Lowest Priced Flights to Denver on Allegiant starting at $39*

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*Modifying this information may result in a different fare

Best flights to Denver (DEN)

Knoxville (TYS)to

Denver (DEN)
Departing: December 18 2025
From
$54
Seen: 5 hrs ago
One-way
Economy

Peoria (PIA)to

Denver (DEN)
Departing: January 5 2026
From
$69
Seen: 11 hrs ago
One-way
Economy

*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply.

Cheap flights to Denver

Cheap flights to Denver
From
To
Fare Type
Dates
Price
Cincinnati (CVG)Denver (DEN)One-way
/
Economy		Departing: June 7 2026

From

$74

Seen: 1 day ago

Asheville (AVL)Denver (DEN)One-way
/
Economy		Departing: February 23 2026

From

$39

Seen: 1 day ago

Knoxville (TYS)Denver (DEN)One-way
/
Economy		Departing: December 18 2025

From

$54

Seen: 5 hrs ago

Allentown (ABE)Denver (DEN)One-way
/
Economy		Departing: May 31 2026

From

$92

Seen: 1 day ago

Peoria (PIA)Denver (DEN)One-way
/
Economy		Departing: January 5 2026

From

$69

Seen: 11 hrs ago

Appleton / Green Bay (ATW)Denver (DEN)One-way
/
Economy		Departing: May 25 2026

From

$113

Seen: 1 day ago

Destin / Ft. Walton Beach (VPS)Denver (DEN)One-way
/
Economy		Departing: June 7 2026

From

$51

Seen: 1 day ago

*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply.

Travel Tips

Bundles are packages of popular services with an added discount.

Select a bundle to:

  • Streamline the booking experience

  • Save time

  • Save money!

  • Click here for more information.

Allegiant proudly supports our military and our military veterans by offering select free benefits through the Allegiant Honors program.

  • Benefits include free checked bag, carry on, etc. Click here to learn more.

Lock in the lowest price by adding your checked and carryon bags when you book your flight.

  • By charging for carry-ons, we ensure there is space for everyone who needs it.

  • This leads to speedier boarding. Click here to see your bag options.

Cheap flights to Denver (DEN) with Allegiant Airlines

Travel to Denver

Denver is excited for your arrival. Whether you seek endless activities or plan to do some sight seeing, Allegiant Airlines can get you there. With nonstop flights and low airfare, we're here to help make your trip memorable.

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