The International airports are at Regina and Saskatoon.
Direct flights are available from the major cities in Canada as well as from Minneapolis, Minnesota.
If you are coming from overseas, you will probably want to fly in to Calgary, Alberta, then to Saskatchewan. An online trip planner you can use to plan your road trip is at Yahoo . Just fill in where you are starting from and where you want to go and it will give you miles, driving time, suggested route to take, and a map for when you get to your destination.