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Cheap flights from Pennsylvania to Knoxville from $43

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Knoxville departing on 12/18. 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 Pennsylvania to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
4:13 pm - 5:53 pm
IAD
-
TYS
1h 40mnonstop
Allegiant Air Logo
1:39 pm - 3:23 pm
TYS
-
IAD
1h 44mnonstop
$83Allegiant Air
Thu, Jan 15 - Thu, Jan 22
Allegiant Air Logo
4:57 pm - 6:37 pm
IAD
-
TYS
1h 40mnonstop
Allegiant Air Logo
1:39 pm - 3:23 pm
TYS
-
IAD
1h 44mnonstop
$87Allegiant Air
Sat, Jan 3 - Thu, Jan 15
Multiple Airlines Logo
8:35 am - 10:28 pm
IAD
-
TYS
13h 53m1 stop
Multiple Airlines Logo
1:39 pm - 3:23 pm
TYS
-
IAD
1h 44mnonstop
$135Multiple Airlines
Mon, Jan 12 - Sun, Jan 18
Multiple Airlines Logo
4:13 pm - 5:53 pm
IAD
-
TYS
1h 40mnonstop
Multiple Airlines Logo
3:53 pm - 10:42 am
TYS
-
IAD
18h 49m1 stop
$136Multiple Airlines
Sun, Jan 11 - Wed, Jan 21
American Airlines Logo
1:59 pm - 3:56 pm
DCA
-
TYS
1h 57mnonstop
American Airlines Logo
6:00 am - 7:46 am
TYS
-
DCA
1h 46mnonstop
$189American Airlines
Thu, Jan 8 - Sun, Jan 11
Delta Logo
7:30 pm - 11:45 pm
DCA
-
TYS
4h 15m1 stop
Delta Logo
5:40 am - 9:10 am
TYS
-
DCA
3h 30m1 stop
$209Delta
Mon, Jan 5 - Sun, Jan 11
American Airlines Logo
6:59 am - 12:46 pm
DCA
-
TYS
5h 47m1 stop
American Airlines Logo
2:17 pm - 3:59 pm
TYS
-
DCA
1h 42mnonstop
$223American Airlines
Thu, Jan 8 - Sun, Jan 11
United Airlines Logo
7:00 am - 1:24 pm
PIT
-
TYS
6h 24m1 stop
United Airlines Logo
11:10 am - 4:50 pm
TYS
-
PIT
5h 40m1 stop
$223United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
8:56 am - 1:24 pm
PIT
-
TYS
4h 28m1 stop
United Airlines Logo
9:30 am - 7:09 pm
TYS
-
PIT
9h 39m2 stops
$228United Airlines
Sat, Jan 17 - Tue, Jan 20
Delta Logo
6:49 pm - 11:26 pm
DCA
-
TYS
4h 37m1 stop
Delta Logo
6:09 pm - 10:33 pm
TYS
-
DCA
4h 24m1 stop
$244Delta
Sun, Jan 4 - Thu, Jan 15

Allegiant Air flights from Pennsylvania to Knoxville

Our best Allegiant Air deals on Pennsylvania to Knoxville flight tickets
Allegiant Air
Jan 15
IAD4:13 pmWashington, D.C. Dulles Intl
1h 40m
TYS5:53 pmKnoxville McGhee Tyson
Jan 22
TYS1:39 pmKnoxville McGhee Tyson
1h 44m
IAD3:23 pmWashington, D.C. Dulles Intl
$83
Find similar
Allegiant Air
Jan 3
IAD4:57 pmWashington, D.C. Dulles Intl
1h 40m
TYS6:37 pmKnoxville McGhee Tyson
Jan 15
TYS1:39 pmKnoxville McGhee Tyson
1h 44m
IAD3:23 pmWashington, D.C. Dulles Intl
$87
Find similar
Allegiant Air
Dec 27
IAD4:57 pmWashington, D.C. Dulles Intl
1h 40m
TYS6:37 pmKnoxville McGhee Tyson
Jan 3
TYS2:23 pmKnoxville McGhee Tyson
1h 44m
IAD4:07 pmWashington, D.C. Dulles Intl
$96
Find similar

United Airlines flights from Pennsylvania to Knoxville

Our best United Airlines deals on Pennsylvania to Knoxville flight tickets
United Airlines
Jan 9
IAD9:00 amWashington, D.C. Dulles Intl
1h 57m
TYS10:57 amKnoxville McGhee Tyson
Jan 11
TYS9:30 amKnoxville McGhee Tyson
1h 51m
IAD11:21 amWashington, D.C. Dulles Intl
$189
Find similar
United Airlines
Dec 25
IAD10:10 pmWashington, D.C. Dulles Intl
1h 49m
TYS11:59 pmKnoxville McGhee Tyson
Dec 29
TYS5:45 amKnoxville McGhee Tyson
1h 45m
IAD7:30 amWashington, D.C. Dulles Intl
$219
Find similar
United Airlines
Jan 17
PIT7:00 amPittsburgh
6h 24m
1 stop
TYS1:24 pmKnoxville McGhee Tyson
Jan 20
TYS11:10 amKnoxville McGhee Tyson
5h 40m
1 stop
PIT4:50 pmPittsburgh
$223
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Pennsylvania to Knoxville 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 December 11, 2025.
Use the filters below to find and compare flights from Pennsylvania to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 1/15

4:13 pm-5:53 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Thu 1/22

1:39 pm-3:23 pm

Nonstop1h 44m

$83

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sat 1/3

4:57 pm-6:37 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Thu 1/15

1:39 pm-3:23 pm

Nonstop1h 44m

$87

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Mon 1/12

8:35 am-10:28 pm

1 stop13h 53m

Knoxville McGhee Tyson

Sun 1/18

1:39 pm-3:23 pm

Nonstop1h 44m

$135

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sun 1/11

4:13 pm-5:53 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Wed 1/21

3:53 pm-10:42 am

1 stop18h 49m

$136

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Thu 1/8

1:59 pm-3:56 pm

Nonstop1h 57m

Knoxville McGhee Tyson

Sun 1/11

6:00 am-7:46 am

Nonstop1h 46m

$189

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Mon 1/5

7:30 pm-11:45 pm

1 stop4h 15m

Knoxville McGhee Tyson

Sun 1/11

5:40 am-9:10 am

1 stop3h 30m

$209

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Thu 1/8

6:59 am-12:46 pm

1 stop5h 47m

Knoxville McGhee Tyson

Sun 1/11

2:17 pm-3:59 pm

Nonstop1h 42m

$223

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Sat 1/17

7:00 am-1:24 pm

1 stop6h 24m

Knoxville McGhee Tyson

Tue 1/20

11:10 am-4:50 pm

1 stop5h 40m

$223

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Sat 1/17

8:56 am-1:24 pm

1 stop4h 28m

Knoxville McGhee Tyson

Tue 1/20

9:30 am-7:09 pm

2 stops9h 39m

$228

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Sun 1/4

6:49 pm-11:26 pm

1 stop4h 37m

Knoxville McGhee Tyson

Thu 1/15

6:09 pm-10:33 pm

1 stop4h 24m

$244

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Knoxville from

How to get the cheapest flight ticket from Pennsylvania to Knoxville

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 Knoxville?

The month of July is, on average, the cheapest month to fly to Knoxville from Pennsylvania, with most prices found around $424. If you aren’t able to travel during the month of July, then book flights to Knoxville from Pennsylvania during August instead. Flights to Knoxville in August, while not as cheap as those in July, still average around $447.

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

The cheapest day to depart from Pennsylvania to Knoxville is on a Wednesday. Travelers who choose to depart for Knoxville on a Wednesday will often find tickets for as low as $402. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Pennsylvania to Knoxville for around $540.

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

In the evening is the cheapest time of day to fly from Pennsylvania to Knoxville when you can find flight prices for as low as $411. Flying to Knoxville in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the afternoon when prices are around $463.

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

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

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

You are more likely to see cheaper flights to Knoxville from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $465 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Pennsylvania for as low as $381 on momondo.

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

There are 3 cabin classes available to choose from on Pennsylvania to Knoxville McGhee Tyson 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 Pennsylvania to Knoxville flights?

You could potentially save up to 42% on your flight if you consider stops on a Pennsylvania to Knoxville flight.

Cheap Pennsylvania to Knoxville flight deals and tips

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

Best Price Found

$326

Fastest flight time

1h 30m

Direct flights

Every day

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Pennsylvania in the past 72 hours is $326. The best round-trip flight deal from Pennsylvania to Knoxville found on momondo in the last 72 hours is $444.
The fastest flight from Pennsylvania to Knoxville takes 1h 30m
Direct flights go from Pennsylvania to Knoxville every day.
There is 1 airport in Knoxville. From Pennsylvania there are direct flights to Knoxville McGhee Tyson (TYS).
Search flight deals

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

    Prices for flights from Pennsylvania to Knoxville McGhee Tyson Airport are refreshed on a daily basis.

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

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

    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 Pennsylvania to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The travel and health documents required for your trip to Knoxville McGhee Tyson Airport 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 Knoxville McGhee Tyson Airport. 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 Pennsylvania to Knoxville?

Best airlines flying from Pennsylvania to Knoxville

Compare and see reviews for airlines that fly from Pennsylvania to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $141Free CancellationRating
7.2
699 reviews
Search Allegiant Air flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
United AirlinesPriceFrom $228Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
DeltaPriceFrom $228Free CancellationRating
7.9
8,007 reviews
Search Delta flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Maryville
Crossville
Murphy
Alcoa
Oak Ridge
Lenoir City
Newport
Kodak
Dandridge
Jefferson City
Clinton
Rockford

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Pennsylvania to Knoxville. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once all potential Pennsylvania to Knoxville flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Pennsylvania to Knoxville flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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