Frontier Airlines (F9) from Knoxville to Denver

Search for the cheapest Frontier Airlines (F9) tickets from Knoxville to Denver

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Recently booked flights from Knoxville to Denver

From
Knoxville

To
Denver

Depart date
01.07.2026

Price
$445 / 1620ر.ق

Find the cheapest time to fly from Knoxville to Denver.

July

September

20:19 → 21:42

direct

Frontier Airlines (F9) 4369

TYS — DEN

M - W - F - -

20:19 → 21:42

direct

Frontier Airlines (F9)

TYS — DEN

M - W - F - -