Cheap flights from Pittsburgh to Knoxville from $175

Travelers frequently search for route combinations, such as Pittsburgh and New York, Orlando, Fort Lauderdale, New Orleans, Los Angeles, Fort Myers, Providence, Denver, Jacksonville, Charleston, Tampa, Tel Aviv, Dallas, Hartford, Bogotá, Atlanta, Nashville, Las Vegas, London, Sarasota.

Travelers frequently search for route combinations, such as Knoxville and Fort Lauderdale, Houston, Tampa, Orlando, New York, Austin, Denver, Boston, South Bend, Punta Gorda, Phoenix, Belleville, Las Vegas, Chicago, Jacksonville, Barcelona, Anchorage, London, Washington, D.C., Guatemala City.

Pittsburgh is mainly served by Pittsburgh International. But there are other airports nearby, including Allegheny County Airport.

The main airport in Pittsburgh is Pittsburgh International. It is also served by Cleveland Hopkins International, Akron–Canton, Erie International, Hagerstown Regional, DuBois Regional, North Central West Virginia, University Park, Altoona–Blair County, Bradford Regional, Mid-Ohio Valley Regional.

The main airport in Knoxville is McGhee Tyson. It is also served by Nashville International, McGhee Tyson, Asheville Regional, Greenville–Spartanburg International, Blue Grass, Chattanooga Metropolitan, Tri-Cities Regional.

Currently, you can fly between Pittsburgh and Knoxville with Allegiant Air, United Airlines, BREEZE, Frontier Airlines, Southern Airways Express.

If you don’t have specific dates for your trip between Pittsburgh and Knoxville, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Traveling between Pittsburgh and Knoxville, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

There are a number of airports in and around Pittsburgh. The main one is Pittsburgh International and other nearby airports include Cleveland Hopkins International, Akron–Canton, Erie International, Hagerstown Regional, DuBois Regional, North Central West Virginia, University Park, Altoona–Blair County, Bradford Regional, Mid-Ohio Valley Regional