Find cheap Frontier flights to Knoxville
RDU — TYS
Aug 26 — Sep 21
Round-trip
1 adult, Economy
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Cheapest Frontier flights from USA to KnoxvilleExplore the most affordable Frontier flight options available from USA to Knoxville. Find the lowest fares with prices last updated on July 27, 2026.
Explore the most affordable Frontier flight options available from USA to Knoxville. Find the lowest fares with prices last updated on July 27, 2026.
This Frontier deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:30 am
IAH
- TYS
1 stop11h 54m
Frontier
Mon 8/178:19 pm
TYS
- IAH
1 stop15h 15m
Frontier
Deal found 7/26![Frontier logo]()
$240
This Frontier deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/142:34 pm
DEN
- TYS
Nonstop2h 50m
Frontier
Mon 8/178:19 pm
TYS
- DEN
Nonstop3h 23m
Frontier
Deal found 7/24![Frontier logo]()
$245
This Frontier deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:07 am
DFW
- TYS
1 stop9h 17m
Frontier
Fri 8/148:19 pm
TYS
- DFW
1 stop12h 50m
Frontier
Deal found 7/24![Frontier logo]()
$270
Best Frontier flights from USA to KnoxvilleDiscover carefully curated Frontier flight deals from USA to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
Discover carefully curated Frontier flight deals from USA to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
This Frontier deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/142:34 pm
DEN
- TYS
Nonstop2h 50m
Frontier
Mon 8/178:19 pm
TYS
- DEN
Nonstop3h 23m
Frontier
Deal found 7/24![Frontier logo]()
$245
This CheapOair deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:30 am
IAH
- TYS
1 stop11h 54m
Frontier
Mon 8/178:19 pm
TYS
- IAH
1 stop15h 15m
Frontier
Deal found 7/27![Frontier logo]()
$250
This Frontier deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:07 am
DFW
- TYS
1 stop9h 17m
Frontier
Fri 8/148:19 pm
TYS
- DFW
1 stop12h 50m
Frontier
Deal found 7/24![Frontier logo]()
$270
Direct Frontier flights from USA to KnoxvilleExplore non-stop Frontier flight options from USA to Knoxville based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 27, 2026.
Explore non-stop Frontier flight options from USA to Knoxville based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 27, 2026.
This Frontier deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/142:34 pm
DEN
- TYS
Nonstop2h 50m
Frontier
Mon 8/178:19 pm
TYS
- DEN
Nonstop3h 23m
Frontier
Deal found 7/24![Frontier logo]()
$245
This Super.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/72:34 pm
DEN
- TYS
Nonstop2h 50m
Frontier
Mon 8/178:19 pm
TYS
- DEN
Nonstop3h 23m
Frontier
Deal found 7/23![Frontier logo]()
$307
This Frontier deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/72:34 pm
DEN
- TYS
Nonstop2h 50m
Frontier
Fri 8/148:19 pm
TYS
- DEN
Nonstop3h 23m
Frontier
Deal found 7/23![Frontier logo]()
$372
Last-minute Frontier flights from USA to KnoxvilleDiscover last-minute Frontier flight deals from USA to Knoxville. Data last updated July 27, 2026 and is based on user searches.
Discover last-minute Frontier flight deals from USA to Knoxville. Data last updated July 27, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:30 am
IAH
- TYS
1 stop11h 54m
Frontier
Mon 8/178:19 pm
TYS
- IAH
1 stop15h 15m
Frontier
Deal found 7/26![Frontier logo]()
$240
This Frontier deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/142:34 pm
DEN
- TYS
Nonstop2h 50m
Frontier
Mon 8/178:19 pm
TYS
- DEN
Nonstop3h 23m
Frontier
Deal found 7/24![Frontier logo]()
$245
This Frontier deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:07 am
DFW
- TYS
1 stop9h 17m
Frontier
Fri 8/148:19 pm
TYS
- DFW
1 stop12h 50m
Frontier
Deal found 7/24![Frontier logo]()
$270
One-way Frontier flights to KnoxvilleSearch for one-way Frontier flight options to Knoxville. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
Search for one-way Frontier flight options to Knoxville. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
This Frontier deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:34 pm
DEN
- TYS
Nonstop2h 50m
Frontier
Deal found 7/22![Frontier logo]()
$97
This Frontier deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/52:34 pm
DEN
- TYS
Nonstop2h 50m
Frontier
Deal found 7/22![Frontier logo]()
$112
This Trip.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/910:09 pm
IAH
- TYS
1 stop20h 15m
Frontier
Deal found 7/23![Frontier logo]()
$130
Flights to Knoxville with Frontier at a glance
Find detailed information about Frontier flights from USA to Knoxville. Explore the options provided by Frontier to plan your journey from USA to Knoxville. Data last updated July 27, 2026.
Cheapflights Insights
Find cheap Frontier flights to Knoxville
US0-TYS
DEN-TYS
IAH-TYS
DFW-TYS
How long is the flight to Knoxville with Frontier?
On average, Frontier flights from the United States to Knoxville take 1 hour 48 minutes. Flights to Knoxville from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
Frontier weekly flight availability to Knoxville
The most flights to Knoxville operated by Frontier are scheduled on a Monday (1 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (0 on average).
FAQs about flights to Knoxville with Frontier
Reviews of Frontier
See what Cheapflights users have to say about their Frontier experience.
Overview
Reviews
Frontier
2,754 reviews
Overview
Crew
6.6
Entertainment
4.3
Food
4.5
Comfort
5.4
Boarding
5.9
Recent reviews
10.0
|Jul 2026Better Food and there was no entertainment . You guys could provide head phones and wifi for the passengers
2.0
|Jul 2026Flight delayed 3 hours
6.0
|Jun 2026Nothing. Needs better seat. Need atleast water. Need wifi
4.0
|Jun 2026The flight was delayed about 3hours
2.0
|Jun 2026I paid extra for seating upfront but was very cramped and had to wait for other passengers to unboard even though I paid for seating upfront front to unboard first. Reason being they were probably not going to make their connecting flights because we had to wait an hour and a half for an open gate. I had to wait on the tarmac for as long as the flight itself took. It was a horrible experience and not only should I receive a refund for my upgrade, but I should receive a refund for the entire flight. I plan on sending a formal complaint as well as letting friends and family know that frontier is a horrible choice. It is by far a better option to pay a bit more and use a different airline. My opinion may be changed if something is done to earn my business once more. Otherwise I have nothing positive to say about my experience.
1 out of 918
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