Cost: $400+ in basic economy ($490+ in regular economy)
Dates: from May to August 2018.
Routes: SFO/ATL/BOS/JFK/LAX to PDL
Pay With: The Platinum Card from American Express (5x on airfare), Premier Rewards Gold Card from American Express, Chase Sapphire Reserve, Chase Sapphire Preferred (2x on travel) or Citi Prestige (3x on airfare plus excellent trip delay insurance).
Round Trip Atlanta to São Miguel for $454 in basic economy
Round Trip New York to São Miguel for $400 in basic economy
Round Trip Los Angeles to São Miguel for $534
Round Trip Boston to São Miguel for $480
Round Trip San Francisco to São Miguel for $529 Round Trip Los Angeles to São Miguel for $534
Max the Purchase
Use a credit card that earns additional points on airfare purchases, like Chase Sapphire Reserve, American Express Platinum Card (5x on flights booked directly with airlines or American Express Travel), the Chase Sapphire Preferred Card (2x on all travel purchases) or American Express Premier Rewards Gold or Citi Prestige (3x on airfare).