Another method to get a lower price for your ticket is to book your ticket online
through the airlines' website or through an international airport's website. Booking your ticket online is cheaper than going through travel agencies. Moreover, you should note that last minute booking or even booking a day before your flight may not be possible. Most airlines are unable to extend the service of booking flights online beyond one or two days before departure. This will most likely be true for most international airport's online booking service too because both airports and airlines work hand in hand. If need be, make a phone call to the airline's office or travel agency if you happen to require to book your ticket during the day itself or a day before.