Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.If you’ve been hankering for some new stamps in your passport, this may be your lucky year. Airfare price prediction website Hopper forecasts that flights to a number of international destinations may soon get cheaper, with fares dropping as much as 46% from their current prices. Hopper cites a number of potential factors for this decline, including a recent slight decrease in the cost of jet fuel as well as WOW Air’s recent bankruptcy, lowering competition amongst foreign low-cost carriers.Hopper predicts flight prices to these top destinations will drop after the month of May:Porto, PortugalCurrent average price: $628Predicted price drop: 46%Cancún, MexicoCurrent average price: $350Predicted price drop: 44%Vieux Fort, Saint LuciaCurrent average price: $591Predicted price drop: 39%Phuket Town, ThailandCurrent average price: $724Predicted price drop: 37%Havana, CubaCurrent average price: $292Predicted price drop: 35%Puerto Vallarta, MexicoCurrent average price: $318Predicted price drop: 35%Vancouver, CanadaCurrent average price: $241Predicted price drop: 31%Milan, ItalyCurrent average price: $643Predicted price drop: 30%Medellin, ColombiaCurrent average price: $344Predicted price drop: 30%Munich, GermanyCurrent average price: $832Predicted price drop: 29%Of course, these are merely forecasted price drops, but Hopper claims to predict future flight prices with 95% accuracy. You can use the “Watch This Trip” function within the app to monitor prices on your top destinations and receive alerts as soon as fares decrease. Based on other sale trends of late, most of the discounted fare dates will be for travel in late August through October, after summer peak season is over.