Before I had my residency, (and after) I would book the cheapest return charter flight I could lay my hands on - air only. There are certain times of the year you can get some really good deals such as just after Easter, Labour Day, etc.
Of course, I couldn't use the return portion because I was always staying here for several months when I came down. When it was time to go back, I would go to Air Transat, or other charter airlines and get a one-way return ticket that they sell because of so many like me who don't use their return.
In the old days, it was pretty inexpensive, however it seems every time I want to do it now, the price has gone up and I had to pay $500.00 the last time.
The total return is still cheaper than buying a one-way ticket coming down and then trying to get back again on a one-way.
West Jet is the way to go now because they have pretty reasonable fares if you are flexible as to your dates and you can book and pay for your return and change it for $40.00 if you need to.
Also, you are allowed a LOT more weight on your luggage and if you have more than 2 pieces, just pay $75.00 per piece, no matter what it weighs.
All the other airlines get you for every single ounce it seems, of overweight luggage and can be really expensive.
We need a lot more competition coming and going here because the few airlines that do come charge way over what they charge for the same distances to other continents or countries. Heck, I could spend a week or 10 days in Europe for what it costs to coime here, one way!