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Cheap flights from Pittsburgh to Knoxville from $88

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pittsburgh to Knoxville departing on 7/13. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Pittsburgh to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:49 pm - 10:24 pm
PIT
-
TYS
26h 35m
1 stop
Multiple Airlines Logo
12:55 pm - 5:58 pm
TYS
-
PIT
5h 03m
1 stop
$194Multiple Airlines
Thu, Aug 13 - Thu, Aug 20
Allegiant Air Logo
6:00 am - 10:00 pm
PIT
-
TYS
16h 00m
1 stop
Allegiant Air Logo
6:30 am - 2:50 pm
TYS
-
PIT
8h 20m
1 stop
$203Allegiant Air
Fri, Jul 31 - Mon, Aug 3
Multiple Airlines Logo
7:49 pm - 8:36 am
PIT
-
TYS
12h 47m
2 stops
Multiple Airlines Logo
12:55 pm - 5:58 pm
TYS
-
PIT
5h 03m
1 stop
$216Multiple Airlines
Thu, Aug 13 - Thu, Aug 20
Allegiant Air Logo
2:15 pm - 11:31 pm
PIT
-
TYS
9h 16m
1 stop
Allegiant Air Logo
12:55 pm - 5:58 pm
TYS
-
PIT
5h 03m
1 stop
$225Allegiant Air
Mon, Aug 10 - Thu, Aug 20
Multiple Airlines Logo
6:00 am - 10:00 pm
PIT
-
TYS
16h 00m
1 stop
Multiple Airlines Logo
12:53 pm - 2:22 pm
TYS
-
PIT
25h 29m
2 stops
$226Multiple Airlines
Mon, Jul 20 - Mon, Jul 27
Allegiant Air Logo
6:00 am - 3:06 pm
PIT
-
TYS
9h 06m
1 stop
Allegiant Air Logo
12:55 pm - 5:58 pm
TYS
-
PIT
5h 03m
1 stop
$233Allegiant Air
Sun, Aug 9 - Thu, Aug 20
Allegiant Air Logo
8:54 pm - 10:03 pm
PIT
-
TYS
25h 09m
1 stop
Allegiant Air Logo
12:55 pm - 5:58 pm
TYS
-
PIT
5h 03m
1 stop
$239Allegiant Air
Fri, Aug 7 - Thu, Aug 20
Multiple Airlines Logo
6:00 am - 10:00 pm
PIT
-
TYS
16h 00m
1 stop
Multiple Airlines Logo
12:53 pm - 7:12 am
TYS
-
PIT
18h 19m
2 stops
$241Multiple Airlines
Fri, Jul 31 - Mon, Aug 3
Allegiant Air Logo
6:00 am - 10:00 pm
PIT
-
TYS
16h 00m
1 stop
Allegiant Air Logo
7:30 am - 10:04 pm
TYS
-
PIT
14h 34m
1 stop
$246Allegiant Air
Mon, Jul 20 - Mon, Jul 27
Multiple Airlines Logo
6:00 am - 10:00 pm
PIT
-
TYS
16h 00m
1 stop
Multiple Airlines Logo
12:53 pm - 7:45 am
TYS
-
PIT
18h 52m
2 stops
$248Multiple Airlines
Fri, Jul 10 - Fri, Jul 17

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United Airlines flights from Pittsburgh to Knoxville

Our best United Airlines deals on Pittsburgh to Knoxville flight tickets
United Airlines
Aug 3
PIT7:59 pmPittsburgh
3h 55m
1 stop
TYS11:54 pmKnoxville McGhee Tyson
Aug 11
TYS7:00 amKnoxville McGhee Tyson
7h 11m
2 stops
PIT2:11 pmPittsburgh
$306
United Airlines
Jul 13
PIT4:10 pmPittsburgh
4h 34m
1 stop
TYS8:44 pmKnoxville McGhee Tyson
Jul 14
TYS5:45 amKnoxville McGhee Tyson
3h 55m
1 stop
PIT9:40 amPittsburgh
$316
United Airlines
Jul 13
PIT6:06 amPittsburgh
4h 36m
1 stop
TYS10:42 amKnoxville McGhee Tyson
Jul 14
TYS6:00 amKnoxville McGhee Tyson
8h 03m
2 stops
PIT2:03 pmPittsburgh
$326

American Airlines flights from Pittsburgh to Knoxville

Our best American Airlines deals on Pittsburgh to Knoxville flight tickets
American Airlines
Jul 29
PIT10:48 amPittsburgh
7h 14m
1 stop
TYS6:02 pmKnoxville McGhee Tyson
Aug 1
TYS6:00 amKnoxville McGhee Tyson
4h 14m
1 stop
PIT10:14 amPittsburgh
$265
American Airlines
Sep 17
PIT5:00 amPittsburgh
3h 30m
1 stop
TYS8:30 amKnoxville McGhee Tyson
Sep 21
TYS4:46 pmKnoxville McGhee Tyson
6h 50m
1 stop
PIT11:36 pmPittsburgh
$289
American Airlines
Jul 16
PIT5:03 amPittsburgh
5h 35m
1 stop
TYS10:38 amKnoxville McGhee Tyson
Jul 21
TYS12:15 pmKnoxville McGhee Tyson
5h 59m
1 stop
PIT6:14 pmPittsburgh
$321

momondo Fare Finder

 
Customize your flight search to find flights from Pittsburgh 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 June 27, 2026.
Use the filters below to find and compare flights from Pittsburgh to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Thu 8/13

7:49 pm-10:24 pm

1 stop26h 35m

Knoxville McGhee Tyson

Thu 8/20

12:55 pm-5:58 pm

1 stop5h 03m

$194

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Fri 7/31

6:00 am-10:00 pm

1 stop16h 00m

Knoxville McGhee Tyson

Mon 8/3

6:30 am-2:50 pm

1 stop8h 20m

$203

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Thu 8/13

7:49 pm-8:36 am

2 stops12h 47m

Knoxville McGhee Tyson

Thu 8/20

12:55 pm-5:58 pm

1 stop5h 03m

$216

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Mon 8/10

2:15 pm-11:31 pm

1 stop9h 16m

Knoxville McGhee Tyson

Thu 8/20

12:55 pm-5:58 pm

1 stop5h 03m

$225

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Mon 7/20

6:00 am-10:00 pm

1 stop16h 00m

Knoxville McGhee Tyson

Mon 7/27

12:53 pm-2:22 pm

2 stops25h 29m

$226
Quickest round-trip

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Sun 8/9

6:00 am-3:06 pm

1 stop9h 06m

Knoxville McGhee Tyson

Thu 8/20

12:55 pm-5:58 pm

1 stop5h 03m

$233

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Fri 8/7

8:54 pm-10:03 pm

1 stop25h 09m

Knoxville McGhee Tyson

Thu 8/20

12:55 pm-5:58 pm

1 stop5h 03m

$239

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Fri 7/31

6:00 am-10:00 pm

1 stop16h 00m

Knoxville McGhee Tyson

Mon 8/3

12:53 pm-7:12 am

2 stops18h 19m

$241

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Mon 7/20

6:00 am-10:00 pm

1 stop16h 00m

Knoxville McGhee Tyson

Mon 7/27

7:30 am-10:04 pm

1 stop14h 34m

$246

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Fri 7/10

6:00 am-10:00 pm

1 stop16h 00m

Knoxville McGhee Tyson

Fri 7/17

12:53 pm-7:45 am

2 stops18h 52m

$248

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 Knoxville from

How to get the cheapest flight ticket from Pittsburgh 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 typical price of a round-trip flight between Pittsburgh and Knoxville?

What is the cheapest month to fly to Knoxville?

The month of January is, on average, the cheapest month to fly to Knoxville from Pittsburgh, with most prices found around $283. If you aren’t able to travel during the month of January, then book flights to Knoxville from Pittsburgh during August instead. Flights to Knoxville in August, while not as cheap as those in January, still average around $288.

How have Pittsburgh to Knoxville flight prices changed over time?

As of June 2026, prices for Pittsburgh to Knoxville flights are approximately 72% more expensive when compared to flights at the same time last year.

When to book flights from Pittsburgh to Knoxville

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

Cheap Pittsburgh to Knoxville (PIT to TYS) flight deals and tips

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

Fastest flight time

3h 40m

Direct flights

None
The fastest flight from Pittsburgh to Knoxville takes 3h 40m
There are no direct flights from Pittsburgh to Knoxville. There are no popular flight routes from Pittsburgh to Knoxville.
Search flight deals

Frequently asked questions about flying from Pittsburgh to Knoxville

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

    The straight-line distance from Pittsburgh to Knoxville McGhee Tyson is 375.4 mi. 3h 40m is a normal flight duration for this route.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Pittsburgh Airport to Knoxville McGhee Tyson Airport.

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

    The required travel and health documents for your Knoxville McGhee Tyson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Pittsburgh to Knoxville

Compare and see reviews for airlines that fly from Pittsburgh to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,769 reviews
Search American Airlines flights
DeltaPriceFrom $257Free CancellationRating
7.8
8,453 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,893 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
Alcoa
Maryville
Murphy
Crossville
Oak Ridge
Kodak
Newport
Lenoir City
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

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

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 Pittsburgh to Knoxville for you.

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

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

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

Once all potential Pittsburgh 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 Pittsburgh to Knoxville right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Knoxville from Pittsburgh. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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