As per the T&Cs:
This offer expires at 11:59PM EST on December 31, 2015. Must apply the promotional
code to your Uber account prior to taking your ride. Offer only applicable to fares from
LaGuardia Airport to the five boroughs of New York City. Eligible fare includes taxes,
fees, tolls, and surge pricing. Promotional code will be provided upon entry into the
Centurion Lounge at LaGuardia Airport. Lounge entry requires presentation of a valid
Centurion Card or Platinum Card, a government-issued ID, and a boarding pass for the
arriving flight.
Only one promotional code per user. Each promotional code may be used two times for
rides within the parameters defined above. Not valid with any other Uber-issued offers.
Card Members that receive a complimentary ride from LaGuardia Airport through this
promotion do not receive Membership Rewards points or other applicable reward units
or points on the eligible fare.