$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 6/8. 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$95
Orlando
Orlandononstop$98
Los Angeles
Los Angeles1 stop$223
Las Vegas
Las Vegasnonstop$160
Chicago
Chicagononstop$174
San Francisco
San Francisco1 stop$337
Miami
Miaminonstop$245
Boston
Bostonnonstop$103
Fort Lauderdale
Fort Lauderdalenonstop$113
Denver
Denvernonstop$163
Seattle
Seattle2 stops$361
Atlanta
Atlanta1 stop$137
Dallas
Dallasnonstop$270
Tampa
Tampa1 stop$241
Houston
Houstonnonstop$97
San Diego
San Diego1 stop$267
Honolulu
Honolulu2 stops$674
Philadelphia
Philadelphianonstop$59
New York
Newarknonstop$95
Orlando
Orlandononstop$98
Los Angeles
Los Angeles1 stop$223
Las Vegas
Las Vegasnonstop$160
Chicago
Chicagononstop$174
San Francisco
San Francisco1 stop$337
Miami
Miaminonstop$245
Boston
Bostonnonstop$103
Fort Lauderdale
Fort Lauderdalenonstop$113
Denver
Denvernonstop$163
Seattle
Seattle2 stops$361
Atlanta
Atlanta1 stop$137
Dallas
Dallasnonstop$270
Tampa
Tampa1 stop$241
Houston
Houstonnonstop$97
San Diego
San Diego1 stop$267
Honolulu
Honolulu2 stops$674
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

Mon, Jun 15 - Fri, Jun 19
Allegiant Air Logo
7:22 pm - 8:58 pm
TYS
-
MCO
1h 36mnonstop
Allegiant Air Logo
9:52 pm - 11:38 pm
MCO
-
TYS
1h 46mnonstop
$98Allegiant Air
Mon, Jun 15 - Sat, Jun 20
Allegiant Air Logo
10:03 pm - 11:37 pm
TYS
-
SFB
1h 34mnonstop
Allegiant Air Logo
8:15 pm - 9:53 pm
SFB
-
TYS
1h 38mnonstop
$98Allegiant Air
Tue, Aug 11 - Wed, Aug 12
Southwest Logo
8:00 am - 9:40 am
TYS
-
BWI
1h 40mnonstop
Southwest Logo
6:30 am - 12:05 pm
BWI
-
TYS
5h 35m
1 stop
$197Southwest
Tue, Jul 7 - Tue, Jul 7
Delta Logo
5:40 am - 9:24 am
TYS
-
BWI
3h 44m
1 stop
Delta Logo
6:20 pm - 11:52 pm
BWI
-
TYS
5h 32m
1 stop
$207Delta
Wed, Oct 21 - Mon, Oct 26
Southwest Logo
8:55 am - 10:25 am
TYS
-
BWI
1h 30mnonstop
Southwest Logo
9:10 am - 4:45 pm
BWI
-
TYS
7h 35m
1 stop
$210Southwest
Wed, Jul 8 - Fri, Jul 17
Delta Logo
7:43 pm - 12:39 am
TYS
-
BWI
4h 56m
1 stop
Delta Logo
5:40 am - 9:36 am
BWI
-
TYS
3h 56m
1 stop
$227Delta
Fri, Jul 3 - Tue, Jul 7
American Airlines Logo
6:32 pm - 7:50 pm
TYS
-
ORD
2h 18mnonstop
American Airlines Logo
9:40 am - 12:30 pm
ORD
-
TYS
1h 50mnonstop
$249American Airlines
Wed, Aug 5 - Sat, Aug 8
American Airlines Logo
6:52 pm - 8:04 pm
TYS
-
ORD
2h 12mnonstop
American Airlines Logo
8:55 pm - 11:43 pm
ORD
-
TYS
1h 48mnonstop
$250American Airlines
Thu, Jun 18 - Thu, Jun 25
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
$260United Airlines
Thu, Aug 13 - Mon, Aug 17
United Airlines Logo
7:15 am - 11:01 am
TYS
-
DFW
4h 46m
1 stop
United Airlines Logo
11:56 am - 8:53 pm
DFW
-
TYS
7h 57m
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 $87 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 $253.

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 $323 on average. Morning departures are around 21% 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 $408.

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 $289, 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 $269 (return) on average. On the other hand, the most expensive months are March and April, when the average cost of round-trip tickets is $417 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 with an average 5% increase in price.
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 $178 one-way - $382 round-trip; Dallas $264 one-way - $418 round-trip; Chicago $246 one-way - $389 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
SouthwestOverall score based on 4265 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
7.0Food
Airline reviews

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.

4.0 OkayAnonymous, May 2026
MDW - LAX
Read more Southwest reviews

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.

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

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

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

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.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

We had a delay, but thankfully I made it to my connection. Overall it went smooth

The flight had a delay but I made it to my connection. Flight was smooth overall

As I wrote earlier, poor planning and/or communication. At least twice, we were told that we would be boarding in less than ten minutes, only to have the flight again delayed at least another hour.

This flight is a quick way to get to Chicago, but a bit expensive.

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

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.

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.

They lost my baggage and I am still struggling to the information and update

We got delayed getting out of DFW for broken overhead bins. Once the flight got underway the captain kept the seatbelt sign lit the entire flight despite little perceptible turbulence, preventing use of the rest rooms and any sort of refreshment service in the main cabin.

Flight delays for communication overall not a good experience uncomfortable on the plane. Person in front of me reclined his seat, putting them inches from my lap.

There were flight delays making our flight arrive at our destination after midnight didn’t seem to have enough crew or airplanes for the flights laid over in Dallas should’ve had plenty of time to make it to our next flight only made it because that flight was also delayed because our plane wasn’t even at the airport yet overall have not had a good experience on American

Flight left on time. Captain provided relevant announcements. We had to wait 45 minutes to desembark due to the ramp closed because of lightening.

Cancelled flight. Still waiting to get home for grand daughter’s graduation .

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

Information on your arrival and departure airports