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Peoria

$280+ Cheap flights from Knoxville to Peoria, IL (TYS - PIA)

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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PIA
May 28 — Jun 41
Thu 5/28
Thu 6/4
1 adult, Economy
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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 April 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:45 pm
TYS
-
PIA
1 stop27h 38m
Allegiant Air
Mon 5/258:09 pm
PIA
-
TYS
1 stop16h 23m
Allegiant Air
Deal found 4/27$280
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Fri 5/296:20 pm
TYS
-
PIA
1 stop15h 35m
Allegiant Air
Mon 6/87:44 pm
PIA
-
TYS
1 stop19h 11m
Allegiant Air
Deal found 4/26$294
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:33 pm
TYS
-
PIA
1 stop7h 05m
American Airlines
Sun 5/246:00 am
PIA
-
TYS
1 stop3h 59m
American Airlines
Deal found 4/27$309
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/137:00 am
TYS
-
PIA
1 stop4h 04m
United Airlines
Sun 5/172:50 pm
PIA
-
TYS
1 stop4h 55m
United Airlines
Deal found 4/28$319
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:48 pm
TYS
-
PIA
1 stop3h 49m
American Airlines
Sat 5/166:00 am
PIA
-
TYS
2 stops7h 24m
American Airlines
Deal found 4/27$324
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/11:15 pm
TYS
-
PIA
1 stop21h 53m
Allegiant Air
Sun 5/106:19 pm
PIA
-
TYS
1 stop17h 34m
Allegiant Air
Deal found 4/27$328
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 9/246:08 pm
TYS
-
PIA
1 stop16h 08m
Allegiant Air
Sun 9/275:20 pm
PIA
-
TYS
1 stop16h 54m
Allegiant Air
Deal found 4/26$358
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:30 am
TYS
-
PIA
1 stop4h 22m
United Airlines
Sat 8/221:21 pm
PIA
-
TYS
1 stop6h 27m
United Airlines
Deal found 4/27$359
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:00 am
TYS
-
PIA
2 stops27h 08m
Multiple Airlines
Sun 5/106:19 pm
PIA
-
TYS
1 stop17h 34m
Multiple Airlines
Deal found 4/27$388
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:55 pm
TYS
-
PIA
1 stop5h 54m
United Airlines
Sat 5/161:35 pm
PIA
-
TYS
1 stop6h 12m
United Airlines
Deal found 4/27$389

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 April 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$280
(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.
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From Knoxville McGhee Tyson to Greater Peoria
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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 April 28, 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

Fri 5/29

6:20 pm-8:55 am

1 stop15h 35m

Greater Peoria

Mon 6/8

7:44 pm-3:55 pm

1 stop19h 11m

$294
Quickest round-trip

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Sat 5/16

8:48 pm-11:37 pm

1 stop3h 49m

Greater Peoria

Sun 5/17

6:00 am-10:57 am

1 stop3h 57m

$319

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Wed 5/13

7:00 am-10:04 am

1 stop4h 04m

Greater Peoria

Sun 5/17

2:50 pm-8:45 pm

1 stop4h 55m

$319

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Tue 5/12

8:48 pm-11:37 pm

1 stop3h 49m

Greater Peoria

Sat 5/16

6:00 am-2:24 pm

2 stops7h 24m

$324

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Wed 5/13

11:40 am-6:24 pm

2 stops7h 44m

Greater Peoria

Sun 5/17

6:00 am-10:57 am

1 stop3h 57m

$324

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Tue 8/18

6:30 am-9:52 am

1 stop4h 22m

Greater Peoria

Sat 8/22

1:21 pm-8:48 pm

1 stop6h 27m

$359

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Tue 5/12

5:55 pm-10:49 pm

1 stop5h 54m

Greater Peoria

Sat 5/16

1:35 pm-8:47 pm

1 stop6h 12m

$389

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Fri 5/29

6:07 pm-11:59 pm

2 stops6h 52m

Greater Peoria

Mon 6/8

4:20 pm-11:47 pm

1 stop6h 27m

$396

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Wed 9/2

6:30 am-9:52 am

1 stop4h 22m

Greater Peoria

Sat 9/5

5:31 pm-12:25 am

1 stop5h 54m

$419

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Sat 5/9

7:00 am-12:57 pm

1 stop6h 57m

Greater Peoria

Wed 5/13

2:50 pm-8:45 pm

1 stop4h 55m

$439

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

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 April.
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 April 28, 2026.
Read through reviews of airlines operating flights from Knoxville to Peoria, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,672 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,672 reviews
United Airlines
7.4
Good
9,672 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 $319, Allegiant Air can have you in Peoria, Illinois from Knoxville in 3h 49m. 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

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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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$228Average$373FlexibilityNo cancel feeOn-time69%

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