While it seems that Spirit is still standing behind its decision for now, can you guess which five airlines were first to make this promise?
Which five airlines have vowed to not charge for carry-ons?
American, Delta, United, US Airways, and JetBlue
Continental, Delta, Southwest, United, and JetBlue
Alaska, JetBlue, United, US Airways, and Virgin America
Midwest, American, Virgin America, Continental, and Delta