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Cheap flights from Pennsylvania to Knoxville from $51

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 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Pennsylvania to Knoxville

Cheap round-trip flights

Allegiant Air Logo
8:46 pm - 10:26 pmIAD-TYS
1h 40mnonstop
Allegiant Air Logo
5:22 pm - 7:06 pmTYS-IAD
1h 44mnonstop
$91Allegiant Air
Find Deal
Fri, Nov 7 - Mon, Nov 10
Allegiant Air Logo
9:36 pm - 11:16 pmIAD-TYS
1h 40mnonstop
Allegiant Air Logo
5:59 pm - 7:43 pmTYS-IAD
1h 44mnonstop
$98Allegiant Air
Find Deal
Mon, Oct 20 - Fri, Oct 24
Multiple Airlines Logo
9:36 pm - 11:16 pmIAD-TYS
1h 40mnonstop
Multiple Airlines Logo
8:45 am - 9:38 pmTYS-IAD
12h 53m1 stop
$159Multiple Airlines
Find Deal
Mon, Oct 20 - Mon, Oct 27
Multiple Airlines Logo
8:33 pm - 10:13 pmIAD-TYS
1h 40mnonstop
Multiple Airlines Logo
8:45 am - 9:38 pmTYS-IAD
12h 53m1 stop
$165Multiple Airlines
Find Deal
Fri, Oct 24 - Mon, Oct 27
American Airlines Logo
1:59 pm - 3:48 pmDCA-TYS
1h 49mnonstop
American Airlines Logo
6:06 am - 7:49 amTYS-DCA
1h 43mnonstop
$189American Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 23
American Airlines Logo
7:58 pm - 9:41 pmDCA-TYS
1h 43mnonstop
American Airlines Logo
10:43 am - 12:14 pmTYS-DCA
1h 31mnonstop
$199American Airlines
Find Deal
Fri, Oct 3 - Thu, Oct 9
Delta Logo
6:05 am - 11:04 amIAD-TYS
4h 59m1 stop
Delta Logo
2:41 pm - 7:24 pmTYS-IAD
4h 43m1 stop
$209Delta
Find Deal
Wed, Oct 29 - Sat, Nov 1
Delta Logo
6:59 am - 10:28 amDCA-TYS
3h 29m1 stop
Delta Logo
8:10 pm - 11:41 pmTYS-DCA
3h 31m1 stop
$209Delta
Find Deal
Sat, Oct 25 - Mon, Oct 27
United Airlines Logo
12:59 pm - 2:45 pmIAD-TYS
1h 46mnonstop
United Airlines Logo
7:26 pm - 9:10 pmTYS-IAD
1h 44mnonstop
$210United Airlines
Find Deal
Wed, Oct 15 - Sat, Oct 18
United Airlines Logo
8:45 am - 10:29 amIAD-TYS
1h 44mnonstop
United Airlines Logo
5:45 am - 7:28 amTYS-IAD
1h 43mnonstop
$212United Airlines
Find Deal
Sat, Oct 25 - Mon, Oct 27

Allegiant Air flights from Pennsylvania to Knoxville

Our best Allegiant Air deals on Pennsylvania to Knoxville flight tickets
Allegiant Air
Nov 7
IAD8:46 pmWashington, D.C. Dulles Intl
1h 40m
TYS10:26 pmKnoxville McGhee Tyson
Nov 10
TYS5:22 pmKnoxville McGhee Tyson
1h 44m
IAD7:06 pmWashington, D.C. Dulles Intl
$91
Find similar
Allegiant Air
Oct 20
IAD9:36 pmWashington, D.C. Dulles Intl
1h 40m
TYS11:16 pmKnoxville McGhee Tyson
Oct 24
TYS5:59 pmKnoxville McGhee Tyson
1h 44m
IAD7:43 pmWashington, D.C. Dulles Intl
$98
Find similar
Allegiant Air
Nov 20
IAD8:23 pmWashington, D.C. Dulles Intl
1h 40m
TYS10:03 pmKnoxville McGhee Tyson
Nov 23
TYS5:49 pmKnoxville McGhee Tyson
1h 44m
IAD7:33 pmWashington, D.C. Dulles Intl
$99
Find similar

United Airlines flights from Pennsylvania to Knoxville

Our best United Airlines deals on Pennsylvania to Knoxville flight tickets
United Airlines
Oct 15
IAD12:59 pmWashington, D.C. Dulles Intl
1h 46m
TYS2:45 pmKnoxville McGhee Tyson
Oct 18
TYS7:26 pmKnoxville McGhee Tyson
1h 44m
IAD9:10 pmWashington, D.C. Dulles Intl
$210
Find similar
United Airlines
Oct 25
IAD8:45 amWashington, D.C. Dulles Intl
1h 44m
TYS10:29 amKnoxville McGhee Tyson
Oct 27
TYS5:45 amKnoxville McGhee Tyson
1h 43m
IAD7:28 amWashington, D.C. Dulles Intl
$212
Find similar
United Airlines
Oct 18
IAD7:24 pmWashington, D.C. Dulles Intl
1h 47m
TYS9:11 pmKnoxville McGhee Tyson
Oct 25
TYS7:26 pmKnoxville McGhee Tyson
1h 44m
IAD9:10 pmWashington, D.C. Dulles Intl
$239
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 September 22, 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

Fri 11/7

8:46 pm-10:26 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Mon 11/10

5:22 pm-7:06 pm

Nonstop1h 44m

$91

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Mon 10/20

9:36 pm-11:16 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Fri 10/24

5:59 pm-7:43 pm

Nonstop1h 44m

$98

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Mon 10/20

9:36 pm-11:16 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Mon 10/27

8:45 am-9:38 pm

1 stop12h 53m

$159

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 10/24

8:33 pm-10:13 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Mon 10/27

8:45 am-9:38 pm

1 stop12h 53m

$165

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Thu 11/20

1:59 pm-3:48 pm

Nonstop1h 49m

Knoxville McGhee Tyson

Sun 11/23

6:06 am-7:49 am

Nonstop1h 43m

$189

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Fri 10/3

7:58 pm-9:41 pm

Nonstop1h 43m

Knoxville McGhee Tyson

Thu 10/9

10:43 am-12:14 pm

Nonstop1h 31m

$199

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Wed 10/29

6:05 am-11:04 am

1 stop4h 59m

Knoxville McGhee Tyson

Sat 11/1

2:41 pm-7:24 pm

1 stop4h 43m

$209

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Sat 10/25

6:59 am-10:28 am

1 stop3h 29m

Knoxville McGhee Tyson

Mon 10/27

8:10 pm-11:41 pm

1 stop3h 31m

$209

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Wed 10/15

12:59 pm-2:45 pm

Nonstop1h 46m

Knoxville McGhee Tyson

Sat 10/18

7:26 pm-9:10 pm

Nonstop1h 44m

$210

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sat 10/25

8:45 am-10:29 am

Nonstop1h 44m

Knoxville McGhee Tyson

Mon 10/27

5:45 am-7:28 am

Nonstop1h 43m

$212

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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 $425. If you aren’t able to travel during the month of July, then book flights to Knoxville from Pennsylvania during December instead. Flights to Knoxville in December, while not as cheap as those in July, still average around $431.

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

The cheapest day to depart from Pennsylvania to Knoxville is on a Saturday. Travelers who choose to depart for Knoxville on a Saturday will often find tickets for as low as $402. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Pennsylvania to Knoxville for around $529.

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

At noon is the cheapest time of day to fly from Pennsylvania to Knoxville when you can find flight prices for as low as $437. Flying to Knoxville at noon 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 $458.

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 $456 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 $389 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 68% 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

$423

Fastest flight time

1h 40m

Direct flights

Every day

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Pennsylvania in the past 72 hours is $423. The best round-trip flight deal from Pennsylvania to Knoxville found on momondo in the last 72 hours is $449.
The fastest flight from Pennsylvania to Knoxville takes 1h 40m
Direct flights go from Pennsylvania to Knoxville every day.
There is 1 airport near Knoxville: 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
DeltaPriceFrom $198Free CancellationRating
7.9
7,971 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $228Free CancellationRating
7.4
8,922 reviews
Search United Airlines 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
Crossville
Maryville
Murphy
Alcoa
Oak Ridge
Lenoir City
Newport
Kodak
Dandridge
Clinton
Jefferson City
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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