Cheap flights from Knoxville to Pennsylvania from $30

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 Pennsylvania departing on 5/14. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
3:46 pm - 5:36 pm
TYS
-
PHL
1h 50mnonstop
Allegiant Air Logo
6:26 pm - 8:29 pm
PHL
-
TYS
2h 03mnonstop
$83Allegiant Air
Thu, May 28 - Sun, May 31
Allegiant Air Logo
2:56 pm - 4:46 pm
TYS
-
PHL
1h 50mnonstop
Allegiant Air Logo
5:36 pm - 7:39 pm
PHL
-
TYS
2h 03mnonstop
$87Allegiant Air
Thu, Aug 13 - Sun, Aug 16
Multiple Airlines Logo
11:27 am - 1:11 pm
TYS
-
IAD
1h 44mnonstop
Multiple Airlines Logo
6:22 pm - 4:15 pm
IAD
-
TYS
21h 53m
1 stop
$116Multiple Airlines
Thu, May 14 - Mon, Jun 1
Allegiant Air Logo
3:46 pm - 5:36 pm
TYS
-
PHL
1h 50mnonstop
Allegiant Air Logo
6:26 pm - 8:29 pm
PHL
-
TYS
2h 03mnonstop
$121Allegiant Air
Sun, May 24 - Sun, May 31
Multiple Airlines Logo
9:19 pm - 12:44 am
TYS
-
PHL
27h 25m
1 stop
Multiple Airlines Logo
6:26 pm - 8:29 pm
PHL
-
TYS
2h 03mnonstop
$136Multiple Airlines
Thu, May 28 - Sun, May 31
American Airlines Logo
6:00 am - 7:42 am
TYS
-
DCA
1h 42mnonstop
American Airlines Logo
1:48 pm - 3:34 pm
DCA
-
TYS
1h 46mnonstop
$185American Airlines
Wed, May 6 - Sat, May 9
American Airlines Logo
11:18 am - 12:59 pm
TYS
-
DCA
1h 41mnonstop
American Airlines Logo
7:45 pm - 9:31 pm
DCA
-
TYS
1h 46mnonstop
$198American Airlines
Wed, Jun 17 - Sat, Jun 20
United Airlines Logo
7:19 pm - 11:30 pm
TYS
-
MDT
4h 11m
1 stop
United Airlines Logo
6:15 am - 10:42 am
MDT
-
TYS
4h 27m
1 stop
$337United Airlines
Tue, Jun 2 - Tue, Jun 9
Delta Logo
7:11 am - 11:41 am
TYS
-
MDT
4h 30m
1 stop
Delta Logo
6:10 am - 10:10 am
MDT
-
TYS
4h 00m
1 stop
$363Delta
Sun, Aug 2 - Sun, Aug 16
Delta Logo
7:11 am - 11:41 am
TYS
-
MDT
4h 30m
1 stop
Delta Logo
6:10 am - 10:10 am
MDT
-
TYS
4h 00m
1 stop
$373Delta
Sun, Aug 2 - Sun, Aug 16

Allegiant Air flights from Knoxville to Pennsylvania

Our best Allegiant Air deals on Knoxville to Pennsylvania flight tickets
Allegiant Air
May 28
TYS3:46 pmKnoxville McGhee Tyson
1h 50m
PHL5:36 pmPhiladelphia
May 31
PHL6:26 pmPhiladelphia
2h 03m
TYS8:29 pmKnoxville McGhee Tyson
$83
Allegiant Air
Aug 13
TYS2:56 pmKnoxville McGhee Tyson
1h 50m
PHL4:46 pmPhiladelphia
Aug 16
PHL5:36 pmPhiladelphia
2h 03m
TYS7:39 pmKnoxville McGhee Tyson
$87
Allegiant Air
Apr 23
TYS11:27 amKnoxville McGhee Tyson
1h 44m
IAD1:11 pmWashington, D.C. Dulles Intl
Apr 26
IAD2:01 pmWashington, D.C. Dulles Intl
1h 40m
TYS3:41 pmKnoxville McGhee Tyson
$95

United Airlines flights from Knoxville to Pennsylvania

Our best United Airlines deals on Knoxville to Pennsylvania flight tickets
United Airlines
May 29
TYS5:45 amKnoxville McGhee Tyson
1h 45m
IAD7:30 amWashington, D.C. Dulles Intl
May 31
IAD9:00 amWashington, D.C. Dulles Intl
1h 42m
TYS10:42 amKnoxville McGhee Tyson
$217
United Airlines
May 30
TYS5:45 amKnoxville McGhee Tyson
1h 45m
IAD7:30 amWashington, D.C. Dulles Intl
May 31
IAD9:00 amWashington, D.C. Dulles Intl
1h 42m
TYS10:42 amKnoxville McGhee Tyson
$233
United Airlines
May 1
TYS7:18 pmKnoxville McGhee Tyson
1h 45m
IAD9:03 pmWashington, D.C. Dulles Intl
May 5
IAD12:45 pmWashington, D.C. Dulles Intl
1h 49m
TYS2:34 pmKnoxville McGhee Tyson
$279

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Pennsylvania 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 April 20, 2026.
Use the filters below to find and compare flights from Knoxville to Pennsylvania that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 5/28

3:46 pm-5:36 pm

Nonstop1h 50m

Philadelphia

Sun 5/31

6:26 pm-8:29 pm

Nonstop2h 03m

$83

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 8/13

2:56 pm-4:46 pm

Nonstop1h 50m

Philadelphia

Sun 8/16

5:36 pm-7:39 pm

Nonstop2h 03m

$87

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Thu 5/14

11:27 am-1:11 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Mon 6/1

6:22 pm-4:15 pm

1 stop21h 53m

$116

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sun 5/24

3:46 pm-5:36 pm

Nonstop1h 50m

Philadelphia

Sun 5/31

6:26 pm-8:29 pm

Nonstop2h 03m

$121

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 5/28

9:19 pm-12:44 am

1 stop27h 25m

Philadelphia

Sun 5/31

6:26 pm-8:29 pm

Nonstop2h 03m

$136

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Wed 5/6

6:00 am-7:42 am

Nonstop1h 42m

Washington, D.C. Reagan-National

Sat 5/9

1:48 pm-3:34 pm

Nonstop1h 46m

$185
Quickest round-trip

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Wed 6/17

11:18 am-12:59 pm

Nonstop1h 41m

Washington, D.C. Reagan-National

Sat 6/20

7:45 pm-9:31 pm

Nonstop1h 46m

$198

KnoxvilleHarrisburg

TYS - MDT

TYSMDT

Knoxville McGhee Tyson

Tue 6/2

7:19 pm-11:30 pm

1 stop4h 11m

Harrisburg

Tue 6/9

6:15 am-10:42 am

1 stop4h 27m

$337

KnoxvilleHarrisburg

TYS - MDT

TYSMDT

Knoxville McGhee Tyson

Sun 8/2

7:11 am-11:41 am

1 stop4h 30m

Harrisburg

Sun 8/16

6:10 am-10:10 am

1 stop4h 00m

$363

KnoxvilleHarrisburg

TYS - MDT

TYSMDT

Knoxville McGhee Tyson

Sun 8/2

7:11 am-11:41 am

1 stop4h 30m

Harrisburg

Sun 8/16

6:10 am-10:10 am

1 stop4h 00m

$373

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 Pennsylvania from

How to get the cheapest flight ticket from Knoxville to Pennsylvania

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 Pennsylvania?

The month of February is, on average, the cheapest month to fly to Pennsylvania from Knoxville, with most prices found around $422. If you don’t want to visit Pennsylvania in February, then you should wait until September to fly from Knoxville, when ticket prices are also cheap, with an average price of $437.

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

The cheapest day to depart on your flight to Pennsylvania is on a Friday when prices can be found for as low as $537. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $938. These prices are subject to change though, so be sure to set up a Price Alert for flights to Pennsylvania.

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

Our most recent data shows that the best time of day to fly to Pennsylvania is in the morning. Flights from Knoxville to Pennsylvania during this time can be as low as $508. In contrast, the most expensive time of day to depart to Pennsylvania is at noon when prices are around $1,002.

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

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

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

You are more likely to see cheaper flights to Pennsylvania from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Pennsylvania for around $474 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Pennsylvania from Knoxville for as low as $162 on momondo.

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

There are 4 cabin classes available to choose from on Knoxville McGhee Tyson to Pennsylvania 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 Pennsylvania flights?

No. A direct flight is the cheapest option for a flight between Knoxville to Pennsylvania.

Cheap Knoxville to Pennsylvania flight deals and tips

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

Best Price Found

$249

Fastest flight time

1h 33m

Direct flights

Every day

Airports in Pennsylvania

152 airports
The best one-way flight to Pennsylvania from Knoxville in the past 72 hours is $249. The best round-trip flight deal from Knoxville to Pennsylvania found on momondo in the last 72 hours is $479.
The fastest flight from Knoxville to Pennsylvania takes 1h 33m
Direct flights go from Knoxville to Pennsylvania every day.
There are 152 airports in Pennsylvania. From Knoxville there are direct flights to Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD).

Frequently asked questions about flying from Knoxville to Pennsylvania

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Pennsylvania.

  • What documentation or ID do you need to fly to Pennsylvania?

    The travel and health documents required for your trip to Pennsylvania can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Pennsylvania. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Knoxville to Pennsylvania

Compare and see reviews for airlines that fly from Knoxville to Pennsylvania with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $228Free CancellationRating
7.9
8,422 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,625 reviews
Search American Airlines flights
United AirlinesPriceFrom $232Free CancellationRating
7.4
9,607 reviews
Search United Airlines flights

Why use momondo?

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

Finding the right flight to Pennsylvania from Knoxville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Pennsylvania quick and easy, saving you time and money.

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

Flights from Knoxville to Pennsylvania with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Pennsylvania from Knoxville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

An easier way to manage your Pennsylvania trip

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1 adult
Wed 5/20
Wed 5/27

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