Delta Airlines have round trip airfares travelling to and from Nashville TN (BNA) and Seattle (SEA) for $226, nonstop. This is a basic economy fare, with an option to upgrade to main cabin. Delta's basic economy allows one carry on bag in addition to a small personal bag. There is an option to upgrade to a main cabin for $30.
Departs BNA: Aug 14, 22; Sept 11, 18, 19, 25
Departs SEA: Aug 7, 8, 15; Sept 4, 11, 12, 18, 25
Returns: most tues and saturday, generally 7-day stay works
Use dates and book it on Expedia [expedia.com]
, Priceline [priceline.com]
, Orbitz [orbitz.com]
or Delta Airlines [delta.com]
. Bundling hotel with airfare will save money.