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Cheap flights from Knoxville to Helena from $515

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Helena departing on 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Knoxville to Helena

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 1:39 pm
TYS
-
HLN
32h 39m
2 stops
United Airlines Logo
2:25 pm - 10:50 am
HLN
-
TYS
18h 25m
2 stops
$515United Airlines
Fri, Apr 3 - Mon, Apr 13
United Airlines Logo
7:00 am - 9:33 pm
TYS
-
HLN
16h 33m
2 stops
United Airlines Logo
2:25 pm - 10:29 pm
HLN
-
TYS
6h 04m
1 stop
$528United Airlines
Fri, Apr 3 - Mon, Apr 13
United Airlines Logo
4:30 pm - 9:33 pm
TYS
-
HLN
7h 03m
1 stop
United Airlines Logo
2:25 pm - 10:29 pm
HLN
-
TYS
6h 04m
1 stop
$640United Airlines
Fri, Apr 3 - Mon, Apr 13
United Airlines Logo
8:30 am - 1:39 pm
TYS
-
HLN
7h 09m
1 stop
United Airlines Logo
6:15 am - 3:06 pm
HLN
-
TYS
6h 51m
1 stop
$4,717United Airlines
Fri, Apr 3 - Mon, Apr 13

United Airlines flights from Knoxville to Helena

Our best United Airlines deals on Knoxville to Helena flight tickets
United Airlines
Jan 24
TYS4:25 pmKnoxville McGhee Tyson
7h 01m
1 stop
HLN9:26 pmHelena
Jan 28
HLN2:27 pmHelena
6h 04m
1 stop
TYS10:31 pmKnoxville McGhee Tyson
$494
United Airlines
Jan 24
TYS11:40 amKnoxville McGhee Tyson
11h 46m
2 stops
HLN9:26 pmHelena
Jan 28
HLN6:15 amHelena
6h 59m
1 stop
TYS3:14 pmKnoxville McGhee Tyson
$499
United Airlines
Jan 24
TYS11:40 amKnoxville McGhee Tyson
11h 46m
2 stops
HLN9:26 pmHelena
Jan 28
HLN6:15 amHelena
12h 37m
2 stops
TYS8:52 pmKnoxville McGhee Tyson
$505

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 16, 2026.
Use the filters below to find and compare flights from Knoxville to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleHelena

TYS - HLN

TYSHLN

Knoxville McGhee Tyson

Fri 4/3

7:00 am-1:39 pm

2 stops32h 39m

Helena

Mon 4/13

2:25 pm-10:50 am

2 stops18h 25m

$515

KnoxvilleHelena

TYS - HLN

TYSHLN

Knoxville McGhee Tyson

Fri 4/3

7:00 am-9:33 pm

2 stops16h 33m

Helena

Mon 4/13

2:25 pm-10:29 pm

1 stop6h 04m

$528

KnoxvilleHelena

TYS - HLN

TYSHLN

Knoxville McGhee Tyson

Fri 4/3

4:30 pm-9:33 pm

1 stop7h 03m

Helena

Mon 4/13

2:25 pm-10:29 pm

1 stop6h 04m

$640

KnoxvilleHelena

TYS - HLN

TYSHLN

Knoxville McGhee Tyson

Fri 4/3

8:30 am-1:39 pm

1 stop7h 09m

Helena

Mon 4/13

6:15 am-3:06 pm

1 stop6h 51m

$4,717

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Helena from

How to get the cheapest flight ticket from Knoxville to Helena

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 Helena?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Helena from Knoxville according to our data. American Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 3 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.

When to book flights from Knoxville to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Helena according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Helena (TYS to HLN) flight deals and tips

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

Fastest flight time

7h 01m

Direct flights

None
The fastest flight from Knoxville to Helena takes 7h 01m
There are no direct flights from Knoxville to Helena. There are no popular flight routes from Knoxville to Helena.
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  • How far is Knoxville McGhee Tyson to Helena by plane?

    The distance between Knoxville McGhee Tyson and Helena is about 1621.2 mi. Typically, this will take 7h 01m by plane in normal conditions.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Helena Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Helena Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Helena Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Helena 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 Knoxville McGhee Tyson Airport to Helena Airport.

  • What documentation or ID do you need to fly to Helena Airport?

    The required travel and health documents for your Helena Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Helena Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Knoxville to Helena?

Best airlines flying from Knoxville to Helena

Compare and see reviews for airlines that fly from Knoxville to Helena with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $294Free CancellationRating
7.4
9,163 reviews
Search United Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Knoxville to Helena for you.

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

Flights from Knoxville to Helena with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Knoxville to Helena?

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

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

Price alerts on flights to Helena from Knoxville 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.

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