HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Peoria

$212+ Cheap flights from Knoxville to Peoria, IL (TYS - PIA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/19. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PIA
Jul 11 — Jul 181
Sat 7/11
Sat 7/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Peoria 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 Knoxville to Peoria

Cheapest flights from Knoxville to Peoria
Explore the most affordable flight options available from Knoxville to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.

This American Airlines deal was found by Cheapflights users on 6/8. 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 7/168:05 pm
TYS
-
PIA
1 stop4h 53m
American Airlines
Mon 7/204:22 pm
PIA
-
TYS
1 stop6h 29m
American Airlines
Deal found 6/8$299
This American Airlines deal was found by Cheapflights users on 6/8. 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.
Wed 7/810:00 am
TYS
-
PIA
1 stop7h 13m
American Airlines
Wed 7/156:00 am
PIA
-
TYS
1 stop4h 05m
American Airlines
Deal found 6/8$346
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Tue 7/214:20 pm
TYS
-
PIA
1 stop18h 39m
Allegiant Air
Mon 7/279:38 am
PIA
-
TYS
1 stop7h 36m
Allegiant Air
Deal found 6/9$358
This American Airlines deal was found by Cheapflights users on 6/10. 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 6/196:43 pm
TYS
-
PIA
1 stop6h 55m
American Airlines
Sun 6/215:06 am
PIA
-
TYS
1 stop4h 30m
American Airlines
Deal found 6/10$369
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 8/93:56 pm
TYS
-
PIA
1 stop17h 18m
Allegiant Air
Sat 8/1510:45 am
PIA
-
TYS
2 stops29h 34m
Allegiant Air
Deal found 6/8$383
This United Airlines deal was found by Cheapflights users on 6/7. 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 7/56:00 am
TYS
-
PIA
1 stop5h 09m
United Airlines
Sat 7/111:13 pm
PIA
-
TYS
1 stop6h 31m
United Airlines
Deal found 6/7$404
This United Airlines deal was found by Cheapflights users on 6/6. 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 6/75:41 pm
TYS
-
PIA
1 stop6h 39m
United Airlines
Sat 6/131:13 pm
PIA
-
TYS
1 stop6h 43m
United Airlines
Deal found 6/6$420
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 7/310:18 am
TYS
-
PIA
1 stop4h 39m
United Airlines
Sun 7/51:13 pm
PIA
-
TYS
1 stop6h 35m
United Airlines
Deal found 6/10$423
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Sat 6/131:06 pm
TYS
-
PIA
1 stop22h 11m
Allegiant Air
Mon 6/157:44 pm
PIA
-
TYS
1 stop19h 11m
Allegiant Air
Deal found 6/9$424
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 7/2110:00 am
TYS
-
PIA
2 stops9h 28m
American Airlines
Mon 7/274:22 pm
PIA
-
TYS
1 stop5h 01m
American Airlines
Deal found 6/9$448
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/36:07 pm
TYS
-
PIA
2 stops7h 15m
American Airlines
Sun 7/56:00 am
PIA
-
TYS
1 stop4h 05m
American Airlines
Deal found 6/10$449

Find flight deals from Knoxville to Peoria

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Peoria (PIA). 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 June 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$299
(American Airlines)

One-way from

$212
(Kiwi.com)
Provider with most accurate pricing for Knoxville McGhee Tyson-Greater Peoria flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Greater Peoria flights.
Search Deals
From Knoxville McGhee Tyson to Greater Peoria
Search Deals
One-way flight from Knoxville McGhee Tyson to Greater Peoria
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Peoria 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 June 11, 2026.
Use the filters below to find and compare flights from Knoxville to Peoria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Thu 7/16

8:05 pm-11:58 pm

1 stop4h 53m

Greater Peoria

Mon 7/20

4:22 pm-11:51 pm

1 stop6h 29m

$299
Quickest round-trip

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Sun 8/9

6:00 am-10:09 am

1 stop5h 09m

Greater Peoria

Sat 8/15

3:35 pm-8:53 pm

1 stop4h 18m

$299

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Tue 7/7

6:00 am-10:09 am

1 stop5h 09m

Greater Peoria

Mon 7/13

1:13 pm-8:44 pm

1 stop6h 31m

$369

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Sun 7/5

6:00 am-10:09 am

1 stop5h 09m

Greater Peoria

Sat 7/11

1:13 pm-8:44 pm

1 stop6h 31m

$404

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Fri 7/3

10:18 am-1:57 pm

1 stop4h 39m

Greater Peoria

Sun 7/5

1:13 pm-8:48 pm

1 stop6h 35m

$423

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Fri 7/3

6:07 pm-12:22 am

2 stops7h 15m

Greater Peoria

Sun 7/5

6:00 am-11:05 am

1 stop4h 05m

$449

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Fri 8/14

6:02 pm-8:59 pm

1 stop3h 57m

Greater Peoria

Mon 8/17

6:39 pm-8:24 pm

2 stops24h 45m

$504
Cheapest one-way

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Fri 6/19

6:34 pm-8:51 am

1 stop15h 17m

$212

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Fri 6/19

1:02 pm-8:41 am

3 stops44h 39m

$345
Quickest one-way

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Fri 6/19

6:00 am-8:58 am

1 stop3h 58m

$384

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/8

Sorted by cheapest first

Compare providers for flights from Knoxville to Peoria

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 Knoxville to Peoria in June.
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 Knoxville-Peoria, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Peoria, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Peoria, Illinois flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Peoria, Illinois 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 Knoxville-Peoria, Illinois 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 Knoxville to Peoria

Have a flexible travel schedule? Discover the best time to fly to Peoria from Knoxville 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 Peoria

Get insights into the airlines that provide service to Peoria. 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 Peoria. Reviews last updated June 11, 2026.
Read through reviews of airlines operating flights from Knoxville to Peoria, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,640 reviews

Crew

7.9

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Overall

7.1

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

BNA - ORD

My flight was 8 hours delayed, so I missed my connecting flight to Dublin. I understand it’s not the staff’s fault but the lack of sympathy and apology was appalling. I had been sat in the airport since 4am until 3pm and they did not seem understanding. Not good. Need better customer service.
American Airlines
7.1
Good
11,640 reviews
American Airlines
7.1
Good
11,640 reviews

Crew

7.9

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Overall

7.1

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

BNA - ORD

My flight was 8 hours delayed, so I missed my connecting flight to Dublin. I understand it’s not the staff’s fault but the lack of sympathy and apology was appalling. I had been sat in the airport since 4am until 3pm and they did not seem understanding. Not good. Need better customer service.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Peoria. 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 Knoxville to Peoria, Illinois?

    For as low as $299, American Airlines can have you in Peoria, Illinois from Knoxville in 4h 53m. Airlines will cover a distance of 456 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Cheapflights users have booked flights from Knoxville to Peoria, Illinois round-trip from $228.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Knoxville to Peoria 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

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.

Top airline flying from Knoxville to Peoria

Discover the top airline that operate flights from Knoxville to Peoria. 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 June 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$408FlexibilityNo 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.
Site
©2026 Cheapflights