The airlines will issue a paper ticket if requested, but charge $10 for it.

The price the airline would have charged her for the full economy ticket was $642 one way, plus taxes.

Some airlines charge a lot for one ways flights - almost the same as round trip!

Most airlines charge additional taxes and fees on their tickets.

Other airlines charge $109 to $400 for the same flight.

But without competition, established airlines often charge whatever they can get away with.

This changed during 2007 with most airlines now charging for both the first and second bag.

Now suddenly the big airlines were charging $77, $78 on that same route.

In theory, the lower the seat supply, the more the airlines can charge.

Typically, the airlines are offering some of the services free but charging for others.