$39 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 7/31. 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

KAYAK searches hundreds of travel sites at once for deals on flights to the United States

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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$101
Orlando
Orlandononstop$97
Los Angeles
Los Angeles1 stop$240
Las Vegas
Las Vegasnonstop$152
Chicago
Chicagononstop$163
San Francisco
San Francisco1 stop$287
Miami
Miaminonstop$245
Boston
Bostonnonstop$155
Fort Lauderdale
Fort Lauderdalenonstop$113
Denver
Denvernonstop$149
Seattle
Seattle1 stop$334
Atlanta
Atlanta1 stop$204
Dallas
Dallasnonstop$270
Tampa
Tampa1 stop$217
Houston
Houstonnonstop$84
San Diego
San Diego1 stop$222
Honolulu
Honolulu2 stops$621
Philadelphia
Philadelphianonstop$59
New York
Newarknonstop$101
Orlando
Orlandononstop$97
Los Angeles
Los Angeles1 stop$240
Las Vegas
Las Vegasnonstop$152
Chicago
Chicagononstop$163
San Francisco
San Francisco1 stop$287
Miami
Miaminonstop$245
Boston
Bostonnonstop$155
Fort Lauderdale
Fort Lauderdalenonstop$113
Denver
Denvernonstop$149
Seattle
Seattle1 stop$334
Atlanta
Atlanta1 stop$204
Dallas
Dallasnonstop$270
Tampa
Tampa1 stop$217
Houston
Houstonnonstop$84
San Diego
San Diego1 stop$222
Honolulu
Honolulu2 stops$621
Philadelphia
Philadelphianonstop$59

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

Fri, Jun 26 - Mon, Jun 29
Allegiant Air Logo
7:22 pm - 8:58 pm
TYS
-
MCO
1h 36mnonstop
Allegiant Air Logo
9:48 pm - 11:34 pm
MCO
-
TYS
1h 46mnonstop
$97Allegiant Air
Thu, Jul 9 - Fri, Jul 10
Allegiant Air Logo
12:59 pm - 2:34 pm
TYS
-
SFB
1h 35mnonstop
Allegiant Air Logo
7:40 pm - 9:15 pm
SFB
-
TYS
1h 35mnonstop
$97Allegiant Air
Sat, Jun 27 - Sun, Jun 28
United Airlines Logo
6:00 am - 6:59 am
TYS
-
ORD
1h 59mnonstop
United Airlines Logo
7:45 pm - 10:34 pm
ORD
-
TYS
1h 49mnonstop
$249United Airlines
Mon, Aug 17 - Wed, Aug 19
Southwest Logo
5:45 pm - 11:20 pm
TYS
-
LGA
5h 35m
1 stop
Southwest Logo
2:30 pm - 6:55 pm
LGA
-
TYS
4h 25m
1 stop
$257Southwest
Fri, Jul 3 - Tue, Jul 7
American Airlines Logo
11:03 am - 4:46 pm
TYS
-
ORD
6h 43m
1 stop
American Airlines Logo
7:09 pm - 9:58 pm
ORD
-
TYS
1h 49mnonstop
$259American Airlines
Wed, Aug 5 - Sat, Aug 8
American Airlines Logo
6:52 pm - 8:04 pm
TYS
-
ORD
2h 12mnonstop
American Airlines Logo
6:49 am - 12:27 pm
ORD
-
TYS
4h 38m
1 stop
$260American Airlines
Tue, Sep 1 - Sat, Sep 5
Southwest Logo
1:55 pm - 8:25 pm
TYS
-
LGA
6h 30m
1 stop
Southwest Logo
7:00 am - 5:40 pm
LGA
-
TYS
10h 40m
1 stop
$263Southwest
Wed, Aug 5 - Sat, Aug 8
Delta Logo
4:38 pm - 8:50 pm
TYS
-
DFW
5h 12m
1 stop
Delta Logo
6:40 am - 12:28 pm
DFW
-
TYS
4h 48m
1 stop
$273Delta
Fri, Jun 26 - Tue, Jul 7
Delta Logo
3:54 pm - 10:15 pm
TYS
-
DFW
7h 21m
1 stop
Delta Logo
10:06 am - 5:16 pm
DFW
-
TYS
6h 10m
1 stop
$280Delta
Thu, Aug 20 - Mon, Aug 24
United Airlines Logo
7:15 am - 1:29 pm
TYS
-
DFW
7h 14m
1 stop
United Airlines Logo
2:26 pm - 8:53 pm
DFW
-
TYS
5h 27m
1 stop
$283United Airlines
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 7 days was to New York, at $105 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 7 days was $268.

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

The average price for all round-trip flights from Knoxville to the United States depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to the United States is generally in the morning, when round-trip flights cost $322 on average. Morning departures are around 23% 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 $417.

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 $290, 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 January, when tickets cost $268 (return) on average. On the other hand, the most expensive months are March and April, when the average cost of round-trip tickets is $416 and $393 respectively.

Good to know

Low seasonFebruary
Cheapest flight$39
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Knoxville to Orlando 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.

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 $186 one-way - $384 round-trip; Dallas $271 one-way - $431 round-trip; Chicago $258 one-way - $394 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.
8.0
SouthwestOverall score based on 4260 reviews
8.6Crew
7.5Entertainment
8.1Boarding
7.0Food
8.0Comfort
Airline reviews

I don't know why flying out of Sarasota requires two plane changes.

10.0 ExcellentJohn, Jun 2026
DAL - ABQ
Read more Southwest reviews

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Seats were very comfortable. They tilted back. Drinks and snacks were free and served 3 times. Attendants were awesome.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

Seats were very uncomfortable and being charged for snacks and water.........

Allegiant actually impressed me, original inbound flight from PBG was so late they gave us a bird inbound from Des Moines and only left 1h late and gained 40 minutes back in the air. Comfortable flight with no frills but no complaints.

Flight was delayed. Crew was good but hot coffee was not available.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

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

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

They made nearly everyone check their bag because the overhead bins are way too small. Extremely inconvenient

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The flight attendants were very friendly, efficient, and helpful. The plane was ahead of schedule, and it all went very smoothly. Thank you.

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

Information on your arrival and departure airports