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$124+ Cheap flights from Knoxville to Buffalo (TYS - BUF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BUF
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Knoxville to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Buffalo (BUF). 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$251
(Delta)

One-way from

$124
(Kiwi.com)

Popular in

May

Cheapest in

March

Average price

$388
Provider with most accurate pricing for Knoxville McGhee Tyson-Buffalo flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Buffalo flights.
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From Knoxville McGhee Tyson to Buffalo
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One-way flight from Knoxville McGhee Tyson to Buffalo
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Highest demand for flights based on searches. 3% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Knoxville to Buffalo

Cheapest flights from Knoxville to Buffalo
Explore the most affordable flight options available from Knoxville to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/149:00 amTYS - BUF
2 stops12h 08mMultiple Airlines
Sun 11/166:59 pmBUF - TYS
1 stop18h 58mMultiple Airlines
Deal found 10/29$284
This Delta deal was found by Cheapflights users on 10/30. 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 12/412:50 pmTYS - BUF
1 stop4h 20mDelta
Sun 12/76:12 amBUF - TYS
1 stop5h 35mDelta
Deal found 10/30$337
This American Airlines deal was found by Cheapflights users on 10/30. 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 12/45:05 amTYS - BUF
2 stops7h 08mAmerican Airlines
Sun 12/711:39 amBUF - TYS
1 stop4h 26mAmerican Airlines
Deal found 10/30$342
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/216:45 amTYS - BUF
1 stop6h 32mUnited Airlines
Fri 11/2810:37 amBUF - TYS
1 stop4h 06mUnited Airlines
Deal found 10/29$357
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/219:45 pmTYS - BUF
2 stops37h 40mMultiple Airlines
Fri 11/2811:52 amBUF - TYS
1 stop7h 27mMultiple Airlines
Deal found 10/29$377
This Delta deal was found by Cheapflights users on 10/28. 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 11/115:35 amTYS - BUF
1 stop5h 25mDelta
Sat 11/1512:05 pmBUF - TYS
1 stop6h 57mDelta
Deal found 10/28$417
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/115:45 amTYS - BUF
1 stop4h 03mUnited Airlines
Sat 11/152:55 pmBUF - TYS
2 stops8h 00mUnited Airlines
Deal found 10/28$422
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/141:52 pmTYS - BUF
2 stops9h 30mUnited Airlines
Sun 11/165:40 pmBUF - TYS
1 stop5h 15mUnited Airlines
Deal found 10/29$453
This Delta deal was found by Cheapflights users on 10/28. 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 11/135:35 amTYS - BUF
1 stop5h 25mDelta
Mon 11/176:25 pmBUF - TYS
1 stop5h 16mDelta
Deal found 10/28$503
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/47:00 amTYS - BUF
2 stops7h 22mUnited Airlines
Sun 12/71:50 pmBUF - TYS
2 stops20h 58mUnited Airlines
Deal found 10/30$551

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Buffalo 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 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Knoxville to Buffalo that are best for you.

Fly from

Knoxville

Fly to

Buffalo

Route

Depart

Return

Price

KnoxvilleBuffalo

TYS - BUF

TYSBUF

Knoxville McGhee Tyson

Wed 2/18

7:30 am-11:51 am

1 stop4h 21m

Buffalo

Sat 2/21

5:55 pm-9:32 pm

1 stop3h 37m

$251

KnoxvilleBuffalo

TYS - BUF

TYSBUF

Knoxville McGhee Tyson

Wed 2/25

6:10 am-1:48 pm

1 stop7h 38m

Buffalo

Sat 2/28

6:25 am-11:47 am

1 stop5h 22m

$251

KnoxvilleBuffalo

TYS - BUF

TYSBUF

Knoxville McGhee Tyson

Wed 2/25

5:57 pm-11:38 pm

1 stop5h 41m

Buffalo

Sat 2/28

11:24 am-8:27 pm

2 stops9h 03m

$256

KnoxvilleBuffalo

TYS - BUF

TYSBUF

Knoxville McGhee Tyson

Fri 11/14

9:00 am-9:08 pm

2 stops12h 08m

Buffalo

Sun 11/16

6:59 pm-1:57 pm

1 stop18h 58m

$284

KnoxvilleBuffalo

TYS - BUF

TYSBUF

Knoxville McGhee Tyson

Wed 2/18

12:15 pm-5:53 pm

1 stop5h 38m

Buffalo

Sat 2/21

5:21 am-2:28 pm

2 stops9h 07m

$326

KnoxvilleBuffalo

TYS - BUF

TYSBUF

Knoxville McGhee Tyson

Fri 3/13

7:25 pm-11:46 pm

1 stop4h 21m

Buffalo

Wed 3/18

10:10 am-2:56 pm

1 stop4h 46m

$337

KnoxvilleBuffalo

TYS - BUF

TYSBUF

Knoxville McGhee Tyson

Thu 12/4

12:50 pm-5:10 pm

1 stop4h 20m

Buffalo

Sun 12/7

6:12 am-11:47 am

1 stop5h 35m

$337

KnoxvilleBuffalo

TYS - BUF

TYSBUF

Knoxville McGhee Tyson

Sun 11/23

12:59 pm-4:20 pm

1 stop27h 21m

$124

KnoxvilleBuffalo

TYS - BUF

TYSBUF

Knoxville McGhee Tyson

Wed 11/26

6:10 am-10:45 am

1 stop28h 35m

$143

KnoxvilleBuffalo

TYS - BUF

TYSBUF

Knoxville McGhee Tyson

Thu 1/1

5:08 pm-10:57 pm

1 stop5h 49m

$150

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 13 results
1
2

Compare providers for flights from Knoxville to Buffalo

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 Buffalo in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-Buffalo flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Knoxville-Buffalo flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Knoxville-Buffalo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Buffalo flights, Cheapflights users trust eDreams the most. eDreams 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-Buffalo 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 Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from Knoxville with our price prediction graph.
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 Buffalo

What is the cheapest month to book a flight from Knoxville to Buffalo?

Currently, April is the cheapest month in which you can book a flight from Knoxville to Buffalo (average of $159). Flying from Knoxville to Buffalo in January is currently the most expensive (average of $248). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TYS to BUF?

Find hourly flight availability from Knoxville to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Knoxville to Buffalo in the afternoon. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from Knoxville to Buffalo?

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated October 30, 2025.
Get a feel of what it's like to fly with Delta and American Airlines from Knoxville to Buffalo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,998 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
American Airlines
7.2
Good
11,035 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Knoxville to Buffalo?

    Delta and American Airlines can get you from Knoxville to Buffalo in just under 4h 21m. Your travel time can differ by up to 1h 20m. There are 567 mi between Knoxville and Buffalo. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Knoxville to Buffalo round-trip?

    Flying on Delta is currently your cheapest option to Buffalo, with prices starting at $232. Another option worth looking into is American Airlines, starting at $248 round trip. These flights start at 26% lower than the current average price 3 months from now.

  • Can I find deals for flights from Knoxville to Buffalo that include hotel bookings?

    Yes. In addition to deals on Knoxville to Buffalo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Buffalo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Buffalo.

  • Can I find deals for business class flights from Knoxville to Buffalo?

    Yes. Cheapflights offers flight deals from Knoxville to Buffalo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to Buffalo?

    Currently, April is the cheapest month in which you can book a flight from Knoxville to Buffalo (average of $159). Flying from Knoxville to Buffalo in January is currently the most expensive (average of $248). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Lockport
Cheektowaga
Orchard Park
Batavia
Williamsville
Eden
Amherst
West Seneca

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Top 2 airlines flying from Knoxville to Buffalo

Discover the top 2 airlines that operate flights from Knoxville to Buffalo. 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 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$232Average$248FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$311FlexibilityNo cancel feeOn-time71%

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