Tip # 1
To get the best deal for any commodity, you should shop and compare prices. The same applies to airline tickets. If you want cheap airline tickets then compare the price between many different airlines. This task can be easily done with some popular online travel websites, such as Orbitz, Travelocity, Expedia, Cheap Ticket, CheapAir.com and Booking Buddy.
Sometimes, you have to search different travel sites to get the best result. However, there are sites looking at 100 travel websites in addition to finding the cheapest prices. kayak.com is one of them. My favorite is itasoftware.com
Tip # 2
To get the lowest-cost airline ticket, you will need to know the historical price of your flight itinerary. Once you find the price of your ticket at or below that price, you know this is a good deal. FareCompare.com will do it for you. On FareCompare.com, you'll find cheap airline tickets, first-class discount airline tickets, and the easiest plane travel planning tools. FareCompare.com monitors flight fares, so you will be the first to line up to get the best deal on your trip for a cheap flight. On their results page, under Quick Links, you can view historical deals and subscribe to the "Alert me when prices drop" feature. FareCompare.com will email you when your travel itinerary is lowered.
Tip # 3
You can get an even cheaper airline ticket using the airline voucher, others may call them a voucher. Northwest Airlines distributes the voucher to the general public. I used to get it in the Fal Buck coupons envelope. Continental Airlines grants the dollar a voucher on the basis of a round trip. Recently they are partners with Chase Bank to run the promotional offer. United Airlines compensates customers with a coupon of $ 50, $ 75 and $ 100.
People place these coupons on eBay, sell.com, craigslist in exchange for good or cash. Some of them have no cash value (just like a grocery voucher), you pay for their time to collect vouchers and send them to you.