Buy Air France-KLM Flying Blue Miles — Up to 80% Bonus

Offer may be targeted — log in to your Flying Blue account to verify your bonus tier before purchasing. Smaller purchases unlock lower bonuses (50% at 4,000 miles). Some accounts may see a 45% discount offer instead of the bonus structure. Flying Blue miles are best used for transatlantic business class on Air France/KLM or April Promo Rewards awards. Transferring points from Amex, Chase, Citi, or Capital One is generally cheaper than buying — only purchase if you have a specific redemption and award space confirmed.