Flying Blue released its latest Promo Rewards for September 2021. Destinations within and beyond Europe are plentiful this month, with options in Africa, Asia, North America, and South America. If you’re able to take advantage of these 67 discounted routes, you’ll also get added flexibility. That’s because Flying Blue has widened the available window of travel and eliminated change fees on these awards until further notice.

Capital One just announced another transfer bonus promotion, this time to Air France/KLM Flying Blue. With the promotion, you receive a 20% bonus when you transfer Capital One Miles to Flying Blue through September 30, 2021. Use this transfer bonus to fly business class to Europe for under 59,000 Capital One miles.

American Express Membership Rewards are loaded with value. Now through (at least) the end of September, you can get even more out of them. Amex is offering various bonuses when you convert Membership Rewards to 12 different transfer partners.

For a limited time, you will get a 25% bonus when you transfer American Express Membership Rewards to Flying Blue. Flying Blue is the frequent flyer program for Air France and KLM, so you also have access to the entire SkyTeam network. With this promo, you can fly in business class between the US and Europe for as few as 43k Membership Rewards points.

Flying Blue just launched a buy miles promotion flash sale, offering loyalty members the opportunity to snag miles for as little as 1.51 euro cents (1.8¢ US) per mile. This is one of the better rates we’ve ever seen Flying Blue offer. Here are some times where it can make sense to buy Flying Blue miles.

Are you an aspiring elite member of Flying Blue? Through the end of 2021, you can get double XP on all your Air France and KLM flights to move up the elite status levels. For flights between July 1 and December 31, 2021, you can attain SkyTeam SkyPriority status with as few as three long-haul flights in business class.

Through the Accor/Flying Blue partnership, you can “double-dip” on Accor stays and Air France/KLM flights. Here’s how to link your accounts so that you can start earning Flying Blue miles on your Accor stays and ALL points on your flights.

Now through April 16, 2021, Citi cardholders can convert ThankYou points to Flying Blue miles and receive a 25% transfer bonus. This opens the door to several lucrative redemption opportunities, including business class flights from the U.S. to Europe for only 43,000 points each way or intra-Europe flights from 4,000 points one-way. If you know how to utilize Flying Blue miles, this transfer bonus is an awesome opportunity.

Keeping your Air France/KLM Flying Blue miles alive is easy. Simply take a flight with Flying Blue or a partner at least once every two years, or make a purchase with a qualifying co-branded credit card at least once every two years to keep you miles alive indefinitely.

We explore the Air France/KLM Flying Blue award program and take a look at some interesting award sweet spots. Flying Blue is a valuable program given its relationship with all five major flexible rewards programs: American Express Membership Rewards, Citi ThankYou, Chase Ultimate Rewards, Capital One and Marriott Rewards.