Description:When Frugal Traveler columnist for The New York Times Seth Kugel appeared on Mondays With Marlo, he said that when you're flying domestically, sites like Orbitz and Kayak are great tools for finding affordable airfare.
However, when you're traveling abroad, these sites often don't include all of the foreign airlines. Vayama.com is a great travel search engine for international flights. You can also look up the airlines that service the country you're visiting and visit their individual sites.(1:30)