$34 Find Cheap Flights from Knoxville to Pennsylvania - Compare and Save

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 Pennsylvania departing on 10/25. 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.
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Cheap Flights from Knoxville to Pennsylvania

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Philadelphia
Philadelphianonstop$70
Pittsburgh
Pittsburgh1 stop$245
Harrisburg
Harrisburg1 stop$299
Allentown
Allentown1 stop$264
Scranton
Scranton1 stop$319
State College
State College1 stop$299
Erie
Erie1 stop$442
New York
Newarknonstop$104
Philadelphia
Philadelphianonstop$70
Pittsburgh
Pittsburgh1 stop$245
Harrisburg
Harrisburg1 stop$299
Allentown
Allentown1 stop$264
Scranton
Scranton1 stop$319
State College
State College1 stop$299
Erie
Erie1 stop$442
New York
Newarknonstop$104

Book Cheap Knoxville to Pennsylvania Plane Tickets

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

Fri, Sep 18 - Mon, Sep 21
Allegiant Air Logo
1:54 pm - 3:44 pm
TYS
-
PHL
1h 50mnonstop
Allegiant Air Logo
5:34 pm - 7:34 pm
PHL
-
TYS
2h 00mnonstop
$70Allegiant Air
Fri, Sep 18 - Mon, Sep 21
Allegiant Air Logo
1:54 pm - 3:44 pm
TYS
-
PHL
1h 50mnonstop
Allegiant Air Logo
5:34 pm - 7:34 pm
PHL
-
TYS
2h 00mnonstop
$78Allegiant Air
Fri, Sep 11 - Mon, Sep 14
Multiple Airlines Logo
1:31 pm - 12:30 am
TYS
-
PHL
10h 59m
1 stop
Multiple Airlines Logo
5:34 pm - 7:34 pm
PHL
-
TYS
2h 00mnonstop
$137Multiple Airlines
Fri, Oct 30 - Mon, Nov 2
Multiple Airlines Logo
9:41 pm - 12:32 pm
TYS
-
PHL
14h 51m
1 stop
Multiple Airlines Logo
4:52 pm - 6:52 pm
PHL
-
TYS
2h 00mnonstop
$148Multiple Airlines
Wed, Sep 30 - Sat, Oct 3
American Airlines Logo
7:15 am - 9:04 am
TYS
-
DCA
1h 49mnonstop
American Airlines Logo
3:49 pm - 5:36 pm
DCA
-
TYS
1h 47mnonstop
$193American Airlines
Wed, Sep 2 - Sat, Sep 5
American Airlines Logo
7:04 am - 8:57 am
TYS
-
DCA
1h 53mnonstop
American Airlines Logo
3:40 pm - 5:30 pm
DCA
-
TYS
1h 50mnonstop
$193American Airlines
Mon, Nov 2 - Mon, Nov 9
United Airlines Logo
5:45 am - 7:28 am
TYS
-
IAD
1h 43mnonstop
United Airlines Logo
10:12 pm - 11:59 pm
IAD
-
TYS
1h 47mnonstop
$193United Airlines
Wed, Oct 14 - Wed, Oct 28
United Airlines Logo
9:45 am - 11:31 am
TYS
-
IAD
1h 46mnonstop
United Airlines Logo
10:12 pm - 11:59 pm
IAD
-
TYS
1h 47mnonstop
$193United Airlines
Tue, Nov 3 - Sat, Nov 7
Delta Logo
5:40 am - 9:10 am
TYS
-
DCA
3h 30m
1 stop
Delta Logo
9:00 am - 1:31 pm
DCA
-
TYS
4h 31m
1 stop
$213Delta
Mon, Nov 2 - Mon, Nov 9
Delta Logo
2:38 pm - 8:44 pm
TYS
-
DCA
6h 06m
1 stop
Delta Logo
2:00 pm - 6:26 pm
DCA
-
TYS
4h 26m
1 stop
$213Delta
Booking Insights

KAYAK's insights & trends for Knoxville to Pennsylvania flights

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

How much is a round-trip flight from Knoxville to Pennsylvania?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Knoxville to Pennsylvania departing in September.

Flight prices are below average for this route right now.

Flights to Pennsylvania from Knoxville usually cost between $393 and $546 in September.
The lowest price found in the past 5 days was $70 on Allegiant Air (Sep 18-Sep 21).

What is the cheapest Knoxville to Pennsylvania flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Pennsylvania from Knoxville found in the last 5 days was to Philadelphia, at $136 round-trip. The most popular route is from Knoxville (TYS) to Philadelphia (PHL), and the cheapest round-trip airline ticket found on this route in the last 5 days was $136.

What is the cheapest time of day to fly to Pennsylvania?

The average price for all round-trip flights from Knoxville to Pennsylvania depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Pennsylvania is generally at night, when round-trip flights cost $504 on average. Morning departures are around 28% cheaper than evening flights, on average. The most expensive time of day to fly to Pennsylvania is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,030.

Can I save money by flying with a layover from Knoxville to Pennsylvania?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $301, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Pennsylvania, 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 Pennsylvania is December, when tickets cost $352 (return) on average. On the other hand, the most expensive months are April and March, when the average cost of round-trip tickets is $535 and $521 respectively.

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

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

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

How far in advance should I book a flight from Knoxville to Pennsylvania?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Knoxville to Pennsylvania, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Knoxville to Pennsylvania, you should book around 4 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low season

February

Cheapest flight

$34
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Knoxville to Washington Dulles Airport

FAQs - booking Pennsylvania flights

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

    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 Pennsylvania.

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

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

    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 from Knoxville to Pennsylvania with an airline and back with another airline.

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

    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 from Knoxville to Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Pennsylvania

  • Looking for a cheap flight? 25% of our users found tickets from Knoxville to the following destinations at these prices or less: Washington, D.C. $278 one-way - $324 round-trip; Washington, D.C. $176 one-way - $404 round-trip; Philadelphia $77 one-way - $445 round-trip

Reviews of the top 5 airlines serving from Knoxville to Pennsylvania

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Pennsylvania. 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 Pennsylvania? 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.
8.0
SouthwestOverall score based on 4230 reviews
8.6Crew
8.1Boarding
7.5Entertainment
7.0Food
8.0Comfort
Airline reviews

The flight was delayed due to earlier issues at other airports. The crew was excellent & made it a good trip.

6.0 GoodJeremy, Aug 2026
STL - PHL
Read more Southwest reviews

The flight was delayed due to earlier issues at other airports. The crew was excellent & made it a good trip.

I'm glad it wasn't only 75% full because I could get a good seat

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

I flew twice this week on Southwest, was delayed over 2 hours both ways. From Pittsburgh to Chicago it was due to weather but the gate agents, pilot etc were great at updating everyone. Today from Midway to Pittsburgh the plane had come from an international location, kept getting delayed, no information was given until we were delayed for the third time. It was ridiculous, whoever scheduled that plane to fly to Pittsburgh after didn’t consider a lot of things.

Still need to work out the kinks on the new assigned seating boarding process. Otherwise, a very good flight.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

The crew was very nice and respectful and everything went well.

Having a direct flight between Pittsburgh and Austin makes traveling so easy.

My flight home from Knoxville, TN, included a layover in Atlanta. I boarded the aircraft in Zone 5 and although there was limited overhead space, I was able to put my 'backpack' style roller-bag above my seat. Unfortunately, due to continued bad weather, we had to deplane. There were many people who would have missed their connection, so they rebooked. When we were re-boarding, the gate agent welcomed zone 5 and then made an announcement: All roller-bags for zone 5 passengers and higher will need to be gate checked. I promptly pushed the telescoping handle in and held my bag like a backpack. I was able to bring it on board, which was a relief. Upon entering the aircraft it became apparent that there was easily 40% open overhead space. There were audible signs of angry passengers who felt duped into checking their bags when in fact there were noticeably LESS passengers on the aircraft and TONS of overhead space. I'm not sure what kinds of parameters are used to determine when to cut off roller-bags from being brought on board, but it seemed deceptive and underhanded to have so many people get stuck checking their bags when clearly there was ample room for at least one more zone.

The CRJ-900 was clean but the overhead air vents were broken in our First Class row, making the cabin very hot until about 30 mins into the flight. The flight attendants were both extremely apologetic and accommodating though so that is why I rated the flight as very good. They checked on us many times and truly showed they cared. The snacks for an hour and a half flight could be better. Would be nice if there was a small plated meal over convenient store snacks. WiFi also was not working. And it would be nice if Delta had adjustable headrests on these planes.

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

My tray was broken so i had no place to work or eat except my lap. Flight attendant said I would get an email with some credit or miles, it was a complete waste of time as I could only function at about 20% of normal. I have not received anything yet.

Delayed. Hot. Passenger next to me was so large I couldn’t move.

2+hrs delay without any reason provided and a cramped flight

Originally, I was booked in economy. I paid several hundred additional dollars to upgrade to first class. Then I paid several more hundred dollars to change my flight to a slightly earlier flight. I asked if the changed flight would also seat me in first class, and I was told that it would. When I boarded the plane, however, I was seated in economy. So, I paid $500-600 more than I paid for my original ticket for an upgrade and a changed flight - received the changed flight (which was nice), but did not receive the upgrade. So, I was not completely satisfied.

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The head rest is too big and cannot be placed differently/removed. Causes one head to tilt forward and increase back pain

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

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

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

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

I still prefer Delta, but Delta doesn’t fly to State College PA.

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Nothing bad to say about the actual crew or airline. It was nice to have a complimentary FULL can of soda, as well as a snack. Blankets and earbuds were also provided at no cost for this red eye flight. I especially appreciated the free WiFi and movie selection with the Bluetooth option. It helped the flight pass more quickly. No matter who you fly, boarding and disembarking are always SUCH a pain. As I mentioned, this is on the passengers and not the crew!!

Ok so apparently the new policy on United Airlines is that customers in the main cabin should NEVER be served more than once and besides picking up trash there should NEVER be another interaction with the customer for any reason.

It was poor a four hour delay and no explanation for the delay. What’s a 35 dollars going to do. It also made me miss my car rental,

It was on time. Flight was comfortable. Staff was nice. It was the way a flight should always be.

The price was the only good thing about this flight. It was scary during takeoff when the plane tilted side to side. It made me feel very nervous as I have never had a take-off that unsmooth. There was no on-flight movie or music options and the only complimentary option was water. Other airlines offer trail mix or a caramel cookie and pop options as complimentary. This flight was a 2.5 hour flight. I understand for shorter flights not having options, but a flight 2 hours or longer should offer more complimentary options and in flight entertainment. Also the seats did not recline and for a longer flight reclining seats are a must for comfort.

A very pleasant flight but it would be greatly improved with wifi to help entertain kids

This is a no frills, get it done, efficient airline. The seat is a lawn chair. You better bring your own entertainment. If you want something other than water you need to pay for it. But they will get you to your destination quickly, on time, and then they will turn the flight around and go right back where they came from. Reliably. Couple times a week tops. If it fits into your schedule, you can’t get there cheaper or faster.

A three hour delay to board and then another hour on the tarmac because they couldn't get a tractor? Ugh.

Allegiant canceled the flight. The flight the next day was full. Allegiant did not provide any compensation besides a refund. Last time on Allegiant.

Seats were very uncomfortable and being charged for snacks and water.........

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

the first flight smelled like urine Ac didn’t work pathetic experience

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

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.

I didn’t like anything, being platinum pro get you absolutely nowhere and does not increase the customer service treatment whatsoever anymore. My flight was canceled and they put me on a flight eight hours later that would’ve got me back in the middle of the night. They could’ve easily move me up to an hour Prior on an earlier flight. My second flight was unreasonable to take, the third flight was also canceled due to mechanical issues like the first flight. I don’t know what’s going on with American, but they are falling apart, after seven flight changes I finally got home, Unreasonable.

This was a horrible American Airlines experience, and it discourages me from flying with them again. It may have stemmed from a mechanical delay, but it appeared that the team was unprepared to respond to the delay. After boarding, we waited an hour before finally taking off. After landing at our destination, we waited an additional hour on the tarmac waiting for a gate (at 8:00pm) to be assigned and cleared. The flight crew did their best, but they were clearly tired and also ready to be done for the day. Because of the delay, I missed a connecting flight. It was a very poor experience.

temp inside the plane was very hot and could not be adjusted.

Fantastic! If it had not been for a check-in agent in Knoxville I may have not gotten my passes on British Airways. I couldn’t check-in online because British Airways had messed us the info on my tickets to London & Inverness. AA’s was great! British Airways was a continuous series of delays and frustrations.

Smaller, regional aircraft limits amount of overhead luggage space. At least there were jetways at both BNA and PHL. First class food service was minimal with the usual assortment of packaged snacks (nothing creative) and no handiwipes. American tries to turn around aircraft too quickly without enough time to clean the planes. WIFI service did not include TV programming.

Wheelchair was waiting for me,changed to a better seat which was great as it's hard for me to walk

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

Information on your arrival and departure airports