Passengers in first or business class get free snacks, “Lite Bites,” or full meals, depending on the length and time of the flight. Non-alcoholic beverages are free on all flights, while economy-class passengers will pay extra for alcoholic options.

You can take face wipes, baby wipes, antibacterial wipes, disinfectant wipes, clorox wipes, lysol wipes, or makeup remover wipes on a plane in either your hand luggage or your checked luggage. You can also bring isopropyl alcohol wipes, cell phone or laptop cleaning wipes.

Solid food items (not liquids or gels) can be transported in either your carry-on or checked bags. Liquid or gel food items larger than 3.4 oz are not allowed in carry-on bags and should be placed in your checked bags if possible.

Remember, that to abide by the TSA rules for what can be packed in carry on luggage, each passenger may pack 3 ounce bottles or less, into 1 quart sized ziploc bag, and 1 bag is allowed per passenger.

Fly the cheapest days: Tuesday, Wednesday and Thursday are usually the cheapest days to fly. On international flights, weekdays are generally cheaper than weekends (but not always). Sign up for airfare alerts: This will alert you to the best airfare deals in real-time.

All liquids, gels and aerosols must be placed in a single, quart-size, zip-top, clear plastic bag. Gallon size bags or bags that are not zip-top such as fold-over sandwich bags are not allowed. Each traveler can use only one, quart-size, zip-top, clear plastic bag.

According to our data — yes. It seems most airlines launch their discounts on Monday nights, so you can pick up the best prices on Tuesday mornings. Typically, you'll save somewhere between 15 and 25 percent.

Spirit Airlines, Frontier Airlines, Hawaiian Airlines, Allegiant Air, Sun Country Airlines, Alaska Airlines, JetBlue Airways, American Airlines, United Airlines, Southwest Airlines.