10 Tricks for Finding Cheap Flights
Once you're within the proper ticketing window, use travel search engines to see all the flights on your given dates. Skyscanner and Momondo are two good options for multiple flight listings, which make it easy to compare prices.
If your travel dates are flexible, use online travel alerts. Sites such as Airfarewatchdog allow you to define your travel destination and range of travel dates. When prices for your desired flight drop, you receive an email with the details.
A clever way to find cheaper ticket prices is by making airlines think you are in a different country. You can do this fairly easily by using a virtual personal network (VPN) that tricks airline websites into thinking you are searching from another location. (A number of browser-based VPNs for Firefox and Google Chrome can help you do this.) By making it appear that you are in another country, you will be offered tickets in that country's currency, which may translate into a lower price, sometimes significantly so.
Another high-tech workaround is Kayak's Hacker Fares feature. Sometimes two one-way tickets end up costing less than a single round-trip ticket. Kayak's Hacker Fares calculates the cost of putting together one-way flights and determines if that's a cheaper option.
If you find that two one-way tickets are cheaper for your destination than a single round-trip, or if you are planning to fly into one airport and back home from another, you can always put together your own itinerary. The best way to see if two one-way tickets cost less than a round-trip is by visiting websites like Skyscanner and Expedia to check which airlines fly into which cities. Armed with that knowledge, you can buy tickets directly from the airlines.
After you purchase your ticket, watch to see if the price drops within the first 24 hours. If the price does indeed drop within the period, you may be able to get a full refund and then purchase the same ticket at the lower price. Check with the airline to see if refunds are possible.
Hidden city ticketing is frowned upon by airlines, but can offer substantial savings. The idea is to buy a one-way ticket that includes a layover, with the layover destination being your desired final stop. For example, for a trip from New York to Los Angeles, purchase a ticket to San Diego with a layover in L.A. This strategy does not always result in cheaper tickets, and it can take some time to check for hidden fees, but you can sometimes save some money doing this. However, it works only on one-way flights, and you are limited to carry-on luggage.