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$234+ 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — TYS
Mar 26 — Apr 21
Wed 3/26
Wed 4/2
1 adult, Economy
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Cheap 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 March 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$234
(American Airlines)

Popular in

March

Cheapest in

September

Average price

$418
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
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Highest demand for flights based on searches. 11% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find 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 March 21, 2025.

This American Airlines deal was found by Cheapflights users on 3/21. 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.
Sat 7/266:26 pmPIA - TYS
1 stop4h 15mAmerican Airlines
Sat 8/28:31 pmTYS - PIA
1 stop4h 28mAmerican Airlines
Deal found 3/21$234
This United Airlines deal was found by Cheapflights users on 3/21. 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.
Tue 4/155:21 pmPIA - TYS
1 stop4h 01mUnited Airlines
Wed 4/167:00 amTYS - PIA
1 stop4h 12mUnited Airlines
Deal found 3/21$259
This Mytrip deal was found by Cheapflights users on 3/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/176:07 pmPIA - TYS
1 stop26h 08mAllegiant Air
Thu 4/246:00 amTYS - PIA
1 stop14h 32mAllegiant Air
Deal found 3/20$277
This Mytrip deal was found by Cheapflights users on 3/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/259:07 pmPIA - TYS
2 stops22h 15mMultiple Airlines
Sun 4/273:52 pmTYS - PIA
2 stops23h 26mMultiple Airlines
Deal found 3/20$327

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 March 21, 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

Sat 7/26

6:26 pm-11:41 pm

1 stop4h 15m

Knoxville McGhee Tyson

Sat 8/2

5:30 am-9:44 am

1 stop5h 14m

$234

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Thu 4/17

6:07 pm-9:15 pm

1 stop26h 08m

Knoxville McGhee Tyson

Thu 4/24

6:00 am-7:32 pm

1 stop14h 32m

$277

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Fri 4/4

5:21 pm-10:22 pm

1 stop4h 01m

Knoxville McGhee Tyson

Tue 4/8

1:57 pm-4:46 pm

1 stop3h 49m

$299

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Thu 4/17

6:07 pm-5:59 pm

2 stops22h 52m

Knoxville McGhee Tyson

Thu 4/24

1:43 pm-2:18 pm

2 stops25h 35m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 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 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.

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, January is the cheapest month in which you can book a flight from Peoria, Illinois to Knoxville (average of $295). Flying from Peoria, Illinois to Knoxville in March is currently the most expensive (average of $376). 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.

Rainfall in Knoxville by month

Plan your trip to Knoxville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Knoxville ranges from 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

Temperature in Knoxville by month

Plan your trip to Knoxville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Knoxville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 March 21, 2025.
United Airlines
7.4
Good
8,605 reviews

Crew

8.1

Entertainment

7.0

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,605 reviews
United Airlines
7.4
Good
8,605 reviews

Crew

8.1

Entertainment

7.0

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Allegiant Air
7.3
Good
732 reviews
United Airlines
7.4
Good
8,605 reviews

Crew

8.1

Entertainment

7.0

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,605 reviews

Crew

8.1

Entertainment

7.0

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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.

  • What are the cheapest airlines flying 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 $234 on this airline. Additional options worth looking into are Allegiant Air and United Airlines, starting at $277 and $299 round-trip. American Airlines is priced at 29% 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, January is the cheapest month in which you can book a flight from Peoria, Illinois to Knoxville (average of $295). Flying from Peoria, Illinois to Knoxville in March is currently the most expensive (average of $376). 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 Peoria?

Book flights to Peoria if you plan to visit one of these locations
Morristown
Cherokee
Corbin
Maryville
Oak Ridge
Alcoa
Murphy

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Top 2 airlines flying from Peoria to Knoxville

Discover the top 2 airlines 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 March 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$198Average$323FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$228Average$333FlexibilityNo cancel feeOn-time69%
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