Some airlines are more relaxed about carrying bikes. It depends on the type of aircraft, whether Boeing or Airbus and what size cargo containers the plane carries. Most airlines restrict tourist passengers to a limit of 20kgs for check-in luggage. Emirates tourist class flights now allow a total baggage allowance per person of 30kg. This is enough for the bike and as much gear as you really want to put on a bike. If you want extra warm clothing just wear it onto the plane.The bike does have to be packed thoroughly and compactly to meet the requirements of the airline. This is how to do it.

packed ready to bag

This is the Thorn Raven disassembled and packed together ready to put in the bag.

The sequence goes something like this

packed ready to bag

I made our own bike bags out of strong canvas that we had used several years ago as our cooking tent when we were 4 wheel driving. I sewed and roped them by hand. The two rope handles are tied directly to the bike frame and come out through cringles in appropriate places.As we carried the bags with us this year we found that they came in very useful as groundsheets for sitting outside the tent or even for a lunch stop. We also had several very cold nights in the tent when we used them as overbed covers for extra warmth.