Tip - Know when to buy and be flexable

The hardest part of booking a flight is knowing when to stop tracking fares and make that final purchase. If you're flying within the U.S. or to select international destinations, Bing Travel (Bing.com/travel) can help you reach that decision, offering fare predictions for most major cities. Just plug in your itinerary and the site will advise you either to book now or to wait, depending on whether the fare is expected to rise or drop. Check price comparison sites, which offers fare history graphs for domestic and international flights, allowing you to see whether your fare is headed in an upward or downward direction.