$391+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — TYS
Nov 21 — Nov 281
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Peoria to Knoxville 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 Peoria to Knoxville
Cheapest
Best
Last-minute
Cheapest flights from Peoria to KnoxvilleExplore 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 October 22, 2026.
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 October 22, 2026.
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/233:41 pm -
1 stop4h 08m
Thu 11/126:45 am -
1 stop4h 23m
Deal found 10/19![United Airlines logo]()
$391
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 10/234:27 pm -
1 stop6h 28m
Fri 10/307:58 pm -
1 stop4h 58m
Deal found 10/21![American Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Wed 12/210:45 am -
1 stop5h 15m
Sat 12/56:00 am -
1 stop5h 10m
Deal found 10/21![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/233:41 pm -
1 stop4h 08m
Fri 10/305:40 pm -
1 stop6h 33m
Deal found 10/19![United Airlines logo]()
$426
This American Airlines deal was found by Cheapflights users on 10/19. 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 10/234:27 pm -
1 stop4h 22m
Thu 11/128:04 pm -
1 stop4h 52m
Deal found 10/19![American Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 10/18. 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.
Mon 11/211:28 am -
1 stop8h 42m
Fri 11/610:03 pm -
1 stop13h 03m
Deal found 10/18![Allegiant Air logo]()
$436
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/32:35 pm -
1 stop5h 19m
Sat 11/76:45 am -
1 stop4h 23m
Deal found 10/19![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 10/226:15 am -
1 stop5h 59m
Sun 10/256:45 am -
1 stop4h 23m
Deal found 10/21![United Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 10/19. 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 10/234:27 pm -
1 stop6h 28m
Wed 10/2812:53 pm -
1 stop4h 14m
Deal found 10/19![American Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 10/19. 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 10/234:27 pm -
1 stop6h 28m
Sat 10/247:58 pm -
1 stop4h 58m
Deal found 10/19![American Airlines logo]()
$474
Best flights from Peoria to KnoxvilleDiscover carefully curated flight deals from Peoria to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 22, 2026.
Discover carefully curated flight deals from Peoria to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 22, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Wed 12/210:45 am -
1 stop5h 15m
Sat 12/56:00 am -
1 stop5h 10m
Deal found 10/21![United Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 10/18. 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 1/215:42 am -
2 stops6h 59m
Mon 1/2512:30 pm -
2 stops6h 36m
Deal found 10/18![American Airlines logo]()
$550
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 12/172:35 pm -
1 stop5h 16m
Mon 12/2110:45 am -
1 stop7h 18m
Deal found 10/21![United Airlines logo]()
$544
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/32:35 pm -
1 stop5h 19m
Sat 11/79:45 am -
2 stops14h 28m
Deal found 10/19![United Airlines logo]()
$608
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/132:35 pm -
1 stop5h 19m
Mon 11/166:45 am -
1 stop4h 23m
Deal found 10/18![United Airlines logo]()
$618
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Mon 12/72:36 pm -
1 stop5h 11m
Thu 12/106:00 am -
1 stop5h 10m
Deal found 10/21![United Airlines logo]()
$637
Last-minute flights from Peoria to KnoxvilleDiscover last-minute flight deals from Peoria to Knoxville. Data last updated October 22, 2026 and is based on user searches.
Discover last-minute flight deals from Peoria to Knoxville. Data last updated October 22, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 10/226:15 am -
1 stop5h 59m
Sun 10/256:45 am -
1 stop4h 23m
Deal found 10/21![United Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/233:41 pm -
1 stop4h 08m
Thu 11/126:45 am -
1 stop4h 23m
Deal found 10/19![United Airlines logo]()
$391
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 10/234:27 pm -
1 stop6h 28m
Fri 10/307:58 pm -
1 stop4h 58m
Deal found 10/21![American Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/233:41 pm -
1 stop4h 08m
Fri 10/305:40 pm -
1 stop6h 33m
Deal found 10/19![United Airlines logo]()
$426
This American Airlines deal was found by Cheapflights users on 10/19. 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 10/234:27 pm -
1 stop4h 22m
Thu 11/128:04 pm -
1 stop4h 52m
Deal found 10/19![American Airlines logo]()
$429
This American Airlines deal was found by Cheapflights users on 10/19. 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 10/234:27 pm -
1 stop6h 28m
Wed 10/2812:53 pm -
1 stop4h 14m
Deal found 10/19![American Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 10/19. 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 10/234:27 pm -
1 stop6h 28m
Sat 10/247:58 pm -
1 stop4h 58m
Deal found 10/19![American Airlines logo]()
$474
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/233:41 pm -
1 stop4h 08m
Mon 11/25:40 pm -
1 stop6h 18m
Deal found 10/19![United Airlines logo]()
$504
This Kiwi.com deal was found by Cheapflights users on 10/18. 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.
Mon 11/211:28 am -
1 stop8h 42m
Fri 11/610:03 pm -
1 stop13h 03m
Deal found 10/18![Allegiant Air logo]()
$436
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/32:35 pm -
1 stop5h 19m
Sat 11/76:45 am -
1 stop4h 23m
Deal found 10/19![United Airlines logo]()
$439
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 October 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $286 (Kiwi.com) |
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 7,457,451 searches. Data last updated October 22, 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
Cheapest round-trip
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Wed 12/2
10:45 am-5:00 pm
1 stop5h 15m
Knoxville McGhee Tyson
Sat 12/5
6:00 am-10:10 am
1 stop5h 10m
$409
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Thu 12/17
2:35 pm-8:51 pm
1 stop5h 16m
Knoxville McGhee Tyson
Mon 12/21
10:45 am-5:03 pm
1 stop7h 18m
$544
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Thu 1/21
5:42 am-1:41 pm
2 stops6h 59m
Knoxville McGhee Tyson
Mon 1/25
12:30 pm-6:06 pm
2 stops6h 36m
$550
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Tue 11/3
2:35 pm-8:54 pm
1 stop5h 19m
Knoxville McGhee Tyson
Sat 11/7
9:45 am-11:13 pm
2 stops14h 28m
$608
Quickest round-trip
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Fri 11/13
2:35 pm-8:54 pm
1 stop5h 19m
Knoxville McGhee Tyson
Mon 11/16
6:45 am-10:08 am
1 stop4h 23m
$618
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Mon 12/7
2:36 pm-8:47 pm
1 stop5h 11m
Knoxville McGhee Tyson
Thu 12/10
6:00 am-10:10 am
1 stop5h 10m
$637
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 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 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.
PIA-TYS
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 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 October 22, 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.
Crew
7.9
Overall
7.0
Comfort
7.1
Entertainment
6.8
Food
6.4
Boarding
7.4
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
Crew
7.9
Overall
7.0
Comfort
7.1
Entertainment
6.8
Food
6.4
Boarding
7.4
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
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.
Traveling to a place near Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Crossville
Morristown
Newport
Bryson City
Murphy
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Knoxville flight routes
Other flight options
Other flights from Peoria
Popular flights
Alternative routes for Peoria to Knoxville
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Knoxville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Peoria to Knoxville by cabin class
Find flights from Peoria to Knoxville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Knoxville
Explore flights to Knoxville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 22, 2026.
Peoria and Knoxville flights
Browse other Peoria and Knoxville flight options. Last updated on October 22, 2026.
Other flights from Peoria
Browse through other flights departing from Peoria. Flights are based on user searches made on Cheapflights and were last updated on October 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated October 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$308 | Average$513 | FlexibilityNo cancel fee | On-time71% |