Update: Some offers mentioned below are no longer available. View the current offers here.Want to see the latest flight deals as soon as they’re published? Follow The Points Guy on Facebook and Twitter, and subscribe to text message alerts from our deals feed, @tpg_alerts.Airfare deals are typically only available on limited dates. We recommend you use Google Flights to find dates to fly, then book through an online travel agency, such as Orbitz or Expedia, which allows you to cancel flights without penalty by 11pm Eastern Time within one day of booking. However, if you’re using The Platinum Card® from American Express, you’ll need to book directly with the airline or through Amex Travel portal to get 5x MR points. Remember: Fares may disappear quickly, so book right away and take advantage of Orbitz or Expedia’s courtesy cancellation if you’re unable to get the time away from work or family.If you’ve been thinking about a trip to Machu Picchu or you’re just interested in visiting South America, right now there’s some great airfares available to Lima, Peru on both American Airlines and Delta Airlines from cities on both the east and west coasts. We’re seeing flights to Lima (LIM) from New York/Newark (EWR), Boston (BOS), San Francisco (SFO), Denver (DEN) and even Raleigh-Durham (RDU) for as low as $452 round-trip.These fares are primarily available in April and May, but we did find quite a bit of fall and winter space on flights from Boston and Raleigh-Durham to Lima on Delta. In most cases there’s a Saturday night stay requirement but you don’t need any tricks to get these airfares, so just use Google Flights to find the dates you want, then book on Orbitz, Expedia or directly with the airline itself. Also, since these are international trips on legacy carriers, you’ll get your first checked bag free and even a complimentary meal during the flight.Airlines: American Airlines and Delta AirlinesRoutes: EWR/BOS/RDU/DEN/SFO to LIMCost: $452+ round-trip in economyDates: April-May and October 2017-February 2018Booking Link: Orbitz or ExpediaPay With: The Platinum Card from American Express (5x on airfare), Chase Sapphire Reserve, Citi Prestige Card (5x on airfare) or Chase Sapphire Preferred Card (2x on travel)Here are a few examples of what you can book:New York/Newark (EWR) to Lima, Peru (LIM) on American for $452 round-trip via Orbitz:Denver (DEN) to Lima (LIM) on American for $452 round-trip via Orbitz: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.Boston (BOS) to Lima (LIM) on Delta for $455 round-trip via Orbitz:Raleigh-Durham (RDU) to Lima (LIM) on Delta for $455 round-trip via Orbitz:San Francisco (SFO) to Lima (LIM) on American for $462 round-trip via Orbitz:Maximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases, such as the American Express Platinum Card (5x on flights booked directly with airlines or American Express Travel), Chase Sapphire Reserve, or Citi Prestige Card (5x on airfare) or the Chase Sapphire Preferred (2x on all travel purchases). Check out this post for more on maximizing airfare purchases.If you’re able to score one of these tickets, please share the good news in the comments below!H/T: The Flight Deal