Cheap flights from Denver to Knoxville

One-way fares from $133 · DEN → TYS · prices found by travellers in the last 48 hours

Compare all dates Knoxville → Denver
Cheapest fare
$133

Allegiant Air · Thu, Nov 12

Cheapest month
November

from $133

Direct flights
Yes

Allegiant Air

Flight time
2h 49m

1,890 km

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Cheapest month to fly from Denver to Knoxville

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $133

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

Allegiant Air
Depart08:30 Thu, Nov 12DEN → TYS 2h 49m · Direct
$133one way, per person
View deal
Frontier Airlines
Depart19:10 Fri, Nov 13DEN → TYS 7h 29m · 2 stops
$274one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Knoxville

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in KnoxvilleCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in KnoxvilleTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in KnoxvillePre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in KnoxvilleCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Denver to Knoxville

Denver (DEN) and Knoxville (TYS) are about 1,890 km apart. Direct flights take around 2h 49m, and recent direct fares were with Allegiant Air. Over the next few months, one-way fares start from $133, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Denver to Knoxville?

The cheapest one-way fare we've seen recently is $133 with Allegiant Air, departing Thursday, November 12, 2026.

What is the cheapest month to fly from Denver to Knoxville?

November 2026 currently has the lowest fares, from $133 one way.

Are there direct flights from Denver to Knoxville?

Yes. Recent direct fares were with Allegiant Air.

How long is the flight from Denver to Knoxville?

A direct flight takes about 2h 49m. Denver and Knoxville are around 1,890 km apart.

Which airlines fly from Denver to Knoxville?

Recent fares on this route were with Allegiant Air and Frontier Airlines.

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