$343 Cheap Flights from Helena (HLN) to Knoxville (TYS)

View $343 flight on Mon, May 11, 2026Opens in a new window

Popular airlines from Helena, MT (HLN-Helena Regional) to McGhee Tyson Airport (TYS)

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Cheap Flights from Helena to Knoxville (HLN-TYS)

Prices were available within the past 7 days and start at $343 for one-way flights and $299 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Nov 23 - Sun, Dec 7
HLN
Helena
TYS
Knoxville
$299 Roundtrip, found 5 days ago
$299
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, Nov 23 from Helena to Knoxville, returning Sun, Dec 7, priced at $299 found 5 days ago
Delta
Sun, Nov 23 - Mon, Dec 8
HLN
Helena
TYS
Knoxville
$324 Roundtrip, found 5 days ago
$324
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, Nov 23 from Helena to Knoxville, returning Mon, Dec 8, priced at $324 found 5 days ago
United
Tue, Nov 18 - Mon, Nov 24
HLN
Helena
TYS
Knoxville
$379 Roundtrip, found 5 days ago
$379
Roundtrip
found 5 days ago
Select United flight, departing Tue, Nov 18 from Helena to Knoxville, returning Mon, Nov 24, priced at $379 found 5 days ago
United
Tue, Nov 18 - Thu, Nov 27
HLN
Helena
TYS
Knoxville
$384 Roundtrip, found 5 days ago
$384
Roundtrip
found 5 days ago
Select United flight, departing Tue, Nov 18 from Helena to Knoxville, returning Thu, Nov 27, priced at $384 found 5 days ago
United
Tue, Nov 18 - Sat, Dec 6
HLN
Helena
TYS
Knoxville
$409 Roundtrip, found 5 days ago
$409
Roundtrip
found 5 days ago
Select United flight, departing Tue, Nov 18 from Helena to Knoxville, returning Sat, Dec 6, priced at $409 found 5 days ago
Delta
Sun, Nov 23 - Wed, Dec 10
HLN
Helena
TYS
Knoxville
$414 Roundtrip, found 5 days ago
$414
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, Nov 23 from Helena to Knoxville, returning Wed, Dec 10, priced at $414 found 5 days ago
Delta
Sun, Nov 23 - Tue, Dec 9
HLN
Helena
TYS
Knoxville
$417 Roundtrip, found 5 days ago
$417
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, Nov 23 from Helena to Knoxville, returning Tue, Dec 9, priced at $417 found 5 days ago
Delta
Sun, Nov 23 - Fri, Dec 5
HLN
Helena
TYS
Knoxville
$427 Roundtrip, found 5 days ago
$427
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, Nov 23 from Helena to Knoxville, returning Fri, Dec 5, priced at $427 found 5 days ago
Delta
Mon, Nov 24 - Wed, Dec 10
HLN
Helena
TYS
Knoxville
$439 Roundtrip, found 5 days ago
$439
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Nov 24 from Helena to Knoxville, returning Wed, Dec 10, priced at $439 found 5 days ago
Alaska Airlines
Tue, Oct 14 - Wed, Oct 22
HLN
Helena
TYS
Knoxville
$577 Roundtrip, found 3 days ago
$577
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Oct 14 from Helena to Knoxville, returning Wed, Oct 22, priced at $577 found 3 days ago
Flights from Helena (HLN) to Knoxville (TYS)
Origin airport
Helena Regional
Destination airport
McGhee Tyson
Roundtrip price
$299
Distance
1623 mi

Helena to Knoxville Flights

The cheapest times to fly from Helena to Knoxville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Helena to Knoxville are during the month of November. You can find some of the cheapest flights from Helena to Knoxville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Helena to Knoxville

Sunday is one of the best days to book for cheap flights from Helena to Knoxville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Helena to Knoxville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Helena to Knoxville in 2025. You can also book with separate airlines for your outbound and return journeys, from $343 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Helena to Knoxville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Helena to Knoxville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Helena Regional Airport (HLN) to McGhee Tyson Airport (TYS) cost?
Lock in a cheap one-way flight from $343 or cheap return flight from $299 from Helena Regional Airport (HLN) to McGhee Tyson Airport (TYS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Helena Regional Airport (HLN) to McGhee Tyson Airport (TYS)?
The cheapest month to fly from HLN to TYS is November, when there's less demand. Off-peak season is often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Helena Regional Airport (HLN) to McGhee Tyson Airport (TYS)?
To find the cheapest airline flying from HLN to TYS, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Helena Regional Airport (HLN) to McGhee Tyson Airport (TYS)?
There aren't any daily nonstop flights from Helena Regional Airport (HLN) to McGhee Tyson Airport (TYS). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from HLN to TYS?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Helena Regional Airport (HLN) to McGhee Tyson Airport (TYS)?
To reach McGhee Tyson Airport (TYS) on time, opt for a flight that leaves Helena Regional Airport (HLN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Helena Regional Airport (HLN) to McGhee Tyson Airport (TYS) last-minute?
Holding off until right before your break to book a flight from HLN to TYS generally means paying more. Although you may find some last-minute discounts, they aren't always guaranteed. Keep your travel schedule open to boost your chances of snagging a bargain.
Is it cheaper to book a HLN to TYS flight and hotel package?
Compared with arranging hotels and flights separately, booking a HLN to TYS flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the hassle out of planning your trip. Just secure your flights and choose from our wide range of stays, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Helena Regional Airport (HLN) to McGhee Tyson Airport (TYS)?
Typically, you can cancel or modify your HLN to TYS flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want further information, head to our Customer Service portal.

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*Available to One Key members.