Follow airlines on social media sites. You may feel silly adding an airline to your “liked” pages on Facebook or following them on Twitter, but the benefit of doing so is the special offers you’ll receive. Airlines want to reward regular customers and encourage them to continue flying with them, so they will often advertise special low rates and discounts via social media sites only. Follow as many airlines as you can for the best chances of getting a sweet deal.[3]
Search flights from nearby airports. This is a very simple and effective trick to find cheap flights. Sometimes flights from local airport to your destination can be quite expensive while, on the contrary, flights from nearby airports can be really cheap. For example, international flights from Seattle are quite cheap when compared to international flights from Vancouver and the distance between the two cities is only 234 km (about a two and half hour drive). So driving or taking a bus to the nearby airport is sometimes a good way to get to your destination cheaply.
If you have to be at your destination by a particular time, be careful about waiting too close to your departure time before purchasing your ticket. If you do not have your seat reserved a week before you need to be there you run the risk of not being able to get a flight. This is especially true of flights to popular destinations and during peak travel season.
If you are uncertain about the routes that these low-cost carriers fly, check them out online. For instance, JetBlue serves many of the major U.S. cities, particularly on the East Coast. It also has numerous vacation destinations in Central and South America and the Caribbean; Southwest serves most major U.S. cities as well as a few in Central America and Puerto Rico; Frontier serves most major U.S. cities as well as vacation spots in Mexico, Jamaica and the Dominican Republic; Allegiant Air's focus is transporting leisure travelers to warm vacation destinations like Punta Gorda, Tampa Bay, Las Vegas, Orlando, Los Angeles and Phoenix.

Let’s say you decide you are taking the family to Hawaii
looking to buy cheap airline tickets. These sites check
In Google Chrome or Safari, incognito is enabled by hitting Command (or “Control” if using PC), Shift, “N”. For Mozilla Firefox or Internet Explorer, hit Command (or “Control” if using a PC), Shift, “P”. This will open a new browser window where your information is not tracked, thus not inflating prices as you search. Note: if you're using an older version of OS X, open Safari then click “Safari” in the menu bar, and select “Private Browsing”.
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