$49 Find Cheap Flights from Knoxville to the United States

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to the United States departing on 2/24. 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.
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Best United States Flight Deals from Knoxville

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

New York
Newarknonstop$86
Los Angeles
Los Angeles1 stop$160
Orlando
Orlandononstop$78
Las Vegas
Las Vegasnonstop$130
Miami
Miaminonstop$179
Chicago
Chicago1 stop$140
San Francisco
San Francisco1 stop$309
Boston
Bostonnonstop$90
Washington, D.C.
Baltimore1 stop$173
Denver
Denvernonstop$98
Seattle
Seattle2 stops$247
Fort Lauderdale
Fort Lauderdalenonstop$86
Atlanta
Atlanta1 stop$203
Dallas
Dallas1 stop$140
Tampa
Tampa1 stop$199
Houston
Houstonnonstop$209
Honolulu
Honolulu2 stops$801
San Diego
San Diego1 stop$229
Philadelphia
Philadelphia1 stop$160

Good to know

Low season

January

High season

October

Cheapest flight

$49
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Knoxville to Orlando Sanford Intl

Flights from Knoxville to the United States: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Knoxville to the United States 
JenniferFlew with DeltaTYS-LGAMay 2024
Make sure you bring your own source of entertainment or be prepared to take a long nap!
CynthiaFlew with DeltaTYS-ATLApr 2024
Make sure you carry very small carry on. Those planes have minimal overhead space!

FAQs - booking United States flights

  • How long is the flight to the United States from Knoxville?

    Flights to Orlando1h 48m
    Flights to Philadelphia1h 56m
    Flights to Houston2h 27m
    Flights to Charlotte1h 16m
    Flights to Tampa1h 40m
  • What is the cheapest flight to the United States from Knoxville?

    The cheapest ticket to the United States from Knoxville found in the last 72 hours was $49 one-way, and $78 round-trip. The most popular route is from Knoxville to Charlotte, and the cheapest round-trip airline ticket found on this route in the last 72 hours was $174.

  • Which airlines fly to the United States?

    American Airlines flies most frequently to Charlotte from Knoxville. In general, Allegiant Air, United Airlines and Qatar Airways fly the most to the United States.

  • How does KAYAK find such low prices on flights from Knoxville to the United States?

    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 the United States.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Knoxville to the United States 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 the United States?

    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 from Knoxville to the United States with an airline and back with another airline.

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

    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 from Knoxville to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from Knoxville to the following destinations at these prices or less: Atlanta $262 one-way - $366 round-trip; Charlotte $219 one-way - $327 round-trip; Dallas $269 one-way - $345 round-trip
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be January, November and December. The cheapest month to fly from Knoxville is August.
  • Morning departure is around 12% cheaper than an evening flight, on average*.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Knoxville to the United States

Need help choosing which airline to fly with from Knoxville to the United States? 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 8330 reviews
7.9Entertainment
8.5Crew
7.3Food
8.2Boarding
8.0Comfort
Airline reviews

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

8.0 ExcellentMichael, Feb 2025LGA - CMH
Read more Delta reviews

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Kind staff. Snacks are small but that’s the new normal.

The young man who was our flight attendant in first class was lazy and did not do his job well at all. Never offered drinks upon boarding - actually I take that back... said "are you okay with water" as if I do not want to get you anything else, only passed the snacks around once, got my drink order wrong and then never offered a second round of drinks. He was the worst I have ever seen on Delta and we fly a lot.

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Flight left early and arrived early. the whole trip was excellent.

Seats were really tight and the seat belts did not give enough slack.

I like in St George and prefer to fly out of CDC than SGU. Hopefully, they will continue the flights out of Cedar

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Our seats were all the way in back of the plane,

Food choices were very limited. Taste of the dishes was average.

Maybe add a seat trade app for flyers that didn’t get seats together

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

They boarded passengers that sat in the back of the plane first, making boarding very efficient.

I didn't even take this flight. My plans changed and I couldn't get ahold of customer service and the website kept breaking down during the attempt to change the flight. I wound up taking another airline entirely and eating the cost.

The worst flying experience ever 3 delays. No accommodations. Had to deboard the plane after being delayed.

Posted a 20minute delay but didn’t delay at all. Caused boarding issues and confusion. Also, didn’t release baggage. Took over an hour and 20 minutes to get luggage.

Flight was good, boarding was a breeze, flight attendants were friendly and professional. There was a medical issue with another passenger and the crew handled it in a calm and professional way.

The net issue I had was with the gate agent. We had added a carryon to our boarding pass when we checked bags. When I got to the boarding gate the agent was rude asking why I had a backpack - I said I added it - even had an orange tag on it. She ripped my tag off and swung her monitor around to show me how she was right- saying it isn’t wasn’t listed - only a checked bag. I explained again that I wasn’t sure what the issue was but I wouldn’t have an orange tag if I hadn’t added it. Then she finally checked my husband’s boarding pass and found that the agent at checkin had added my carryon to his boarding pass instead of mine. She sent me on my way without my orange tag. Was a bit embarrassing for me the tone she used with me assuming I was trying to get away with something.

Almost everything was outstanding. First, we boarded on time and the flight crew did a great job getting everyone seated. Then the pilots took their time and care to make sure the plane was full de-iced three times as there was a bad ice storm a few hours earlier. The plane ride was smooth and comfortable and even the economy seats had decent room and comfort. Flight Attendant Lisa went above and beyond to make sure I was comfortable - she is outstanding. The only thing wrong with the flight, and it is something which needs to be addressed, is that the gate to gate time was over 6.5 hours and not one meal was served. The only thing offered to eat were two small cookies for a transcontinental flight - unacceptable. Charge me more but give me a meal for a long flight. Thankfully Lisa found something for me.

The only thing is if Wi-Fi is available after you land and taxi to the gate. It takes forever to get to the gate, and having the Wi-Fi continue would be great to bide the time at least 5 minutes before you arrive at the entrance. That is my only comment; otherwise, everything was good.

I got bumped due to weight restrictions even tho there were empty seats on my flight. I got put on an other flight with a stopover. My flight that originally was going to take 5-6 hours ever up being 14+ hours and my luggage arrived to my destination without me because I was made to check in my luggage on my original flight when I was deemed ok to board only to be asked to deplane. Worst flight experience.

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

Checking in at the counter was very disappointing. The lady had a very bad attitude and smart at me. She had no smile, did not greet me by name, or acknowledge me as a valued customer. Poor reflection of the airline.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

Angela was the best fa ever. She made that 8 hour flight a breeze

Kayak boarding information contained inaccuracies that would have not existed if booked directly with American. Paid for preferential boarding, was last to board.

I had two wonderful flights - very relaxing and got me there early!

What, first class and not even a cup of coffee before landing at 5 am in First Class? Really?

Check in at Philadelphia international was absolutely terrible! I fly 2 to 3 times a month and avoid frontier at all cost and will never fly Frontier again! The night before travel, I tried checking in however, the app was giving me an error, so I went to the desktop, which instructed you that you need to use the app. The next day I presented at the check-in gate after trying at least a half dozen times prior to getting into the airport and continuing to getting the error in the app. I actually had rebooted my phone numerous times and reinstall the app just in case. My phone is only one generation older than the current model. It has no problems completing a frontier flight purchase or any other app issues. There was only three frontier employees working at check-in and a huge line while I was in line I continued to try and check in via the app. As I approach the desk, I was dreading dealing with the agent. He was extremely unprofessional, anti-semantic & very ignorant, and mean to the people in front of me, as well as the people who ended up being behind me. He literally told people “Man I don’t care bout y’all” in his native dialect! Maintaining my composure I approached and explained the situation. To which he replied, you’re gonna have to pay then! I don’t understand. It’s an issue with their app not allowing me to check in! Not my issue! He told me if I pay cash it would be $15, $25 if I pay credit card. I don’t understand a $10 difference for paying with a credit card? I am completely cashless so I continued to try using the app to avoid the $25 fee, Which I still don’t believe that I should be responsible for since it was Frontier’s technical issue!!! I continued to check in via the app a couple more times after he verified I was doing everything right he proceeded to continue to belittle the people behind me. Yelling at them saying I don’t care about you people! I cannot believe that this is the way that businesses would treat its customers! Unfortunately, the black mail with dreadlocks did not have a name tag all he had was a frontier sweater on! For the $25 fee that I ended up getting charged on my credit card. I should’ve just booked originally with Spirit or any other carrier! I have no problem paying fees that I should be responsible for, but when it’s due to a technical failure of a company, the customer should not be responsible for it! I cannot believe that it’s not frontier going out of business!

they delayed my flight which ended up, causing my layover flight to leave without me, resulting in me missing a flight and having to stay overnight in Houston international. I got no compensation other than a flight to my original location only a day later. i’ve never experienced such a unprofessional situation

Very easy with the app to board and staff skills

After waiting several minutes to be acknowledged by 3 employees on their phones, was told we had missed our flight because the doors were closed at that literal moment. Had they given any actual service or help while we were standing there we would have been on with time to spare. More than 10 people were turned away in this fashion claiming there was no way they could let us on the plane, even though it was still sitting connected to the terminal. After the desk agents let us know they didn't care about the situation we were forced to pay more than twice the price of our original tickets as no credits were given for the price of the "missed" flight. And the icing on the cake was after being treated poorly, fleeced for another few hundred dollars for new tickets? We waited on the next plane for 25 minutes passed the "doors closed" time, letting almost an extra dozen passengers on board. You're company has lazy, disinterested employees and your lack of any real help will ensure this was the first and last time we fly Frontier. Awful.

My experience with the phoenix airport was terrible, the personnel lay the ticket counter charged me for a carry on that fit in the carry on size box, and the two women I spoke with were terribly rude and not willing to help.,,, there was one lady “candy” on the flight crew that was amazing and is the only reason I stayed on the flight at all, because the other stewards helping people to get seated on the plane were terrible

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

The plane was clean, the crew was friendly and helpful. It’s a low cost airline so there was no food, drinks or in flight entertainment but we didn’t expect any of these things. In the room for improvement department, they should install USB ports in seats to charge mobile devices.

The seats were extremely hard and uncomfortable, even for a budget airline.

The seats were extremely hard and uncomfortable. It was disappointing even for a budget airline.

Charging $74 for one checked bag is outrageous. I will never fly Frontier again.

Book cheap flights from Knoxville to the United States

Recent round-trip flight deals

2/24Mon
nonstopAllegiant Air
1h 37mTYS-SFB
2/26Wed
nonstopAllegiant Air
1h 37mSFB-TYS
$78
3/31Mon
nonstopAllegiant Air
1h 36mTYS-SFB
4/3Thu
nonstopAllegiant Air
1h 36mSFB-TYS
$83
3/6Thu
nonstopFrontier
3h 29mTYS-DEN
3/9Sun
nonstopFrontier
2h 43mDEN-TYS
$99
3/6Thu
1 stopFrontier
8h 52mTYS-DFW
3/8Sat
1 stopFrontier
15h 20mDFW-TYS
$140
3/19Wed
nonstopDelta
2h 02mTYS-LGA
3/26Wed
nonstopDelta
2h 19mLGA-TYS
$179
4/16Wed
nonstopUnited Airlines
1h 57mTYS-ORD
4/21Mon
nonstopUnited Airlines
1h 47mORD-TYS
$184
3/11Tue
nonstopAmerican Airlines
1h 57mTYS-LGA
3/18Tue
nonstopAmerican Airlines
2h 41mLGA-TYS
$189
4/11Fri
nonstopUnited Airlines
1h 57mTYS-ORD
4/13Sun
nonstopUnited Airlines
1h 47mORD-TYS
$189
4/16Wed
nonstopAmerican Airlines
2h 03mTYS-LGA
5/28Wed
nonstopAmerican Airlines
2h 10mLGA-TYS
$203
5/8Thu
nonstopDelta
2h 04mTYS-LGA
5/17Sat
nonstopDelta
2h 11mLGA-TYS
$204

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Recent one-way flight deals

2/24Mon
nonstopAllegiant Air
1h 37mTYS-SFB
$49
4/14Mon
nonstopAllegiant Air
2h 06mTYS-FLL
$54
4/10Thu
1 stopFrontier
8h 43mTYS-DFW
$55
4/10Thu
1 stopFrontier
8h 44mTYS-ORD
$75
3/12Wed
nonstopAmerican Airlines
2h 00mTYS-ORD
$90
2/22Sat
1 stopAmerican Airlines
7h 11mTYS-FLL
$100
3/11Tue
1 stopDelta
5h 30mTYS-ORD
$100
3/5Wed
nonstopUnited Airlines
1h 42mTYS-IAD
$100
3/5Wed
1 stopUnited Airlines
4h 41mTYS-IAD
$110
5/20Tue
nonstopDelta
2h 06mTYS-LGA
$114

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Last minute flights from Knoxville to the United States

Last minute flight, train and bus deals

2/16Sun
nonstopAllegiant Air
1h 37mTYS-SFB
2/21Fri
nonstopAllegiant Air
1h 38mSFB-TYS
$115
2/16Sun
nonstopAllegiant Air
1h 37mTYS-SFB
2/20Thu
nonstopAllegiant Air
1h 38mSFB-TYS
$120
2/15Sat
nonstopUnited Airlines
2h 02mTYS-ORD
2/27Thu
nonstopUnited Airlines
1h 45mORD-TYS
$279
2/15Sat
nonstopDelta
2h 02mTYS-LGA
2/18Tue
nonstopDelta
2h 19mLGA-TYS
$283
2/15Sat
multi-stopUnited Airlines
5h 01mTYS-ORD
2/27Thu
nonstopUnited Airlines
1h 45mORD-TYS
$289
2/15Sat
multi-stopDelta
5h 36mTYS-LGA
2/18Tue
nonstopDelta
2h 16mLGA-TYS
$293
2/15Sat
multi-stopAmerican Airlines
3h 44mTYS-JFK
2/22Sat
multi-stopAmerican Airlines
4h 16mJFK-TYS
$303
2/17Mon
multi-stop
6h 30mTYS-FLL
2/18Tue
nonstop
2h 09mFLL-TYS
$310
2/17Mon
multi-stop
6h 30mTYS-FLL
2/18Tue
nonstop
2h 09mFLL-TYS
$313
2/14Fri
nonstopAmerican Airlines
1h 57mTYS-LGA
2/18Tue
nonstopAmerican Airlines
2h 28mLGA-TYS
$331

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Everything you need to know for your flight from Knoxville to the United States

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