TYS - BUF

$249 Find Cheap Flights from Knoxville to Buffalo

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Buffalo departing on 7/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Buffalo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Buffalo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Buffalo, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Knoxville to Buffalo (TYS-BUF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Buffalo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Knoxville to Buffalo

Mon, Jul 14 - Mon, Jul 21
American Airlines Logo
6:27 pm - 10:57 pmTYS-BUF
4h 30m1 stop
American Airlines Logo
6:00 am - 11:23 amBUF-TYS
5h 23m1 stop
$249American Airlines
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Wed, Jul 2 - Wed, Jul 9
American Airlines Logo
2:48 pm - 6:30 pmTYS-BUF
3h 42m1 stop
American Airlines Logo
6:28 am - 10:28 amBUF-TYS
4h 00m1 stop
$254American Airlines
Find Deal
Fri, Jul 25 - Sun, Jul 27
American Airlines Logo
7:52 pm - 12:32 amTYS-BUF
4h 40m1 stop
American Airlines Logo
6:00 am - 10:36 amBUF-TYS
4h 36m1 stop
$279American Airlines
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Fri, Jun 27 - Sun, Jun 29
American Airlines Logo
7:53 pm - 12:38 amTYS-BUF
4h 45m1 stop
American Airlines Logo
5:44 pm - 9:50 pmBUF-TYS
4h 06m1 stop
$284American Airlines
Find Deal
Sat, Sep 27 - Mon, Sep 29
United Airlines Logo
7:00 am - 11:43 amTYS-BUF
4h 43m1 stop
United Airlines Logo
10:28 am - 10:50 pmBUF-TYS
12h 22m2 stops
$343United Airlines
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Fri, Sep 19 - Tue, Sep 23
United Airlines Logo
7:25 pm - 11:59 pmTYS-BUF
4h 34m1 stop
United Airlines Logo
2:50 pm - 10:35 pmBUF-TYS
7h 45m2 stops
$354United Airlines
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Tue, Jul 1 - Sun, Jul 6
Delta Logo
6:10 am - 1:36 pmTYS-BUF
7h 26m1 stop
Delta Logo
6:00 am - 11:08 amBUF-TYS
5h 08m1 stop
$469Delta
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Wed, Jul 2 - Sun, Jul 6
Delta Logo
6:10 am - 1:36 pmTYS-BUF
7h 26m1 stop
Delta Logo
6:00 am - 11:08 amBUF-TYS
5h 08m1 stop
$474Delta
Find Deal
Wed, Jul 2 - Sun, Jul 6
 Logo
9:36 pm - 10:32 amTYS-BUF
36h 56m3 stops
 Logo
11:41 am - 10:11 amBUF-TYS
22h 30m3 stops
Wed, Jul 2 - Sun, Jul 6
 Logo
9:36 pm - 10:32 amTYS-BUF
36h 56m3 stops
 Logo
11:41 am - 10:11 amBUF-TYS
22h 30m3 stops
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KAYAK's insights & trends for Knoxville to Buffalo flights

Get data-powered insights and trends into flights from Knoxville to Buffalo to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Knoxville to Buffalo?

The average price of all round-trip flights from Knoxville to Buffalo clicked on KAYAK for each day over the last 12 months.

When flying from Knoxville to Buffalo, you should consider leaving on a Wednesday and avoid Mondays if you are looking for the best rates. For your return to Knoxville, you’ll find the best rates on Tuesdays and the most expensive ones on Mondays.

What is the cheapest month to fly from Knoxville to Buffalo?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Buffalo, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Knoxville to Buffalo is October, where tickets cost $223 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $428 and $424 respectively.

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$249
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Knoxville to Buffalo

When to book flights from Knoxville to Buffalo

Are your dates flexible? Find out the best times to travel from Knoxville to Buffalo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Knoxville to Buffalo

  • What is the cheapest flight from Knoxville to Buffalo?

    In the last 3 days, the lowest price for a flight from Knoxville to Buffalo was $274 for a one-way ticket and $249 for a round-trip.

  • Do I need a passport to fly between Knoxville and Buffalo?

    No

  • Which airports will I be using when flying from Knoxville to Buffalo?

    On your way to Buffalo, you’ll fly out from Knoxville McGhee Tyson. You’ll be landing at Buffalo.

  • Which aircraft models fly most regularly from Knoxville to Buffalo?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to Buffalo?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Knoxville and Buffalo, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to Buffalo, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to Buffalo are Delta and United Airlines. With an average price for the route of $248 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $363 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Knoxville to Buffalo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knoxville to Buffalo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to Buffalo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buffalo from Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to Buffalo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Buffalo with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and BUF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to Buffalo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Buffalo from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Knoxville to Buffalo

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Buffalo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to Buffalo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7963 reviews
7.3Food
8.2Boarding
7.9Comfort
8.5Crew
7.9Entertainment
Airline reviews

I like for how they process during check in. It was very smoothly.

10.0 ExcellentAbdulla, Jun 2025CMH - JFK
Read more Delta reviews

I like for how they process during check in. It was very smoothly.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

I sat in comfort plus. It was fine. Seats were comfortable. I got drinks and snacks.

Good and consistent Printer in lounge did not work for me :(

Flight heavily delayed. No food available despite purchasing an upgrade. No in cabin service.

Gate agent did not hold flight for connection, provided no assistance to get new flight

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Whenever a passenger purchase a ticket his advantage number should automatically to his information. It's not everyone remember the number. You request for your number and American airline agent say they will email it....and they never email anything and you loose your mileage just because you don't remember your number. It should automatically go your information and associate with your email account at all times

During service there was a garbage/beverage spill near our seats that never was cleaned up. On a relatively short flight when we’re fortunate enough to actually have in flight movies available, the flight attendants pitching the AADVANTAGE credit card shouldn’t talk for the last 10 minutes of the flight so that we miss the end of the movie.

Not sure the logic of the boarding in Groups. I was loaded first on the aisle. Then the guy in the middle. Then the guy by the window. Constantly holding up the other people boarding behind them with us blocking the aisle and this happened in most of the other rows

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

I didn’t like anything, being platinum pro get you absolutely nowhere and does not increase the customer service treatment whatsoever anymore. My flight was canceled and they put me on a flight eight hours later that would’ve got me back in the middle of the night. They could’ve easily move me up to an hour Prior on an earlier flight. My second flight was unreasonable to take, the third flight was also canceled due to mechanical issues like the first flight. I don’t know what’s going on with American, but they are falling apart, after seven flight changes I finally got home, Unreasonable.

Flight was empty so had a whole row to myself. Still had to wait to get the bag due to the negligence at Palm Springs departure.

I flew out of Reagan National. My flight was delayed, delayed, delayed, and then canceled ...THREE TIMES over TWO DAYS. Staff were seemingly not empowered to provide information on why the flights were screwed up. A real nightmare.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Only thing that I liked it that I got to my destination safely, otherwise American Airlines stinks.

Everything you need to know for your flight from Knoxville to Buffalo

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