In 2026, the Pelican Vault V100 remains the gold standard for flying with a pistol due to its crushproof high-impact polymer construction and heavy-duty latches. To meet TSA and airline requirements, a case must be "hard-sided" and "locked with a key or combination in a manner that prevents unauthorized access." The Pelican Vault features two reinforced padlock holes; for maximum security, you should use high-quality, non-TSA locks (since only you, the owner, should have the key). Another top-tier option is the Case Club Waterproof Pistol Case, which comes with pre-cut foam for the firearm and magazines, ensuring nothing shifts during the rough handling of checked baggage. For those looking for a more "low-profile" look, the Plano All-Weather 2-Pistol Case offers an excellent balance of affordability and protection with a continuous Dri-Loc seal to prevent moisture buildup in the cargo hold. Regardless of the case brand, the "best" case is one that is specifically sized for your firearm to prevent it from sliding and is robust enough to withstand being at the bottom of a 50-bag pile.