A sunset over a calm lake with a wooden dock extending into the water.

Cheap Flights to Knox County from $39

View $39 flight on Mon, Dec 7, 2026Opens in a new window

Popular airlines to Knox County

  • American Airlines

  • Delta

  • United

  • Allegiant Air

  • Southwest Airlines

  • Alaska Airlines

  • Lufthansa

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How much is the cheapest flight to Knox County?

Prices were available within the past 7 days and start at $39 for one-way flights and $78 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Allegiant Air
Allegiant Air
Allegiant Air
Allegiant Air
Allegiant Air
Allegiant Air
Southwest Airlines
American Airlines
Delta
United

Airports in Knox County

Prices were available within the past 7 days. Prices and availability are subject to change.

Trending flights to Knox County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Allegiant Air

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Travel information

*Flight schedules are subject to change.

*Available to One Key members.

*Flight schedules are subject to change.

*Available to One Key members.

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