Late May brings rushing waterfalls and empty trails before the summer rush hits, while September brings crisp air, golden larch trees, and thinner crowds. Both shoulder months give you the best version of Banff and Lake Louise without the gridlock, making them the smartest times to go.
A typical trip runs about $2900 for flights, lodging, and a rental car to get you up the Icefields Parkway. Spreading that out takes some planning, which is where a card with a 0% intro window comes in handy.
That 18-month window is a hard deadline, not free money. If you still have a balance when it ends, the remaining amount will start racking up interest at the regular rate.