Look into the airline(s) you're flying. I make it plural because if you fly a few different partner airlines to get to Bali (which is usually the case), the baggage policy of the airline where you'll be flying the longest leg applies. This is a fairly recent IATA policy and cause of lots of debate/confusion with airline personnel at many airports around the world. So say your flight originates from Boston with American Airlines and you fly to LAX to transfer to Singapore Airlines which will take you to Bali. Singapore Airlines will be the dominant airline for your entire trip. They only charge $88 to fly with your bike each way. That's what American should charge you to fly with your bike all the way from Boston to Bali instead of their regular $150 fee each way. If your dominant airline has a really lenient "bikes fly free" policy, then you really lucked out. Again, you need to be ready to show these written policies to the agent at the check-in counter (being pleasant about it) who normally has to check with a supervisor. I learned about all this just a few months ago on
FlyerTalk. Hope it helps!