For those located in NA wanting to take advantage of this deal without paying too much to getting to GVA, we may have a semi-comfortable one-way option here
http://www.routesonline.com/news/38/...-launch-in-s18
https://primeraair.com/
For $700 CAD ($550 USD), you can get to CDG and take train to GVA, and combine current MU's CRK/CEB deal back to Canada.