Denver to Knoxville flights from $457
Flights starting at $457. Choose between Delta Air Lines, United Airlines, or American Airlines to find the best price.
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Tips to know when travelling to Knoxville
$457 | |
$191 | |
$256 | |
$444 | |
$344 – $1128 |
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Weekly direct flights
Mondays | Tuesdays | Wednesdays | Thursdays | Fridays | Saturdays | Sundays | |
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Direct flights | 3 | 2 | 2 | 3 | 3 | 2 | 2 |
Frontier Airlines on Mondays, Wednesdays, Fridays, and Saturdays.
Allegiant Air on Thursdays, and Sundays.
United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.
Check-in for a flight from Denver to Knoxville
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Delta Air Lines | DAL | DL | Yes | Opens 24 days before flight Closes 1 hours before flight |
United Airlines | UAL | UA | Yes | No |
American Airlines | AAL | AA | Yes | No |
Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Knoxville travel tips
1) Hop on a trolley bus | The perfect way to explore downtown Knoxville is by trolley bus. There are three routes — the Green Line, Blue Line, and Orange Line, and all are very frequent. Trolley bus maps can be found in many locations. Services do not run on holidays or on UT home game Saturdays (football). |
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2) Jump on the free trolley | Jump on the free trolley from downtown to the Old City and enjoy a wander admiring the old architecture. Some of the old warehouses have been converted into microbreweries, and the old train depot is now a banqueting venue, while other buildings have been converted into galleries, restaurants and shops — breathing new life into this part of the city. |
3) Delve into Knoxville’s history | To help you to understand the history of Knoxville history, a trip to the Beck Cultural Exchange is valuable. The focus here is on the local African American History, which is unique, and it is one of the largest museums of its kind. There are some fascinating photographs in its archives, and members of staff are on hand to answer any questions. |
United States COVID-19 travel restrictions

Latest COVID-19 restrictions
United States
Travel is allowed
No proof of a negative pre-departure COVID-19 test required for vaccinated travelers
No quarantine required

Most travelers from Denver, DEN with proof of full COVID-19 vaccination can enter Knoxville, TYS.
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Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.
Learn more about COVID-19 restrictions in United States in our dedicated Stories article.
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