$35 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 3/5. 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, 0 bags

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Cheap Flights from Knoxville to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
Newarknonstop$125
Orlando
Orlandononstop$114
Los Angeles
Los Angeles1 stop$192
Las Vegas
Las Vegasnonstop$184
Chicago
Chicagononstop$189
Miami
Miami1 stop$160
San Francisco
San Francisco1 stop$221
Boston
Bostonnonstop$92
Denver
Denvernonstop$151
Fort Lauderdale
Fort Lauderdalenonstop$136
Seattle
Seattle1 stop$260
Atlanta
Atlanta1 stop$167
Dallas
Dallas1 stop$160
Tampa
Tampa1 stop$160
Houston
Houston1 stop$160
Honolulu
Honolulu1 stop$664
San Diego
San Diego1 stop$190
Philadelphia
Philadelphia1 stop$169
New York
Newarknonstop$125
Orlando
Orlandononstop$114
Los Angeles
Los Angeles1 stop$192
Las Vegas
Las Vegasnonstop$184
Chicago
Chicagononstop$189
Miami
Miami1 stop$160
San Francisco
San Francisco1 stop$221
Boston
Bostonnonstop$92
Denver
Denvernonstop$151
Fort Lauderdale
Fort Lauderdalenonstop$136
Seattle
Seattle1 stop$260
Atlanta
Atlanta1 stop$167
Dallas
Dallas1 stop$160
Tampa
Tampa1 stop$160
Houston
Houston1 stop$160
Honolulu
Honolulu1 stop$664
San Diego
San Diego1 stop$190
Philadelphia
Philadelphia1 stop$169

Book Cheap Knoxville to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to the United States 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 the United States

Thu, Apr 2 - Sun, Apr 5
Allegiant Air Logo
8:20 am - 10:04 am
TYS
-
IAD
1h 44mnonstop
Allegiant Air Logo
12:56 pm - 2:36 pm
IAD
-
TYS
1h 40mnonstop
$85Allegiant Air
Thu, Mar 19 - Sun, Mar 22
Allegiant Air Logo
6:12 pm - 7:56 pm
TYS
-
IAD
1h 44mnonstop
Allegiant Air Logo
3:42 pm - 5:22 pm
IAD
-
TYS
1h 40mnonstop
$88Allegiant Air
Mon, Apr 6 - Sun, Apr 26
Frontier Logo
4:20 pm - 5:52 pm
TYS
-
DEN
3h 32mnonstop
Frontier Logo
10:45 am - 3:33 pm
DEN
-
TYS
2h 48mnonstop
$151Frontier
Fri, Mar 13 - Mon, Mar 30
Frontier Logo
4:20 pm - 5:52 pm
TYS
-
DEN
3h 32mnonstop
Frontier Logo
10:40 am - 3:25 pm
DEN
-
TYS
2h 45mnonstop
$154Frontier
Tue, Apr 14 - Tue, Apr 21
American Airlines Logo
1:20 pm - 2:52 pm
TYS
-
DFW
2h 32mnonstop
American Airlines Logo
12:10 pm - 3:18 pm
DFW
-
TYS
2h 08mnonstop
$189American Airlines
Fri, May 1 - Sun, May 3
United Airlines Logo
5:50 pm - 6:45 pm
TYS
-
ORD
1h 55mnonstop
United Airlines Logo
2:15 pm - 5:04 pm
ORD
-
TYS
1h 49mnonstop
$189United Airlines
Wed, Mar 25 - Sat, Mar 28
American Airlines Logo
6:21 pm - 8:05 pm
TYS
-
DFW
2h 44mnonstop
American Airlines Logo
8:20 am - 11:30 am
DFW
-
TYS
2h 10mnonstop
$193American Airlines
Fri, Apr 3 - Sun, Apr 5
United Airlines Logo
7:00 am - 7:55 am
TYS
-
ORD
1h 55mnonstop
United Airlines Logo
7:15 am - 10:08 am
ORD
-
TYS
1h 53mnonstop
$204United Airlines
Tue, Mar 24 - Tue, Mar 31
Delta Logo
5:40 am - 10:00 am
TYS
-
ORD
5h 20m
1 stop
Delta Logo
11:10 am - 4:06 pm
ORD
-
TYS
3h 56m
1 stop
$209Delta
Fri, Apr 10 - Mon, Apr 13
Delta Logo
6:38 pm - 10:42 pm
TYS
-
HOU
5h 04m
1 stop
Delta Logo
1:31 pm - 6:14 pm
HOU
-
TYS
3h 43m
1 stop
$264Delta
Booking Insights

KAYAK's insights & trends for Knoxville to the United States flights

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

What is the cheapest Knoxville to the United States flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United States from Knoxville found in the last 72 hours was to Boston, at $75 round-trip. The most popular route is from Knoxville (TYS) to Atlanta (ATL), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $259.

Can I save money by flying with a layover from Knoxville to the United States?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $296, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Knoxville to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to the United States, 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 the United States is April, when tickets cost $204 (return) on average. On the other hand, the most expensive months are November and February, when the average cost of round-trip tickets is $414 and $368 respectively.

Good to know

Low seasonJanuary
Cheapest flight$35
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Knoxville to Washington Dulles Airport

FAQs - booking United States flights

  • 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.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally in the morning, when round-trip flights cost $294 on average. Morning departures are around 22% cheaper than evening flights, on average. The most expensive time of day to fly to the United States is generally in the evening, which is peak travel time and where the average cost of a ticket is $375.

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 $217 one-way - $412 round-trip; Dallas $218 one-way - $412 round-trip; Chicago $234 one-way - $358 round-trip

Reviews of the 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.
7.9
DeltaOverall score based on 8237 reviews
7.2Food
7.9Comfort
8.5Crew
8.1Boarding
7.8Entertainment
Airline reviews

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

10.0 ExcellentBob, Feb 2026
FLL - MSP
Read more Delta reviews

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

it was a very short flight so my expectations were low.

As great a red-eye flight as red-eye flights can be.

Arrived early picked up my bag in a few minutes- great trip - thank you

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

Boarding is always an ordeal. Less dogs on flights. I am highly allergic to dogs and cats. Why are there so many animals these days?

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

There was a delay with the plan which cause the flight to leave later and once arrived in Chicago there was another delay and some passengers missed their connecting flights

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

Worst experience ever. Flight could not land in Charlotte for what we were told was a ground stop. Had to be diverted to Raleigh to refuel. Strangely during ground stop, our connecting flight had no issue taking off on time causing us to miss our flight. We were told there were no other flights that day to our final destination and that two days out was the next one. The only flights to get us there were from Chicago the next morning. Completely opposite direction but it was a direct flight. So we get flown to Chicago and have to find a hotel in our own dime. The flight in the morning was also delayed. Thankfully only a short time. The non too of all this, our luggage did not arrive by the time we were there. Communication was terrible, through the entire trip. Complete incompetence. Will never fly American again.

I am an AA flyer for a very long time... AA has yet to disappoint.

Flight was delayed. Not much information on when the flight would take off. Eventually we were told it was maintenance. App was not giving updates.

Never ontime and always delays. Long waits for customer service and often app doesn’t work

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

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

Information on your arrival and departure airports