$272+ 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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PIA
Nov 10 — Nov 171
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Peoria with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Knoxville to Peoria
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Best
Last-minute
One-way
Cheapest flights from Knoxville to PeoriaExplore 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 11, 2026.
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 11, 2026.
This American Airlines deal was found by Cheapflights users on 10/10. 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.
Thu 11/511:33 am -
1 stop6h 35m
Sun 11/85:37 pm -
1 stop5h 10m
Deal found 10/10![American Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:55 pm -
1 stop6h 15m
Tue 10/275:29 pm -
1 stop5h 30m
Deal found 10/8![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 10/11. 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 10/156:06 pm -
1 stop6h 50m
Sun 10/186:14 am -
1 stop3h 51m
Deal found 10/11![American Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:50 pm -
1 stop27h 56m
Sun 11/89:41 am -
1 stop10h 02m
Deal found 10/10![Allegiant Air logo]()
$400
Best flights from Knoxville to PeoriaDiscover carefully curated flight deals from Knoxville to Peoria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 11, 2026.
Discover carefully curated flight deals from Knoxville to Peoria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 11, 2026.
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:05 pm -
2 stops7h 05m
Tue 10/276:14 am -
2 stops8h 07m
Deal found 10/8![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 10/10. 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.
Thu 1/71:55 pm -
1 stop6h 02m
Mon 1/115:00 am -
1 stop4h 10m
Deal found 10/10![United Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:45 am -
2 stops27h 05m
Sun 11/89:41 am -
1 stop10h 02m
Deal found 10/10![Allegiant Air logo]()
$516
This American Airlines deal was found by Cheapflights users on 10/10. 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.
Thu 11/58:52 pm -
1 stop4h 11m
Sun 11/86:02 am -
2 stops8h 16m
Deal found 10/10![American Airlines logo]()
$435
Last-minute flights from Knoxville to PeoriaDiscover last-minute flight deals from Knoxville to Peoria. Data last updated October 11, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Peoria. Data last updated October 11, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/11. 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 10/156:06 pm -
1 stop6h 50m
Sun 10/186:14 am -
1 stop3h 51m
Deal found 10/11![American Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:55 pm -
1 stop6h 15m
Tue 10/275:29 pm -
1 stop5h 30m
Deal found 10/8![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 10/10. 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.
Thu 11/511:33 am -
1 stop6h 35m
Sun 11/85:37 pm -
1 stop5h 10m
Deal found 10/10![American Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:50 pm -
1 stop27h 56m
Sun 11/89:41 am -
1 stop10h 02m
Deal found 10/10![Allegiant Air logo]()
$400
One-way flights from Knoxville to PeoriaSearch for one-way flight options from Knoxville to Peoria. Find affordable one-way fares based on user searches. Data last updated October 11, 2026.
Search for one-way flight options from Knoxville to Peoria. Find affordable one-way fares based on user searches. Data last updated October 11, 2026.
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Mon 10/265:40 pm -
1 stop6h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![United Airlines logo]()
$272
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Fri 12/2510:45 am -
1 stop4h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![United Airlines logo]()
$310
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Sun 11/156:45 am -
1 stop4h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![United Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:58 pm -
1 stop4h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![American Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Sun 10/255:45 am -
2 stops9h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$597
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Wed 10/211:35 pm -
2 stops10h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![United Airlines logo]()
$677
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 October 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $319 (American Airlines) |
One-way from | $272 (United Airlines) |
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 7,457,451 searches. Data last updated October 11, 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
Cheapest round-trip
KnoxvillePeoria
TYS Knoxville McGhee Tyson - PIA Greater Peoria
TYSPIA
Knoxville McGhee Tyson
Mon 10/26
5:40 pm-10:58 pm
1 stop6h 18m
Greater Peoria
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$272
Quickest round-trip
KnoxvillePeoria
TYS Knoxville McGhee Tyson - PIA Greater Peoria
TYSPIA
Knoxville McGhee Tyson
Fri 12/25
10:45 am-1:58 pm
1 stop4h 13m
Greater Peoria
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$310
KnoxvillePeoria
TYS Knoxville McGhee Tyson - PIA Greater Peoria
TYSPIA
Knoxville McGhee Tyson
Sun 11/15
6:45 am-10:08 am
1 stop4h 23m
Greater Peoria
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$334
KnoxvillePeoria
TYS Knoxville McGhee Tyson - PIA Greater Peoria
TYSPIA
Knoxville McGhee Tyson
Fri 10/23
6:05 pm-12:10 am
2 stops7h 05m
Greater Peoria
Tue 10/27
6:14 am-3:21 pm
2 stops8h 07m
$359
KnoxvillePeoria
TYS Knoxville McGhee Tyson - PIA Greater Peoria
TYSPIA
Knoxville McGhee Tyson
Sun 10/25
7:58 pm-11:56 pm
1 stop4h 58m
Greater Peoria
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$384
KnoxvillePeoria
TYS Knoxville McGhee Tyson - PIA Greater Peoria
TYSPIA
Knoxville McGhee Tyson
Thu 1/7
1:55 pm-6:57 pm
1 stop6h 02m
Greater Peoria
Mon 1/11
5:00 am-10:10 am
1 stop4h 10m
$409
KnoxvillePeoria
TYS Knoxville McGhee Tyson - PIA Greater Peoria
TYSPIA
Knoxville McGhee Tyson
Thu 11/5
8:52 pm-12:03 am
1 stop4h 11m
Greater Peoria
Sun 11/8
6:02 am-3:18 pm
2 stops8h 16m
$435
KnoxvillePeoria
TYS Knoxville McGhee Tyson - PIA Greater Peoria
TYSPIA
Knoxville McGhee Tyson
Thu 11/5
7:45 am-9:50 am
2 stops27h 05m
Greater Peoria
Sun 11/8
9:41 am-8:43 pm
1 stop10h 02m
$516
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
TYS-PIA
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 October 11, 2026.
Read through reviews of airlines operating flights from Knoxville to Peoria, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.4
Overall
7.0
Food
6.4
Comfort
7.2
Entertainment
6.8
Crew
7.9
Reviews
1 / 20
2.0
MediocreAnonymous,Aug 2025
BNA - ORD
Boarding
7.4
Overall
7.0
Food
6.4
Comfort
7.2
Entertainment
6.8
Crew
7.9
Reviews
1 / 20
2.0
MediocreAnonymous,Aug 2025
BNA - ORD
Related info for your journey
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Knoxville and Peoria flights
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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 7,457,451 searches. Data last updated October 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$318 | Average$408 | FlexibilityNo cancel fee | On-time71% |