$116 Cheap Delta flights Seattle (SEA) to San Antonio (SAT)

Apply the “Price (lowest to highest)” filter on Expedia to search for cheap Delta Air Lines round-trip flights from $207 from SEA to SAT. Affordable one-way options from $116 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Delta Air Lines flights to San Antonio are typically cheaper in the quieter months of January and September. Whether you’re searching for a round-trip or one-way ticket, you could find a better deal then.

Look for affordable Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to San Antonio Intl. Airport (SAT) one to three months ahead of your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and itinerary, the best day to book a domestic flight is generally Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Enter your dates, press search and select the “Nonstop” filter on Expedia to find any direct flights from SEA to SAT with Delta Air Lines or other carriers.

To find the earliest departure from SEA to SAT with Delta Air Lines, filter your results by “Morning” and “Early Morning.” Choosing an early flight generally means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to San Antonio come in to land at San Antonio Intl. Airport (SAT). This is the main entry point to this destination.

Delta Air Lines makes flying from SEA to SAT more enjoyable with an excellent in-flight experience and a rewarding loyalty program. You may even earn points with Delta SkyMiles. Be sure to sign up to Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the ticket type you purchased, a fee generally applies if you cancel or reschedule your booking more than 24 hours after it has been confirmed. To find flexible fares, select our “Changes included” and “No cancel fee” boxes when looking for flights. For more details on changing or canceling your reservation, visit “Trips,” select your flight and tick “Manage Booking.”