Today (May 11, 2016) is the last day to take advantage of the 30% discount on Virgin Atlantic economy awards that brings the price of an award between select U.S cities and London down to only 12,250 Virgin Atlantic miles and $134.60 in taxes and fuel surcharges.

If you stack that Virgin Atlantic economy sale with the current deal American Express is offering-- a 30% transfer bonus of Membership Rewards to Virgin Atlantic through May 31, 2016--then you can book an award to London for only 10,000 Membership Rewards +$134.60!! Book now, but not as a roundtrip.
Why

Not sure where your miles can take you? Not sure if you have enough miles to contact the MileValue Award Booking Service?

In order to determine if you have enough miles to take that trip you’re planning, look at the award chart for the loyalty program in which you have miles. Don’t worry what partner you want to fly.

You can earn 700 AAdvantage miles by entering American Airlines' Miles for Milestones giveaway, a celebration of the 35th anniversary of the American Airlines AAdvantage® program. 35 winners will be chosen for the grand prize of 350,000 AAdvantage miles.                                                           _

Getting approximately $12 worth of miles for about five minutes of work is a great deal for me, especially since it resets the expiration clock in your American Airlines account, extending your entire mileage balance's expiration for 18 months.
What to Do
1.

Aerolineas Argentinas is cutting its Miami to Cordoba route in June 2016 and its routes from Buenos Aires to New York, Rome, and Barcelona at undisclosed dates according to these (1, 2) Spanish-language articles