Not normally a Wal-Mart shopper, but saw they had a square storage tote for $17.98. Fits very tight (have to completely deflate the front tire), but I think it’ll work (I plan to wrap it on a yoga mat and add foam pads to the top and bottom). Falls under the max checked bag dimensions of 62 linear inches.
I plan on flying this spring with it and will update with how it holds up.
by Dirtbagbromton