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$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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — TYS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This American Airlines deal was found by Cheapflights users on 12/10. 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 12/266:00 amPIA - TYS
1 stop3h 50mAmerican Airlines
Tue 12/302:58 pmTYS - PIA
1 stop5h 31mAmerican Airlines
Deal found 12/10$538
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/265:19 pmPIA - TYS
2 stops29h 40mUnited Airlines
Tue 12/3011:00 amTYS - PIA
1 stop6h 43mUnited Airlines
Deal found 12/10$559

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$289
(United Airlines)

Popular in

August

Cheapest in

July

Average price

$329
Provider with most accurate pricing for Greater Peoria-Knoxville McGhee Tyson flight deals.
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Provider most trusted by Cheapflights users for Greater Peoria-Knoxville McGhee Tyson flights.
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From Greater Peoria to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 12, 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

Wed 5/6

2:50 pm-8:45 pm

1 stop4h 55m

Knoxville McGhee Tyson

Sat 5/9

7:00 am-12:36 pm

1 stop6h 36m

$289

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Sat 1/24

1:24 pm-8:52 pm

1 stop6h 28m

Knoxville McGhee Tyson

Wed 1/28

11:10 am-2:23 pm

1 stop4h 13m

$289

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Mon 3/23

2:50 pm-8:47 pm

1 stop4h 57m

Knoxville McGhee Tyson

Fri 3/27

7:00 am-10:03 am

1 stop4h 03m

$475

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Fri 12/26

6:00 am-10:50 am

1 stop3h 50m

Knoxville McGhee Tyson

Tue 12/30

2:58 pm-7:29 pm

1 stop5h 31m

$538

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Thu 3/19

5:25 pm-8:47 pm

1 stop26h 22m

Knoxville McGhee Tyson

Sun 3/22

7:00 am-10:03 am

1 stop4h 03m

$551

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Fri 12/26

5:19 pm-11:59 pm

2 stops29h 40m

Knoxville McGhee Tyson

Tue 12/30

5:45 am-9:39 pm

2 stops16h 54m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

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 December.
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, May is the cheapest month in which you can book a flight from Peoria, Illinois to Knoxville (average of $124). Flying from Peoria, Illinois to Knoxville in November is currently the most expensive (average of $260). 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 December 12, 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
11,050 reviews

Comfort

7.2

Boarding

7.5

Food

6.5

Crew

8.0

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,050 reviews
American Airlines
7.2
Good
11,050 reviews

Comfort

7.2

Boarding

7.5

Food

6.5

Crew

8.0

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

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 55m. Airlines will cover a distance of 456 mi.

  • 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 32% 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, May is the cheapest month in which you can book a flight from Peoria, Illinois to Knoxville (average of $124). Flying from Peoria, Illinois to Knoxville in November is currently the most expensive (average of $260). 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
Cherokee
Crossville
Corbin
Morristown
Bryson City
Alcoa
Oak Ridge
Murphy

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$288FlexibilityNo cancel feeOn-time71%

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