The big three US carriers have announced they are all banning the carriage of hoverboards amid concerns the latest craze is a fire hazard.
American Airlines, Delta and United said they will no longer accept hoverboards either as checked or carry-on luggage.
"Given the ongoing investigation by the U.S. Consumer Product Safety Commission, American has decided to prohibit hoverboards from its planes, both as checked and carry-on luggage," American spokesman Matt Miller said.
"In the interest of safety for our customers and employees, we do not accept hoverboards as checked or carry-on baggage," added United Airlines spokesman Charles Hobart.
JetBlue, Hawaiian Airlines and Virgin America have already announced bans leaving Southwest Airlines as the sole remaining major carrier still accepting the devices.
"Personal transport devices and other similar electronic devices containing dry cells or dry batteries may be transported as long as the battery size requirements are met," Southwest statement said, adding that it may reconsider this policy.
Delta cited the lack of consistent labeling of the strength of lithium-ion batteries which power the two-wheel, skateboard-sized scooters.
Numerous airlines globally have refused to accept bulk shipments of lithium-ion batteries due to the risk of overheating
