TYS - FSD

$329 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 8/27. 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
$329
Typical prices: $412-$308
Delta
Thu 8/27Sun 8/30
TYS - FSD • 1 stop
Top airlines
Cheapest • from $329 (round-trip)
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
Cheapest • Avg $399 (round-trip)
Shortest trip • 5h 09m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
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

Thu, Aug 27 - Sun, Aug 30
Delta Logo
6:15 pm - 10:46 pm
TYS
-
FSD
5h 31m
1 stop
Delta Logo
5:25 am - 1:24 pm
FSD
-
TYS
6h 59m
1 stop
$329Delta
Thu, Aug 27 - Sun, Aug 30
Delta Logo
6:15 pm - 10:46 pm
TYS
-
FSD
5h 31m
1 stop
Delta Logo
5:15 am - 1:24 pm
FSD
-
TYS
7h 09m
2 stops
$334Delta
Fri, Apr 10 - Tue, Apr 14
United Airlines Logo
5:53 pm - 9:54 pm
TYS
-
FSD
5h 01m
1 stop
United Airlines Logo
1:43 pm - 10:29 pm
FSD
-
TYS
7h 46m
1 stop
$339United Airlines
Fri, Apr 10 - Tue, Apr 14
United Airlines Logo
7:00 am - 10:42 am
TYS
-
FSD
4h 42m
1 stop
United Airlines Logo
1:43 pm - 10:43 pm
FSD
-
TYS
8h 00m
2 stops
$344United Airlines
Fri, Apr 10 - Tue, Apr 14
American Airlines Logo
5:00 am - 2:47 pm
TYS
-
FSD
10h 47m
2 stops
American Airlines Logo
12:29 pm - 10:56 pm
FSD
-
TYS
9h 27m
2 stops
$349American Airlines
Thu, Aug 27 - Sun, Aug 30
United Airlines Logo
4:56 pm - 11:50 pm
TYS
-
FSD
7h 54m
1 stop
United Airlines Logo
11:17 am - 4:59 pm
FSD
-
TYS
4h 42m
1 stop
$402United Airlines
Thu, Aug 27 - Sun, Aug 30
Delta Logo
5:30 am - 12:28 pm
TYS
-
FSD
7h 58m
2 stops
Delta Logo
5:15 am - 1:24 pm
FSD
-
TYS
7h 09m
2 stops
$424Delta
Thu, Aug 27 - Sun, Aug 30
American Airlines Logo
12:42 pm - 9:55 pm
TYS
-
FSD
10h 13m
2 stops
American Airlines Logo
6:00 am - 12:25 pm
FSD
-
TYS
5h 25m
1 stop
$437American Airlines
Fri, Jun 5 - Sun, Jun 7
Delta Logo
3:30 pm - 7:49 pm
TYS
-
FSD
5h 19m
1 stop
Delta Logo
5:15 am - 11:09 am
FSD
-
TYS
4h 54m
1 stop
$449Delta
Thu, Aug 27 - Sun, Aug 30
American Airlines Logo
12:42 pm - 9:55 pm
TYS
-
FSD
10h 13m
2 stops
American Airlines Logo
6:00 am - 2:29 pm
FSD
-
TYS
7h 29m
2 stops
$482American 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 February, where tickets cost $269 (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$329
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 63% 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 $329 for a round-trip ticket.

  • 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 $401 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 9514 reviews
7.3Comfort
7.7Boarding
8.1Crew
6.6Food
7.1Entertainment
Airline reviews

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

8.0 ExcellentAnonymous, Mar 2026
ORD - EWR
Read more United Airlines reviews

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

They promise free wi-fi prior to boarding and then once on board you are informed you have to purchase wifi even after being a mileagePlus member.

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

Awful. No counter attendants. No dinner offered due to delays.

Horrible service no Wi-Fi connection on both leg of the flight and they are refusing to fix bad service

Better snacks but flight and crew were amazing on this flight

Found that the plane used for this short flight is smaller and therefore the seats are really squeezed tight.

It was the most un-special flight experience in my life.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

Flight was on-time, boarding was flawless and the crew was friendly.

The staff are very, very professional. It's what flying should feel like.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

The flight itself was excellent but the gate attendant made me check my carryon since she said it was an inch too big. I’ve had no problems with this carryon on recent flights on Qantas, Delta, Austrian, Southwest Airlines even though the overhead bins are the same size. there were other carryons in the bins that also looked larger than mine and there was room left in the bins for more. When I picked up my carryon from baggage claim one of the wheels had broken off.

The flight changed gates multiple times and flight had to be delayed multiple times

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

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

Information on your arrival and departure airports