Also, check bike shipping services. When I bought the HD XR1200 I happened upon a "winter special" for $400 to my door. Clearly, that was an exception and worth the coin to me.
My bro checked bike shipping when he got his F6B in '17. It was considerably more and he would still have to go there in person to pay and sign for the bike, and wait around for it to be crated (I think at an additional cost) and picked up.
It's never just the air travel. There are a lot of other costs that are often more in total than a cheap flight. Cheap flights are easy to find.
FWIW, I've shipped three bikes so far... one purchase, one sale, one ship-it-and-ride-it-home. In every case, it was $500-$600, and that includes two of those being shipped coast to coast. The overall scheme of things, $500 to get a bike to me / from me is trivial when factored against 1) my potential time lost unless I'm making it vacation time, 2) the aggravation because NO plan ever survives first contact with an enemy, and/or 3) the percentage points that shipping costs is compared to the overall purchase. I can spend $500 in air travel, hotels, gas, food, and advil, or I can stay home waiting out the cold and rain, without riding in potentially shit weather, etc.
It all just comes down to when, and if I've got other things going on.
Me? Right now? I'd have it shipped. Me? Three months from now? I'd fly and ride. Neither choice is a universally bad one.