American Express offers are targeted deals that you can find when you login to your Amex account. As a reminder, if you see a deal you like, I recommend adding it to your card because there is usually a limited amount available.
Google Express: Spend $60+, get 2,000 Membership Rewards Points
Get an additional 2,000 MR points when you use your enrolled card to spend $60+ in on ore more eligible transactions online at Google Express by 7/1/2018.
Since the deal is on the Amex side, you can still add promotional coupons to your Google Express order.
Hilton: Spend $100 or more, get $20 back
Get a one-time $20 statement credit by using your enrolled card to make a single purchase of $100 or more online at buyhiltongiftcards.com by 8/31/2018.
Hilton: Spend $300+, get 3,500 Membership Rewards points
Get a one-time 3,500 additional MR points when you use your enrolled card to spend a minimum of $300+ on room rate and room charges at Hilton properties by 6/30/2018.
Best Western: Spend $100+, get 2,000 Membership Rewards points
Get a one-time 2,000 additional MR points when you use your enrolled card to spend a minimum of $100+ on room rate and room charges at Best Western from 6/8/18 to 8/8/18.
If you are someone who stays at Best Western often, and you have the Chase IHG or Hilton Aspire card, you can request a status match.
KLM: Spend $1,000+, get 20,000 Membership Rewards points
Get a one-time 20,000 additional MR points by using your enrolled card to spend $1,000+ in one or more eligible transactions directly with KLM Airlines by 7/31/2018.
As a reminder, with KLM, you can also book flights from Delta and Air France on their website. Be sure to compare prices on the respective sites to see which price is better.