FLIGHT FAQ How do I find the lowest fares?   best-priced trips on my dates: this fare search feature searches for the lowest available fare for the exact dates that you would like to travel. It also considers your desired travel times and provides options as close to those times as possible. This option may be used for both domestic and international travel. My dates are flexible: this low fare search feature is now available for all domestic and international travel. The point and click calendar interface takes all the guesswork out of trying to understand fare rules. In some cases, the lowest fares may be sold out for your desired travel dates, but we'll show you other travel date options. If you are flexible, this option is for you. If I store a credit card number in my profile, will any charges be automatically billed to my card?   No. We won't charge anything to your credit card unless you decide to make a purchase and specifically tell us to charge it to your card.