$109 Cheap American Airlines flights Dallas (DFW) to Seattle (SEA)

Landing cheap one-way American Airlines flights from DFW to SEA from $109 on Expedia is easy — just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $217 for your next break.**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.

Look for affordable American Airlines flights from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA) one to three months ahead of your departure date. 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 journey, the ideal day to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel 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.

The earliest American Airlines flight from DFW to SEA takes off at 7:05AM UTC-6, touching down at 9:41AM UTC-8. If you prefer to set off later in the day, the last American Airlines flight leaves DFW at 10:36PM UTC-6 and touches down at SEA at 1:06AM UTC-8. Flying early is often a good option as morning and mid-morning flights are least likely to face 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.