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Cheap flights from Pittsburgh to Knoxville from $85

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 5/29. 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 Pittsburgh to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
6:00 am - 10:01 pm
PIT
-
TYS
16h 01m
1 stop
Allegiant Air Logo
7:25 am - 2:52 pm
TYS
-
PIT
7h 27m
1 stop
$200Allegiant Air
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
6:00 am - 10:01 pm
PIT
-
TYS
16h 01m
1 stop
Multiple Airlines Logo
12:55 pm - 9:28 pm
TYS
-
PIT
8h 33m
2 stops
$217Multiple Airlines
Fri, May 29 - Mon, Jun 1
Allegiant Air Logo
6:00 am - 10:01 pm
PIT
-
TYS
16h 01m
1 stop
Allegiant Air Logo
6:00 am - 2:54 pm
TYS
-
PIT
8h 54m
1 stop
$227Allegiant Air
Fri, May 29 - Mon, Jun 1
Multiple Airlines Logo
10:26 am - 4:48 pm
PIT
-
TYS
6h 22m
1 stop
Multiple Airlines Logo
1:19 pm - 6:14 pm
TYS
-
PIT
4h 55m
1 stop
$235Multiple Airlines
Thu, Sep 10 - Sun, Sep 13
Multiple Airlines Logo
6:00 am - 10:01 pm
PIT
-
TYS
16h 01m
1 stop
Multiple Airlines Logo
12:49 pm - 7:45 am
TYS
-
PIT
18h 56m
2 stops
$236Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Allegiant Air Logo
6:00 am - 10:01 pm
PIT
-
TYS
16h 01m
1 stop
Allegiant Air Logo
6:00 am - 2:54 pm
TYS
-
PIT
8h 54m
1 stop
$238Allegiant Air
Fri, May 29 - Mon, Jun 1
Multiple Airlines Logo
7:40 am - 4:40 pm
PIT
-
TYS
9h 00m
2 stops
Multiple Airlines Logo
2:02 pm - 9:21 am
TYS
-
PIT
19h 19m
1 stop
$242Multiple Airlines
Fri, May 29 - Sun, May 31
Allegiant Air Logo
6:00 am - 10:01 pm
PIT
-
TYS
16h 01m
1 stop
Allegiant Air Logo
2:19 pm - 11:14 am
TYS
-
PIT
20h 55m
1 stop
$245Allegiant Air
Mon, Jun 1 - Wed, Jun 10
Multiple Airlines Logo
6:00 am - 9:50 pm
PIT
-
TYS
15h 50m
1 stop
Multiple Airlines Logo
12:49 pm - 7:45 am
TYS
-
PIT
18h 56m
2 stops
$246Multiple Airlines
Fri, Jun 12 - Mon, Jun 15
Allegiant Air Logo
6:00 am - 10:00 pm
PIT
-
TYS
16h 00m
1 stop
Allegiant Air Logo
6:00 pm - 11:19 am
TYS
-
PIT
17h 19m
1 stop
$253Allegiant Air
Mon, Jul 27 - Sat, Aug 8

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Delta flights from Pittsburgh to Knoxville

Our best Delta deals on Pittsburgh to Knoxville flight tickets
Delta
May 28
PIT5:40 amPittsburgh
3h 54m
1 stop
TYS9:34 amKnoxville McGhee Tyson
May 30
TYS5:40 amKnoxville McGhee Tyson
6h 25m
1 stop
PIT12:05 pmPittsburgh
$285
Delta
May 29
PIT5:40 amPittsburgh
5h 29m
1 stop
TYS11:09 amKnoxville McGhee Tyson
Jun 1
TYS3:30 pmKnoxville McGhee Tyson
3h 25m
1 stop
PIT6:55 pmPittsburgh
$311
Delta
May 9
PIT5:40 amPittsburgh
4h 17m
1 stop
TYS9:57 amKnoxville McGhee Tyson
May 15
TYS1:59 pmKnoxville McGhee Tyson
4h 56m
1 stop
PIT6:55 pmPittsburgh
$627

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 09m
1 stop
TYS5:57 pmKnoxville McGhee Tyson
Aug 1
TYS10:00 amKnoxville McGhee Tyson
4h 48m
1 stop
PIT2:48 pmPittsburgh
$309
American Airlines
May 14
PIT7:39 pmPittsburgh
4h 16m
1 stop
TYS11:55 pmKnoxville McGhee Tyson
May 19
TYS3:58 pmKnoxville McGhee Tyson
4h 16m
1 stop
PIT8:14 pmPittsburgh
$613

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 May 7, 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

Mon 6/1

6:00 am-10:01 pm

1 stop16h 01m

Knoxville McGhee Tyson

Mon 6/8

7:25 am-2:52 pm

1 stop7h 27m

$200

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Fri 5/29

6:00 am-10:01 pm

1 stop16h 01m

Knoxville McGhee Tyson

Mon 6/1

12:55 pm-9:28 pm

2 stops8h 33m

$217

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Fri 5/29

6:00 am-10:01 pm

1 stop16h 01m

Knoxville McGhee Tyson

Mon 6/1

6:00 am-2:54 pm

1 stop8h 54m

$227
Quickest round-trip

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Thu 9/10

10:26 am-4:48 pm

1 stop6h 22m

Knoxville McGhee Tyson

Sun 9/13

1:19 pm-6:14 pm

1 stop4h 55m

$235

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Mon 6/1

6:00 am-10:01 pm

1 stop16h 01m

Knoxville McGhee Tyson

Mon 6/8

12:49 pm-7:45 am

2 stops18h 56m

$236

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Fri 5/29

6:00 am-10:01 pm

1 stop16h 01m

Knoxville McGhee Tyson

Mon 6/1

6:00 am-2:54 pm

1 stop8h 54m

$238

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Fri 5/29

7:40 am-4:40 pm

2 stops9h 00m

Knoxville McGhee Tyson

Sun 5/31

2:02 pm-9:21 am

1 stop19h 19m

$242

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Mon 6/1

6:00 am-10:01 pm

1 stop16h 01m

Knoxville McGhee Tyson

Wed 6/10

2:19 pm-11:14 am

1 stop20h 55m

$245

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Fri 6/12

6:00 am-9:50 pm

1 stop15h 50m

Knoxville McGhee Tyson

Mon 6/15

12:49 pm-7:45 am

2 stops18h 56m

$246

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Mon 7/27

6:00 am-10:00 pm

1 stop16h 00m

Knoxville McGhee Tyson

Sat 8/8

6:00 pm-11:19 am

1 stop17h 19m

$253

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 August is, on average, the cheapest month to fly to Knoxville from Pittsburgh, with most prices found around $238. If you aren’t able to travel during the month of August, then book flights to Knoxville from Pittsburgh during September instead. Flights to Knoxville in September, while not as cheap as those in August, still average around $273.

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

You are more likely to see cheaper flights to Knoxville from Pittsburgh when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $319 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Pittsburgh for as low as $236 on momondo.

How have Pittsburgh to Knoxville flight prices changed over time?

As of May 2026, prices for Pittsburgh to Knoxville flights are approximately 5% cheaper 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

5h 26m

Direct flights

None
The fastest flight from Pittsburgh to Knoxville takes 5h 26m
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. 5h 26m 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
United AirlinesPriceFrom $228Free CancellationRating
7.4
9,690 reviews
Search United Airlines flights
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,669 reviews
Search American Airlines flights
DeltaPriceFrom $228Free CancellationRating
7.9
8,459 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
Alcoa
Crossville
Maryville
Murphy
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 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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