Question : How many days should you spend in Marseille if you're flying in from San Antonio?
Answer : Of course you're not most people, but if you were, you'd stay roughly 10 days.
Question : Will you do what it takes to get the absolute lowest-cost flight?
Answer : Tuesday is your cheapest day to fly in December. Flexibility is paramount when booking travel plans in order to keep costs down.
Question : Do prices change more for this route than others?
Answer : Prices for SAT to MRS do fluctuate a lot more than the majority of routes. Remember, you can save by booking further in advance.