TYS - PIT

$146 Find Cheap Flights from Knoxville to Pittsburgh

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Pittsburgh departing on 3/19. 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 Pittsburgh

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Pittsburgh, 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 Pittsburgh, as well as popular online travel agencies
Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$204
Allegiant Air
Fri 5/29Mon 6/1
TYS - PIT • 1 stop
Cheapest one-way
$136
Typical prices: $283-$293
Multiple Airlines
Thu 3/19
TYS - PIT • 2 stops
Top airlines
Cheapest • from $204 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Knoxville and Pittsburgh. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $228 (round-trip)
Shortest trip • 3h 28m (one-way)
Insights
Insights
Insights
Insights
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 Pittsburgh!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Knoxville to Pittsburgh (TYS-PIT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Pittsburgh 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 Pittsburgh

Fri, May 29 - Mon, Jun 1
Allegiant Air Logo
6:00 am - 2:54 pm
TYS
-
PIT
8h 54m
1 stop
Allegiant Air Logo
6:00 am - 10:01 pm
PIT
-
TYS
16h 01m
1 stop
$204Allegiant Air
Fri, May 29 - Mon, Jun 1
Multiple Airlines Logo
12:55 pm - 9:28 pm
TYS
-
PIT
8h 33m
2 stops
Multiple Airlines Logo
6:00 am - 10:01 pm
PIT
-
TYS
16h 01m
1 stop
$258Multiple Airlines
Thu, Apr 23 - Sun, Apr 26
Allegiant Air Logo
12:37 pm - 11:24 pm
TYS
-
PIT
10h 47m
1 stop
Allegiant Air Logo
7:00 am - 8:27 pm
PIT
-
TYS
13h 27m
1 stop
$262Allegiant Air
Wed, Apr 29 - Sat, May 2
American Airlines Logo
5:00 am - 9:43 am
TYS
-
PIT
4h 43m
1 stop
American Airlines Logo
3:30 pm - 10:24 pm
PIT
-
TYS
6h 54m
1 stop
$271American Airlines
Mon, Jun 1 - Wed, Jun 3
Multiple Airlines Logo
12:55 pm - 9:28 pm
TYS
-
PIT
8h 33m
2 stops
Multiple Airlines Logo
6:35 am - 5:58 pm
PIT
-
TYS
11h 23m
1 stop
$276Multiple Airlines
Wed, Apr 1 - Mon, Apr 6
United Airlines Logo
7:00 am - 1:05 pm
TYS
-
PIT
6h 05m
1 stop
United Airlines Logo
4:07 pm - 10:34 pm
PIT
-
TYS
6h 27m
1 stop
$277United Airlines
Wed, Apr 29 - Sat, May 2
Southwest Logo
5:50 pm - 9:20 pm
TYS
-
PIT
3h 30m
1 stop
Southwest Logo
7:15 am - 6:30 pm
PIT
-
TYS
11h 15m
2 stops
$278Southwest
Thu, Apr 23 - Sun, Apr 26
Multiple Airlines Logo
11:27 am - 9:28 pm
TYS
-
PIT
10h 01m
2 stops
Multiple Airlines Logo
7:00 am - 8:27 pm
PIT
-
TYS
13h 27m
1 stop
$281Multiple Airlines
Wed, Apr 1 - Mon, Apr 6
United Airlines Logo
7:00 am - 1:54 pm
TYS
-
PIT
6h 54m
2 stops
United Airlines Logo
4:07 pm - 10:34 pm
PIT
-
TYS
6h 27m
1 stop
$282United Airlines
Wed, Apr 29 - Sat, May 2
Southwest Logo
7:05 am - 5:20 pm
TYS
-
PIT
10h 15m
2 stops
Southwest Logo
7:15 am - 6:30 pm
PIT
-
TYS
11h 15m
2 stops
$283Southwest
Booking Insights

KAYAK's insights & trends for Knoxville to Pittsburgh flights

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

Which airlines provide the cheapest flights from Knoxville to Pittsburgh?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Knoxville to Pittsburgh were found on Allegiant Air ($204) and American Airlines ($271).

Good to know

Low seasonSeptember
Cheapest flight$136
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Knoxville to Pittsburgh

When to book flights from Knoxville to Pittsburgh

Are your dates flexible? Find out the best times to travel from Knoxville to Pittsburgh 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 Pittsburgh

  • What is the cheapest flight from Knoxville to Pittsburgh?

    In the last 3 days, the lowest price for a flight from Knoxville to Pittsburgh was $136 for a one-way ticket and $204 for a round-trip.

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

    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 Pittsburgh?

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

  • Which airline alliances offer flights from Knoxville to Pittsburgh?

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

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

    The two airlines most popular with KAYAK users for flights from Knoxville to Pittsburgh are Delta and United Airlines. With an average price for the route of $288 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $316 and an overall rating of 7.4.

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

    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 Pittsburgh.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Pittsburgh 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 Pittsburgh?

    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 Pittsburgh with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and PIT 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 Pittsburgh?

    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 Pittsburgh 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 3 airlines serving from Knoxville to Pittsburgh

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Pittsburgh. 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 Pittsburgh? 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.
7.9
DeltaOverall score based on 8291 reviews
8.1Boarding
7.9Comfort
7.8Entertainment
7.2Food
8.5Crew
Airline reviews

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

2.0 MediocreSusan, Mar 2026
JAX - ATL
Read more Delta reviews

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

I didn't end up taking this flight. I got up at 4am for a flight that was supposed to board at 6am - at 5:55am you delayed the flight to 10am. The airport is under construction so I switched to a later flight as I wasn't going to sit in the airport for 4 hours. They said the delay was due to the crew needing rest from a flight coming in late the night before - if that was the case then I think you should have delayed the flight much sooner so that passengers wouldn't get up so early and get to the airport to sit and wait.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

I very rarely fly American and my experience today reenforces that is the correct decision. While the staff were all very courteous, our flight was first thing in the morning so there was no reason to be delayed, yet appropriate maintenance checks weren’t completed prior to our flight so we were delayed multiple times. Not a great showing, American Airlines.

Boarding is always an ordeal. Less dogs on flights. I am highly allergic to dogs and cats. Why are there so many animals these days?

I was on a small regional flight from Detroit to Philadelphia. When we landed the outside cruise needed to turn something off with the engine, which took quite a long time. Then, when they allowed us to get off the plane it was outside. They took their time, unloading all the luggage and waited till they unloaded all the luggage before they brought it over to us. It was 9 o’clock at night freezing cold out, and there was no proactive hustle to try to get people their luggage. It was really one of the worst experiences I think I’ve ever had with American until a manager came over. I don’t think they were going to even consider pulling the luggage over to the people that had been waiting outside for at least 10 minutes in the freezing cold.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The seat cushions were very worn so they were extremely uncomfortable.

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

Information on your arrival and departure airports