TYS - PIA

$249 Find Cheap Flights from Knoxville to Peoria

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Peoria departing on 1/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Peoria

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Peoria, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Peoria, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$249
Overall average: $238
United Airlines
Fri 1/23Mon 1/26
TYS - PIA • 1 stop
Cheapest one-way
Multiple Airlines
Wed 12/17
TYS - PIA • multi-stop
Top airlines
United Airlines
Cheapest • from $249 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 43% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Peoria!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Knoxville to Peoria (TYS-PIA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Peoria that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Knoxville to Peoria

Fri, Jan 23 - Mon, Jan 26
United Airlines Logo
6:45 am - 10:10 am
TYS
-
PIA
4h 25m1 stop
United Airlines Logo
1:24 pm - 8:52 pm
PIA
-
TYS
6h 28m1 stop
$249United Airlines
Fri, Jan 23 - Mon, Jan 26
American Airlines Logo
12:15 pm - 10:21 pm
TYS
-
PIA
11h 06m2 stops
American Airlines Logo
5:29 pm - 10:54 pm
PIA
-
TYS
4h 25m1 stop
$254American Airlines
Thu, Jan 22 - Fri, Jan 23
Allegiant Air Logo
8:30 am - 5:48 pm
TYS
-
PIA
10h 18m1 stop
Allegiant Air Logo
5:56 pm - 11:40 am
PIA
-
TYS
16h 44m1 stop
$257Allegiant Air
Fri, Jan 9 - Sun, Jan 11
United Airlines Logo
11:07 am - 2:23 pm
TYS
-
PIA
4h 16m1 stop
United Airlines Logo
1:24 pm - 8:52 pm
PIA
-
TYS
6h 28m1 stop
$309United Airlines
Wed, Dec 31 - Sun, Jan 4
United Airlines Logo
6:45 am - 12:20 pm
TYS
-
PIA
6h 35m1 stop
United Airlines Logo
3:30 pm - 10:39 pm
PIA
-
TYS
6h 09m1 stop
$339United Airlines
Thu, Jan 22 - Fri, Jan 23
Multiple Airlines Logo
8:30 am - 5:48 pm
TYS
-
PIA
10h 18m1 stop
Multiple Airlines Logo
9:29 pm - 5:09 pm
PIA
-
TYS
18h 40m3 stops
$411Multiple Airlines
Thu, Jan 22 - Fri, Jan 23
American Airlines Logo
8:09 am - 4:32 pm
TYS
-
PIA
9h 23m2 stops
American Airlines Logo
5:16 pm - 12:46 pm
PIA
-
TYS
18h 30m1 stop
$422American Airlines
Fri, Jan 9 - Sun, Jan 11
United Airlines Logo
7:20 pm - 12:38 pm
TYS
-
PIA
18h 18m2 stops
United Airlines Logo
3:00 pm - 8:52 pm
PIA
-
TYS
4h 52m1 stop
$429United Airlines
Tue, Dec 30 - Sat, Jan 3
United Airlines Logo
11:00 am - 2:08 pm
TYS
-
PIA
4h 08m1 stop
United Airlines Logo
5:19 pm - 10:39 pm
PIA
-
TYS
4h 20m1 stop
$434United Airlines
Tue, Dec 30 - Sat, Jan 3
American Airlines Logo
5:23 am - 10:10 am
TYS
-
PIA
5h 47m1 stop
American Airlines Logo
6:00 am - 2:21 pm
PIA
-
TYS
7h 21m2 stops
$453American Airlines
Booking Insights

KAYAK's insights & trends for Knoxville to Peoria flights

Get data-powered insights and trends into flights from Knoxville to Peoria to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Knoxville to Peoria?

The average price of all round-trip flights from Knoxville to Peoria clicked on KAYAK for each day over the last 12 months.

When flying from Knoxville to Peoria, you should consider leaving on a Wednesday and avoid Thursdays if you are looking for the best rates. For your return to Knoxville, you’ll find the best rates on Tuesdays and the most expensive ones on Thursdays.

What is the cheapest month to fly from Knoxville to Peoria?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Peoria, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Knoxville to Peoria is October, where tickets cost $228 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $756 and $635 respectively.

Good to know

Low seasonMarch
Cheapest flight$249
Best time to beat the crowds but there is an average 88% increase in price.
Most popular time to fly and prices are also 41% lower on average.
Flight from Knoxville to Peoria

When to book flights from Knoxville to Peoria

Are your dates flexible? Find out the best times to travel from Knoxville to Peoria based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Knoxville to Peoria

  • What is the cheapest flight from Knoxville to Peoria?

    In the last 3 days, the lowest price for a flight from Knoxville to Peoria was $249 for a round-trip ticket.

  • Do I need a passport to fly between Knoxville and Peoria?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Knoxville to Peoria?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to Peoria?

    Star Alliance, and oneworld are the airline alliances operating flights between Knoxville and Peoria, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to Peoria, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to Peoria are United Airlines and American Airlines. With an average price for the route of $373 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $288 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Knoxville to Peoria?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knoxville to Peoria.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to Peoria?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Peoria from Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to Peoria?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Peoria with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and PIA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to Peoria?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Peoria from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Knoxville to Peoria

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Peoria. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to Peoria? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9092 reviews
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
6.6Food
Airline reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

10.0 ExcellentRoger, Dec 2025
CAE - ORD
Read more United Airlines reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Even though we were delayed, we were able to make our connection

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

Did not get any refreshments. Crew was very nice but limited. Small seats

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

Excellent - explanations were clear staff was nice and flight was comfortable

Everything you need to know for your flight from Knoxville to Peoria

Information on your arrival and departure airports