Punctuality: Always arrive to the airport at least 2 hours ahead of time so you can deal with any problems you might have checking in, still solve the situation and not have to rush to make your flight.
Luggage: Though some airlines are starting to charge for carry-on luggage, most aren't. Avoid the extra luggage and extra fees that go with it, just bring what you need. You can always buy whatever you need in your desired travel destination.
Travel Days (flying): Avoid flying off during the busy days or busy season. The rates on weekends and seasons like summer will often be more expensive than traveling during the winter or weekdays.
Travel Days (Landing): If you're really looking to save some money, you should try flying into a lesser known destination that's right next to the one you'll be staying in. You'll find yourself saving quite a bit of money.
Online Consolidators: Aptly describe as travel search engines, you should use these when trying to book your plane tickets. You'll find yourself having yourself a great success in your pursuit of cheap flights than any other way.
These travel tips have been brought to you courtesy of the CheapOair staff.