Based on promotional sale of British Airways and their partners you may consider this interesting option to South America! Open jaw flights to Montevideo, capital of Uruguay are now available already for £365/€470. Look for an open jaw flights from Spain (Madrid, Barcelona) and returning back to London. This is fare for a round trip ticket including all taxes as well checked in luggage.. 
This Iberia / TAM / British Airways promotional sale is valid for flights departing till 30th of June then from 16th of August till 16th of December 2016. Look for flights departing mainly till end of June. Max stay 12 months. Valid for bookings made till 8th of March 2016. We are adding booking as well as travel date samples below. Hurry up if interested as this deal is definitely going to be fixed anytime soon! Plenty of routing are available making this very attractive deal to South America for majority of travelers in Europe. Please refer to below booking samples if interested in this deal.
Booking samples
Barcelona - Uruguay - London from £365/€470 (choose Skyscanner UK)
Madrid - Uruguay - London from £379/€489 (direct flight from Madrid to Montevideo, choose Skyscanner UK)
Travel date samples
14. - 26.3.
12. - 26.4.
8. - 27.5.
26.5. - 12.6.
31.5. - 13.6.
5. - 19.6. etc...
All the european cities are well connected by many low-cost airlines. For instance you may consider to use Skyscanner the cheapest flights available from your hometown. To find some affordable accomodation in South America you may consider service of booking servers such as Hotels.com or Hotelopia. We have tested the booking and managed to proceed till payment for this amazing fare.
Booking sample of cheap air tickets to South America: open jaw flights to Uruguay £365/€470! here. In this case you would be departing from Madrid to Montevideo on 26th of May 2016. Your return flight from South America back to London would take place on 12th of June 2016.
