HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Knoxville

$259+ Cheap flights from Peoria, IL to Knoxville (PIA - TYS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — TYS
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Peoria to Knoxville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Peoria to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Peoria (PIA) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$264
(American Airlines)

Popular in

August

Cheapest in

July

Average price

$283
Provider with most accurate pricing for Greater Peoria-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Greater Peoria-Knoxville McGhee Tyson flights.
Search Deals
From Greater Peoria to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Peoria to Knoxville

Cheapest flights from Peoria to Knoxville
Explore the most affordable flight options available from Peoria to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/33:30 pmPIA - TYS
1 stop6h 25mUnited Airlines
Mon 11/106:45 amTYS - PIA
1 stop6h 54mUnited Airlines
Deal found 10/25$259
This American Airlines deal was found by Cheapflights users on 10/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/216:00 amPIA - TYS
1 stop5h 43mAmerican Airlines
Mon 11/246:38 pmTYS - PIA
1 stop5h 31mAmerican Airlines
Deal found 10/26$264
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2311:02 amPIA - TYS
1 stop23h 20mAllegiant Air
Wed 11/266:56 pmTYS - PIA
1 stop16h 20mAllegiant Air
Deal found 10/25$294
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/253:56 pmPIA - TYS
1 stop5h 54mUnited Airlines
Sun 10/266:45 amTYS - PIA
1 stop6h 54mUnited Airlines
Deal found 10/25$299
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:34 amPIA - TYS
1 stop6h 58mAllegiant Air
Fri 11/149:38 pmTYS - PIA
1 stop12h 53mAllegiant Air
Deal found 10/26$309
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:23 pmPIA - TYS
1 stop14h 02mMultiple Airlines
Sun 11/97:00 amTYS - PIA
2 stops29h 19mMultiple Airlines
Deal found 10/26$360
This American Airlines deal was found by Cheapflights users on 10/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:15 pmPIA - TYS
1 stop5h 30mAmerican Airlines
Sat 12/275:23 amTYS - PIA
1 stop5h 47mAmerican Airlines
Deal found 10/25$363
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:23 pmPIA - TYS
1 stop28h 18mAllegiant Air
Sat 11/110:17 amTYS - PIA
1 stop26h 05mAllegiant Air
Deal found 10/26$416
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/219:37 pmPIA - TYS
2 stops19h 38mAllegiant Air
Mon 11/246:46 pmTYS - PIA
1 stop14h 39mAllegiant Air
Deal found 10/26$418
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/105:23 pmPIA - TYS
1 stop4h 32mUnited Airlines
Fri 11/145:52 pmTYS - PIA
1 stop19h 47mUnited Airlines
Deal found 10/26$428
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/233:30 pmPIA - TYS
1 stop6h 25mUnited Airlines
Wed 11/267:20 pmTYS - PIA
2 stops22h 41mUnited Airlines
Deal found 10/25$438

Cheapflights Fare Finder

 
Customize your flight search to find flights from Peoria to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from Peoria to Knoxville that are best for you.

Fly from

Peoria

Fly to

Knoxville

Route

Depart

Return

Price

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Mon 11/3

3:30 pm-10:55 pm

1 stop6h 25m

Knoxville McGhee Tyson

Mon 11/10

6:45 am-12:39 pm

1 stop6h 54m

$259

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Fri 11/21

6:00 am-12:43 pm

1 stop5h 43m

Knoxville McGhee Tyson

Mon 11/24

6:38 pm-11:09 pm

1 stop5h 31m

$264

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Sun 11/23

11:02 am-11:22 am

1 stop23h 20m

Knoxville McGhee Tyson

Wed 11/26

6:56 pm-10:16 am

1 stop16h 20m

$294

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Tue 11/11

3:30 pm-10:55 pm

1 stop6h 25m

Knoxville McGhee Tyson

Sat 11/15

10:50 am-2:33 pm

1 stop4h 43m

$299

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Mon 11/10

8:34 am-4:32 pm

1 stop6h 58m

Knoxville McGhee Tyson

Fri 11/14

9:38 pm-9:31 am

1 stop12h 53m

$309

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Sun 11/2

5:23 pm-8:25 am

1 stop14h 02m

Knoxville McGhee Tyson

Sun 11/9

7:00 am-11:19 am

2 stops29h 19m

$360

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Sun 12/21

5:15 pm-11:45 pm

1 stop5h 30m

Knoxville McGhee Tyson

Sat 12/27

5:23 am-10:10 am

1 stop5h 47m

$363

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Thu 10/30

5:23 pm-10:41 pm

1 stop28h 18m

Knoxville McGhee Tyson

Sat 11/1

10:17 am-11:22 am

1 stop26h 05m

$416

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Fri 11/21

9:37 pm-6:15 pm

2 stops19h 38m

Knoxville McGhee Tyson

Mon 11/24

6:46 pm-8:25 am

1 stop14h 39m

$418

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Mon 11/10

5:23 pm-10:55 pm

1 stop4h 32m

Knoxville McGhee Tyson

Fri 11/14

5:52 pm-12:39 pm

1 stop19h 47m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 11 results
1
2

Compare providers for flights from Peoria to Knoxville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Peoria to Knoxville in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Peoria, Illinois-Knoxville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Peoria, Illinois-Knoxville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Peoria, Illinois-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Peoria, Illinois-Knoxville flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Peoria, Illinois-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Peoria to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Peoria with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Peoria to Knoxville

What is the cheapest month to book a flight from Peoria, Illinois to Knoxville?

Currently, April is the cheapest month in which you can book a flight from Peoria, Illinois to Knoxville (average of $207). Flying from Peoria, Illinois to Knoxville in September is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated October 27, 2025.
See what other customers who have flown with American Airlines from Peoria to Knoxville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,033 reviews

Entertainment

6.9

Food

6.4

Comfort

7.2

Boarding

7.5

Overall

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
11,033 reviews
American Airlines
7.2
Good
11,033 reviews

Entertainment

6.9

Food

6.4

Comfort

7.2

Boarding

7.5

Overall

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from Peoria to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Peoria, Illinois to Knoxville?

    Departing from Peoria, Illinois to Knoxville will take you 5h 43m. Airlines will cover a distance of 456 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Peoria, Illinois to Knoxville round-trip?

    Our cheapest airline available from Peoria, Illinois to Knoxville is American Airlines. Our recent data shows that you can find tickets from as low as $228 on this airline. American Airlines is priced at 29% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Peoria to Knoxville that include hotel bookings?

    Yes. In addition to deals on Peoria to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Peoria to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Peoria to Knoxville.

  • Can I find deals for business class flights from Peoria to Knoxville?

    Yes. Cheapflights offers flight deals from Peoria to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Peoria, Illinois to Knoxville?

    Currently, April is the cheapest month in which you can book a flight from Peoria, Illinois to Knoxville (average of $207). Flying from Peoria, Illinois to Knoxville in September is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Morristown
Cherokee
Crossville
Corbin
Bryson City
Alcoa
Oak Ridge
Murphy

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Peoria to Knoxville

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Nashville flights
O'Hare Intl to Knoxville flights
Midway to Nashville flights
O'Hare Intl to Memphis flights
Midway to Memphis flights
O'Hare Intl to Chattanooga flights
St. Louis to Nashville flights
Midway to Knoxville flights
Moline to Nashville flights
St. Louis to Knoxville flights
Peoria to Nashville flights
Midway to Chattanooga flights
Peoria to Memphis flights
St. Louis to Chattanooga flights
O'Hare Intl to Blountville flights
Moline to Knoxville flights
St. Louis to Memphis flights
Bloomington to Chattanooga flights
Bloomington to Knoxville flights
St. Louis to Blountville flights
Peoria to Chattanooga flights
Springfield to Knoxville flights
Champaign to Nashville flights
Moline to Memphis flights
Midway to Blountville flights
Champaign to Chattanooga flights
Springfield to Nashville flights
Dubuque to Nashville flights
Peoria to Blountville flights
Springfield to Chattanooga flights
Dubuque to Knoxville flights

Top airline flying from Peoria to Knoxville

Discover the top airline that operate flights from Peoria to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$288FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.