Cheap flights from Knoxville to Portland from $280

Travelers frequently search for route combinations, such as Knoxville and Las Vegas, New York, Boston, Denver, Seattle, Salt Lake City, Minneapolis, Santo Domingo, Fort Lauderdale, Guatemala City, Los Angeles, San Francisco, Orlando, Toronto, St. Louis, Portland, San Juan, Saint Thomas, Lisbon, Philadelphia.

Travelers frequently search for route combinations, such as Portland and Orlando, Raleigh, Tampa, New Orleans, Washington, D.C., Nashville, Indianapolis, Sacramento, Seattle, Detroit, San Francisco, Miami, Norfolk, Pittsburgh, Asheville, Fresno, Melbourne, Midland, Burlington, Key West.

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

The main airport in Portland is Portland International Jetport. It is also served by Logan International, Rhode Island T. F. Green Int'l Airport, Portland International Jetport, Manchester–Boston Regional, Bangor International, Portsmouth International Airport at Pease, Hancock County-Bar Harbor, Lebanon Municipal, Knox County Regional, Barnstable Municipal.

Currently, you can fly between Knoxville and Portland with United Airlines.

If you don’t have specific dates for your trip between Knoxville and Portland, 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 Knoxville and Portland, 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 Knoxville. The main one is McGhee Tyson and other nearby airports include Nashville International, McGhee Tyson, Greenville–Spartanburg International, Asheville Regional, Blue Grass, Chattanooga Metropolitan, Tri-Cities Regional

There are a number of airports in and around Portland. The main one is Portland International Jetport and other nearby airports include Logan International, Rhode Island T. F. Green Int'l Airport, Portland International Jetport, Manchester–Boston Regional, Bangor International, Portsmouth International Airport at Pease, Hancock County-Bar Harbor, Lebanon Municipal, Knox County Regional, Barnstable Municipal.