Flying Blue is the combined points program of KLM and Air France. At the start of each month they discount select routes. This time KLM has round-trip flights from Chicago (ORD) to Amsterdam or Paris (AMS, CDG) for 22,500 to 25,500 points + $241 tax/fees, NONSTOP. Fare allows for carry-on bag and seat selection. Promotional ends 10/30/2023. Flights between October and March. Promo awards are refundable (with a €50 Euro fee) and changeable (with a €50 Euro fee + fare price difference).
It’s a good idea to check the Flying Blue promo landing page at the start of each month to see if anything worthwhile pops up.
Leave the departure date blank to pull up a fare calendar. If you enter in dates, it will give you only a week-long list of fares near the dates you selected.