Cheap flights from Knoxville, TN to Denver, CO

Flights starting at $65. Choose between Delta Air Lines, United Airlines, or Allegiant Air to find the best price.

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Travelers usually depart from McGhee Tyson, or Knoxville, TN - Greyhound Station when they travel from Knoxville to Denver. Book your trip to arrive at Denver International, Denver Union Station, or Rocky Mountain Metropolitan Airport. The distance between Knoxville and Denver is 1868 km. The most popular airlines for this route are Delta Air Lines, United Airlines, Allegiant Air, Frontier Airlines, and JetBlue Airways. Knoxville and Denver have 332 direct flights per week.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Direct flights3223323
Fly direct with

Frontier Airlines on Mondays, Wednesdays, Fridays, Saturdays, and Sundays.

Allegiant Air on Thursdays, and Sundays.

United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Check-in for a flight from Knoxville to Denver

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Allegiant AirAAYG4NoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
JetBlue AirwaysJBUB6YesOpens 24 days before flight
Closes 2 hours before flight
Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

Frequently asked questions

How long does it take to travel from Knoxville to Denver?
A one-way nonstop (direct) flight between Knoxville and Denver takes around 3.2 hours.
What is the flight distance between Knoxville and Denver?
The flight distance between Knoxville and Denver is 1868 km.
What airlines offer nonstop (direct) flights between Knoxville and Denver?
Several carriers operate flights between Knoxville and Denver. Airlines offering nonstop (direct) flights include Allegiant Air, Frontier Airlines, United Airlines.
What are the most popular routes to and from Knoxville?
Travelers frequently search for route combinations, such as Knoxville and Las Vegas, New York, Orlando, Los Angeles, Fort Lauderdale, Salt Lake City, Chicago, San Francisco, Houston, Sacramento, Boston, Minneapolis, Tampa, London, San Juan, Phoenix, Dallas, San Diego, Destin, Paris.
What are the most popular routes to and from Denver?
Travelers frequently search for route combinations, such as Denver and Chicago, Dallas, Minneapolis, Los Angeles, Washington, D.C., Houston, Orlando, San Francisco, Atlanta, Las Vegas, Austin, Phoenix, Philadelphia, San Diego, Miami, New York, Tampa, Detroit, Seattle, Salt Lake City.
What airports are near Knoxville?
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.
What airports are near Denver?
The main airport in Denver is Denver International. It is also served by Colorado Springs, Cheyenne Regional, Eagle County Regional, Pueblo Memorial, Laramie Regional.
What buses and trains depart from Knoxville?
A number of bus and train companies depart from Knoxville, including Greyhound.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Knoxville and Denver?
Yes, it's possible to combine different modes of transport between Knoxville and Denver thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Knoxville and Denver can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.
What is Virtual Interlining and how do I use it?
Which airlines fly between Knoxville and Denver?
When's the best time to travel between Knoxville and Denver?
What flights operate between Knoxville and Denver?
How many airports are there near Knoxville?
How many airports are there near Denver?
Is it possible to reach Knoxville by bus or train?
What time do nonstop (direct) flights between Knoxville and Denver depart?
What time do nonstop (direct) flights between Knoxville and Denver arrive?
What time do flights between Knoxville and Denver depart?
What time do flights between Knoxville and Denver arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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