The cheapest routes, San Diego to Los Cabos and San Francisco to Mexico City ($99 and $109 one-way, respectively) are both available during the month of October.
The airfare sale also features $149 flights from New Orleans to San Francisco, Los Angeles to San Jose, Costa Rica ($179 one-way), Seattle to Ixtapa ($199 one-way), and Portland to Liberia, Costa Rica for $239 one-way.
But be sure to check for deals from your departure city, too. We found flights to California from Philadelphia and Raleigh-Durham for as little as $149, and trips to Mexico from Alaska starting at $269.
All trips must be booked by 11:59 p.m. PT on July 24, and at least 21 days prior to your tropical getaway.
From Travel & Leisure