$48 Find Cheap Flights from Knoxville to the United States - Compare and Save

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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 5 days
Sort by: Cheapest
Philadelphia
1h 50mNonstop
from $77per person
Newark
1h 50mNonstop
from $88per person
Fort Lauderdale
2h 01mNonstop
from $92per person
Washington, D.C.
1h 26mNonstop
from $112per person
Orlando
1h 33mNonstop
from $118per person
Denver
3h 06mNonstop
from $165per person
Boston
2h 12mNonstop
from $194per person
Los Angeles
7h 11m2 stops
from $199per person
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Booking Insights

Price, demand and travel trends for Knoxville to the United States flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Knoxville to the United States cheaper or more expensive than last year?

Fares from Knoxville to the United States are running about 7% higher than they were around this time last year, averaging $360 round-trip.

What are the cheapest fares from Knoxville to the United States right now?

Here are the cheapest round-trip fares from Knoxville to the United States on KAYAK in the last week:

• Tampa St. Petersburg (PIE) from $70
• Philadelphia (PHL) from $77
• Newark (EWR) from $88
• Fort Lauderdale (FLL) from $92
• Houston Hobby (HOU) from $100

What’s the cheapest month to fly from Knoxville to the United States?

February is the cheapest time of year to fly, with average fares of $317. Prices are highest in June, when average flight costs increase to around $390.

When is the best time to book flights from Knoxville to the United States?

Book your flights 6 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 27% compared to booking last-minute (within 2 weeks of departure).

Which airport in the United States is the cheapest to fly to from Knoxville?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into the United States are:

• Tampa St. Petersburg (PIE) from $149
• Orlando Sanford Intl (SFB) from $161
• Fort Lauderdale (FLL) from $233

What’s the cheapest day to fly from Knoxville to the United States?

Friday tends to be the cheapest day to fly from Knoxville to the United States, while Sunday is the most expensive. Fares run about 13% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Knoxville to the United States?

Data from the past 12 months shows it's cheapest to fly to the United States during the night with average prices of $206. The morning is the most expensive time to fly, with average prices of $399.

Key details for Knoxville to the United States flights

Low season

January

Cheapest flight

$48
Beat the crowds with an average 27% drop in travelers.
The most popular month to fly with an average 22% increase in travelers.
One-way flight from Knoxville to Orlando Sanford Intl Airport

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 
Verified travelerFlew with Frontier-Jul 2026
Give yourself plenty of layover time if you have a connecting flight
ErnestFlew with Delta-Jul 2026
If you are in zone 5 or higher be prepared because you may be asked to gate check your carry-on roller-bag.
CynthiaFlew with Delta-Apr 2024
Make sure you carry very small carry on. Those planes have minimal overhead space!

Your Knoxville to the United States flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Knoxville to the United States?

    Yes. Fares from Knoxville to the United States are low right now. As a rule of thumb, a round-trip under $239 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Knoxville to the United States?

    Over the past 12 months, round-trip fares from Knoxville to the United States have ranged from $239 to $515.

  • What are the main airports serving the United States?

    The United States has 50 airports. The three busiest are Orlando Sanford Intl (SFB) (5% of arrivals), Denver Intl (DEN) (5%) and Fort Lauderdale (FLL) (4%).

  • What airlines fly nonstop from Knoxville to the United States?

    Based on the flight schedule for the next 3 months, 6 airlines operate nonstop flights from Knoxville to the United States, including:

    • American Airlines
    • Delta
    • United Airlines
    • Allegiant Air
    • Southwest
    • Avelo Airlines

  • Where in the United States can I fly nonstop from Knoxville?

    You can fly nonstop from Knoxville to 23 destinations in the United States. Some of the most popular among KAYAK travelers include Orlando, New York, Washington, D.C., Denver and Chicago.

  • Is it cheaper to fly with a layover from Knoxville to the United States?

    Yes. Nonstop flights from Knoxville to the United States average $261 over the past 12 months. Flights with a layover can cost less, cheapest when connecting through Jacksonville (JAX) from $220.

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

    Nonstop flights take 2h on average. The fastest scheduled flight takes 1h 32m, from Knoxville McGhee Tyson (TYS) to Orlando Sanford Intl (SFB).

  • How often are flights from Knoxville to the United States delayed and what's the average delay?

    28% of flights on this route are delayed by at least 15 minutes. The average delay is 2h 02m.

  • Which cabin classes are available on flights from Knoxville to the United States?

    On flights from Knoxville to the United States you can book Economy Class, Business Class or First Class.

  • What are some popular landmarks in the United States?

    KAYAK travelers' favorite landmarks in the United States include:

    • Times Square
    • Universal Orlando Resort
    • New York City Center
    • San Antonio River Walk

  • What are the earliest and latest flights from Knoxville to the United States?

    The earliest nonstop flight from Knoxville to the United States departs at 5:15 am and the latest departs at 10:55 pm. Nonstop flights take about 2h.

Your guide to booking Knoxville to the United States flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 6 weeks before your trip. KAYAK data shows fares in this window are around 27% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for February when flights are typically cheapest and avoid June when prices are at their highest.
  • Flying on Friday is usually the cheapest. Flights on Sunday cost about 13% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Tampa St. Petersburg (PIE) is the cheapest airport to fly into from Knoxville. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in New York, which is the most popular destination in the United States. From there, it's easy to continue on to other popular destinations such as Las Vegas, Chicago and Orlando.
  • If you want the shortest trip, choose the Knoxville to the United States nonstop route. If you'd rather save money, the route via Jacksonville (JAX) is usually the cheapest.

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 4214 reviews
8.0Comfort
7.5Entertainment
8.6Crew
7.0Food
8.1Boarding
Airline reviews

Stop asking fir people to check carry on and then bind are free. Then the wait to get your luggage is ridiculous. This particular flight came with a 45 min wait, after waiting in tarmac waiting for a gate inhaling jet exhaust. And how about those landings?! Do the pilots not know the earth is coming up under the descending plane?! This is the only airline I get sick on. Every. Time.

4.0 OkayVera, Oct 2026
Read more Southwest reviews

Stop asking fir people to check carry on and then bind are free. Then the wait to get your luggage is ridiculous. This particular flight came with a 45 min wait, after waiting in tarmac waiting for a gate inhaling jet exhaust. And how about those landings?! Do the pilots not know the earth is coming up under the descending plane?! This is the only airline I get sick on. Every. Time.

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

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Still need to work out the kinks on the new assigned seating boarding process. Otherwise, a very good flight.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

No space for our carryon and needed to check at plane before boarding !

Flight attendants were in a bad mood and we were late

I didn't use the onboard amenities, so it is difficult to comment on those services. Otherwise, the flight from Nashville to Toronto was quite crowded, but the boarding process and the flight itself were perfectly fine.

I Love Delta but one of the flight crew training in courtesy snd hospitality.

The temperature on the flight was unbearably hot and they were unable to serve waters and did t make any adjustments. This impacted us both when leaving, we pushed away from the gate but didn’t taxi for takeoff for awhile then arrived ‘early’ yet were stuck in the plane for longer than we should have been.

My seats are comfortable because I choose to fly in the exit rows and this time upgraded to first class with minimum sky miles. Otherwise, I would not be happy in regular seats or even middle comfort seats. Onboarding on the return flight from Nashville to Atlanta was hot and very uncomfortable for over 30 minutes due to extreme hot weather. However, Delta should provide some other air flow option as it was almost unbearable until 10 minutes after take-off. First class seats should be equipped with cup holders. Currently, the middle console is used and is flat and prone to spilling drinks.

There is consistently no communication/updated time slots in the app on when a flight will board when its delayed, which is the most frustrating as a consumer trying to understand if they need to get food now, or if there is actually a chance for them to eat during their layover. This keeps being my experience with delta and a potential reason to change airlines.

My flight home from Knoxville, TN, included a layover in Atlanta. I boarded the aircraft in Zone 5 and although there was limited overhead space, I was able to put my 'backpack' style roller-bag above my seat. Unfortunately, due to continued bad weather, we had to deplane. There were many people who would have missed their connection, so they rebooked. When we were re-boarding, the gate agent welcomed zone 5 and then made an announcement: All roller-bags for zone 5 passengers and higher will need to be gate checked. I promptly pushed the telescoping handle in and held my bag like a backpack. I was able to bring it on board, which was a relief. Upon entering the aircraft it became apparent that there was easily 40% open overhead space. There were audible signs of angry passengers who felt duped into checking their bags when in fact there were noticeably LESS passengers on the aircraft and TONS of overhead space. I'm not sure what kinds of parameters are used to determine when to cut off roller-bags from being brought on board, but it seemed deceptive and underhanded to have so many people get stuck checking their bags when clearly there was ample room for at least one more zone.

The CRJ-900 was clean but the overhead air vents were broken in our First Class row, making the cabin very hot until about 30 mins into the flight. The flight attendants were both extremely apologetic and accommodating though so that is why I rated the flight as very good. They checked on us many times and truly showed they cared. The snacks for an hour and a half flight could be better. Would be nice if there was a small plated meal over convenient store snacks. WiFi also was not working. And it would be nice if Delta had adjustable headrests on these planes.

I was in Comfort and we didn’t get any drinks, chips or anything! First Class got full service on the flight and Comfort got nothing. Seat was horrible and uncomfortable

Short trip, no food and therefore no expectation for much interaction with staff who were pleasant and professional. My critique is on comfort of the seats. Exit rows and comfort seats do not provide enough personal space for 3 side-by-side seats, especially when in the middle row. Some passengers are not considerate of the middle seat and there should be signs that state something to the effect of: "please consider giving middle seats use of the armrests."

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The united employees at the gate treated me very rudely and called me nefarious

The head rest is too big and cannot be placed differently/removed. Causes one head to tilt forward and increase back pain

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.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Even though we were delayed, we were able to make our connection

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

The employees at Sioux Falls airport were friendly and helpful. As a veteran/retired military Allegiant allows two checked bags, one carry on bag and a seat on the plane all at no cost. The flight crew and pilots were friendly and very competent.

The check-in and flight crew employees are excellent. The flight was good and the seats were adequate.

The flights to and from Cincinnati were great at being on time for both, departures and arrivals. The planes could use some updating.

It was a dismal experience. The flight was delayed for 4 hours, and we spent hours in the plane, without air, during the summer. We were not provided with water, and the medical assistance was inadequate when it arose.

The landing the pilot was very smooth. The flight attendant was kind of rude.The boarding the plane in punta Gorda was not great made us wait out in the heat 😞

My exit seat was very comfortable Coffee was to be purchased but sodas free 😏

It was poor a four hour delay and no explanation for the delay. What’s a 35 dollars going to do. It also made me miss my car rental,

It was on time. Flight was comfortable. Staff was nice. It was the way a flight should always be.

The price was the only good thing about this flight. It was scary during takeoff when the plane tilted side to side. It made me feel very nervous as I have never had a take-off that unsmooth. There was no on-flight movie or music options and the only complimentary option was water. Other airlines offer trail mix or a caramel cookie and pop options as complimentary. This flight was a 2.5 hour flight. I understand for shorter flights not having options, but a flight 2 hours or longer should offer more complimentary options and in flight entertainment. Also the seats did not recline and for a longer flight reclining seats are a must for comfort.

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.

The flight was overbooked. And the gate agent basically said that the flight will not leave unless two people came forward to give up their seats. Offered money. Raised the $$ too. But we were there for a while and flight was delayed. When passengers approached the gate agent asking what would happen if no one volunteered- the answer was flight would be cancelled! Ridiculous! It’s American’s fault for overbooking. The service level is going from Bad to worse it seems.

It would be helpful to be able to download an eticket from either American airlines or Cathay Pacific; not just Cathay Pacific.

My wife has a scooter and they where supposed to send from departure to destination and had it go to connecting flight,not good.Nobody has knowledge of the scooters or the battery's.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Did not get any refreshments. Crew was very nice but limited. Small seats

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

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.

This was a horrible American Airlines experience, and it discourages me from flying with them again. It may have stemmed from a mechanical delay, but it appeared that the team was unprepared to respond to the delay. After boarding, we waited an hour before finally taking off. After landing at our destination, we waited an additional hour on the tarmac waiting for a gate (at 8:00pm) to be assigned and cleared. The flight crew did their best, but they were clearly tired and also ready to be done for the day. Because of the delay, I missed a connecting flight. It was a very poor experience.

Fantastic! If it had not been for a check-in agent in Knoxville I may have not gotten my passes on British Airways. I couldn’t check-in online because British Airways had messed us the info on my tickets to London & Inverness. AA’s was great! British Airways was a continuous series of delays and frustrations.

Wheelchair was waiting for me,changed to a better seat which was great as it's hard for me to walk

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