Based on joint service of KLM / Air France you may consider to book attractive return flights from Europe to Lima, capital of South American Peru. Cheap return flights from Benelux to Peru are now starting at €484. If interested please look for round trip flights from Luxembourgh to Lima. Abovementioned fare includes all taxes and fees as well as checked luggage.
In case of interested in this KLM / Air France promotional sale please look for flights in travel period till end of June and between September and 10th of December 2017 and January to June 2018. (Based on date of your inbound flight from South America). Blackout period around Christmas Holidays. Max stay 1 month. This offer is valid for bookings made till 28th of June 2017 or until sold out. Please refer to below booking samples to Lima if interested in this deal.
Booking samples
Luxembourg - Lima from €508 (Directly with airline)
Luxembourg - Lima for €484
Travel dates. Vary by each origin. The easiest way to find the lowest fare available are directly with the airline. They are offering +- 3 days searching view. All these European cities are well connected by many low cost airlines. To make a basic idea how to reach them from your hometown you may use service of Skyscanner. To book some afforeable accommodation in Peru you may use Booking.com or consider following promo code that offers Hotels.com or Amoma.
Booking sample of cheap return flights from Benelux to Peru from €484 here. In this case you would be flying from Luxembourg to Lima on 11th of February. Your return flight from South America to Europe would take place on 25th of February 2018.