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Knoxville

$289+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — TYS
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
1 adult, Economy
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Cheap 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 July 23, 2026.

This United Airlines deal was found by Cheapflights users on 7/20. 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 8/155:45 am
PIA
-
TYS
1 stop6h 33m
United Airlines
Wed 8/197:00 am
TYS
-
PIA
1 stop4h 06m
United Airlines
Deal found 7/20$289
This American Airlines deal was found by Cheapflights users on 7/18. 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.
Sat 8/156:47 pm
PIA
-
TYS
1 stop4h 06m
American Airlines
Sat 8/227:04 am
TYS
-
PIA
2 stops8h 16m
American Airlines
Deal found 7/18$294
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Wed 8/51:13 pm
PIA
-
TYS
1 stop6h 31m
United Airlines
Sun 8/96:00 am
TYS
-
PIA
1 stop5h 09m
United Airlines
Deal found 7/21$334
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 8/2710:41 am
PIA
-
TYS
1 stop5h 17m
United Airlines
Sun 8/307:00 am
TYS
-
PIA
1 stop4h 06m
United Airlines
Deal found 7/21$359
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Fri 9/2510:06 am
PIA
-
TYS
1 stop7h 39m
Allegiant Air
Sun 9/277:00 am
TYS
-
PIA
1 stop11h 29m
Allegiant Air
Deal found 7/20$360
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Thu 7/234:22 pm
PIA
-
TYS
1 stop5h 01m
American Airlines
Sat 7/256:22 am
TYS
-
PIA
1 stop3h 55m
American Airlines
Deal found 7/19$379
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 9/245:50 pm
PIA
-
TYS
1 stop25h 15m
Allegiant Air
Sun 9/277:00 am
TYS
-
PIA
1 stop11h 29m
Allegiant Air
Deal found 7/20$386
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Tue 8/410:44 am
PIA
-
TYS
1 stop5h 16m
United Airlines
Sat 8/86:00 am
TYS
-
PIA
1 stop5h 09m
United Airlines
Deal found 7/20$389
This American Airlines deal was found by Cheapflights users on 7/21. 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.
Mon 12/285:30 pm
PIA
-
TYS
1 stop5h 29m
American Airlines
Tue 1/57:13 pm
TYS
-
PIA
1 stop5h 57m
American Airlines
Deal found 7/21$391
This American Airlines deal was found by Cheapflights users on 7/20. 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.
Thu 8/274:24 pm
PIA
-
TYS
1 stop5h 34m
American Airlines
Sun 8/306:21 pm
TYS
-
PIA
2 stops6h 38m
American Airlines
Deal found 7/20$396

Find 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 July 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(United Airlines)
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

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 July 23, 2026.
Use the filters below to find and compare flights from Peoria to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Sat 8/15

5:45 am-1:18 pm

1 stop6h 33m

Knoxville McGhee Tyson

Wed 8/19

7:00 am-10:06 am

1 stop4h 06m

$289

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Sat 8/15

10:41 am-4:58 pm

1 stop5h 17m

Knoxville McGhee Tyson

Sat 8/22

7:00 am-10:06 am

1 stop4h 06m

$289

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Sat 8/15

6:47 pm-11:53 pm

1 stop4h 06m

Knoxville McGhee Tyson

Sat 8/22

7:04 am-2:20 pm

2 stops8h 16m

$294

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Wed 8/5

1:13 pm-8:44 pm

1 stop6h 31m

Knoxville McGhee Tyson

Sun 8/9

6:00 am-10:09 am

1 stop5h 09m

$334

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Thu 8/27

10:41 am-4:58 pm

1 stop5h 17m

Knoxville McGhee Tyson

Sun 8/30

7:00 am-10:06 am

1 stop4h 06m

$369

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Tue 8/4

10:44 am-5:00 pm

1 stop5h 16m

Knoxville McGhee Tyson

Sat 8/8

6:00 am-10:09 am

1 stop5h 09m

$389

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Wed 8/19

3:35 pm-8:53 pm

1 stop4h 18m

Knoxville McGhee Tyson

Wed 8/26

6:02 pm-10:43 pm

1 stop5h 41m

$454
Quickest round-trip

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Sun 8/9

2:33 pm-8:44 pm

1 stop5h 11m

Knoxville McGhee Tyson

Thu 8/13

7:00 am-10:06 am

1 stop4h 06m

$587

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Thu 9/24

4:27 pm-10:50 pm

1 stop5h 23m

Knoxville McGhee Tyson

Mon 9/28

8:15 pm-12:08 am

1 stop4h 53m

$591

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Sorted by cheapest first

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Peoria, Illinois-Knoxville flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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 July 23, 2026.
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
7.1
Good
11,834 reviews

Comfort

7.2

Overall

7.1

Boarding

7.5

Crew

7.9

Food

6.4

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.
American Airlines
7.1
Good
11,834 reviews
American Airlines
7.1
Good
11,834 reviews

Comfort

7.2

Overall

7.1

Boarding

7.5

Crew

7.9

Food

6.4

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.

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 4h 06m. 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 $233 on this airline.

  • 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.

See more FAQs

Traveling to a place near Knoxville?

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

Browse thousands of different options on Cheapflights for your next trip

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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 July 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$233Average$485FlexibilityNo cancel feeOn-time71%

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