Cheap flights from Seattle to San Antonio

Looking for cheap flights from Seattle to San Antonio? We track round-trip fares from SEA to SAT around the clock and post the sharpest price drops here first. The best fare we’ve found is $213 round-trip, against a typical fare of about $239 — savings of roughly 11%. Flights from Seattle to San Antonio include a stop along the way, and the best sale fares tend to disappear within a day or two. Create a free account to see full deal details, or go Premium for an email alert the moment a San Antonio fare drops.

San Antonio is a vibrant city that blends rich history with modern attractions, making it a must-visit destination. The iconic River Walk, adorned with picturesque arched bridges and lush cypress trees, offers a unique experience that is best enjoyed in the spring and fall when the weather is mild. While summer draws large crowds, travelers can often find cheap flights from Seattle to San Antonio during the shoulder seasons, typically in early spring and late fall, when demand is lower and prices drop.

Flights from SEA to SAT typically include one stop, allowing you to enjoy a brief layover while saving on airfare. To secure the best flight deals, it's advisable to book your trip at least two to three months in advance, as this is when airlines usually release their sale fares. By planning ahead, you can take advantage of the most affordable options and enjoy all that San Antonio has to offer without breaking the bank.