- A great way to compare flight prices is to visit Kayak.com.

- Enter in your from and to airports and immediately a calendar will pop up showing you fares by date.

- This is great if you have flexible travel dates and simply want to find the best price.

- If you want to travel on a weekend then click on 'weekend' and you'll see a pricing list of flights on various weekends throughout the month.

- You can customize this search by what you need like departure or arrival times, or even a specific airline.

- Another great site to compare airfare prices is Bing Travel.

- Enter in your travel details and you'll see a prediction of whether you should by now or wait.

- You can set up an alert to be notified of lower airfare prices and view a history of previous prices.