TYS - PHL

$100 Find Cheap Flights from Knoxville to Philadelphia

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 Philadelphia departing on 2/12. 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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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Philadelphia, 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 Philadelphia, as well as popular online travel agencies
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Cheap Flight Deals from Knoxville to Philadelphia (TYS-PHL)

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

Recent round-trip flight deals from Knoxville to Philadelphia

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Knoxville to Philadelphia.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:53 pm - 10:56 pmTYS-PHL
10h 03m1 stop
6:29 pm - 6:36 pmPHL-TYS
24h 07m2 stops
Thu, Mar 6 - Mon, Mar 10
4:23 pm - 5:05 amTYS-PHL
12h 42m1 stop
6:40 am - 3:43 pmPHL-TYS
9h 03m1 stop
$230Frontier
Find Deal
Thu, Mar 6 - Sun, Mar 9
12:53 pm - 10:56 pmTYS-PHL
10h 03m1 stop
9:14 pm - 6:36 pmPHL-TYS
21h 22m3 stops
Thu, Mar 6 - Mon, Mar 10
12:53 pm - 10:56 pmTYS-PHL
10h 03m1 stop
6:49 am - 9:21 pmPHL-TYS
14h 32m1 stop
Thu, Mar 6 - Mon, Mar 10
6:00 am - 12:50 pmTYS-PHL
6h 50m1 stop
1:50 pm - 7:35 pmPHL-TYS
5h 45m1 stop
$249American Airlines
Find Deal
Tue, Feb 11 - Tue, Feb 11
7:56 am - 9:50 amTYS-PHL
1h 54mnonstop
11:07 am - 5:06 pmPHL-TYS
5h 59m1 stop
$284American Airlines
Find Deal
Tue, Feb 11 - Tue, Feb 11
7:30 am - 11:50 amTYS-PHL
4h 20m1 stop
6:23 pm - 11:46 pmPHL-TYS
5h 23m1 stop
$375Delta
Find Deal
Wed, Apr 23 - Sat, Apr 26
7:25 pm - 12:24 amTYS-PHL
4h 59m1 stop
5:55 am - 11:07 amPHL-TYS
5h 12m1 stop
$416Delta
Find Deal
Wed, Jun 4 - Sun, Jun 8
9:55 am - 2:03 pmTYS-PHL
4h 08m1 stop
10:40 am - 11:00 pmPHL-TYS
12h 20m2 stops
$499United Airlines
Find Deal
Sat, Feb 22 - Tue, Feb 25
7:00 am - 2:03 pmTYS-PHL
7h 03m2 stops
1:00 pm - 9:59 amPHL-TYS
20h 59m2 stops
$504United Airlines
Find Deal
Sat, Feb 22 - Tue, Feb 25

Flights from Knoxville to Philadelphia - Travel Insights & Trends

Get data-powered insights and trends into flights from Knoxville to Philadelphia 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 Philadelphia?

The average price of all round-trip flights from Knoxville to Philadelphia clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Philadelphia on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Knoxville to Philadelphia. For your return ticket, we recommend flying on a Tuesday and avoiding Fridays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Philadelphia, 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 Philadelphia is June, where tickets cost $188 (return) on average. On the other hand, the most expensive months are April and March, where the average cost of round-trip tickets is $486 and $480 respectively.

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

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 Philadelphia, 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 Philadelphia, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low season

February

High season

May

Cheapest flight

$100
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Knoxville to Philadelphia

When to book flights from Knoxville to Philadelphia

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

  • What is the cheapest flight from Knoxville to Philadelphia?

    In the last 3 days, the lowest price for a flight from Knoxville to Philadelphia was $100 for a one-way ticket and $225 for a round-trip.

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

    A passport is not required to fly from Knoxville to Philadelphia.

  • Which airlines offer Wi-Fi service onboard planes from Knoxville to Philadelphia?

    All the following airlines offer inflight Wi-Fi service on the Knoxville to Philadelphia flight route: American Airlines, Virgin Atlantic, KLM, WestJet, Delta, Air Canada, Air France, and JetBlue.

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

    The Canadair (Bombardier) Regional Jet 900 is the aircraft model that flies most regularly on the Knoxville to Philadelphia flight route.

  • Which airline alliances offer flights from Knoxville to Philadelphia?

    oneworld is the only airline alliance operating flights between Knoxville and Philadelphia.

  • On which days can I fly direct from Knoxville to Philadelphia?

    There are nonstop flights from Knoxville to Philadelphia on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Knoxville to Philadelphia are Delta and United Airlines. With an average price for the route of $373 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $364 and an overall rating of 7.4.

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

    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 Philadelphia.

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

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

    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 Philadelphia with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and PHL 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 Philadelphia?

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

See more FAQs

KAYAK’s top tips for finding a cheap flight from Knoxville to Philadelphia

  • Looking for a cheap flight? 25% of our users found flights on this route for $286 or less one-way and $583 or less round-trip.

Prefer to fly direct from Knoxville to Philadelphia?

Find which airlines fly direct from Knoxville McGhee Tyson Airport to Philadelphia Airport, which days they fly and book direct flights.

Direct departures

Knoxville McGhee Tyson to Philadelphia

Monday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Tuesday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Wednesday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Thursday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Friday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Saturday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Sunday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

See more direct flights

Direct returns

Philadelphia to Knoxville McGhee Tyson

Monday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Tuesday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Wednesday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Thursday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Friday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Saturday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

Sunday

Alaska Airlines, American Airlines, British Airways, +1 more

Alaska Airlines, American Airlines, +2 more

See more direct flights
See more direct flights

Top 4 airlines serving from Knoxville to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Philadelphia. 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 Philadelphia? 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
DeltaOverall score based on 8456 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.3Food
8.0Comfort
Airline reviews

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

10.0 ExcellentD, Jan 2025ABE - ATL
Read more Delta reviews

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Flight left early and arrived early. the whole trip was excellent.

Seats were really tight and the seat belts did not give enough slack.

I like in St George and prefer to fly out of CDC than SGU. Hopefully, they will continue the flights out of Cedar

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

Newer plane, relatively easy boarding, not a full flight and was told that we could not be moved up because of weight and balance issues. Otherwise, a very good experience.

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.

I was with one of the last zones to board. It was kind of annoying to finally get called to board and my whole section was already on the plane. Clearly they boarded with previous zones. So by the time I got on board, there were no spaces for my luggage above my head. I had to put my luggage 4+ rows behind me, which meant that I had to wait even longer to get off the plane, since I had to wait for those rows to clear the aisle before I could retrieve my luggage and exit the plane. This also held up the plane cleaners, as they couldn't service my row until I cleared it, so they were all standing there waiting for me, while I'm standing there waiting for the other passengers to clear the aisle. Anyways, I wasn't in a rush this time, so I just waited, but I could see that being a problem in the future. Now, I could have checked my luggage, of course, but coincidentally, a friend of mine on the same flight got their luggage damaged (wheel completely knocked off) and was told by the Baggage Attendant in the airport that Delta doesn't "cover wheel damage" on luggage. This was disappointing to hear. I'm glad I didn't check mine through. If it were my luggage, I'd be highly frustrated to hear that. It makes me not want to check my luggage in the future.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

Food choices were very limited. Taste of the dishes was average.

Maybe add a seat trade app for flyers that didn’t get seats together

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence.

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

The crew were very nice. The Chocolate is good and v there’s no entertainment. Thanks

The crew were very nice. I would have appreciated a pillow for comfort. I had a special meal that was sloppy, but the salad was great. Thanks

I liked all the informational texts. I always knew where to go and when .

Liked the hospitality . The ight took us 6 hrs to get from fort myers to ewr.

Timely boarding process, made up for lost time even after a lengthy wait for de-icing

My seat was wonky...hard and not much padding. I sat next to the Jumpseat for the flight attendant. Thoroughly enjoyed not have a third seat in that row! Flight attendants were amazing. I couldn't answer the "food quality" question as there is no food served on my short flight. I commend the pilot as I know it was super gusty when we landed. Thanks

I think I paid for an extra legroom seat and to be honest, there was not a lot of space available for my not very long legs. The flight was totally full and the staff did everything possible to meet the needs of all passengers. My only concern was for the size and spacing of my seat.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

Overall flight was as expected. It would have been better with a couple options for snack instead of only one item and if there was a TV or music as option. But overall satisfied.

American switched my flight to a 5 hour layover then cancelled my whole reservation with no notice and refused refund. Won’t fly with them again.

AA is fabulous. However , Iberia cancelled our Boston - Barcelona flight the morning of the flight - 9/16/24. This was almost a week ago and we have still heard nothing from Iberia/Vueling. Found out from a kayak email that morning that the flight was cancelled. Iberia Customer service reps wouldn’t help us and said to call Vueling. No one answers phone at Vueling. Terrible wild goose chase on DAY OF TRAVEL. AA came to our rescue.

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

It was late, then the bathroom was inoperable plus it was very hot as well. Plane was very old

Very easy with the app to board and staff skills

After waiting several minutes to be acknowledged by 3 employees on their phones, was told we had missed our flight because the doors were closed at that literal moment. Had they given any actual service or help while we were standing there we would have been on with time to spare. More than 10 people were turned away in this fashion claiming there was no way they could let us on the plane, even though it was still sitting connected to the terminal. After the desk agents let us know they didn't care about the situation we were forced to pay more than twice the price of our original tickets as no credits were given for the price of the "missed" flight. And the icing on the cake was after being treated poorly, fleeced for another few hundred dollars for new tickets? We waited on the next plane for 25 minutes passed the "doors closed" time, letting almost an extra dozen passengers on board. You're company has lazy, disinterested employees and your lack of any real help will ensure this was the first and last time we fly Frontier. Awful.

My experience with the phoenix airport was terrible, the personnel lay the ticket counter charged me for a carry on that fit in the carry on size box, and the two women I spoke with were terribly rude and not willing to help.,,, there was one lady “candy” on the flight crew that was amazing and is the only reason I stayed on the flight at all, because the other stewards helping people to get seated on the plane were terrible

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

The plane was clean, the crew was friendly and helpful. It’s a low cost airline so there was no food, drinks or in flight entertainment but we didn’t expect any of these things. In the room for improvement department, they should install USB ports in seats to charge mobile devices.

The seats were extremely hard and uncomfortable, even for a budget airline.

The seats were extremely hard and uncomfortable. It was disappointing even for a budget airline.

Charging $74 for one checked bag is outrageous. I will never fly Frontier again.

Boarding was very well executed. Got my bag right away.

I was surprised that all baggage, including carry on, were charged. Each additional bag went up in cost. Really disappointed in the additional costs.

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