Update: Some offers mentioned below are no longer available. View the current offers here.Another fantastic Amex Offer has appeared after this morning’s deal for $70 off stays at Conrad and Waldorf Astoria properties. You can earn 20,000 Membership Rewards points after spending $1,000 or more with Air Canada.At TPG’s current valuations, 20,000 Membership Rewards points are worth a whopping $380. This deal should stack with any regular bonuses you earn from American Express’s cards, like 5x points on airfare with The Platinum Card® from American Express or 3x points with the American Express® Gold Card. So if you did use the Platinum Card on a $1,000 purchase, you’d come out with 25,000 Membership Rewards or about a 48% return in the form of points.The purchase must be made directly with Air Canada and not through an OTA. The $1,000 minimum can be made in one or more transactions but you must spend $1,000+ with the carrier by December 15, 2018. It appears that the flights can be flown anytime. Consider hitting that $1,000 with the current deals on Air Canada to Tokyo.To add the offer to your card, log-in to your American Express account and scroll down to the “Amex Offers and Benefits” section (you may need to click “Load More” to see the offer). Amex Offers are targeted, so it’s possible your card won’t be eligible for the promotion. I found it on my Business Platinum Card® from American ExpressMembership Rewards points are some of the best out there because of the flexibility their array of transfer partners provide. You can transfer 25,000 points to Etihad and book American Airlines A321T business Transcon Services or fly a Star Alliance carrier like Air Canada, United or Lufthansa in business to Europe for just 55,000 miles one-way.Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Redeem your Membership Rewards points on Air Canada’s business class through Aeroplan. Image by Zach Honig / The Points Guy.You can earn Membership Rewards points and Amex Offers with the following cards:The Amex EveryDay® Credit Card from American ExpressThe Amex EveryDay® Preferred Credit Card from American ExpressAmerican Express® Business Gold CardThe Platinum Card® from American ExpressThe Business Platinum Card® from American ExpressThe American Express® Gold CardThe Blue Business®️ Plus Credit Card from American Express