How much does it cost to pack a bike on a plane?

Could you please provide an estimate of the cost to pack and transport a bicycle on a commercial airline? I'm curious about the typical fees associated with this service and any additional charges that might apply, such as oversized luggage fees or specific handling requirements for bicycles. It would be great if you could also mention any airline-specific policies or discounts that might be available for bike owners. Thank you for your help in clarifying this matter.