There may be a company out there who still makes hard T/D bow cases, luckily I still have mine.
What you can do is purchase a large duffle that rolls. Say 42" long, 18" wide. Not only can you place your hunting clothes, boots etc..in there, you can also fit 1 dz broadhead arrows in a arrow box. Take the bow apart, wrap it in thin bubble wrap, limbs separate from riser. Place your bow between your clothing along with your quiver.
Pack your hunting accessories in a large zip lock bag. I believe Cabelas sells these large wheeled duffle bags and they work fine. This way you only check one bag in, not a duffle and bow case. You will not be allowed to carry the bow, arrows or accessories on the plane with you.