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$246+ Cheap flights from Billings to Knoxville (BIL - TYS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — TYS
Jan 24 — Jan 311
Sat 1/24
Sat 1/31
1 adult, Economy
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Cheap flight deals from Billings to Knoxville

Cheapest flights from Billings to Knoxville
Explore the most affordable flight options available from Billings to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 25, 2025.

This Delta deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:25 amBIL - TYS
2 stops12h 07mDelta
Thu 1/811:05 amTYS - BIL
2 stops10h 20mDelta
Deal found 12/24$414
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 amBIL - TYS
1 stop6h 30mUnited Airlines
Thu 1/84:25 pmTYS - BIL
1 stop6h 58mUnited Airlines
Deal found 12/24$454
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 amBIL - TYS
1 stop6h 30mUnited Airlines
Fri 1/96:45 amTYS - BIL
2 stops10h 37mUnited Airlines
Deal found 12/24$459
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 amBIL - TYS
1 stop6h 30mUnited Airlines
Wed 1/75:29 pmTYS - BIL
2 stops21h 55mUnited Airlines
Deal found 12/24$563
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 amBIL - TYS
1 stop6h 30mUnited Airlines
Tue 1/65:29 pmTYS - BIL
2 stops21h 55mUnited Airlines
Deal found 12/24$593
This Delta deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:25 amBIL - TYS
2 stops12h 07mDelta
Wed 1/76:10 pmTYS - BIL
2 stops25h 20mDelta
Deal found 12/24$629
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 amBIL - TYS
1 stop6h 30mUnited Airlines
Mon 1/57:23 pmTYS - BIL
2 stops16h 27mUnited Airlines
Deal found 12/24$643
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 amBIL - TYS
1 stop6h 30mUnited Airlines
Sun 1/45:45 amTYS - BIL
2 stops17h 39mUnited Airlines
Deal found 12/24$668
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 amBIL - TYS
1 stop6h 30mUnited Airlines
Sat 1/38:40 amTYS - BIL
1 stop27h 09mUnited Airlines
Deal found 12/24$703
This Delta deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:25 amBIL - TYS
2 stops12h 07mDelta
Tue 1/66:10 pmTYS - BIL
2 stops27h 15mDelta
Deal found 12/24$708

Find flight deals from Billings to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 25, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$344
(American Airlines)

One-way from

$246
(American Airlines)

Popular in

March

Cheapest in

January

Average price

$377
Provider with most accurate pricing for Billings Logan Intl-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Billings Logan Intl-Knoxville McGhee Tyson flights.
Search Deals
From Billings Logan Intl to Knoxville McGhee Tyson
Search Deals
One-way flight from Billings Logan Intl to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to Knoxville 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, Cheapflights users made 2,558,603 searches. Data last updated December 25, 2025.
Use the filters below to find and compare flights from Billings to Knoxville that are best for you.

Fly from

Billings

Fly to

Knoxville

Route

Depart

Return

Price

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 1/6

6:54 am-8:56 pm

2 stops12h 02m

Knoxville McGhee Tyson

Sat 1/10

6:00 am-1:36 pm

1 stop9h 36m

$344

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Wed 1/14

2:45 pm-10:31 pm

1 stop5h 46m

Knoxville McGhee Tyson

Sat 1/17

4:25 pm-9:23 pm

1 stop6h 58m

$369

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 4/21

2:03 pm-11:47 pm

1 stop7h 44m

Knoxville McGhee Tyson

Fri 5/8

4:33 pm-8:46 pm

1 stop6h 13m

$388

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Fri 1/9

5:22 pm-8:39 am

3 stops37h 17m

$284

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Fri 1/9

11:47 am-11:19 pm

2 stops9h 32m

$286

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Compare providers for flights from Billings to Knoxville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Billings to Knoxville in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Billings-Knoxville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Billings-Knoxville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Billings-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billings-Knoxville flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Billings-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Billings to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Billings with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Billings to Knoxville

What is the cheapest month to book a flight from Billings to Knoxville?

Currently, February is the cheapest month in which you can book a flight from Billings to Knoxville (average of $268). Flying from Billings to Knoxville in March is currently the most expensive (average of $986). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated December 25, 2025.
Read reviews from past customers who have flown United Airlines and American Airlines from Billings to Knoxville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,116 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,116 reviews
United Airlines
7.4
Good
9,116 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,056 reviews
United Airlines
7.4
Good
9,116 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from Billings to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Billings to Knoxville?

    For as low as $369, American Airlines can have you in Knoxville from Billings in 5h 46m. There are 1449 mi between Billings and Knoxville. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Billings to Knoxville round-trip?

    Our cheapest airline available from Billings to Knoxville is American Airlines. Our recent data shows that you can find tickets from as low as $268 on this airline. An additional option worth looking into is United Airlines, starting at $373. These flights start at 49% lower than the current average price 3 months from now.

  • Can I find deals for flights from Billings to Knoxville that include hotel bookings?

    Yes. In addition to deals on Billings to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billings to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Billings to Knoxville.

  • Can I find deals for business class flights from Billings to Knoxville?

    Yes. Cheapflights offers flight deals from Billings to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Billings to Knoxville?

    Currently, February is the cheapest month in which you can book a flight from Billings to Knoxville (average of $268). Flying from Billings to Knoxville in March is currently the most expensive (average of $986). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Cherokee
Crossville
Corbin
Morristown
Bryson City
Alcoa
Oak Ridge
Murphy

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Top 2 airlines flying from Billings to Knoxville

Discover the top 2 airlines that operate flights from Billings to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$268Average$479FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$373Average$508FlexibilityNo cancel feeOn-time69%

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