From Money Crashers:

Few industries utilize price structures as confusing as the airlines. When you purchase a ticket for a bus or train you'll pay the same rate for almost any day of travel. Maybe you'll face a slight surcharge for a last-minute trip. But when it comes to airfare, rates change daily, and usually without notice.

Many factors influence the cost of airline tickets, including when and where you book, and when and where you travel. Plus, you'll still face myriad hidden travel fees for items and services like checking bags and changing your reservation.

Though the nature of airfare can be complicated, figuring out some of the reasons behind the costs and fluctuations isn't impossible. Understanding the key factors will help you save money when you travel.

Depending on your level of experience in booking tickets and flying, here are the tips to follow...

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