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Cheap flights from Pittsburgh to Knoxville from $97

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 9/4. 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 (PIT-TYS)

Cheap round-trip flights

Logo
6:30 am - 5:05 pmPIT-TYS
10h 35m1 stop
Logo
4:31 pm - 11:23 pmTYS-PIT
6h 52m1 stop
$184
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Thu, Sep 25 - Sat, Sep 27
American Airlines Logo
6:00 am - 10:53 amPIT-TYS
4h 53m1 stop
American Airlines Logo
5:19 pm - 11:03 pmTYS-PIT
5h 44m1 stop
$199American Airlines
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Wed, Sep 3 - Fri, Sep 5
Logo
6:30 am - 5:05 pmPIT-TYS
10h 35m1 stop
Logo
4:31 pm - 12:58 pmTYS-PIT
20h 27m2 stops
$209
Find Deal
Thu, Sep 25 - Sat, Sep 27
Allegiant Air Logo
2:18 pm - 10:42 pmPIT-TYS
8h 24m1 stop
Allegiant Air Logo
1:22 pm - 7:08 pmTYS-PIT
5h 46m1 stop
$221Allegiant Air
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Thu, Dec 11 - Sun, Dec 14
American Airlines Logo
7:06 pm - 12:07 amPIT-TYS
5h 01m1 stop
American Airlines Logo
6:30 am - 9:38 amTYS-PIT
3h 08m1 stop
$229American Airlines
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Thu, Sep 25 - Sun, Sep 28
Delta Logo
1:43 pm - 7:03 pmPIT-TYS
5h 20m1 stop
Delta Logo
5:45 am - 10:16 amTYS-PIT
4h 31m1 stop
$239Delta
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Wed, Sep 3 - Sat, Sep 6
United Airlines Logo
6:15 am - 10:28 amPIT-TYS
4h 13m1 stop
United Airlines Logo
10:54 am - 6:55 pmTYS-PIT
8h 01m2 stops
$244United Airlines
Find Deal
Wed, Sep 3 - Sat, Sep 6
Allegiant Air Logo
6:00 am - 4:44 pmPIT-TYS
10h 44m1 stop
Allegiant Air Logo
5:44 pm - 8:16 pmTYS-PIT
26h 32m2 stops
$247Allegiant Air
Find Deal
Thu, Oct 2 - Sun, Oct 5
United Airlines Logo
10:30 am - 2:40 pmPIT-TYS
4h 10m1 stop
United Airlines Logo
7:00 am - 6:48 pmTYS-PIT
11h 48m2 stops
$264United Airlines
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Wed, Sep 3 - Fri, Sep 5
Delta Logo
7:53 pm - 11:46 pmPIT-TYS
3h 53m1 stop
Delta Logo
8:10 pm - 12:32 amTYS-PIT
4h 22m1 stop
$294Delta
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Thu, Oct 23 - Sun, Oct 26

Delta flights from Pittsburgh to Knoxville

Our best Delta deals on Pittsburgh to Knoxville flight tickets
Delta
Sep 3
PIT1:43 pmPittsburgh
5h 20m
1 stop
TYS7:03 pmKnoxville McGhee Tyson
Sep 6
TYS5:45 amKnoxville McGhee Tyson
4h 31m
1 stop
PIT10:16 amPittsburgh
$239
Find similar
Delta
Oct 23
PIT7:53 pmPittsburgh
3h 53m
1 stop
TYS11:46 pmKnoxville McGhee Tyson
Oct 26
TYS8:10 pmKnoxville McGhee Tyson
4h 22m
1 stop
PIT12:32 amPittsburgh
$294
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United Airlines flights from Pittsburgh to Knoxville

Our best United Airlines deals on Pittsburgh to Knoxville flight tickets
United Airlines
Sep 3
PIT6:15 amPittsburgh
4h 13m
1 stop
TYS10:28 amKnoxville McGhee Tyson
Sep 6
TYS10:54 amKnoxville McGhee Tyson
8h 01m
2 stops
PIT6:55 pmPittsburgh
$244
Find similar
United Airlines
Sep 3
PIT10:30 amPittsburgh
4h 10m
1 stop
TYS2:40 pmKnoxville McGhee Tyson
Sep 5
TYS7:00 amKnoxville McGhee Tyson
11h 48m
2 stops
PIT6:48 pmPittsburgh
$264
Find similar
United Airlines
Sep 3
PIT4:48 pmPittsburgh
7h 09m
2 stops
TYS11:57 pmKnoxville McGhee Tyson
Sep 5
TYS5:45 amKnoxville McGhee Tyson
7h 37m
2 stops
PIT1:22 pmPittsburgh
$269
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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 21, 2025.
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

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Thu 9/25

6:30 am-5:05 pm

1 stop10h 35m

Knoxville McGhee Tyson

Sat 9/27

4:31 pm-11:23 pm

1 stop6h 52m

$184

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Wed 9/3

6:00 am-10:53 am

1 stop4h 53m

Knoxville McGhee Tyson

Fri 9/5

5:19 pm-11:03 pm

1 stop5h 44m

$199

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Thu 9/25

6:30 am-5:05 pm

1 stop10h 35m

Knoxville McGhee Tyson

Sat 9/27

4:31 pm-12:58 pm

2 stops20h 27m

$209

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Thu 12/11

2:18 pm-10:42 pm

1 stop8h 24m

Knoxville McGhee Tyson

Sun 12/14

1:22 pm-7:08 pm

1 stop5h 46m

$221

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Thu 9/25

7:06 pm-12:07 am

1 stop5h 01m

Knoxville McGhee Tyson

Sun 9/28

6:30 am-9:38 am

1 stop3h 08m

$229

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Wed 9/3

1:43 pm-7:03 pm

1 stop5h 20m

Knoxville McGhee Tyson

Sat 9/6

5:45 am-10:16 am

1 stop4h 31m

$239

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Wed 9/3

6:15 am-10:28 am

1 stop4h 13m

Knoxville McGhee Tyson

Sat 9/6

10:54 am-6:55 pm

2 stops8h 01m

$244

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Thu 10/2

6:00 am-4:44 pm

1 stop10h 44m

Knoxville McGhee Tyson

Sun 10/5

5:44 pm-8:16 pm

2 stops26h 32m

$247

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Wed 9/3

10:30 am-2:40 pm

1 stop4h 10m

Knoxville McGhee Tyson

Fri 9/5

7:00 am-6:48 pm

2 stops11h 48m

$264

PittsburghKnoxville

PIT - TYS

PITTYS

Pittsburgh

Thu 10/23

7:53 pm-11:46 pm

1 stop3h 53m

Knoxville McGhee Tyson

Sun 10/26

8:10 pm-12:32 am

1 stop4h 22m

$294

Flights are sorted by cheapest round-trip flights 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 cheapest month to fly to Knoxville?

The month of July is, on average, the cheapest month to fly to Knoxville from Pittsburgh, with most prices found around $246. If you aren’t able to travel during the month of July, then book flights to Knoxville from Pittsburgh during February instead. Flights to Knoxville in February, while not as cheap as those in July, still average around $258.

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

The cheapest day to depart from Pittsburgh to Knoxville is on a Tuesday. Travelers who choose to depart for Knoxville on a Tuesday will often find tickets for as low as $237. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Pittsburgh to Knoxville for around $392.

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 Pittsburgh to Knoxville when you can find flight prices for as low as $268. 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 evening when prices are around $392.

How far in advance should I book a flight 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 $287 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 $152 on momondo.

How have Pittsburgh to Knoxville flight prices changed over time?

As of August 2025, prices for Pittsburgh to Knoxville flights are approximately 35% 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

Direct flights

None
There are no direct flights from Pittsburgh to Knoxville. There are no popular flight routes from Pittsburgh to Knoxville.
Search flight deals

  • 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 53m 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 $213Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $228Free CancellationRating
7.9
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $228Free CancellationRating
7.4
8,930 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
Newport
Lenoir City
Alcoa
Oak Ridge
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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