Best Western Rewards has a promotion for Air France-KLM Flying Blue member stays in select countries in Europe.
Members can earn up to quadruple miles for stays between May 1 – June 30, 2015.
You can book your Best Western stays here.
Note that the number of bonus miles that you earn is dependent of the country that the stay occurs per the table below:
- Quadruple Miles in France
- Double Miles in Germany, Luxembourg, Austria, the Czech Republic, Slovakia, Hungary, Slovenia, Croatia, Serbia, Montenegro, Macedonia and Kosovo
There is a separate offer for 2,000 Air Canada Aeroplan miles for stays until August 31, 2015 (read more here) that I believe is a better offer than this.