Only $18 to fly from LAX or San Diego to Monterey? Believe it! Allegiant Air has spectacular specials on round-trip airfare from both destinations to Monterey Airport. (Note to locals: it works the other way, too!) As travel site Airfare Watchdog reports, there's a couple of steps you need to take to get this great airfare. On the front page of the Allegiant site, in the yellow "Start Your Vacation Package" window, click on "Flight Only." Select your departure and destination cities and dates. Then click "Search." You'll then see a calendar showing when these crazy-low fares are available. This deal will sell out quick, so take advantage while you can! Once you've booked your flight, visit our deals page to get excellent rates on resorts, hotels, and bed and breakfasts, as well as deals on attractions, dining, spas, and other area activities!