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$339+ Cheap flights from Billings to Knoxville (BIL - TYS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — TYS
Feb 11 — Feb 181
Wed 2/11
Wed 2/18
1 adult, Economy
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Cheap 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 January 12, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$339
(United Airlines)

Popular in

March

Cheapest in

December

Average price

$438
Provider with most accurate pricing for Billings Logan Intl-Knoxville McGhee Tyson flight deals.
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Provider most trusted by Cheapflights users for Billings Logan Intl-Knoxville McGhee Tyson flights.
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From Billings Logan Intl to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 6% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 12, 2026.

This United Airlines deal was found by Cheapflights users on 1/11. 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.
Tue 1/272:45 pm
BIL
-
TYS
1 stop5h 46m
United Airlines
Sat 1/314:25 pm
TYS
-
BIL
1 stop6h 58m
United Airlines
Deal found 1/11$339
This United Airlines deal was found by Cheapflights users on 1/11. 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.
Tue 3/242:35 pm
BIL
-
TYS
1 stop5h 55m
United Airlines
Tue 3/314:30 pm
TYS
-
BIL
1 stop6h 27m
United Airlines
Deal found 1/11$369
This American Airlines deal was found by Cheapflights users on 1/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/222:15 pm
BIL
-
TYS
1 stop6h 32m
American Airlines
Thu 1/296:00 am
TYS
-
BIL
1 stop9h 36m
American Airlines
Deal found 1/11$374
This American Airlines deal was found by Cheapflights users on 1/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:51 pm
BIL
-
TYS
1 stop8h 05m
American Airlines
Fri 5/84:09 pm
TYS
-
BIL
1 stop8h 34m
American Airlines
Deal found 1/11$384
This United Airlines deal was found by Cheapflights users on 1/12. 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.
Tue 4/2110:38 am
BIL
-
TYS
2 stops9h 51m
United Airlines
Fri 5/84:25 pm
TYS
-
BIL
1 stop6h 26m
United Airlines
Deal found 1/12$399
This United Airlines deal was found by Cheapflights users on 1/11. 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.
Mon 3/232:35 pm
BIL
-
TYS
1 stop22h 27m
United Airlines
Tue 3/314:30 pm
TYS
-
BIL
1 stop6h 27m
United Airlines
Deal found 1/11$458

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 January 12, 2026.
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 1/27

2:45 pm-10:31 pm

1 stop5h 46m

Knoxville McGhee Tyson

Sat 1/31

4:25 pm-9:23 pm

1 stop6h 58m

$339

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 4/21

1:51 pm-11:56 pm

1 stop8h 05m

Knoxville McGhee Tyson

Fri 5/8

4:09 pm-10:43 pm

1 stop8h 34m

$344

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Thu 1/22

2:15 pm-10:47 pm

1 stop6h 32m

Knoxville McGhee Tyson

Thu 1/29

6:00 am-1:36 pm

1 stop9h 36m

$374

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 4/21

10:38 am-10:29 pm

2 stops9h 51m

Knoxville McGhee Tyson

Fri 5/8

4:25 pm-8:51 pm

1 stop6h 26m

$399

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Mon 3/23

2:35 pm-3:02 pm

1 stop22h 27m

Knoxville McGhee Tyson

Tue 3/31

4:30 pm-8:57 pm

1 stop6h 27m

$458

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Sat 3/21

5:50 pm-10:49 am

2 stops14h 59m

Knoxville McGhee Tyson

Tue 3/31

4:30 pm-8:57 pm

1 stop6h 27m

$513

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

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 January.
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, September 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 $605). 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.

How much does it cost to fly round-trip from Billings to Knoxville?

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 January 12, 2026.
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
9,149 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,149 reviews
United Airlines
7.4
Good
9,149 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,114 reviews
United Airlines
7.4
Good
9,149 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 $339, United 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 $340. These flights start at 48% 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, September 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 $605). 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

Browse thousands of different options on Cheapflights for your next trip

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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 January 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$268Average$479FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$340Average$508FlexibilityNo cancel feeOn-time69%

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