We all love to travel, and until now, booking flights for the lowest price has often been a crapshoot. Sure, we can guess when we think a flight will be the cheapest, but we rarely have any hard evidence to support that guess.

Have you ever held off on booking a flight because you had a gut feeling that the price would be going down? Do you ever monitor airfare so closely that you feel that you can predict what day of the week it will be the lowest?

Well, with a new travel search engine named farecast, you can back up your inclinations with historical evidence!

Here is how they describe their patent-pending technology:

Fare History shows what the lowest fare was for your trip each day, up to 90 days ago. We monitor price changes multiple times a day and store more than 50 billion observations (and counting). We make a significant investment in data, hardware, and storage costs to provide you with real prices based on availability.

What a wonderful concept. Instead of manually checking flight prices on a weekly, daily or even hourly basis, you can now simply visit a site that is backed by 50 billion pieces of data!

If fareceast can deliver on all of their promises (and I am hoping this is the case), I can see their website changing the way that I book flights!

The site is currently in a beta stage, meaning that your search options are significantly limited (as of right now, you can only search for fares from Boston and Seattle). However, they plan to add all major US and international markets in the near future.

Whether you fly often, or even if you only fly once a year, I encourage you to check out farecast as soon as it hits your market!

P.S. For those of you in the Minneapolis/St. Paul area, please submit a request to have the Twin Cities added to their search engine! The more requests we are able to submit, the sooner we will be able to use this service!