$90 Cheap American Airlines flights Washington (DCA) to Knoxville (TYS)

Set the "Price (lowest to highest)" filter on Expedia to search for cheap American Airlines round-trip flights from $189 from DCA to TYS. Affordable one-way fares from $90 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.

Start searching one to three months before your departure to score cheaper fares on American Airlines flights from Ronald Reagan Washington National Airport (DCA) to McGhee Tyson Airport (TYS). 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 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.* Get your timing right, and you can enjoy significant savings on domestic trips.*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.

Setting off from DCA at 8:19AM UTC-5, the first American Airlines flight to TYS arrives at 10:10AM UTC-5. Flying early means you'll be less likely to encounter delays or cancellations.* Not an early riser? The last American Airlines flight from DCA to TYS departs at 7:52PM UTC-5 and touches down at 9:56PM UTC-5.*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.