Fare of the Day: Denver to Knoxville $140 RT nonstop including all taxes

Tracy Stewart, April 02, 2013
Fares from Washington DC:

    Fly from Denver to Knoxville for $140 round-trip, nonstop, including all taxes, on Frontier.

    Seats are scarce and only available for Tueday travel. We found seats departing April 23, returning April 30.

    For booking info, see our Fare Details.