As posted on Flyertalk, Washington-Dulles to Lima, Peru is running ~ $220 all-in, bookable any time through the end of the schedule (March, 2010). Use Kayak and enter IAD as departure city and LIM as arrival city to find it quickly.
You can get the price under $200 by flying United, Dulles – Mexico City and then LanPeru down to Lima. That fare, though, is only valid through June 17, and a Saturday stay is required.
Gary Leff is one of the foremost experts in the field of miles, points, and frequent business travel -- a topic he has covered since 2002.
Co-founder of frequent flyer community InsideFlyer.com, emcee of the Freddie Awards, and named one of the "World's Top Travel Experts" by Conde' Nast Traveler (2010-Present) Gary has been a guest on most major news media, profiled in several top print publications, and published broadly on the topic of consumer loyalty. More About Gary »
