$80 Cheap American Airlines flights Seattle (SEA) to San Diego (SAN)

You’ll discover budget-friendly return American Airlines flights from $159 from SEA to SAN by sorting your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $80 for a one-way trip.**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.

Browse for one-way or return flights to San Diego in January or November. You could find a cheap fare with American Airlines during these quieter months.

Begin your search one to three months before your departure to get cheaper fares on American Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to San Diego Intl. Airport (SAN). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, 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.

To see if there’s a direct trip from SEA to SAN with American Airlines or any other airlines, check the “Nonstop” filter when searching for tickets.

Sort your results by “Early Morning” and “Morning” to find the earliest departures from SEA to SAN. Taking off early means you’re less likely to experience cancellations.**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.

San Diego Intl. Airport (SAN) is the main San Diego gateway for American Airlines flights from Seattle - Tacoma Intl. Airport (SEA).

Changes are generally free within 24 hours of booking, but your airline may charge you after that. For more details about altering your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to change your plans without additional charges, apply the “Changes included” and “No cancel fee” filters when planning your next adventure.