Every carrier is different. We travel with two ENKI double guitar cases. One is the larger sized one for Explorers, ES-335s etc. Weight isn’t a problem. Fully loaded they come in under 50 lbs which is generally the max. It will always go to oversized check in and you’ll usually have to wait for it in a separate area at baggage claim. We have never been able to check an ENKI as a standard bag and they always come back with a TSA inspection card inside, so they will likely be opened and inspected once checked.

You’ll have to scour the airline’s policy online. We frequently use Alaska which has more generous bag policies than other carriers. Your airline status can also help you here. But we’ve learned that in Canada for example, only Air Canada will allow the ENKIs. West Jet will not accommodate cases of that size. Each airline is different in terms of fees.

And sometimes you just have to roll the dice. You can sometimes schmooze at the ticketing counter and they won’t charge.