When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to Knoxville McGhee Tyson Airport?

Prices for flights from Sioux City Sioux Gateway Airport to Knoxville McGhee Tyson Airport were last updated today.

How old do you have to be to fly from Sioux City Sioux Gateway Airport to Knoxville McGhee Tyson Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sioux City Sioux Gateway Airport to Knoxville McGhee Tyson Airport.

What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

The travel and health documents required for your trip to Knoxville McGhee Tyson Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Knoxville McGhee Tyson Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$304 Cheap Flights from Sioux City to Knoxville in 2025/26

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Find the cheapest flights from Sioux City to Knoxville

Round-trip

One-way

Cheap round-trip flights

12:45 pm - 9:07 pmSUX-TYS

7h 22m1 stop

2:00 pm - 5:32 pmTYS-SUX

4h 32m1 stop

$304United Airlines

Find Deal

Tue, Mar 3 - Sat, Mar 7

12:45 pm - 11:19 pmSUX-TYS

9h 34m2 stops

2:00 pm - 5:32 pmTYS-SUX

4h 32m1 stop

$314United Airlines

Find Deal

Tue, Mar 3 - Sat, Mar 7

12:45 pm - 11:19 pmSUX-TYS

9h 34m2 stops

2:00 pm - 5:32 pmTYS-SUX

4h 32m1 stop

$359United Airlines

Find Deal

Tue, Mar 3 - Sat, Mar 7

12:45 pm - 11:19 pmSUX-TYS

9h 34m2 stops

10:16 am - 5:32 pmTYS-SUX

8h 16m2 stops

$464United Airlines

Find Deal

Tue, Mar 3 - Sat, Mar 7

12:45 pm - 11:19 pmSUX-TYS

9h 34m2 stops

10:16 am - 5:32 pmTYS-SUX

8h 16m2 stops

$509United Airlines

Find Deal

Tue, Mar 3 - Sat, Mar 7

United Airlines flights from Sioux City to Knoxville

Our best United Airlines deals on Sioux City to Knoxville flight tickets

United Airlines

Mar 3

SUX12:45 pmSioux City Sioux Gateway

7h 22m

1 stop

TYS9:07 pmKnoxville McGhee Tyson

Mar 7

TYS2:00 pmKnoxville McGhee Tyson

4h 32m

1 stop

SUX5:32 pmSioux City Sioux Gateway

$304

Find similar

United Airlines

Mar 3

SUX12:45 pmSioux City Sioux Gateway

9h 34m

2 stops

TYS11:19 pmKnoxville McGhee Tyson

Mar 7

TYS2:00 pmKnoxville McGhee Tyson

4h 32m

1 stop

SUX5:32 pmSioux City Sioux Gateway

$314

Find similar

United Airlines

Mar 3

SUX12:45 pmSioux City Sioux Gateway

9h 34m

2 stops

TYS11:19 pmKnoxville McGhee Tyson

Mar 7

TYS2:00 pmKnoxville McGhee Tyson

4h 32m

1 stop

SUX5:32 pmSioux City Sioux Gateway

$359

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Sioux CityKnoxville

SUX - TYS

SUXTYS

Sioux City Sioux Gateway

Tue 3/3

12:45 pm-9:07 pm

1 stop7h 22m

Knoxville McGhee Tyson

Sat 3/7

2:00 pm-5:32 pm

1 stop4h 32m

$304

Sioux CityKnoxville

SUX - TYS

SUXTYS

Sioux City Sioux Gateway

Tue 3/3

12:45 pm-11:19 pm

2 stops9h 34m

Knoxville McGhee Tyson

Sat 3/7

2:00 pm-5:32 pm

1 stop4h 32m

$314

Sioux CityKnoxville

SUX - TYS

SUXTYS

Sioux City Sioux Gateway

Tue 3/3

12:45 pm-11:19 pm

2 stops9h 34m

Knoxville McGhee Tyson

Sat 3/7

2:00 pm-5:32 pm

1 stop4h 32m

$359

Sioux CityKnoxville

SUX - TYS

SUXTYS

Sioux City Sioux Gateway

Tue 3/3

12:45 pm-11:19 pm

2 stops9h 34m

Knoxville McGhee Tyson

Sat 3/7

10:16 am-5:32 pm

2 stops8h 16m

$464

Sioux CityKnoxville

SUX - TYS

SUXTYS

Sioux City Sioux Gateway

Tue 3/3

12:45 pm-11:19 pm

2 stops9h 34m

Knoxville McGhee Tyson

Sat 3/7

10:16 am-5:32 pm

2 stops8h 16m

$509

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Sioux City to Knoxville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Knoxville?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Knoxville from Sioux City according to our data. American Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Knoxville. Keep in mind that there are 3 different airlines that fly to Knoxville on a routine basis, so you have a few additional options to choose from.

When to book flights from Sioux City to Knoxville

Are you open to changing your travel dates? Check out the ideal times to fly from Sioux City to Knoxville according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Sioux City to Knoxville (SUX to TYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sioux City to Knoxville

Direct flights	None

There are no direct flights from Sioux City to Knoxville. There are no popular flight routes from Sioux City to Knoxville.

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How far is Sioux City Sioux Gateway to Knoxville McGhee Tyson by plane?
The straight-line distance from Sioux City Sioux Gateway to Knoxville McGhee Tyson is 804.5 mi. 7h 22m is a normal flight duration for this route.
When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to Knoxville McGhee Tyson Airport?
Prices for flights from Sioux City Sioux Gateway Airport to Knoxville McGhee Tyson Airport were last updated today.
How old do you have to be to fly from Sioux City Sioux Gateway Airport to Knoxville McGhee Tyson Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sioux City Sioux Gateway Airport to Knoxville McGhee Tyson Airport.
What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?
The travel and health documents required for your trip to Knoxville McGhee Tyson Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Knoxville McGhee Tyson Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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Why use momondo?

Why should I use momondo to find a flight deal from Sioux City to Knoxville?

Finding the right flight to Knoxville from Sioux City is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Knoxville quick and easy, saving you time and money.

Can I find flights from Sioux City to Knoxville with flexible booking policies on momondo?

momondo does allow users to show only those flights to Knoxville from Sioux City which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Sioux City to Knoxville?

momondo provides multiple filters to help you find the best flight to Knoxville from Sioux City. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Sioux City to Knoxville right now. Can momondo alert me if prices change?

Price alerts on flights to Knoxville from Sioux City are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.