Are you a frequent traveler? Then you must have had to deal with problems that forced you to adjust your vacation arrangements on the spur of the moment. Many times, people have been observed planning their journey far in advance and even booking cheap flight tickets. But what if something unexpected happens? You may need to rearrange your travel arrangements entirely, cancelling your previously scheduled vacation and buying a last-minute flight to another location. This is especially true when your boss requests an unanticipated business trip or a spontaneous outing with friends or family. The most challenging part of making unplanned holiday arrangements is finding low-cost last-minute flights.