For example, some airlines may include a checked bag for free on a long-haul flight (such as a trans-Pacific route), but a ...

Carry-on bags are not included in the base fare and incur additional fees. The maximum dimensions for a carry-on bag are 10 x ...

Similar to checked bag size restrictions ... be used as a carry-on suitcase when flying with the following airlines: Frontier, Southwest and Sun Country. However, if you're shopping for new ...