American Express is a DansDeals.com advertiser.
Link your Lyft account with your Delta account and you can earn 1 mile per dollar spent on all Lyft rides. Additionally you’ll earn 3 miles per dollar spent on all Lyft rides that begin or end at an airport through 8/31/17.
If it was United miles, maybe this would make me use Lyft more often 😉
This is similar to Uber’s program that awards 1 Starpoint for every $2 spend on Uber and 4 Starpoints per dollar spent on Uber while you are staying in a Starwood hotel.
Of course you can also earn 3 points per dollar by charging your Lyft or Uber ride to a Sapphire Reserve card.
All AMEX Membership Rewards cards also award a bonus point per dollar for Uber spending, though not for Lyft spending. The Platinum Card® from American Express gives $15 in free monthly Uber credit and $35 in free Uber credit every December.