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Cheap flights from Knoxville to Philadelphia from $93

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Philadelphia departing on 7/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Knoxville to Philadelphia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
4:05 pm - 5:55 pm
TYS
-
PHL
1h 50mnonstop
Allegiant Air Logo
6:45 pm - 8:48 pm
PHL
-
TYS
2h 03mnonstop
$177Allegiant Air
Sun, Jun 21 - Sun, Jun 28
Multiple Airlines Logo
7:00 am - 8:02 am
TYS
-
PHL
25h 02m
1 stop
Multiple Airlines Logo
5:10 am - 11:38 pm
PHL
-
TYS
18h 28m
1 stop
$194Multiple Airlines
Thu, Feb 19 - Mon, Feb 23
Multiple Airlines Logo
7:00 am - 8:02 am
TYS
-
PHL
25h 02m
1 stop
Multiple Airlines Logo
9:12 am - 11:38 pm
PHL
-
TYS
14h 26m
1 stop
$199Multiple Airlines
Thu, Feb 19 - Mon, Feb 23
Multiple Airlines Logo
9:36 pm - 8:44 am
TYS
-
PHL
11h 08m
1 stop
Multiple Airlines Logo
5:15 am - 8:13 pm
PHL
-
TYS
14h 58m
1 stop
$205Multiple Airlines
Fri, Feb 27 - Sat, Mar 7
Multiple Airlines Logo
9:36 pm - 11:23 am
TYS
-
PHL
13h 47m
1 stop
Multiple Airlines Logo
5:25 pm - 3:15 pm
PHL
-
TYS
21h 50m
1 stop
$206Multiple Airlines
Fri, Feb 27 - Mon, Mar 9
Multiple Airlines Logo
9:00 am - 8:44 am
TYS
-
PHL
23h 44m
2 stops
Multiple Airlines Logo
9:12 am - 11:38 pm
PHL
-
TYS
14h 26m
1 stop
$210Multiple Airlines
Wed, Feb 18 - Mon, Feb 23
Multiple Airlines Logo
1:01 pm - 11:10 pm
TYS
-
PHL
10h 09m
1 stop
Multiple Airlines Logo
6:26 pm - 8:29 pm
PHL
-
TYS
2h 03mnonstop
$211Multiple Airlines
Wed, May 20 - Sun, May 24
Multiple Airlines Logo
9:00 am - 8:12 am
TYS
-
PHL
23h 12m
1 stop
Multiple Airlines Logo
9:12 am - 11:38 pm
PHL
-
TYS
14h 26m
1 stop
$217Multiple Airlines
Wed, Feb 18 - Mon, Feb 23
Multiple Airlines Logo
11:54 am - 12:59 am
TYS
-
PHL
13h 05m
1 stop
Multiple Airlines Logo
5:28 pm - 10:26 pm
PHL
-
TYS
28h 58m
1 stop
$220Multiple Airlines
Thu, Mar 5 - Sat, Mar 7
Multiple Airlines Logo
6:30 am - 6:43 pm
TYS
-
PHL
12h 13m
1 stop
Multiple Airlines Logo
9:12 am - 11:38 pm
PHL
-
TYS
14h 26m
1 stop
$221Multiple Airlines
Fri, Feb 20 - Mon, Feb 23

Southwest flights from Knoxville to Philadelphia

Our best Southwest deals on Knoxville to Philadelphia flight tickets
Southwest
Mar 25
TYS6:35 amKnoxville McGhee Tyson
6h 55m
1 stop
PHL1:30 pmPhiladelphia
Mar 31
PHL8:55 amPhiladelphia
8h 45m
2 stops
TYS5:40 pmKnoxville McGhee Tyson
$292
Southwest
Mar 10
TYS6:35 amKnoxville McGhee Tyson
11h 55m
2 stops
PHL6:30 pmPhiladelphia
Mar 17
PHL8:55 amPhiladelphia
8h 45m
2 stops
TYS5:40 pmKnoxville McGhee Tyson
$303

American Airlines flights from Knoxville to Philadelphia

Our best American Airlines deals on Knoxville to Philadelphia flight tickets
American Airlines
Feb 6
TYS7:44 amKnoxville McGhee Tyson
1h 55m
PHL9:39 amPhiladelphia
Feb 7
PHL6:44 pmPhiladelphia
2h 12m
TYS8:56 pmKnoxville McGhee Tyson
$422
American Airlines
Feb 6
TYS6:05 amKnoxville McGhee Tyson
6h 28m
1 stop
PHL12:33 pmPhiladelphia
Feb 7
PHL12:18 pmPhiladelphia
2h 14m
TYS2:32 pmKnoxville McGhee Tyson
$432
American Airlines
Feb 7
TYS2:19 pmKnoxville McGhee Tyson
1h 58m
PHL4:17 pmPhiladelphia
Feb 10
PHL6:44 pmPhiladelphia
2h 12m
TYS8:56 pmKnoxville McGhee Tyson
$455

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Knoxville to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sun 6/21

4:05 pm-5:55 pm

Nonstop1h 50m

Philadelphia

Sun 6/28

6:45 pm-8:48 pm

Nonstop2h 03m

$177

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 2/19

7:00 am-8:02 am

1 stop25h 02m

Philadelphia

Mon 2/23

5:10 am-11:38 pm

1 stop18h 28m

$194

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 2/19

7:00 am-8:02 am

1 stop25h 02m

Philadelphia

Mon 2/23

9:12 am-11:38 pm

1 stop14h 26m

$199

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Fri 2/27

9:36 pm-8:44 am

1 stop11h 08m

Philadelphia

Sat 3/7

5:15 am-8:13 pm

1 stop14h 58m

$205

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Fri 2/27

9:36 pm-11:23 am

1 stop13h 47m

Philadelphia

Mon 3/9

5:25 pm-3:15 pm

1 stop21h 50m

$206

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 2/18

9:00 am-8:44 am

2 stops23h 44m

Philadelphia

Mon 2/23

9:12 am-11:38 pm

1 stop14h 26m

$210

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 5/20

1:01 pm-11:10 pm

1 stop10h 09m

Philadelphia

Sun 5/24

6:26 pm-8:29 pm

Nonstop2h 03m

$211

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 2/18

9:00 am-8:12 am

1 stop23h 12m

Philadelphia

Mon 2/23

9:12 am-11:38 pm

1 stop14h 26m

$217

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 3/5

11:54 am-12:59 am

1 stop13h 05m

Philadelphia

Sat 3/7

5:28 pm-10:26 pm

1 stop28h 58m

$220

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Fri 2/20

6:30 am-6:43 pm

1 stop12h 13m

Philadelphia

Mon 2/23

9:12 am-11:38 pm

1 stop14h 26m

$221

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Philadelphia from

How to get the cheapest flight ticket from Knoxville to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Knoxville is in January. Flight prices, which tend to average around $447, are often lower during this time because this is during the off-season. The month of July is another great option to travel to Philadelphia, with average flight prices from Knoxville averaging around $447.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Knoxville to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $564. On the other hand, Sunday is the most expensive day to depart from Knoxville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $865.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the morning. momondo users have found flights departing from Knoxville to Philadelphia in the morning for as low as $518. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is at noon when prices are around $889.

What is the cheapest Knoxville McGhee Tyson to Philadelphia flight route?

Fly from Knoxville McGhee Tyson to Philadelphia for the best Knoxville McGhee Tyson - Philadelphia flight prices

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

You are more likely to see cheaper flights to Philadelphia from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $474 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Knoxville for as low as $355 on momondo.

What cabin class options are available on Knoxville McGhee Tyson to Philadelphia flights?

There are 4 cabin classes available to choose from on Knoxville McGhee Tyson to Philadelphia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Knoxville to Philadelphia flights?

You could potentially save up to 56% on your flight if you consider stops on a Knoxville to Philadelphia flight.

How have Knoxville to Philadelphia flight prices changed over time?

As of February 2026, prices for Knoxville to Philadelphia flights are approximately 35% more expensive when compared to flights at the same time last year.

When to book flights from Knoxville to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Philadelphia (TYS to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Philadelphia

Best Price Found

$332

Fastest flight time

1h 50m

Direct flights

Every day

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Knoxville in the past 72 hours is $332. The best round-trip flight deal from Knoxville to Philadelphia found on momondo in the last 72 hours is $475.
The fastest flight from Knoxville to Philadelphia takes 1h 50m
Direct flights go from Knoxville to Philadelphia every day.
There is 1 airport in Philadelphia. From Knoxville there are direct flights to Philadelphia (PHL).
Search flight deals

  • How far is Knoxville McGhee Tyson to Philadelphia by plane?

    A flight from Knoxville McGhee Tyson to Philadelphia will travel around 550.8 mi. In terms of flight time, this usually takes a little over 1h 50m.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Philadelphia Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Philadelphia Airport were last updated today.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Philadelphia Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Philadelphia Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Knoxville to Philadelphia?

  • What is the most popular airline from Knoxville to Philadelphia?

Best airlines flying from Knoxville to Philadelphia

Compare and see reviews for airlines that fly from Knoxville to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $355Free CancellationRating
7.2
11,222 reviews
Search American Airlines flights

  • American Airlines Flights From Knoxville to Philadelphia

    Across 14 American Airlines flights from Knoxville to Philadelphia this week, the average price was $467, with the best American Airlines deals starting from $355 round-trip. 11,222 users have rated American Airlines on momondo, with an average score of 7.2/10.

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Wildwood Crest
Ocean City
King of Prussia
Cherry Hill
Newark
Dewey Beach
Reading
North Wildwood
Avalon
Dover
Lewes
Stone Harbor
Essington
Vineland
New Castle
Elkton
Pottstown

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Philadelphia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Knoxville to Philadelphia for you.

Can I find flights from Knoxville to Philadelphia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Knoxville to Philadelphia flights to just show those with flexible booking policies.

How can momondo help me find flights from Knoxville to Philadelphia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Knoxville to Philadelphia.

I’m not ready to book a flight from Knoxville to Philadelphia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Philadelphia, momondo offers a useful price alert feature which will track prices for flights to Philadelphia from Knoxville and alert you when they change.

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