Traveling with a snowboard isn’t usually an issue for airlines, as long as you check your snowboard and it adheres to the weight and size restrictions imposed by the airline. If you're also traveling with snowboard boots, pack them in a separate boot bag.
Pro tip: nearly every airline will allow you to check a boot bag and a board bag together, meaning you get to check two bags for the price of one. This is great because most boot bags have extra room to store your helmet, hat, goggles, etc. Airline guidelines for checking a snowboard involve measuring the width, height, length, and weight. Different airlines may have varying regulations, so make sure you read up on the rules before flying.