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Cheap flights from Pittsburgh to Knoxville from $96

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 11/8. 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

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Find the cheapest flights from Pittsburgh to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:38 pm - 6:14 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
22h 36m1 stop Fort Lauderdale
Multiple Airlines Logo
2:01 pm - 9:25 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
7h 24m1 stop Jacksonville
$248Multiple Airlines
Mon, Oct 19 - Thu, Oct 22
Multiple Airlines Logo
11:55 am - 11:29 amPIT  Pittsburgh-TYS Knoxville McGhee Tyson
23h 34m2 stops DuBois Jefferson County Washington, D.C. Dulles Intl
Multiple Airlines Logo
2:01 pm - 9:25 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
7h 24m1 stop Jacksonville
$266Multiple Airlines
Wed, Oct 21 - Sun, Oct 25
Multiple Airlines Logo
10:17 am - 10:05 amPIT  Pittsburgh-TYS Knoxville McGhee Tyson
23h 48m2 stops Greenville Fort Lauderdale
Multiple Airlines Logo
3:41 pm - 11:02 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
7h 21m1 stop Punta Gorda
$267Multiple Airlines
Tue, Oct 6 - Fri, Oct 9
American Airlines Logo
2:25 pm - 7:00 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
4h 35m1 stop Charlotte Douglas
American Airlines Logo
7:07 am - 1:09 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
6h 02m1 stop Washington, D.C. Reagan-National
$273American Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
7:59 pm - 11:59 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
4h 00m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
7:00 am - 2:11 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
7h 11m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
$278United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
2:11 pm - 8:53 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
6h 42m1 stop Chicago O'Hare Intl
United Airlines Logo
5:45 am - 9:36 amTYS  Knoxville McGhee Tyson-PIT Pittsburgh
3h 51m1 stop Washington, D.C. Dulles Intl
$281United Airlines
Wed, Aug 26 - Thu, Aug 27
American Airlines Logo
7:41 am - 11:44 amPIT  Pittsburgh-TYS Knoxville McGhee Tyson
4h 03m1 stop Charlotte Douglas
American Airlines Logo
11:08 am - 5:55 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
6h 47m1 stop Washington, D.C. Reagan-National
$286American Airlines
Wed, Sep 2 - Wed, Sep 9
American Airlines Logo
2:35 pm - 9:06 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
6h 31m1 stop Charlotte Douglas
American Airlines Logo
12:09 pm - 5:24 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
5h 15m1 stop Charlotte Douglas
$286American Airlines
Fri, Sep 11 - Wed, Sep 16
Delta Logo
8:00 am - 2:40 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
6h 40m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:50 am - 12:31 pmTYS  Knoxville McGhee Tyson-PIT Pittsburgh
4h 41m1 stop Atlanta Hartsfield-Jackson
$299Delta
Sat, Sep 26 - Wed, Sep 30
Delta Logo
2:30 pm - 8:03 pmPIT  Pittsburgh-TYS Knoxville McGhee Tyson
5h 33m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 10:01 amTYS  Knoxville McGhee Tyson-PIT Pittsburgh
4h 01m1 stop Atlanta Hartsfield-Jackson
$308Delta
Fri, Sep 4 - Sun, Sep 6

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Allegiant Air flights from Pittsburgh to Knoxville

Our best Allegiant Air deals on Pittsburgh to Knoxville flight tickets
Allegiant Air
Aug 14
PIT7:30 amPittsburgh
26h 50m
1 stop
TYS10:20 amKnoxville McGhee Tyson
Aug 19
TYS10:54 amKnoxville McGhee Tyson
25h 25m
1 stop
PIT12:19 pmPittsburgh
$340
Allegiant Air
Aug 14
PIT7:30 amPittsburgh
26h 50m
1 stop
TYS10:20 amKnoxville McGhee Tyson
Aug 16
TYS2:12 pmKnoxville McGhee Tyson
18h 58m
1 stop
PIT9:10 amPittsburgh
$429
Allegiant Air
Aug 14
PIT7:30 amPittsburgh
10h 55m
1 stop
TYS6:25 pmKnoxville McGhee Tyson
Aug 16
TYS2:12 pmKnoxville McGhee Tyson
18h 58m
1 stop
PIT9:10 amPittsburgh
$430

Delta flights from Pittsburgh to Knoxville

Our best Delta deals on Pittsburgh to Knoxville flight tickets
Delta
Aug 19
PIT5:50 amPittsburgh
5h 21m
1 stop
TYS11:11 amKnoxville McGhee Tyson
Aug 22
TYS5:00 pmKnoxville McGhee Tyson
6h 34m
1 stop
PIT11:34 pmPittsburgh
$273
Delta
Sep 4
PIT2:30 pmPittsburgh
5h 33m
1 stop
TYS8:03 pmKnoxville McGhee Tyson
Sep 6
TYS6:00 amKnoxville McGhee Tyson
4h 01m
1 stop
PIT10:01 amPittsburgh
$308
Delta
Oct 9
PIT1:34 pmPittsburgh
3h 53m
1 stop
TYS5:27 pmKnoxville McGhee Tyson
Oct 12
TYS6:23 pmKnoxville McGhee Tyson
6h 23m
1 stop
PIT12:46 amPittsburgh
$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 August 10, 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 Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Mon 10/19

7:38 pm-6:14 pm

1 stop22h 36m

Knoxville McGhee Tyson

Thu 10/22

2:01 pm-9:25 pm

1 stop7h 24m

$248

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Wed 10/21

11:55 am-11:29 am

2 stops23h 34m

Knoxville McGhee Tyson

Sun 10/25

2:01 pm-9:25 pm

1 stop7h 24m

$266

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Tue 10/6

10:17 am-10:05 am

2 stops23h 48m

Knoxville McGhee Tyson

Fri 10/9

3:41 pm-11:02 pm

1 stop7h 21m

$267

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Tue 9/1

2:25 pm-7:00 pm

1 stop4h 35m

Knoxville McGhee Tyson

Sat 9/5

7:07 am-1:09 pm

1 stop6h 02m

$273

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Tue 9/1

7:59 pm-11:59 pm

1 stop4h 00m

Knoxville McGhee Tyson

Sat 9/5

7:00 am-2:11 pm

2 stops7h 11m

$278

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Wed 8/26

2:11 pm-8:53 pm

1 stop6h 42m

Knoxville McGhee Tyson

Thu 8/27

5:45 am-9:36 am

1 stop3h 51m

$281

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Wed 9/2

7:41 am-11:44 am

1 stop4h 03m

Knoxville McGhee Tyson

Wed 9/9

11:08 am-5:55 pm

1 stop6h 47m

$286

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Fri 9/11

2:35 pm-9:06 pm

1 stop6h 31m

Knoxville McGhee Tyson

Wed 9/16

12:09 pm-5:24 pm

1 stop5h 15m

$286

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Sat 9/26

8:00 am-2:40 pm

1 stop6h 40m

Knoxville McGhee Tyson

Wed 9/30

7:50 am-12:31 pm

1 stop4h 41m

$299
Quickest round-trip

PittsburghKnoxville

PIT Pittsburgh - TYS Knoxville McGhee Tyson

PITTYS

Pittsburgh

Fri 9/4

2:30 pm-8:03 pm

1 stop5h 33m

Knoxville McGhee Tyson

Sun 9/6

6:00 am-10:01 am

1 stop4h 01m

$308

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $276 to $445.
The lowest price recently found on this route was $248.

What is the cheapest month to fly to Knoxville?

The month of September is, on average, the cheapest month to fly to Knoxville from Pittsburgh, with most prices found around $276. If you aren’t able to travel during the month of September, then book flights to Knoxville from Pittsburgh during January instead. Flights to Knoxville in January, while not as cheap as those in September, still average around $283.

How have Pittsburgh to Knoxville flight prices changed over time?

As of August 2026, prices for Pittsburgh to Knoxville flights are approximately 39% 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 30m

Direct flights

None
The fastest flight from Pittsburgh to Knoxville takes 3h 30m
There are no direct flights from Pittsburgh to Knoxville. There are no popular flight routes from Pittsburgh to Knoxville.
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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 30m 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
11,897 reviews
Search American Airlines flights
DeltaPriceFrom $257Free CancellationRating
7.8
8,497 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
10,095 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
Crossville
Murphy
Oak Ridge
Kodak
Newport
Dandridge
Lenoir City
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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