Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at Mar 10th. As of Feb 20th, it's showing the cheapest ticket sales at $809. That is 68% below the average price for this route, so you can spend that extra cash on an adventure rather than the flight.
Question : Do prices fluctuate more for this route than others?
Answer : Ranging anywhere from $809 to $3,228, prices for SYR to MRS do fluctuate much more than the majority of routes from the United States. However, the sooner you book, the more you'll be able to save.
Question : How long do most people stay in Marseille?
Answer : Of course you're not most people, but if you were, you'd stay roughly 10 days.
Question : Is price more important than specific travel days for you?
Answer : For the month of March, the cheapest day to fly is Friday. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.