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$269+ 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — TYS
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
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 August 21, 2025.

Round-trip from

$269
(American Airlines)

Popular in

March

Cheapest in

January

Average price

$422
From Billings Logan Intl to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 10% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 21, 2025.

This American Airlines deal was found by Cheapflights users on 8/20. 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.
Sat 10/251:54 pmBIL - TYS
1 stop8h 29mAmerican Airlines
Sat 11/18:09 amTYS - BIL
1 stop6h 34mAmerican Airlines
Deal found 8/20$269
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Thu 9/47:00 amBIL - TYS
1 stop6h 10mUnited Airlines
Mon 9/87:00 amTYS - BIL
1 stop6h 16mUnited Airlines
Deal found 8/19$319
This Delta deal was found by Cheapflights users on 8/20. 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.
Sun 10/266:25 amBIL - TYS
1 stop14h 30mDelta
Sat 11/111:34 amTYS - BIL
2 stops10h 08mDelta
Deal found 8/20$433
This American Airlines deal was found by Cheapflights users on 8/20. 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.
Wed 10/11:59 pmBIL - TYS
1 stop8h 22mAmerican Airlines
Fri 10/34:37 pmTYS - BIL
1 stop7h 12mAmerican Airlines
Deal found 8/20$445
This American Airlines deal was found by Cheapflights users on 8/20. 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.
Sun 10/261:54 pmBIL - TYS
1 stop7h 57mAmerican Airlines
Sat 11/18:09 amTYS - BIL
1 stop6h 34mAmerican Airlines
Deal found 8/20$448
This United Airlines deal was found by Cheapflights users on 8/19. 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 9/25:00 amBIL - TYS
1 stop8h 10mUnited Airlines
Wed 9/34:40 pmTYS - BIL
1 stop8h 06mUnited Airlines
Deal found 8/19$461
This United Airlines deal was found by Cheapflights users on 8/19. 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 9/32:35 pmBIL - TYS
1 stop5h 55mUnited Airlines
Thu 9/412:00 pmTYS - BIL
2 stops10h 34mUnited Airlines
Deal found 8/19$466

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 August 21, 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

Sat 10/25

1:54 pm-12:23 am

1 stop8h 29m

Knoxville McGhee Tyson

Sat 11/1

8:09 am-12:43 pm

1 stop6h 34m

$269

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Thu 9/4

7:00 am-3:10 pm

1 stop6h 10m

Knoxville McGhee Tyson

Mon 9/8

7:00 am-11:16 am

1 stop6h 16m

$319

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Sun 10/26

6:25 am-10:55 pm

1 stop14h 30m

Knoxville McGhee Tyson

Sat 11/1

11:34 am-7:42 pm

2 stops10h 08m

$433

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Wed 10/1

1:59 pm-12:21 am

1 stop8h 22m

Knoxville McGhee Tyson

Fri 10/3

4:37 pm-9:49 pm

1 stop7h 12m

$445

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Sun 10/26

1:54 pm-11:51 pm

1 stop7h 57m

Knoxville McGhee Tyson

Sat 11/1

8:09 am-12:43 pm

1 stop6h 34m

$448

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 9/2

7:00 am-3:10 pm

1 stop6h 10m

Knoxville McGhee Tyson

Thu 9/4

7:00 am-11:16 am

1 stop6h 16m

$461

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 9/2

5:00 am-3:10 pm

1 stop8h 10m

Knoxville McGhee Tyson

Wed 9/3

4:40 pm-10:46 pm

1 stop8h 06m

$461

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Wed 9/3

6:02 am-4:19 pm

1 stop8h 17m

Knoxville McGhee Tyson

Thu 9/4

4:48 pm-8:57 pm

1 stop6h 09m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

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, January is the cheapest month in which you can book a flight from Billings to Knoxville (average of $295). Flying from Billings to Knoxville in March is currently the most expensive (average of $376). 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 August 21, 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
8,930 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,930 reviews
United Airlines
7.4
Good
8,930 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,930 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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 $319, American Airlines can have you in Knoxville from Billings in 6h 10m. 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 $268. These flights start at 53% 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, January is the cheapest month in which you can book a flight from Billings to Knoxville (average of $295). Flying from Billings to Knoxville in March is currently the most expensive (average of $376). 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
Morristown
Cherokee
Corbin
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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$508FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$268Average$503FlexibilityNo cancel feeOn-time71%

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