$91 Cheap Delta flights San Antonio (SAT) to Seattle (SEA)

Apply the “Price (lowest to highest)” filter on Expedia to find cheap Delta Air Lines round-trip flights from $175 from SAT to SEA. Affordable one-way options from $91 are available too.**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 Seattle are often cheaper in the off-peak months of January and February. Whether you’re searching for a one-way or a return ticket, you could find a better deal then.

Start searching one to three months ahead of your travel date to get cheaper fares on Delta Air Lines flights from San Antonio Intl. Airport (SAT) to Seattle - Tacoma Intl. Airport (SEA). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Nail your timing, and you can enjoy significant savings on domestic journeys.*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.

Click on the “Nonstop” filter when browsing for direct Delta Air Lines flights from SAT to SEA. It’s also a great way to compare other carriers servicing the same nonstop journey.

Find Delta Air Lines’s earliest flights from SAT to SEA by checking our “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures also have a 20% less chance of being canceled.**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 San Antonio Intl. Airport (SAT) to Seattle touch down at Seattle - Tacoma Intl. Airport (SEA). This is the main gateway to this destination.

Offering a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a top choice for many passengers heading from SAT to SEA. What’s more, if you’re a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which you can put toward future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

In most cases, you can cancel or reschedule your flight, although additional charges may apply if you booked over 24 hours ago. Want to keep your options open? Make use of our “No cancel fee” and “Changes included” filters to find flights that won’t charge you extra if you have to alter your plans. To update your itinerary, go to “Trips,” select your flight and click on “Manage Booking” for further information.