Cheap flights from Knoxville, TN to Denver, CO

Flights starting at $63. Choose between American Airlines, Frontier Airlines, or United Airlines to find the best price.

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Nonstop flights in September

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Knoxville TYSDenver DEN
$176
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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 American Airlines, Frontier Airlines, United Airlines, Allegiant Air, and JetBlue Airways. Knoxville and Denver have 401 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from Knoxville to Denver in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Sun 17.09 - Sat 23.09

AirlineSun 17.09Mon 18.09Tue 19.09Wed 20.09Thu 21.09Fri 22.09Sat 23.09
2233224
Frontier Airlines
---1---1---1---
1---------1------

Weekly direct flights for Sun 24.09 - Sat 30.09

AirlineSun 24.09Mon 25.09Tue 26.09Wed 27.09Thu 28.09Fri 29.09Sat 30.09
1233222
---1---1---1---
1---------1------

Weekly direct flights for Sun 01.10 - Sat 07.10

AirlineSun 01.10Mon 02.10Tue 03.10Wed 04.10Thu 05.10Fri 06.10Sat 07.10
2222222
---1---1---11
1---------1------

Weekly direct flights for Sun 08.10 - Sat 14.10

AirlineSun 08.10Mon 09.10Tue 10.10Wed 11.10Thu 12.10Fri 13.10Sat 14.10
2222222
---1---1---11
1------------------

Check-in for a flight from Knoxville to Denver

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
American AirlinesAALAANoNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Allegiant AirAAYG4NoOpens 24 days before flight
Closes 1 hours before flight
JetBlue AirwaysJBUB6NoOpens 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

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