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Peoria

$239+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PIA
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find 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 October 29, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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 11/116:45 amTYS - PIA
1 stop4h 31mUnited Airlines
Sat 11/153:30 pmPIA - TYS
1 stop6h 25mUnited Airlines
Deal found 10/27$239
This American Airlines deal was found by Cheapflights users on 10/27. 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 11/115:10 amTYS - PIA
1 stop6h 03mAmerican Airlines
Sat 11/1510:25 amPIA - TYS
2 stops8h 08mAmerican Airlines
Deal found 10/27$244
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 11/1310:50 amTYS - PIA
1 stop4h 43mUnited Airlines
Mon 11/176:45 amPIA - TYS
1 stop5h 32mUnited Airlines
Deal found 10/28$259
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:08 pmTYS - PIA
1 stop17h 22mAmerican Airlines
Sat 1/310:00 amPIA - TYS
1 stop10h 21mAmerican Airlines
Deal found 10/28$357
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:27 pmTYS - PIA
1 stop7h 17mAmerican Airlines
Mon 11/176:00 amPIA - TYS
2 stops6h 52mAmerican Airlines
Deal found 10/28$444
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Thu 11/276:45 amTYS - PIA
1 stop4h 31mUnited Airlines
Sat 11/2910:51 amPIA - TYS
1 stop11h 04mUnited Airlines
Deal found 10/27$480
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Thu 11/278:59 amTYS - PIA
2 stops8h 15mAmerican Airlines
Sat 11/296:00 amPIA - TYS
2 stops7h 19mAmerican Airlines
Deal found 10/27$820

Cheap 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$239
(United Airlines)

Popular in

March

Cheapest in

January

Average price

$434
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
Highest demand for flights based on searches. 25% potential increase in price ($138 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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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 October 29, 2025.
Use the filters below to find and compare flights from Knoxville to Peoria that are best for you.

Fly from

Knoxville

Fly to

Peoria

Route

Depart

Return

Price

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Tue 11/11

6:45 am-10:16 am

1 stop4h 31m

Greater Peoria

Sat 11/15

3:30 pm-10:55 pm

1 stop6h 25m

$239

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Tue 11/11

5:10 am-10:13 am

1 stop6h 03m

Greater Peoria

Sat 11/15

10:25 am-7:33 pm

2 stops8h 08m

$244

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Thu 11/13

10:50 am-2:33 pm

1 stop4h 43m

Greater Peoria

Mon 11/17

6:45 am-1:17 pm

1 stop5h 32m

$259

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Fri 12/26

5:08 pm-11:31 pm

1 stop7h 23m

Greater Peoria

Sat 1/3

10:00 am-9:21 pm

1 stop10h 21m

$357

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Thu 11/13

4:27 pm-10:44 pm

1 stop7h 17m

Greater Peoria

Mon 11/17

6:00 am-1:52 pm

2 stops6h 52m

$444

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Thu 11/27

6:45 am-10:16 am

1 stop4h 31m

Greater Peoria

Sat 11/29

10:51 am-10:55 pm

1 stop11h 04m

$480

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Mon 12/1

5:52 pm-4:40 pm

1 stop23h 48m

$477

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Sun 11/30

9:10 am-12:39 pm

2 stops28h 29m

$794

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
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 Knoxville-Peoria, Illinois flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Knoxville-Peoria, Illinois flight deals on Cheapflights vs. eDreams >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 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 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.

Cheapflights Insights

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

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

Currently, January is the cheapest month in which you can book a flight from Knoxville to Peoria, Illinois (average of $227). Flying from Knoxville to Peoria, Illinois in April is currently the most expensive (average of $394). 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 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 October 29, 2025.
Read through reviews of airlines operating flights from Knoxville to Peoria, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,999 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
8,999 reviews
United Airlines
7.4
Good
8,999 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
American Airlines
7.2
Good
11,032 reviews
United Airlines
7.4
Good
8,999 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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 $239, United Airlines can have you in Peoria, Illinois from Knoxville in 4h 31m. 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 are the cheapest airlines flying from Knoxville to Peoria, Illinois round-trip?

    Cheapflights users have booked flights from Knoxville to Peoria, Illinois round-trip from $228. Another airline that can offer you cheap pricing is United Airlines. American Airlines is 43% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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.

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

    Currently, January is the cheapest month in which you can book a flight from Knoxville to Peoria, Illinois (average of $227). Flying from Knoxville to Peoria, Illinois in April is currently the most expensive (average of $394). 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

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Top 2 airlines flying from Knoxville to Peoria

Discover the top 2 airlines 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$228Average$359FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$288FlexibilityNo cancel feeOn-time71%

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