TYS - FSD

$225 Find Cheap Flights from Knoxville to Sioux Falls

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 Sioux Falls departing on 5/12. 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 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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Everything you should know

Cheapest round-trip
$294
Typical prices: $308-$412
American Airlines
Mon 8/17Sat 8/29
TYS - FSD • 1 stop
Cheapest one-way
$249
Delta
Tue 5/12
TYS - FSD • 1 stop
Top airlines
American Airlines
Cheapest • from $294 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Knoxville and Sioux Falls. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Dallas (DFW)
Cheapest • Avg $434 (round-trip)
Chicago (ORD)
Shortest trip • 5h 10m (one-way)
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 33% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sioux Falls!
Flight Deals
Booking Insights
Flight 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

Mon, Aug 17 - Sat, Aug 29
American Airlines Logo
12:20 pm - 4:35 pm
TYS
-
FSD
5h 15m
1 stop
American Airlines Logo
5:15 pm - 11:53 pm
FSD
-
TYS
5h 38m
1 stop
$294American Airlines
Mon, Aug 17 - Sat, Aug 29
American Airlines Logo
12:20 pm - 4:35 pm
TYS
-
FSD
5h 15m
1 stop
American Airlines Logo
6:00 am - 3:50 pm
FSD
-
TYS
8h 50m
2 stops
$300American Airlines
Wed, Mar 25 - Sat, Mar 28
American Airlines Logo
5:40 am - 12:41 pm
TYS
-
FSD
8h 01m
1 stop
American Airlines Logo
5:21 pm - 11:51 pm
FSD
-
TYS
5h 30m
1 stop
$326American Airlines
Wed, Mar 25 - Sat, Mar 28
American Airlines Logo
5:00 am - 1:36 pm
TYS
-
FSD
9h 36m
2 stops
American Airlines Logo
5:21 pm - 11:51 pm
FSD
-
TYS
5h 30m
1 stop
$331American Airlines
Wed, Mar 25 - Sat, Mar 28
American Airlines Logo
5:00 am - 1:36 pm
TYS
-
FSD
9h 36m
2 stops
American Airlines Logo
2:07 pm - 11:50 pm
FSD
-
TYS
8h 43m
2 stops
$337American Airlines
Wed, Mar 25 - Sat, Mar 28
American Airlines Logo
5:00 am - 1:36 pm
TYS
-
FSD
9h 36m
2 stops
American Airlines Logo
2:07 pm - 11:50 pm
FSD
-
TYS
8h 43m
2 stops
$362American Airlines
Thu, May 14 - Mon, May 18
Allegiant Air Logo
9:40 pm - 5:21 pm
TYS
-
FSD
20h 41m
1 stop
Allegiant Air Logo
10:45 am - 9:48 pm
FSD
-
TYS
10h 03m
1 stop
$366Allegiant Air
Sat, May 9 - Mon, May 11
American Airlines Logo
5:00 am - 2:47 pm
TYS
-
FSD
10h 47m
2 stops
American Airlines Logo
7:39 pm - 11:18 am
FSD
-
TYS
14h 39m
1 stop
$367American Airlines
Sat, Jun 27 - Fri, Jul 3
United Airlines Logo
5:57 pm - 10:07 pm
TYS
-
FSD
5h 10m
1 stop
United Airlines Logo
1:18 pm - 10:19 pm
FSD
-
TYS
8h 01m
1 stop
$380United Airlines
Fri, May 8 - Mon, May 11
Multiple Airlines Logo
7:30 am - 5:21 pm
TYS
-
FSD
10h 51m
1 stop
Multiple Airlines Logo
6:38 pm - 10:36 am
FSD
-
TYS
38h 58m
2 stops
$383Multiple Airlines
Booking Insights

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.

How much is a round-trip flight from Knoxville to Sioux Falls?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Knoxville to Sioux Falls departing in August.

What is the cheapest month to fly from Knoxville to Sioux Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Sioux Falls, 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 Sioux Falls is April, where tickets cost $268 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $643 and $517 respectively.

Good to know

Low seasonFebruary
Cheapest flight$249
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 61% 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 $249 for a one-way ticket and $294 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?

    Star Alliance, and oneworld are the airline alliances operating flights between Knoxville and Sioux Falls, with Star Alliance 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 $408 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 $470 and an overall rating of 7.1.

  • 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.

Reviews of the 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 9345 reviews
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
8.1Crew
Airline reviews

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.

10.0 ExcellentAnonymous, Feb 2026
DEN - RSW
Read more United Airlines reviews

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.

Very old flight - time to retire it for newer airplanes

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

Arriving plane went to wrong gate. Flight Attendant was late. Was in no Hurry when he arrived. Flight was fine. Plane had to wait 20 minutes to get assigned a gate due to designated gate tied up. barely connected.. Boarded extremely late on final leg of trip.

We arrived 25 minutes early only to be told our gate was occupied and so we sat for close to 30 minutes to pull into a gate. That’s not an early arrival!

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

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

Information on your arrival and departure airports