You may want to check your American Express card account to see if you received an offer from AirBnb this week. If not, you are still in luck because it’s one of the great Twitter promotions as well. You can save at least 50% off your first $100 spent on an AirBnB rental using this offer.

You get a $50 statement when you spend $100 or more on a synched American Express credit card through December 31, 2015. You can register as many American Express credit cards to use this offer more than once if you have more than one AMEX branded card. If you are not able to stay by the end of the year just make sure it charges your card to take advantage of the offer.

To get the offer from AirBnb and American Express:

  1. Sign-up here and get a $20 Credit for your first AirBnb Stay.
  2. Click Here to Tweet #AmexAirBnB To Spend $100+ at an AirBnb on your Amex card and get $50 Back.

Repeat at Step 2 to sync every American Express credit card you have with Twitter using the hashtag.

AirBnB is allowing gift cards for this offer so you may be able to use multiple AMEX cards to purchase a gift card then use that towards one stay. $50 off every $100 to rent a house could save you up to $250 if you have 5 American Express branded cards including Bluebird and Serve cards. Update to the gift card purchase is that they do not allow you to buy yourself a gift card and will not let you redeem it in the same account of purchase.

I plan to stay in an AirBnb in California this December and will use 4 separate AMEX cards for the stay with this offer by buying a gift card first. I will also get a $20 credit. The total savings should be $220 off my stay of 4 days.

See more hotel related promotions here.