$137+ Cheap flights from Knoxville to Pittsburgh (TYS - PIT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PIT
Oct 22 — Oct 291
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Knoxville to Pittsburgh with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Knoxville to Pittsburgh
Cheapest
Best
Last-minute
One-way
Cheapest flights from Knoxville to PittsburghExplore the most affordable flight options available from Knoxville to Pittsburgh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
Explore the most affordable flight options available from Knoxville to Pittsburgh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:45 am -
2 stops9h 07m
Thu 10/2912:00 pm -
1 stop9h 56m
Deal found 9/22![Multiple Airlines logo]()
$268
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:05 pm -
1 stop5h 30m
Thu 10/296:00 am -
1 stop4h 33m
Deal found 9/22![American Airlines logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:37 pm -
2 stops27h 30m
Mon 10/54:32 pm -
1 stop5h 48m
Deal found 9/21![Multiple Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:41 pm -
1 stop7h 21m
Sun 10/116:45 am -
1 stop16h 45m
Deal found 9/18![Allegiant Air logo]()
$308
This Southwest deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:25 pm -
1 stop3h 35m
Thu 10/2912:25 pm -
2 stops9h 10m
Deal found 9/22![Southwest logo]()
$315
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:40 am -
1 stop4h 26m
Sun 10/255:50 am -
1 stop5h 04m
Deal found 9/18![Delta logo]()
$331
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/189:30 am -
1 stop4h 52m
Tue 12/297:57 pm -
1 stop4h 18m
Deal found 9/22![United Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/184:59 pm -
1 stop21h 05m
Sun 10/2512:00 pm -
1 stop5h 33m
Deal found 9/18![Allegiant Air logo]()
$357
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:43 am -
1 stop6h 12m
Sat 10/3110:35 am -
2 stops10h 19m
Deal found 9/21![United Airlines logo]()
$368
This American Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:20 am -
1 stop4h 06m
Tue 10/138:13 am -
1 stop6h 10m
Deal found 9/21![American Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:40 pm -
1 stop6h 19m
Mon 11/28:00 pm -
1 stop3h 59m
Deal found 9/17![United Airlines logo]()
$372
Best flights from Knoxville to PittsburghDiscover carefully curated flight deals from Knoxville to Pittsburgh that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
Discover carefully curated flight deals from Knoxville to Pittsburgh that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:26 am -
1 stop4h 09m
Sat 10/315:50 am -
1 stop5h 03m
Deal found 9/21![Delta logo]()
$273
This Southwest deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:25 pm -
2 stops14h 40m
Thu 10/2912:25 pm -
2 stops9h 10m
Deal found 9/22![Southwest logo]()
$326
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:40 pm -
1 stop6h 19m
Mon 11/28:00 pm -
1 stop3h 59m
Deal found 9/17![United Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:01 pm -
1 stop6h 29m
Sun 12/66:00 am -
1 stop5h 27m
Deal found 9/19![Delta logo]()
$331
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:45 am -
2 stops7h 29m
Sat 10/317:00 am -
2 stops9h 59m
Deal found 9/21![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:35 am -
1 stop5h 39m
Sun 10/187:45 am -
1 stop5h 55m
Deal found 9/18![Delta logo]()
$370
Last-minute flights from Knoxville to PittsburghDiscover last-minute flight deals from Knoxville to Pittsburgh. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Pittsburgh. Data last updated September 22, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:37 pm -
2 stops27h 30m
Mon 10/54:32 pm -
1 stop5h 48m
Deal found 9/21![Multiple Airlines logo]()
$291
This American Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals ”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:20 am -
1 stop4h 06m
Tue 10/138:13 am -
1 stop6h 10m
Deal found 9/21![American Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:41 pm -
1 stop7h 21m
Sun 10/116:45 am -
1 stop16h 45m
Deal found 9/18![Allegiant Air logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/184:59 pm -
1 stop21h 05m
Sun 10/2512:00 pm -
1 stop5h 33m
Deal found 9/18![Allegiant Air logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:45 am -
2 stops9h 07m
Thu 10/2912:00 pm -
1 stop9h 56m
Deal found 9/22![Multiple Airlines logo]()
$268
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:05 pm -
1 stop5h 30m
Thu 10/296:00 am -
1 stop4h 33m
Deal found 9/22![American Airlines logo]()
$273
This Southwest deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:25 pm -
1 stop3h 35m
Thu 10/2912:25 pm -
2 stops9h 10m
Deal found 9/22![Southwest logo]()
$315
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:40 am -
1 stop4h 26m
Sun 10/255:50 am -
1 stop5h 04m
Deal found 9/18![Delta logo]()
$331
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:43 am -
1 stop6h 12m
Sat 10/3110:35 am -
2 stops10h 19m
Deal found 9/21![United Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:40 pm -
1 stop6h 19m
Mon 11/28:00 pm -
1 stop3h 59m
Deal found 9/17![United Airlines logo]()
$372
One-way flights from Knoxville to PittsburghSearch for one-way flight options from Knoxville to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
Search for one-way flight options from Knoxville to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:06 pm -
1 stop3h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Delta logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:45 am -
2 stops30h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$138
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:45 am -
2 stops7h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![United Airlines logo]()
$142
This KAYAK deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:40 am -
1 stop4h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Delta logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:37 pm -
2 stops24h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$162
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:42 am -
2 stops11h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$187
This American Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:58 pm -
1 stop4h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![American Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:52 pm -
3 stops26h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:00 am -
3 stops34h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$201
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/65:40 am -
1 stop4h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Delta logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/184:59 pm -
1 stop21h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Allegiant Air logo]()
$238
Find flight deals from Knoxville to Pittsburgh
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Pittsburgh (PIT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $268 (Kiwi.com) |
One-way from | $137 (Delta) |
Popular in | February |
Cheapest in | November |
Average price | $406 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Pittsburgh 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, Cheapflights users made 7,457,451 searches. Data last updated September 22, 2026.
Use the filters below to find and compare flights from Knoxville to Pittsburgh that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvillePittsburgh
TYS Knoxville McGhee Tyson - PIT Pittsburgh
TYSPIT
Knoxville McGhee Tyson
Thu 10/22
10:42 am-4:57 pm
1 stop6h 15m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$137
KnoxvillePittsburgh
TYS Knoxville McGhee Tyson - PIT Pittsburgh
TYSPIT
Knoxville McGhee Tyson
Tue 10/20
5:18 pm-11:59 pm
1 stop6h 41m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$137
Quickest round-trip
KnoxvillePittsburgh
TYS Knoxville McGhee Tyson - PIT Pittsburgh
TYSPIT
Knoxville McGhee Tyson
Wed 12/2
5:15 pm-9:05 pm
1 stop3h 50m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$137
KnoxvillePittsburgh
TYS Knoxville McGhee Tyson - PIT Pittsburgh
TYSPIT
Knoxville McGhee Tyson
Wed 10/14
12:06 pm-3:58 pm
1 stop3h 52m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$137
KnoxvillePittsburgh
TYS Knoxville McGhee Tyson - PIT Pittsburgh
TYSPIT
Knoxville McGhee Tyson
Wed 10/14
9:45 am-5:20 pm
2 stops7h 35m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$142
KnoxvillePittsburgh
TYS Knoxville McGhee Tyson - PIT Pittsburgh
TYSPIT
Knoxville McGhee Tyson
Sat 10/31
5:40 am-10:37 am
1 stop4h 57m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$145
KnoxvillePittsburgh
TYS Knoxville McGhee Tyson - PIT Pittsburgh
TYSPIT
Knoxville McGhee Tyson
Tue 10/20
10:42 am-10:38 pm
2 stops11h 56m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$187
KnoxvillePittsburgh
TYS Knoxville McGhee Tyson - PIT Pittsburgh
TYSPIT
Knoxville McGhee Tyson
Mon 10/19
7:00 am-5:07 pm
3 stops34h 07m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$201
KnoxvillePittsburgh
TYS Knoxville McGhee Tyson - PIT Pittsburgh
TYSPIT
Knoxville McGhee Tyson
Wed 10/14
4:14 pm-6:56 pm
3 stops26h 42m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$260
KnoxvillePittsburgh
TYS Knoxville McGhee Tyson - PIT Pittsburgh
TYSPIT
Knoxville McGhee Tyson
Sat 10/3
5:45 pm-9:39 pm
1 stop3h 54m
Pittsburgh
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$260
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Knoxville to Pittsburgh
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Pittsburgh in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Knoxville-Pittsburgh flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Pittsburgh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Pittsburgh flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Knoxville-Pittsburgh flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Pittsburgh flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Knoxville to Pittsburgh
Have a flexible travel schedule? Discover the best time to fly to Pittsburgh from Knoxville with our price prediction graph.
TYS-PIT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Knoxville to Pittsburgh
Reviews of airlines servicing Pittsburgh
Get insights into the airlines that provide service to Pittsburgh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pittsburgh. Reviews last updated September 22, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Knoxville to Pittsburgh to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Pittsburgh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Pittsburgh?
Book flights to Pittsburgh if you plan to visit one of these locationsMonroeville
Washington
Chester
Mars
Wexford
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Knoxville
Pittsburgh flight routes
Popular flights
Alternative routes for Knoxville to Pittsburgh
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Pittsburgh by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Knoxville to Pittsburgh by cabin class
Find flights from Knoxville to Pittsburgh, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Knoxville and Pittsburgh flights
Browse other Knoxville and Pittsburgh flight options. Last updated on September 22, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on September 22, 2026.
Other flights to Pittsburgh
Explore flights to Pittsburgh departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Knoxville to Pittsburgh
Discover the top 4 airlines that operate flights from Knoxville to Pittsburgh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$247 | Average$406 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$277 | Average$398 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$295 | Average$391 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$309 | Average$343 | FlexibilityNo cancel fee | On-time69% |