Upvote:1
There are several travel golf bags that will protect your clubs in the hold, as bags can get thrown around quite a bit. For example, Bagboy has two hard-cases. Hard cases are recommended over soft as some airlines won't pay for damage caused to clubs in soft cases.
If you want a cheap option, some pvc piping to protect the clubs, wrapped inside a soft bag may be the budget and lighter way to carry them.
A final alternative is the international golf club shipping company ShipSticks. There's a review by Forbes on the company if you'd consider that.