Anyone know of a good website to find cheap flights? I keep going to expedia, travelocity, and those ones but the prices they want are outrageous. Im trying to find a flight to San Juan from either Philly, Newark, JFK, La Guardia, or Dullues. And everything I am finding it like $500 per person round trip. Thats way to expensive, I am kinda looking for something around $500 for two people.