Here's how the Kayak Price Alert works:
- Go to Kayak.com here and either log in or create an account.
- Click on FLIGHTS in the navigation bar at the top of the page
- Enter in your travel dates and departure/arrival cities (make sure you have round trip selected).
- Click on "Search."
- When the new page populates, click on the green "Create a price alert."
- Click the "Save" button.
- Tadaaa, you'll be emailed when the price drops for Vegas!