this route, so you can spend that extra money on an adventure in Helsinki.
Question : Do prices fluctuate more for this route than others?
Answer : Ranging anywhere from $709 to $2,953, prices for SMF to HEL do change much more than the majority of routes from the United States. Remember, the sooner you book, the more you'll be able to save.
Question : How long do most people visit Helsinki?
Answer : Of course you're not most people, but if you were, you'd stay roughly nine days.