TYS - FSD

$249 Find Cheap Flights from Knoxville to Sioux Falls

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Sioux Falls departing on 10/3. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Sioux Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Sioux Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Sioux Falls, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Knoxville to Sioux Falls (TYS-FSD)

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

Fri, Oct 3 - Sun, Oct 5
American Airlines Logo
4:37 pm - 9:23 pmTYS-FSD
5h 46m1 stop
American Airlines Logo
7:00 am - 12:21 pmFSD-TYS
4h 21m1 stop
$249American Airlines
Find Deal
Tue, Sep 2 - Sat, Sep 6
American Airlines Logo
2:23 pm - 9:03 pmTYS-FSD
7h 40m1 stop
American Airlines Logo
5:33 pm - 12:21 amFSD-TYS
5h 48m1 stop
$260American Airlines
Find Deal
Tue, Jul 15 - Fri, Jul 18
Allegiant Air Logo
9:00 am - 9:47 amTYS-FSD
25h 47m1 stop
Allegiant Air Logo
8:06 pm - 10:47 pmFSD-TYS
25h 41m2 stops
$301Allegiant Air
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Fri, Jul 11 - Sat, Jul 12
 Logo
6:55 am - 3:47 pmTYS-FSD
33h 52m2 stops
 Logo
6:55 pm - 10:56 pmFSD-TYS
27h 01m1 stop
Fri, Jul 11 - Sat, Jul 12
Allegiant Air Logo
2:28 pm - 3:47 pmTYS-FSD
26h 19m1 stop
Allegiant Air Logo
6:55 pm - 10:56 pmFSD-TYS
27h 01m1 stop
$325Allegiant Air
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Tue, Jul 15 - Fri, Jul 18
 Logo
4:55 pm - 12:52 pmTYS-FSD
20h 57m2 stops
 Logo
8:06 pm - 10:47 pmFSD-TYS
25h 41m2 stops
Tue, Jul 15 - Fri, Jul 18
United Airlines Logo
1:56 pm - 5:45 pmTYS-FSD
4h 49m1 stop
United Airlines Logo
6:26 pm - 10:35 pmFSD-TYS
27h 09m1 stop
$408United Airlines
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Tue, Jul 15 - Fri, Jul 18
Delta Logo
6:42 am - 12:21 pmTYS-FSD
6h 39m1 stop
Delta Logo
11:12 am - 4:32 pmFSD-TYS
4h 20m1 stop
$448Delta
Find Deal
Tue, Jul 15 - Fri, Jul 18
Delta Logo
5:12 pm - 11:44 pmTYS-FSD
7h 32m2 stops
Delta Logo
11:12 am - 4:32 pmFSD-TYS
4h 20m1 stop
$453Delta
Find Deal
Fri, Aug 8 - Sun, Aug 10
United Airlines Logo
7:00 am - 10:22 pmTYS-FSD
16h 22m1 stop
United Airlines Logo
8:00 am - 1:21 pmFSD-TYS
4h 21m1 stop
$502United Airlines
Find Deal
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KAYAK's insights & trends for Knoxville to Sioux Falls flights

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

What’s the cheapest day of the week to fly from Knoxville to Sioux Falls?

The average price of all round-trip flights from Knoxville to Sioux Falls clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Sioux Falls on a Friday and more expensive on a Thursday. On your return trip to Knoxville, you should consider flying back on a Saturday, and avoid Thursdays for better deals.

Good to know

High seasonAugust
Cheapest flight$249
Most popular time to fly with an average 43% increase in price.
Flight from Knoxville to Sioux Falls

When to book flights from Knoxville to Sioux Falls

Are your dates flexible? Find out the best times to travel from Knoxville to Sioux Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Knoxville to Sioux Falls

  • What is the cheapest flight from Knoxville to Sioux Falls?

    In the last 3 days, the lowest price for a flight from Knoxville to Sioux Falls was $264 for a one-way ticket and $249 for a round-trip.

  • Do I need a passport to fly between Knoxville and Sioux Falls?

    No

  • Which airports will I be using when flying from Knoxville to Sioux Falls?

    Knoxville and Sioux Falls are both served by 1 main airport. You will leave Knoxville from Knoxville McGhee Tyson and will be arriving at Sioux Falls Joe Foss Field.

  • Which aircraft models fly most regularly from Knoxville to Sioux Falls?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to Sioux Falls?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Knoxville and Sioux Falls, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to Sioux Falls, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to Sioux Falls are United Airlines and American Airlines. With an average price for the route of $538 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $568 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Knoxville to Sioux Falls?

    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 Sioux Falls.

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

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

    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 to Sioux Falls with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and FSD can sometimes prove cheaper using this method.

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

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

Top airlines flying from Knoxville to Sioux Falls

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Sioux Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to Sioux Falls? 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.
7.4
United AirlinesOverall score based on 8790 reviews
7.7Boarding
6.6Food
8.1Crew
7.3Comfort
7.0Entertainment
Airline reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

2.0 MediocreAnonymous, Jun 2025LAX - SEA
Read more United Airlines reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

Smooth flight, especially take off and landing, and great crew on board. Really loved the stroopwaffles!

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

It’s a great flight. Service is good. Staff is awesome.

Everything you need to know for your flight from Knoxville to Sioux Falls

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