$264+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — TYS
Oct 7 — Oct 141
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
One-way
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 September 7, 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 September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Sat 10/176:04 pm -
1 stop27h 19m
Thu 10/2212:19 pm -
1 stop28h 22m
Deal found 9/3![Allegiant Air logo]()
$281
This American Airlines deal was found by Cheapflights users on 9/2. 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 10/134:28 pm -
1 stop5h 26m
Tue 10/206:55 pm -
1 stop6h 15m
Deal found 9/2![American Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Sun 10/188:07 pm -
2 stops24h 14m
Wed 10/214:29 pm -
1 stop16h 40m
Deal found 9/3![Allegiant Air logo]()
$333
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/125:28 pm -
1 stop4h 14m
Sat 9/196:06 pm -
1 stop5h 51m
Deal found 9/3![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 10/75:30 pm -
1 stop5h 29m
Wed 10/147:58 pm -
1 stop4h 58m
Deal found 9/2![American Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/173:41 pm -
1 stop4h 08m
Tue 10/206:00 am -
1 stop5h 06m
Deal found 9/3![United Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Sun 10/188:07 pm -
1 stop11h 31m
Tue 10/202:52 pm -
1 stop19h 09m
Deal found 9/3![Allegiant Air logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Sat 10/176:04 pm -
1 stop27h 19m
Fri 10/238:40 pm -
1 stop21h 33m
Deal found 9/3![Allegiant Air logo]()
$375
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/26:48 pm -
1 stop3h 58m
Wed 9/912:09 pm -
1 stop5h 02m
Deal found 9/2![American Airlines logo]()
$379
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 September 7, 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 September 7, 2026.
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/173:41 pm -
1 stop4h 08m
Wed 10/216:00 am -
1 stop5h 06m
Deal found 9/3![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 10/76:14 am -
2 stops7h 58m
Wed 10/146:05 pm -
2 stops7h 05m
Deal found 9/2![American Airlines logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Sun 9/209:53 pm -
1 stop16h 35m
Thu 9/2411:34 am -
1 stop6h 26m
Deal found 9/5![Allegiant Air logo]()
$551
This United Airlines deal was found by Cheapflights users on 9/3. 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 1/165:41 pm -
1 stop15h 09m
Wed 1/2010:45 am -
1 stop4h 15m
Deal found 9/3![United Airlines logo]()
$523
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/203:41 pm -
1 stop4h 08m
Fri 10/2310:42 am -
1 stop24h 24m
Deal found 9/3![United Airlines logo]()
$523
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/186:39 pm -
1 stop21h 19m
Tue 9/226:00 am -
1 stop4h 57m
Deal found 9/2![United Airlines logo]()
$568
Last-minute flights from Peoria to KnoxvilleDiscover last-minute flight deals from Peoria to Knoxville. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Peoria to Knoxville. Data last updated September 7, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/125:28 pm -
1 stop4h 14m
Sat 9/196:06 pm -
1 stop5h 51m
Deal found 9/3![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 10/75:30 pm -
1 stop5h 29m
Wed 10/147:58 pm -
1 stop4h 58m
Deal found 9/2![American Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 9/2. 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 10/134:28 pm -
1 stop5h 26m
Tue 10/206:55 pm -
1 stop6h 15m
Deal found 9/2![American Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Sat 10/176:04 pm -
1 stop27h 19m
Thu 10/2212:19 pm -
1 stop28h 22m
Deal found 9/3![Allegiant Air logo]()
$281
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/173:41 pm -
1 stop4h 08m
Tue 10/206:00 am -
1 stop5h 06m
Deal found 9/3![United Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Sat 10/176:04 pm -
1 stop27h 19m
Fri 10/238:40 pm -
1 stop21h 33m
Deal found 9/3![Allegiant Air logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Sun 10/188:07 pm -
2 stops24h 14m
Wed 10/214:29 pm -
1 stop16h 40m
Deal found 9/3![Allegiant Air logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Sun 10/188:07 pm -
1 stop11h 31m
Tue 10/202:52 pm -
1 stop19h 09m
Deal found 9/3![Allegiant Air logo]()
$374
One-way flights from Peoria to KnoxvilleSearch for one-way flight options from Peoria to Knoxville. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Peoria to Knoxville. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Mon 10/194:27 pm -
1 stop6h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$264
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/206:14 am -
2 stops8h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![American Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/203:41 pm -
1 stop4h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 9/2. 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 10/225:05 am -
1 stop6h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 9/2. 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 10/2312:31 pm -
2 stops10h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/216:15 am -
3 stops14h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$589
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/198:45 am -
3 stops11h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$957
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $281 (Kiwi.com) |
One-way from | $264 (American Airlines) |
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 September 7, 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
Mon 10/19
4:27 pm-11:55 pm
1 stop6h 28m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$264
Quickest round-trip
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Tue 10/20
6:14 am-11:05 am
1 stop3h 51m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$264
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Mon 10/19
3:41 pm-8:49 pm
1 stop4h 08m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$299
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Sat 10/17
3:41 pm-8:49 pm
1 stop4h 08m
Knoxville McGhee Tyson
Wed 10/21
6:00 am-10:06 am
1 stop5h 06m
$369
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Thu 10/22
6:14 am-5:33 pm
2 stops10h 19m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$379
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Fri 10/23
12:31 pm-11:55 pm
2 stops10h 24m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$439
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Wed 10/7
6:14 am-3:12 pm
2 stops7h 58m
Knoxville McGhee Tyson
Wed 10/14
6:05 pm-12:10 am
2 stops7h 05m
$443
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Sat 1/16
5:41 pm-9:50 am
1 stop15h 09m
Knoxville McGhee Tyson
Wed 1/20
10:45 am-2:00 pm
1 stop4h 15m
$523
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Tue 10/20
3:41 pm-8:49 pm
1 stop4h 08m
Knoxville McGhee Tyson
Fri 10/23
10:42 am-10:06 am
1 stop24h 24m
$523
PeoriaKnoxville
PIA Greater Peoria - TYS Knoxville McGhee Tyson
PIATYS
Greater Peoria
Sun 9/20
9:53 pm-3:28 pm
1 stop16h 35m
Knoxville McGhee Tyson
Thu 9/24
11:34 am-5:00 pm
1 stop6h 26m
$551
Showing 1-10 of 13 resultsSorted 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 September.
| 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 September 7, 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.
Food
6.4
Boarding
7.5
Overall
7.1
Entertainment
6.8
Crew
7.9
Comfort
7.2
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
Food
6.4
Boarding
7.5
Overall
7.1
Entertainment
6.8
Crew
7.9
Comfort
7.2
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
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