Search for last minute airfares on travel websites. All the major online travel booking websites such as Expedia and Orbitz offer last minute airfare deals to certain destinations. Airline consolidator websites such as Bargain Travel and Last Minute Travel focus on the best last minute airfare deals. Bargain travel will allow you to compare last minute fare deals on several competitor sites, to ensure that you are getting the best deal.
Be flexible on where you want to travel. Most of the last minute deals on airfare are for specific locations. Depending upon the season, and where the flight is originating from, you can find very cheap last-minute fares. For example, if you want to get away sometime in February, you may be able to find a cheap airfare to Hawaii, because that is during a low travel season and tickets will be much cheaper accordingly. If you're open to traveling anywhere that offers a cheap plane ticket, you will save a lot of money on your vacation.
Travel in the middle of the week. The weekends are almost always the busiest and thus most expensive time to fly somewhere. The middle of the week is considerably cheaper because less people can take off during the week. A flight on Tuesday, Wednesday and Thursday are the best days for getting a cheaper flight.
Choose a really early or really late flight. Typically the cheapest flights during the day are the very first flights out or the very last flights late at night. These flights are generally less desirable because of how early you would need to get up to catch the flight or how late you would arrive at your destination. If you don't mind dealing with the inconvenience however, these flights are almost always cheaper than the rest of the day's flights.
Sign up for last minute fare alerts. If you don't see cheap tickets to somewhere you would like to go right now, sign up on the travel websites to be alerted when new flight deals originating from your home airport become available. On Kayak.com for instance, you can set daily email alerts when the price drops for a flight that you want. Follow the website FareCompare on Twitter to receive last minute flight deals.