First, a warning. The time of year these flights are, it's about 100-105F. It will be HOT and HUMID. If you can deal with that, or are just taking a weekend in the air, you can get about 3.34 CPM on a $600 fare via Etihad, who partners with American, and a couple of other programs people might be interested in. Link to fares are here: http://www.kayak.com/flights/CHI-MAA/2012-09-28-flexible/2012-11-11-flexible Note, there appears to be ONE flight per day at this price, and it's about half of anyone else's. I assume this is a sale or a mistake. Be sure you want to go. Partners: http://www.etihadairways.com/sites/...st/PartnerDetails/Pages/Partner-Airlines.aspx ANA and Air New Zealand are on the list. As is BMI. Not sure if you'd be able to earn and transfer that to BA Avios, but it'd be an interesting way to earn miles if it worked.