We flew out of Detroit with Spirit Airlines Mon to Mon. cost in CAD worked out to be around $161 per person one way. This is with all extra costs. If the price is right we will use them again. This was our 7th March break trip and the highest that we have paid! We always travel to the States for our flights and never had issues with weather. My friend flew out of Toronto on the same dates and used a package deal with Sunwing (includes airfare, accommodation, and rental car) It worked out to be a really good deal!