Just remember the longer you wait months away and knowing you have a trip to make less then you think.. expedia will higher the price on the actual date your willing to come. Not always works out this way but i personaly notice i paid 2500 2months ago and today date im going is around roughly 2800.00 dollars. So i saved alittle and better off pay in advance. At least i dont need to worry about paying airline tickets then. All booked and done with.