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$269+ 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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — TYS
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This United Airlines deal was found by Cheapflights users on 3/7. 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.
Sat 4/45:35 pm
PIA
-
TYS
1 stop3h 59m
United Airlines
Sat 4/117:00 am
TYS
-
PIA
1 stop4h 02m
United Airlines
Deal found 3/7$269
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/242:20 pm
PIA
-
TYS
1 stop5h 27m
United Airlines
Sat 3/287:00 am
TYS
-
PIA
1 stop6h 43m
United Airlines
Deal found 3/9$299
This American Airlines deal was found by Cheapflights users on 3/9. 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 3/241:17 pm
PIA
-
TYS
2 stops6h 47m
American Airlines
Sat 3/287:40 am
TYS
-
PIA
1 stop5h 38m
American Airlines
Deal found 3/9$304
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Wed 5/202:50 pm
PIA
-
TYS
1 stop4h 55m
United Airlines
Sat 5/238:20 am
TYS
-
PIA
1 stop5h 26m
United Airlines
Deal found 3/6$313
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/112:50 pm
PIA
-
TYS
1 stop6h 44m
United Airlines
Wed 4/157:00 am
TYS
-
PIA
1 stop4h 02m
United Airlines
Deal found 3/8$329
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Fri 6/57:44 pm
PIA
-
TYS
1 stop13h 13m
Allegiant Air
Mon 6/86:39 pm
TYS
-
PIA
1 stop20h 44m
Allegiant Air
Deal found 3/8$354
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:42 pm
PIA
-
TYS
1 stop13h 15m
Allegiant Air
Mon 7/67:04 pm
TYS
-
PIA
1 stop20h 15m
Allegiant Air
Deal found 3/6$361
This American Airlines deal was found by Cheapflights users on 3/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:59 am
PIA
-
TYS
1 stop3h 30m
American Airlines
Fri 9/253:05 pm
TYS
-
PIA
1 stop8h 58m
American Airlines
Deal found 3/7$377
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Mon 9/142:33 pm
PIA
-
TYS
1 stop5h 15m
United Airlines
Fri 9/258:30 am
TYS
-
PIA
1 stop5h 16m
United Airlines
Deal found 3/7$383

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(United Airlines)
Provider with most accurate pricing for Greater Peoria-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Greater Peoria-Knoxville McGhee Tyson flights.
Search Deals
From Greater Peoria to Knoxville McGhee Tyson
Search Deals

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 10, 2026.
Use the filters below to find and compare flights from Peoria to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Sat 4/4

5:35 pm-10:34 pm

1 stop3h 59m

Knoxville McGhee Tyson

Sat 4/11

7:00 am-10:02 am

1 stop4h 02m

$269

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Mon 7/6

2:39 pm-8:56 pm

1 stop5h 17m

Knoxville McGhee Tyson

Sat 7/11

8:20 am-1:57 pm

1 stop6h 37m

$269

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Tue 3/24

1:17 pm-9:04 pm

2 stops6h 47m

Knoxville McGhee Tyson

Sat 3/28

5:00 am-12:18 pm

2 stops8h 18m

$309

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Wed 5/20

2:50 pm-8:45 pm

1 stop4h 55m

Knoxville McGhee Tyson

Sat 5/23

8:20 am-12:46 pm

1 stop5h 26m

$313

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Sat 4/11

5:35 pm-10:34 pm

1 stop3h 59m

Knoxville McGhee Tyson

Wed 4/15

7:00 am-10:02 am

1 stop4h 02m

$329

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Fri 3/27

1:17 pm-9:24 pm

1 stop7h 07m

Knoxville McGhee Tyson

Mon 3/30

6:21 pm-10:58 pm

1 stop5h 37m

$451

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Sat 4/4

5:15 am-2:29 pm

2 stops8h 14m

Knoxville McGhee Tyson

Sat 4/11

11:40 am-6:24 pm

2 stops7h 44m

$477

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Sorted by cheapest first

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

*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, April is the cheapest month in which you can book a flight from Peoria, Illinois to Knoxville (average of $206). Flying from Peoria, Illinois to Knoxville in March is currently the most expensive (average of $353). 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 March 10, 2026.
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
7.1
Good
11,414 reviews

Crew

7.9

Overall

7.1

Food

6.4

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
American Airlines
7.1
Good
11,414 reviews
American Airlines
7.1
Good
11,414 reviews

Crew

7.9

Overall

7.1

Food

6.4

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes

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 3h 59m. Airlines will cover a distance of 456 mi. This flight may include one or multiple stops.

  • 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 $233 on this airline.

  • 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, April is the cheapest month in which you can book a flight from Peoria, Illinois to Knoxville (average of $206). Flying from Peoria, Illinois to Knoxville in March is currently the most expensive (average of $353). 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
Murphy
Oak Ridge

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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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$233Average$288FlexibilityNo cancel feeOn-time71%

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