TYS - PHL

$68 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 5/21. 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 Philadelphia

 
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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$138
Typical prices: $400-$475
Allegiant Air
Thu 7/16Sun 7/19
TYS - PHL • Non-stop
Cheapest non-stop
$379
Typical prices: $355-$539
American Airlines
Tue 5/5Tue 5/19
TYS - PHL • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
American's Basic Economy offers budget travel with carry-on.
BA's economy fares include a decent carry-on bag.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
You can fly direct with American Airlines and Allegiant Air. Average duration is 1h 59m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $248 (round-trip)
Shortest trip • 4h 00m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 11% price drop
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 Philadelphia!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Knoxville to Philadelphia

Thu, Jul 16 - Sun, Jul 19
Allegiant Air Logo
3:38 pm - 5:28 pm
TYS
-
PHL
1h 50mnonstop
Allegiant Air Logo
6:18 pm - 8:21 pm
PHL
-
TYS
2h 03mnonstop
$138Allegiant Air
Thu, Apr 23 - Sun, Apr 26
Multiple Airlines Logo
1:14 pm - 11:57 pm
TYS
-
PHL
10h 43m
1 stop
Multiple Airlines Logo
10:38 pm - 10:24 pm
PHL
-
TYS
23h 46m
1 stop
$191Multiple Airlines
Wed, May 27 - Thu, Jun 4
Multiple Airlines Logo
1:01 pm - 3:42 pm
TYS
-
PHL
26h 41m
1 stop
Multiple Airlines Logo
6:27 pm - 8:30 pm
PHL
-
TYS
2h 03mnonstop
$194Multiple Airlines
Thu, May 7 - Wed, May 13
Multiple Airlines Logo
9:40 pm - 9:49 am
TYS
-
PHL
12h 09m
1 stop
Multiple Airlines Logo
6:12 pm - 8:50 pm
PHL
-
TYS
26h 38m
1 stop
$201Multiple Airlines
Fri, May 15 - Thu, May 21
Multiple Airlines Logo
1:15 pm - 11:37 pm
TYS
-
PHL
10h 22m
1 stop
Multiple Airlines Logo
6:53 pm - 8:56 pm
PHL
-
TYS
2h 03mnonstop
$206Multiple Airlines
Sun, Jun 7 - Wed, Jun 10
Multiple Airlines Logo
3:46 pm - 5:36 pm
TYS
-
PHL
1h 50mnonstop
Multiple Airlines Logo
6:57 pm - 10:16 pm
PHL
-
TYS
27h 19m
1 stop
$208Multiple Airlines
Wed, Apr 22 - Thu, Apr 23
Multiple Airlines Logo
4:25 pm - 11:37 pm
TYS
-
PHL
7h 12m
1 stop
Multiple Airlines Logo
7:00 am - 8:42 pm
PHL
-
TYS
13h 42m
2 stops
$213Multiple Airlines
Thu, May 14 - Mon, May 18
Multiple Airlines Logo
9:40 pm - 9:49 am
TYS
-
PHL
12h 09m
1 stop
Multiple Airlines Logo
5:45 am - 12:25 pm
PHL
-
TYS
6h 40m
1 stop
$215Multiple Airlines
Thu, May 14 - Sun, May 17
Multiple Airlines Logo
9:40 pm - 9:49 am
TYS
-
PHL
12h 09m
1 stop
Multiple Airlines Logo
6:12 pm - 12:25 pm
PHL
-
TYS
18h 13m
1 stop
$217Multiple Airlines
Thu, Apr 30 - Tue, May 5
Multiple Airlines Logo
3:40 pm - 11:37 pm
TYS
-
PHL
7h 57m
1 stop
Multiple Airlines Logo
6:12 pm - 10:36 am
PHL
-
TYS
16h 24m
1 stop
$218Multiple Airlines
Booking Insights

KAYAK's insights & trends for Knoxville to Philadelphia flights

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.

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

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 Philadelphia departing in July.

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 Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Knoxville to Philadelphia. For your return ticket, we recommend flying on a Wednesday and avoiding Mondays 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 February, where tickets cost $422 (return) on average. On the other hand, the most expensive months are November and October, where the average cost of round-trip tickets is $549 and $490 respectively.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $447 on average.

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 1 week before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Expert advice

Expert advice for your flight from Knoxville to Philadelphia

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$69
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 1% increase in price.
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 $69 for a one-way ticket and $191 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, Air France, Delta, KLM, and JetBlue.

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

    The Embraer ERJ-145 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.

  • 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.

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 $253 or less one-way and $479 or less round-trip.

Prefer to fly direct from Knoxville to Philadelphia?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Knoxville McGhee Tyson 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

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines,Allegiant Air

American Airlines,Allegiant Air

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines,Allegiant Air

American Airlines,Allegiant Air

See more direct flights

Direct returns

Philadelphia to Knoxville McGhee Tyson

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines,Allegiant Air

American Airlines,Allegiant Air

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines,Allegiant Air

American Airlines,Allegiant Air

See more direct flights

Reviews of the top airline flying 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.
7.1
American AirlinesOverall score based on 11473 reviews
7.2Comfort
6.4Food
7.5Boarding
7.9Crew
6.9Entertainment
Airline reviews

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

2.0 MediocreLisa, Mar 2026
CLT - PHL
Read more American Airlines reviews

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

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.

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 Philadelphia

Information on your arrival and departure airports