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Cheap flights from Pittsburgh to Knoxville from $120

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.
Allegiant Air Logo
3:09 pm - 8:31 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
5h 22m1 stop Jacksonville
Allegiant Air Logo
11:00 am - 8:11 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
9h 11m1 stop Jacksonville
$219Allegiant Air
Sun, Dec 6 - Sun, Dec 13
Multiple Airlines Logo
7:59 pm - 1:07 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
17h 08m1 stop Fort Lauderdale
Multiple Airlines Logo
11:00 am - 9:25 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
10h 25m1 stop Jacksonville
$270Multiple Airlines
Mon, Dec 7 - Sun, Dec 13
Multiple Airlines Logo
6:45 am - 11:30 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
16h 45m1 stop Jacksonville
Multiple Airlines Logo
6:00 am - 5:07 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
11h 07m2 stops Washington, D.C. Dulles Intl DuBois Jefferson County
$271Multiple Airlines
Sun, Oct 18 - Sun, Oct 25
American Airlines Logo
7:16 pm - 10:48 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
3h 32m1 stop Charlotte Douglas
American Airlines Logo
7:14 pm - 11:00 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
3h 46m1 stop Charlotte Douglas
$273American Airlines
Wed, Dec 9 - Tue, Dec 15
American Airlines Logo
1:05 pm - 5:35 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
4h 30m1 stop Philadelphia
American Airlines Logo
11:35 am - 4:55 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
5h 20m1 stop Philadelphia
$273American Airlines
Sat, Oct 17 - Sat, Oct 24
Delta Logo
3:14 pm - 9:56 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
6h 42m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:55 pm - 12:41 amTYS  Knoxville McGhee Tyson-PIT Pittsburgh
5h 46m1 stop Atlanta Hartsfield-Jackson
$273Delta
Thu, Dec 17 - Mon, Dec 21
Delta Logo
3:14 pm - 6:49 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
3h 35m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:32 pm - 4:04 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
3h 32m1 stop Atlanta Hartsfield-Jackson
$273Delta
Mon, Nov 23 - Tue, Dec 1
United Airlines Logo
5:11 am - 9:45 amPIT  Pittsburgh-TYS Knoxville McGhee Tyson
4h 34m1 stop Chicago O'Hare Intl
United Airlines Logo
4:16 pm - 9:36 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
5h 20m1 stop Newark
$273United Airlines
Sat, Oct 17 - Sat, Oct 24
United Airlines Logo
2:07 pm - 8:54 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
6h 47m1 stop Chicago O'Hare Intl
United Airlines Logo
4:30 pm - 10:09 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
5h 39m1 stop Newark
$273United Airlines
Sat, Nov 14 - Tue, Nov 17
American Airlines Logo
7:16 pm - 10:48 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
3h 32m1 stop Charlotte Douglas
American Airlines Logo
6:01 am - 10:08 amTYS  Knoxville McGhee Tyson-PIT Pittsburgh
4h 07m1 stop Charlotte Douglas
$273American Airlines
Wed, Nov 4 - Wed, Nov 11

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Allegiant Air flights from Pittsburgh to Knoxville

Our best Allegiant Air deals on Pittsburgh to Knoxville flight tickets
Allegiant Air
Dec 6
PIT3:09 pmPittsburgh
5h 22m
1 stop
TYS8:31 pmKnoxville McGhee Tyson
Dec 13
TYS11:00 amKnoxville McGhee Tyson
9h 11m
1 stop
PIT8:11 pmPittsburgh
$219
Allegiant Air
Oct 19
PIT7:38 pmPittsburgh
22h 36m
1 stop
TYS6:14 pmKnoxville McGhee Tyson
Oct 23
TYS7:00 amKnoxville McGhee Tyson
14h 25m
1 stop
PIT9:25 pmPittsburgh
$277
Allegiant Air
Oct 5
PIT4:32 pmPittsburgh
5h 48m
1 stop
TYS10:20 pmKnoxville McGhee Tyson
Oct 9
TYS3:41 pmKnoxville McGhee Tyson
7h 21m
1 stop
PIT11:02 pmPittsburgh
$285

Southwest flights from Pittsburgh to Knoxville

Our best Southwest deals on Pittsburgh to Knoxville flight tickets
Southwest
Nov 4
PIT4:00 pmPittsburgh
4h 50m
1 stop
TYS8:50 pmKnoxville McGhee Tyson
Nov 11
TYS7:05 amKnoxville McGhee Tyson
11h 45m
2 stops
PIT6:50 pmPittsburgh
$284
Southwest
Oct 29
PIT12:25 pmPittsburgh
9h 10m
2 stops
TYS9:35 pmKnoxville McGhee Tyson
Oct 31
TYS6:40 amKnoxville McGhee Tyson
7h 10m
2 stops
PIT1:50 pmPittsburgh
$320
Southwest
Nov 12
PIT5:50 pmPittsburgh
3h 55m
1 stop
TYS9:45 pmKnoxville McGhee Tyson
Nov 16
TYS7:05 amKnoxville McGhee Tyson
11h 45m
2 stops
PIT6:50 pmPittsburgh
$321

momondo Fare Finder

 
Use the filters below to find and compare flights from Pittsburgh to Knoxville that are best for you.

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Price

Cheapest round-trip

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Sun 12/6

3:09 pm-8:31 pm

1 stop5h 22m

Knoxville McGhee Tyson

Sun 12/13

11:00 am-8:11 pm

1 stop9h 11m

$219

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Mon 12/7

7:59 pm-1:07 pm

1 stop17h 08m

Knoxville McGhee Tyson

Sun 12/13

11:00 am-9:25 pm

1 stop10h 25m

$270

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Sun 10/18

6:45 am-11:30 pm

1 stop16h 45m

Knoxville McGhee Tyson

Sun 10/25

6:00 am-5:07 pm

2 stops11h 07m

$271

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Wed 12/9

7:16 pm-10:48 pm

1 stop3h 32m

Knoxville McGhee Tyson

Tue 12/15

7:14 pm-11:00 pm

1 stop3h 46m

$273

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Sat 10/17

1:05 pm-5:35 pm

1 stop4h 30m

Knoxville McGhee Tyson

Sat 10/24

11:35 am-4:55 pm

1 stop5h 20m

$273

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Thu 12/17

3:14 pm-9:56 pm

1 stop6h 42m

Knoxville McGhee Tyson

Mon 12/21

6:55 pm-12:41 am

1 stop5h 46m

$273
Quickest round-trip

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Mon 11/23

3:14 pm-6:49 pm

1 stop3h 35m

Knoxville McGhee Tyson

Tue 12/1

12:32 pm-4:04 pm

1 stop3h 32m

$273

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Sat 10/17

5:11 am-9:45 am

1 stop4h 34m

Knoxville McGhee Tyson

Sat 10/24

4:16 pm-9:36 pm

1 stop5h 20m

$273

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Sat 11/14

2:07 pm-8:54 pm

1 stop6h 47m

Knoxville McGhee Tyson

Tue 11/17

4:30 pm-10:09 pm

1 stop5h 39m

$273

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Wed 11/4

7:16 pm-10:48 pm

1 stop3h 32m

Knoxville McGhee Tyson

Wed 11/11

6:01 am-10:08 am

1 stop4h 07m

$273

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?

Prices are currently low for flights on this route.

Typical prices usually range from $287 to $367.
The lowest price recently found on this route was $219.

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 September instead. Flights to Knoxville in September, while not as cheap as those in January, still average around $310.

How have Pittsburgh to Knoxville flight prices changed over time?

As of September 2026, prices for Pittsburgh to Knoxville flights are approximately 201% 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

Best Price Found

$120

Fastest flight time

4h 00m

Direct flights

None
The best one-way flight to Knoxville from Pittsburgh in the past 72 hours is $120. The best round-trip flight deal from Pittsburgh to Knoxville found on momondo in the last 72 hours is $219.
The fastest flight from Pittsburgh to Knoxville takes 4h 00m
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. 4h 00m 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
DeltaPriceFrom $257Free CancellationRating
7.8
8,591 reviews
Search Delta flights
American AirlinesPriceFrom $272Free CancellationRating
7.0
12,076 reviews
Search American Airlines flights
United AirlinesPriceFrom $291Free CancellationRating
7.4
10,226 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
Alcoa
Corbin
Maryville
Crossville
Murphy
Oak Ridge
Kodak
Newport
Dandridge
Lenoir City
Clinton
Rockford
Jefferson City

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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