Launching on January 10 the Guardian and the Observer, together with American Airlines, are offering readers the chance to buy two return flights to the Americas for the price of one. Thirty-seven destinations from across north and south America are included.

You will need to collect six differently numbered tokens - these will be printed daily in the Guardian and the Observer from January 10 to January 18. There will also be a bonus token on theguardian.com/travel, from January 10.

For full details of the offer, including destinations, fares and information on how to book, buy the Guardian on January 10 and the Observer on January 11.