Question : Should you take that vacation to San Jose in the next 30 days?
Answer : Since low prices are preferred, look at February 1st. As of January 23rd, the cheapest ticket sales are coming in 16% below the average price for this route, so you can spend that extra money on an adventure rather than the flight.
Question : How long are most people's visits to San Jose when they fly in from Amsterdam?
Answer : Of course you're not most people, but if you were, you'd stay roughly 17 days.
Question : Will you do what it takes to get the absolute cheapest flight?
Answer : Saturday is your lowest-cost day to fly in February. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.
Question : Are prices changing frequently for this route?
Answer : Flight prices for AMS to SJO change a lot more than most. However, the sooner you book, the better price you tend to get.