Look at BA, Lufthansa and Airfrance. As u can understand, you have several hops to make to cover France and Switzerland. In France I would recommend at least 4 days at Paris and a few days in the south, in the french Riviera ( take a flight from paris to Nice, easyjet gives as low as 120 E return tickets for this ). In switzerland, Zurich is a must. You could consider Geneva and Interlakan also, but to get an idea of what you really want to see, check out the Lonely Planet guide of switzerland. It is such a beautiful country, you need to be really sure of which place to go before embarking upon the journey. U have said family, does it include children? If they are less then 4 yrs old, consider taking a light stroller, there is a lot of walking around to do, often uphill and kids wont like doing those !